CN103676676A - Intelligent switching circuit for eddy current retarder - Google Patents
Intelligent switching circuit for eddy current retarder Download PDFInfo
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- CN103676676A CN103676676A CN201210325889.1A CN201210325889A CN103676676A CN 103676676 A CN103676676 A CN 103676676A CN 201210325889 A CN201210325889 A CN 201210325889A CN 103676676 A CN103676676 A CN 103676676A
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Abstract
The invention relates to an intelligent switching circuit for an eddy current retarder. According to the invention, an MCU microcontroller is utilized to control an intelligent power tube to be used as an electronic switch; meanwhile, the MCU microcontroller can detect the voltage of an automobile storage battery and the current of a retarder excitation coil, when the storage battery voltage is less than a set value, a level signal output by a power supply voltage detection module for the MCU microcontroller is converted to low level from high level, or when the retarder excitation coil current is greater than a normal value, an overcurrent signal or level of the retarder excitation coil output by a current feedback module is converted to high level from low level, and the MCU microcontroller cuts off control signals of the intelligent power tube; if the retarder excitation coil current is in the normal range, output signals of a gear indicating lamp of the current feedback module are in high level, and the MCU microcontroller outputs corresponding gear indicating signals.
Description
Technical field
The present invention relates to electronic switching circuit technical field, particularly relate to the Intelligent switching circuit that a kind of current vortex retarder is used.
Background technology
Existing current vortex retarder is by changing retarder field coil electric current, to control the size of retarder damping force.The control of traditional retarder field coil electric current is to realize by relay contact; when retarder is worked, relay contact needs frequent movement; this will make to burn out with the relay contact arcing of the retarder of perceptual large current load; and relay also cannot detect retarder field coil electric current simultaneously, therefore utilize relay can not demonstrate accurately the gear and the effect of playing good protection retarder field coil of retarder.In addition, due to working time of the field coil of each Control not etc., this also by the economic life that causes each load not etc., make the aging unbalanced of retarder, cause current vortex retarder bulk life time to reduce, use cost raises.
In view of this, the design people is based on being engaged in this type of product design manufacture abundant practical experience and professional knowledge for many years, and coordinates the utilization of scientific principle, actively research and innovation in addition, the Intelligent switching circuit of using to founding a kind of current vortex retarder of new structure, makes it have more practicality.Through constantly research, design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
The object of the invention is to, the Intelligent switching circuit that a kind of current vortex retarder of new structure is used is proposed, thereby technical matters to be solved is to make it by MCU microprocessor controls intelligent power, realize the electric current of make-and-break of retarder field coil, and can to car power source voltage and retarder field coil electric current, detect in real time, make when car power source voltage exceeds normal range with the retarder field coil current value flowing through, MCU microcontroller can cut out the output of intelligent power automatically, with storage battery and generator and the retarder field coil on protection car, the gear of retarder also can be by MCU microcontroller by exporting field coil amperometry afterwards simultaneously, be very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.The Intelligent switching circuit that a kind of current vortex retarder proposing according to the present invention is used, it comprises: MCU microcontroller, supply voltage detection module, intelligent power driver module and current feedback module; The input end of wherein said supply voltage detection module is connected detection supply voltage with power supply, the output terminal of described supply voltage detection module is connected out-put supply detection signal with the input end of described MCU microcontroller; The output terminal of described MCU microcontroller is connected the control signal of output with the input end of described intelligent power driver module, the output terminal of described intelligent power driver module is connected output supply voltage with the field coil of described current vortex retarder; The input end of described current feedback module is connected the current feedback signal that receives described intelligent power driver module output with described intelligent power driver module, the output terminal of described current feedback module is connected output gear signal or over-current signal with the input end of described MCU microcontroller.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The Intelligent switching circuit that aforesaid current vortex retarder is used, wherein supply voltage detection module comprises the first voltage comparator, wherein said the first voltage comparator adopts LM293D, described power supply is connected with 3 pins of described the first voltage comparator by divider resistance, 2 pins of described the first voltage comparator connect a voltage stabilizing reference power supply, 1 pin of described the first voltage comparator is connected with the input end of described MCU microcontroller, the supply voltage of the described power supply detecting when 3 pins of described the first voltage comparator is during lower than the reference voltage of the described voltage stabilizing reference power supply of 2 pins of described the first voltage comparator, 1 pin out-put supply warning low level signal of described the first voltage comparator is given described MCU microcontroller, described MCU microcontroller cuts off output.
The Intelligent switching circuit that aforesaid current vortex retarder is used, 1 pin of wherein said the first voltage comparator is connected the output port as described power supply alarming low level signal with one first pull-up resistor, and the other end of described the first pull-up resistor is connected with the positive pole of a 5V power supply; 2 pins of described the first voltage comparator are connected with one first resistance, the other end of described the first resistance connects respectively one second resistance and one the 3rd resistance, the other end of described the second resistance is connected with the positive pole of described voltage stabilizing reference power supply, and the other end of described the 3rd resistance is connected with the negative pole of described voltage stabilizing reference power supply; 3 pins of described the first voltage comparator are connected with one the 4th resistance, the other end of described the 4th resistance connects respectively one the 5th resistance and one the 6th resistance, another termination of described the 5th resistance is connected with the positive pole of described power supply, and the other end of described the 6th resistance connects the negative pole of described power supply; 4 pins of described the first voltage comparator connect the negative pole of described 5V power supply; 8 pin of described the first voltage comparator connect the positive pole of described 5V power supply; The equal ground connection of negative pole of the negative pole of wherein said voltage stabilizing reference power supply, the negative pole of described power supply and described 5V power supply.
The Intelligent switching circuit that aforesaid current vortex retarder is used, wherein said intelligent power driver module comprises intelligent power, triode, diode and resistance, wherein said intelligent power adopts automobile intelligent power tube BTS550P, described diode comprises: first to fourth diode, wherein the first diode adopts Transient Suppression Diode 5KP36A, the second diode adopts Transient Suppression Diode 5KP36CA, the 3rd diode adopts Transient Suppression Diode 1.5KE39A, and the 4th diode adopts supper-fast recovery diode 30EPH03P, described triode adopts 2SD667, 1 pin of described intelligent power is also connected the negative pole of the positive pole of described the first diode, the negative pole of described the 4th diode and described the 3rd diode with 5 pin short circuits as output simultaneously, the negative pole of described the first diode is connected with the positive pole of described power supply, and the positive pole of described the 4th diode is connected the negative pole of described power supply with the positive pole of described the 3rd diode, 3 pins of described intelligent power connect respectively the positive pole of described power supply and the negative pole of described the second diode, and the positive pole of described the second diode connects the negative pole of described power supply, 2 pins of described intelligent power connect one the 7th resistance, the other end of described the 7th resistance connects respectively the negative pole of a voltage stabilizing diode and the collector of described triode, the positive pole of described voltage stabilizing diode connects the negative pole of described power supply, the emitter of described triode connects the negative pole of described power supply, the base stage of described triode connects one the 8th resistance, the other end of described the 8th resistance connects the negative pole of one the 5th diode, 4 pins of described intelligent power connect a current sense resistor, the other end of described current sense resistor connects the negative pole of described power supply, the positive pole of described the 5th diode connects the output terminal of described MCU microcontroller, when the output terminal of described MCU microcontroller is exported high level, 1 of described intelligent power connects and 5 pin output supply voltages, when the output terminal output low level of described MCU microcontroller, 1 of described intelligent power connects and 5 pin output low levels.
The Intelligent switching circuit that aforesaid current vortex retarder is used, wherein said current feedback module comprises second voltage comparer and resistance; Wherein said second voltage comparer adopts LM293D; 1 pin of described second voltage comparer is connected with the input end of described MCU microcontroller the described over-current signal of exporting described retarder field coil, and 7 pins of described second voltage comparer are connected output indicator gear signal with the input end of described MCU microcontroller; 1 pin of described second voltage comparer connects one second pull-up resistor simultaneously, and the other end of described the second pull-up resistor connects the positive pole of a 5V power supply; 2 pins of described second voltage comparer connect one the 9th resistance, the other end of described the 9th resistance connects respectively 1 the tenth resistance and 1 the 11 resistance, the positive pole of 5V power supply described in another termination of described the tenth resistance, the negative pole of 5V power supply described in another termination of described the 11 resistance; 3 pins of described second voltage comparer connect 1 the 12 resistance, and the other end of described the 12 resistance connects 4 pins of described intelligent power; 4 pins of described second voltage comparer connect the negative pole of described 5V power supply; 5 pin of described second voltage comparer connect 1 the 13 resistance, and the other end of described the 13 resistance connects 4 pins of described intelligent power; 6 pins of described second voltage comparer connect 1 the 14 resistance, the other end of described the 14 resistance connects respectively 1 the 15 resistance and 1 the 16 resistance, the other end of described the 15 resistance connects the positive pole of described 5V power supply, and the other end of described the 16 resistance connects the negative pole of described 5V power supply; 7 pins of described second voltage comparer are connected with one the 3rd pull-up resistor, and the other end of described the 3rd pull-up resistor connects the positive pole of described 5V power supply; 8 pins of described second voltage comparer connect the positive pole of described 5V power supply; The minus earth of wherein said 5V power supply.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the Intelligent switching circuit that a kind of current vortex retarder of the present invention is used at least has following advantages and beneficial effect: the Intelligent switching circuit that current vortex retarder of the present invention is used, utilize MCU microprocessor controls intelligent power as electronic switch, realize the control to retarder field coil electric current; It can also detect automobile storage battery voltage and retarder field coil electric current simultaneously; when battery voltage is during lower than setting value; the level signal that its supply voltage detection module is exported to MCU microcontroller becomes low level from high level; and when retarder field coil electric current is greater than normal value; the level signal that its current feedback module can export retarder coil over-current signal, export to MCU microcontroller becomes high level by low level; when above-mentioned two situations occur, MCU microcontroller all turn-offs the control signal of intelligent power; If retarder field coil electric current is in normal working range time, the gear pilot lamp signal output high level of current feedback module, MCU microcontroller is exported corresponding gear indicator signal.
In sum, the present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the Intelligent switching circuit used of a kind of current vortex retarder of the present invention.
Fig. 2 is the circuit diagram of the supply voltage detection module of the Intelligent switching circuit used of a kind of current vortex retarder of a preferred embodiment of the present invention.
Fig. 3 is the circuit diagram of the intelligent power driver module of the Intelligent switching circuit used of a kind of current vortex retarder of a preferred embodiment of the present invention.
Fig. 4 A-Fig. 4 B is the circuit diagram of the circuital current feedback module of the Intelligent switching circuit used of a kind of current vortex retarder of a preferred embodiment of the present invention.
Embodiment
For further setting forth the present invention, reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of Intelligent switching circuit, structure, feature and effect thereof that a kind of current vortex retarder proposing according to the present invention is used, be described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic can be known and present in the following detailed description coordinating with reference to graphic preferred embodiment.By the explanation of embodiment, should be to reach technological means and the effect that predetermined object takes to obtain one more deeply and concrete understanding to the present invention, yet appended graphic being only to provide with reference to the use with explanation, is not used for the present invention to be limited.
Referring to shown in Fig. 1, is the structural drawing of the Intelligent switching circuit used of a kind of current vortex retarder of the present invention.The Intelligent switching circuit that current vortex retarder of the present invention is used mainly consists of MCU microcontroller 10, supply voltage detection module 20, intelligent power driver module 30 and current feedback module 40.Wherein, the input end of supply voltage detection module 20 is connected detection supply voltage with power supply, and the output terminal of supply voltage detection module 20 is connected out-put supply detection signal with the input end of MCU microcontroller 10; The output terminal of MCU microcontroller 10 is connected the control signal of output with the input end of intelligent power driver module 30, the output terminal of intelligent power driver module 30 is connected output supply voltage with the field coil of current vortex retarder; The input end of current feedback module 40 is connected the current feedback signal that receives 30 outputs of intelligent power driver module with intelligent power driver module 30, the output terminal of current feedback module 40 is connected output gear signal or over-current signal with the input end of MCU microcontroller 10.The supply voltage detection module of the Intelligent switching circuit that current vortex retarder of the present invention is used is mainly used for detecting the voltage of automobile storage battery, the automobile storage battery voltage detecting when supply voltage detection module 20 is during lower than certain value, a low level of supply voltage detection module 20 outputs is to MCU microcontroller 10, and MCU microcontroller 10 turn-offs output with protection automobile storage battery and motor car engine, when the control signal of MCU microcontroller 10 outputs is high level, intelligent power driver module 30 meeting output supply voltages are to the field coil of current vortex retarder, when the control signal of MCU microcontroller 10 outputs is low level, intelligent power driver module 30 is output voltage not, and intelligent power driver module 30 meeting output electric current measure signals are to current feedback module 40 simultaneously, current feedback module 40 is mainly comprised of two voltage comparators, a voltage comparator circuit detects the electric current of intelligent power driver module 30 outputs, only have when the electric current of output is greater than certain value, the output of voltage comparator just can be overturn, and send into MCU microcontroller 10, thereby the corresponding gear of MCU microcontroller 10 output shows, another voltage comparator is also the electric current that detects 30 outputs of intelligent power driver module, when the electric current of output is greater than normal range, the output of voltage comparator just can be overturn, and send into MCU microcontroller 10, thereby the output that MCU microcontroller 10 turn-offs intelligent power driver module 30.
Referring to shown in Fig. 2, is the circuit diagram of the supply voltage detection module of the Intelligent switching circuit used of a kind of current vortex retarder of a preferred embodiment of the present invention.Supply voltage detection module 20 of the present invention comprises the first voltage comparator U15, wherein the first voltage comparator U15 adopts LM293D, power supply is connected with 3 pins of the first voltage comparator U15 by divider resistance, 2 pins of the first voltage comparator U15 connect a voltage stabilizing reference power supply, 1 pin of the first voltage comparator U15 is connected with the input end of MCU microcontroller 10, the supply voltage of the power supply low 3 pins that make the first voltage comparator U15 being detected when supply voltage is during lower than the reference voltage of the voltage stabilizing reference power supply of 2 pins of the first voltage comparator U15, the 1 pin out-put supply warning low level signal of the first voltage comparator U15 is to MCU microcontroller 10, MCU microcontroller 10 cuts off output.
The physical circuit of supply voltage detection module 20 connects as follows:
1 pin of the first voltage comparator U15 is connected the output port as power supply alarming low level signal with one first pull-up resistor R57, and the other end of the first pull-up resistor R57 is connected with the positive pole of a 5V power supply; 2 pins of the first voltage comparator U15 are connected R72 with one first resistance, the other end of the first resistance R 72 connects respectively one second resistance R 56 and one the 3rd resistance R 64, the other end of the second resistance R 56 is connected with the positive pole of voltage stabilizing reference power supply, and the other end of the 3rd resistance R 64 is connected with the negative pole of voltage stabilizing reference power supply; 3 pins of the first voltage comparator U15 are connected with one the 4th resistance R 60; the other end of the 4th resistance R 60 connects respectively one the 5th resistance R 55 and one the 6th resistance R 63; another termination of the 5th resistance R 55 is connected with the positive pole of power supply, and the other end of the 6th resistance R 63 connects the negative pole of power supply; 4 pins of the first voltage comparator U15 connect the negative pole of 5V power supply; 8 pin of the first voltage comparator U15 connect the positive pole of 5V power supply; Wherein the negative pole of voltage stabilizing reference power supply is, the equal ground connection of negative pole of the negative pole of power supply and 5V power supply.
Referring to shown in Fig. 3, is the circuit diagram of the intelligent power driver module of the Intelligent switching circuit used of a kind of current vortex retarder of a preferred embodiment of the present invention.Intelligent power driver module 30 of the present invention be take intelligent power U3 as core, and it comprises intelligent power U3, triode Q2, diode and resistance, wherein intelligent power U3 adopts the automobile intelligent power tube BTS550P of Infineon company, diode comprises: first to fourth diode D5, D17, D18 and D7, wherein the first diode D5 adopts the Transient Suppression Diode 5KP36A of TAITRON company, the second diode D17 adopts the Transient Suppression Diode 5KP36CA of TAITRON company, the 3rd diode D18 adopts the Transient Suppression Diode 1.5KE39A of TAITRON company, and the 4th diode D7 adopts the supper-fast recovery diode 30EPH03P of INTERNATIONAL company, triode Q2 adopts 2SD667, 1 pin of intelligent power U3 is also connected the negative pole of the positive pole of the first diode D5, the negative pole of the 4th diode D7 and the 3rd diode D18 with 5 pin short circuits as output simultaneously, the first negative pole of diode D5 and the positive pole of power supply are connected, and the positive pole of the 4th diode D7 is connected the negative pole of power supply with the positive pole of the 3rd diode D18, 3 pins of intelligent power U3 connect respectively the positive pole of power supply and the negative pole of the second diode D17, and the positive pole of the second diode D17 connects the negative pole of power supply, 2 pins of intelligent power U3 connect one the 7th resistance R 12, the other end of the 7th resistance R 12 connects respectively the negative pole of a voltage stabilizing diode D6 and the collector of triode Q2, the positive pole of voltage stabilizing diode D6 connects the negative pole of power supply, the emitter of triode Q2 connects the negative pole of power supply, the base stage of triode Q2 connects one the 8th resistance R 16, the other end of the 8th resistance R 16 connects the negative pole of one the 5th diode D25, 4 pins of intelligent power U3 connect a current sense resistor R17, the other end of current sense resistor R17 connects the negative pole of power supply, the positive pole of the 5th diode D25 connects the output terminal of MCU microcontroller 10, when the output terminal of MCU microcontroller 10 is exported high level, 1 of intelligent power U3 connects and 5 pin output supply voltages, when the output terminal output low level of MCU microcontroller 10, 1 of intelligent power U3 connects and 5 pin output low levels.
Referring to shown in Fig. 4 A-Fig. 4 B, is the circuit diagram of the circuital current feedback module of the Intelligent switching circuit used of a kind of current vortex retarder of a preferred embodiment of the present invention.Current feedback module 40 of the present invention comprises second voltage comparer U2 and resistance; Wherein second voltage comparer U2 adopts LM293D; 1 pin of second voltage comparer U2 is connected the over-current signal of output retarder field coil with the input end of MCU microcontroller 10,7 pins of second voltage comparer U2 are connected output indicator gear signal with the input end of stating MCU microcontroller 10; 1 pin of second voltage comparer U2 connects one second pull-up resistor R8 simultaneously, and the other end of the second pull-up resistor R8 connects the positive pole of a 5V power supply; 2 pins of second voltage comparer U2 connect one the 9th resistance R 3, the other end of the 9th resistance R 3 connects respectively 1 the tenth resistance R 6 and 1 the 11 resistance R 13, the positive pole of another termination 5V power supply of the tenth resistance R 6, the negative pole of another termination 5V power supply of the 11 resistance R 13; The other end that 3 pins of second voltage comparer U2 connect 1 the 12 resistance R 10, the, 12 resistance R 10 connects 4 pins of intelligent power U3; 4 pins of second voltage comparer U2 connect the negative pole of 5V power supply; The other end that 5 pin of second voltage comparer U2 connect 1 the 13 resistance R 11, the, 13 resistance R 11 connects 4 pins of intelligent power U3; 6 pins of second voltage comparer U2 connect 1 the 14 resistance R 65, the other end of the 14 resistance R 65 connects respectively 1 the 15 resistance R 7 and 1 the 16 resistance R 14, the other end of the 15 resistance R 7 connects the positive pole of 5V power supply, and the other end of the 16 resistance R 14 connects the negative pole of 5V power supply; 7 pins of second voltage comparer U2 are connected with one the 3rd pull-up resistor R9, and the other end of the 3rd pull-up resistor R9 connects the positive pole of 5V power supply; 8 pins of second voltage comparer U2 connect the positive pole of 5V power supply; The minus earth of 5V power supply wherein.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. the Intelligent switching circuit that current vortex retarder is used, is characterized in that it comprises: MCU microcontroller, supply voltage detection module, intelligent power driver module and current feedback module; The input end of wherein said supply voltage detection module is connected detection supply voltage with power supply, the output terminal of described supply voltage detection module is connected out-put supply detection signal with the input end of described MCU microcontroller; The output terminal of described MCU microcontroller is connected the control signal of output with the input end of described intelligent power driver module, the output terminal of described intelligent power driver module is connected output supply voltage with the field coil of described current vortex retarder; The input end of described current feedback module is connected the current feedback signal that receives described intelligent power driver module output with described intelligent power driver module, the output terminal of described current feedback module is connected output gear signal or over-current signal with the input end of described MCU microcontroller.
2. the Intelligent switching circuit that current vortex retarder according to claim 1 is used, is characterized in that wherein said supply voltage detection module comprises the first voltage comparator, wherein said the first voltage comparator adopts LM293D, described power supply is connected with 3 pins of described the first voltage comparator by divider resistance, 2 pins of described the first voltage comparator connect a voltage stabilizing reference power supply, 1 pin of described the first voltage comparator is connected with the input end of described MCU microcontroller, the supply voltage of the described power supply detecting when 3 pins of described the first voltage comparator is during lower than the reference voltage of the described voltage stabilizing reference power supply of 2 pins of described the first voltage comparator, 1 pin out-put supply warning low level signal of described the first voltage comparator is given described MCU microcontroller, described MCU microcontroller cuts off output.
3. the Intelligent switching circuit that current vortex retarder according to claim 2 is used, 1 pin that it is characterized in that wherein said the first voltage comparator is connected the output port as described power supply alarming low level signal with one first pull-up resistor, and the other end of described the first pull-up resistor is connected with the positive pole of a 5V power supply; 2 pins of described the first voltage comparator are connected with one first resistance, the other end of described the first resistance connects respectively one second resistance and one the 3rd resistance, the other end of described the second resistance is connected with the positive pole of described voltage stabilizing reference power supply, and the other end of described the 3rd resistance is connected with the negative pole of described voltage stabilizing reference power supply; 3 pins of described the first voltage comparator are connected with one the 4th resistance; the other end of described the 4th resistance connects respectively one the 5th resistance and one the 6th resistance; another termination of described the 5th resistance is connected with the positive pole of described power supply, and the other end of described the 6th resistance connects the negative pole of described power supply; 4 pins of described the first voltage comparator connect the negative pole of described 5V power supply; 8 pin of described the first voltage comparator connect the positive pole of described 5V power supply; The equal ground connection of negative pole of the negative pole of wherein said voltage stabilizing reference power supply, the negative pole of described power supply and described 5V power supply.
4. the Intelligent switching circuit that current vortex retarder according to claim 1 is used, is characterized in that wherein said intelligent power driver module comprises intelligent power, triode, diode and resistance, wherein said intelligent power adopts automobile intelligent power tube BTS550P, described diode comprises: first to fourth diode, wherein the first diode adopts Transient Suppression Diode 5KP36A, the second diode adopts Transient Suppression Diode 5KP36CA, the 3rd diode adopts Transient Suppression Diode 1.5KE39A, and the 4th diode adopts supper-fast recovery diode 30EPH03P, described triode adopts 2SD667, 1 pin of described intelligent power is also connected the negative pole of the positive pole of described the first diode, the negative pole of described the 4th diode and described the 3rd diode with 5 pin short circuits as output simultaneously, the negative pole of described the first diode is connected with the positive pole of described power supply, and the positive pole of described the 4th diode is connected the negative pole of described power supply with the positive pole of described the 3rd diode, 3 pins of described intelligent power connect respectively the positive pole of described power supply and the negative pole of described the second diode, and the positive pole of described the second diode connects the negative pole of described power supply, 2 pins of described intelligent power connect one the 7th resistance, the other end of described the 7th resistance connects respectively the negative pole of a voltage stabilizing diode and the collector of described triode, the positive pole of described voltage stabilizing diode connects the negative pole of described power supply, the emitter of described triode connects the negative pole of described power supply, the base stage of described triode connects one the 8th resistance, the other end of described the 8th resistance connects the negative pole of one the 5th diode, 4 pins of described intelligent power connect a current sense resistor, the other end of described current sense resistor connects the negative pole of described power supply, the positive pole of described the 5th diode connects the output terminal of described MCU microcontroller, when the output terminal of described MCU microcontroller is exported high level, 1 of described intelligent power connects and 5 pin output supply voltages, when the output terminal output low level of described MCU microcontroller, 1 of described intelligent power connects and 5 pin output low levels.
5. the Intelligent switching circuit that current vortex retarder according to claim 4 is used, is characterized in that wherein said current feedback module comprises second voltage comparer and resistance; Wherein said second voltage comparer adopts LM293D; 1 pin of described second voltage comparer is connected with the input end of described MCU microcontroller the described over-current signal of exporting described retarder field coil, and 7 pins of described second voltage comparer are connected output indicator gear signal with the input end of described MCU microcontroller; 1 pin of described second voltage comparer connects one second pull-up resistor simultaneously, and the other end of described the second pull-up resistor connects the positive pole of a 5V power supply; 2 pins of described second voltage comparer connect one the 9th resistance, the other end of described the 9th resistance connects respectively 1 the tenth resistance and 1 the 11 resistance, the positive pole of 5V power supply described in another termination of described the tenth resistance, the negative pole of 5V power supply described in another termination of described the 11 resistance; 3 pins of described second voltage comparer connect 1 the 12 resistance, and the other end of described the 12 resistance connects 4 pins of described intelligent power; 4 pins of described second voltage comparer connect the negative pole of described 5V power supply; 5 pin of described second voltage comparer connect 1 the 13 resistance, and the other end of described the 13 resistance connects 4 pins of described intelligent power; 6 pins of described second voltage comparer connect 1 the 14 resistance, the other end of described the 14 resistance connects respectively 1 the 15 resistance and 1 the 16 resistance, the other end of described the 15 resistance connects the positive pole of described 5V power supply, and the other end of described the 16 resistance connects the negative pole of described 5V power supply; 7 pins of described second voltage comparer are connected with one the 3rd pull-up resistor, and the other end of described the 3rd pull-up resistor connects the positive pole of described 5V power supply; 8 pins of described second voltage comparer connect the positive pole of described 5V power supply; The minus earth of wherein said 5V power supply.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104633096A (en) * | 2014-12-03 | 2015-05-20 | 洛阳市黄河软轴控制器股份有限公司 | Road roller power gear-shifting control system |
| CN105245755A (en) * | 2014-07-11 | 2016-01-13 | 山东新北洋信息技术股份有限公司 | Medium conveying control method, medium conveying device and sheet-fed scanning device |
| CN106961750A (en) * | 2017-05-22 | 2017-07-18 | 蚌埠道生精密光电科技有限公司 | A kind of detection control apparatus of heat shrinkable tube heater |
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| CN106961750A (en) * | 2017-05-22 | 2017-07-18 | 蚌埠道生精密光电科技有限公司 | A kind of detection control apparatus of heat shrinkable tube heater |
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