CN105090862A - A multifunctional emergency LED light bulb with backup power supply - Google Patents

Abstract

A multifunctional emergency LED bulb with a backup power supply comprises a CC-CV control circuit, a battery charging and discharging protection circuit, a battery, a charging state display module, a UPS digital detection control circuit, an LED dimming circuit and an LED luminous source; the UPS digital detection control circuit is connected with the CC-CV control circuit, the battery charging and discharging protection circuit, the battery and the LED dimming circuit, the CC-CV control circuit, the battery charging and discharging circuit, the battery and the charging state display module are sequentially connected, the LED dimming circuit is connected with the LED luminous source, and the CC-CV control circuit is connected with the mains supply; the positive end of the LED luminous source is connected with the LED dimming circuit, and the negative end of the LED luminous source is connected with the UPS digital dimming control circuit through a triode Q1. The UPS digital detection control circuit enables the emergency LED bulb to have a flashlight function, an emergency lighting function, a conventional lighting function and a brightness memory function when the lamp is turned off, can remember the brightness adjusted when the lamp is turned off last time, and realizes automatic switching of the functions; the LED dimming circuit can adjust the brightness of the LED light source and meet the use requirement.

Description

A multifunctional emergency LED light bulb with backup power supply

technical field

The invention relates to a multifunctional emergency LED light bulb with backup power supply.

Background technique

Compared with incandescent lamps with the same brightness, LED bulbs can save 80% of the electric energy. The theoretical life of LEDs can reach 100,000 hours, which is dozens of times that of incandescent lamps. In recent years, polymer lithium batteries with particularly good safety have begun to be popularized and applied in various fields. The use of emergency LED bulbs with backup power will be the development direction of emergency lighting circuits.

Contents of the invention

The purpose of the present invention is to provide a multifunctional emergency LED with a backup power supply that is simple in design, reasonable in structure, driven by a UPS digital detection control circuit, and can indicate the charging state of the battery, adjust the brightness of the LED light source, and realize the function of closing the memory Light bulb, to overcome the deficiencies in the prior art.

A multi-functional emergency LED light bulb with a backup power supply designed for this purpose is characterized in that it includes a CC-CV control circuit, a battery charge and discharge protection circuit, a battery, a charging state display module, a UPS digital detection control circuit, and an LED Dimming circuit and LED light source; the UPS digital detection control circuit is connected with CC-CV control circuit, battery charging and discharging protection circuit, battery, LED dimming circuit, CC-CV control circuit, battery charging and discharging circuit, battery, charging The status display modules are connected sequentially, the LED dimming circuit is connected to the LED light source, the CC-CV control circuit is connected to the mains; the positive terminal of the LED light source is connected to the LED dimming circuit, and the negative terminal of the LED light source is connected to the UPS digital through the transistor Q1. Dimming control circuit connection.

Described UPS digital detection control circuit comprises the IC2 that is used to detect whether there is electricity in the mains, whether the mains is on or off, opening and closing the emergency lighting function, opening and closing the temporary lighting function, and closing the memory function. IC2 is composed of 6 NOT gates. The A-B point of the input terminal of the neutral gate of IC2 is electrically connected to one end connected to the mains power through the diode D1 and the resistor R1, and the GND terminal in the circuit is connected to the other end of the mains power through the resistor R2.

The 6 NOT gates of IC2 include IC2-1, IC2-2, IC2-3, IC2-4, IC2-5 and IC2-6; IC2-6 is connected to transistor Q1, so as to push the LED light source to turn on and realize the turn on / Brightness memory function when turning off, dimming, and turning off the light.

The CC-CV control circuit includes a rectification filter circuit, a transformer T1 and an IC1 for constant current and constant voltage control.

The battery charging and discharging protection circuit and charging state display module include IC3 for charging and discharging the battery and displaying the charging state of the battery.

The charging state display module also includes an indicator LED1 for displaying that the battery is being charged, and an indicator LED2 for displaying that the battery is fully charged.

The battery is a lithium polymer battery.

The present invention has the following beneficial effects:

Through the improvement plan adopted above, the structure of the emergency LED light bulb is simplified, and the lithium polymer battery is used to make it have the advantages of small size, large power, and long battery life; the CC-CV control circuit can provide stable power output, and It has the advantages of long life, low cost, and low calorific value; the battery charge and discharge protection circuit can well protect the charge and discharge of lithium polymer batteries to improve the service life of the battery, and display the charging status of the battery through the indicator light; UPS digital The detection and control circuit can detect in real time whether there is electricity in the mains and whether the mains is on or off, so that the emergency LED bulb has the functions of flashlight, emergency lighting, conventional lighting and brightness memory when the light is turned off, and can remember the last time it was turned off. The brightness is adjusted, and the automatic switching of the above functions is realized; the LED dimming circuit can adjust the brightness of the LED light source to meet the use requirements.

Description of drawings

Fig. 1 is a schematic structural diagram of a multifunctional emergency LED light bulb according to an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of a multifunctional emergency LED light bulb according to an embodiment of the present invention.

Fig. 3 is a functional block diagram of a multifunctional emergency LED light bulb according to an embodiment of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to Figure 1-Figure 3, this multi-functional emergency LED light bulb with backup power supply includes CC-CV control circuit, battery charge and discharge protection circuit, battery, charging status display module, UPS digital detection control circuit, LED dimming circuit and LED light source; the UPS digital detection control circuit is connected to the CC-CV control circuit, battery charge and discharge protection circuit, battery, and LED dimming circuit, and the CC-CV control circuit, battery charge and discharge circuit, battery, and charging status display module are sequentially connected. Connection, the LED dimming circuit is connected to the LED light source, the CC-CV control circuit is connected to the mains; the positive terminal of the LED light source is connected to the LED dimming circuit, and the negative terminal of the LED light source is connected to the UPS digital dimming control circuit through the triode Q1 connect.

CC-CV control circuit includes rectification filter circuit, transformer T1 and IC1 for constant current and constant voltage control. The battery charging and discharging protection circuit and charging state display module include IC3 for charging and discharging the battery and displaying the charging state of the battery.

The charging status display module also includes an indicator LED1 for displaying that the battery is being charged, and an indicator LED2 for displaying that the battery is fully charged.

The battery is a lithium polymer battery.

The UPS digital detection control circuit includes IC2 for detecting whether there is electricity in the mains, whether the mains is on or off, opening and closing the emergency lighting function, opening and closing the temporary lighting function, and closing the memory function. IC2 is composed of 6 NOT gates. In this circuit, IC2 Point A-B of the input end of the NOT gate is electrically connected to one end connected to the mains power through a diode D1 and a resistor R1, and the GND end in the circuit is connected to the other end of the mains power through a resistor R2. The 6 NOT gates of IC2 include IC2-1, IC2-2, IC2-3, IC2-4, IC2-5 and IC2-6; IC2-6 is connected to the transistor Q1, so as to drive the LED light source to turn on and meet the LED dimming function , and realize the brightness memory function when turning on/off, dimming, and turning off the light.

The input end of the rectification filter circuit is connected to the mains, and the output end is electrically connected to the primary winding group of the transformer T1 and IC1 to form a CC-CV control circuit, which converts the mains into a DC5V2A DC power supply (transformer T1's Secondary winding group output), 5V DC VCC enters pin 1 of IC3 for battery charging and discharging protection circuit and charging status display module, one end of the LED light source is connected to VCC, and the other end is connected to Q1, when Q1 is turned on, the LED emitter is driven The light source is turned on.

After the 5V power supply enters the first pin of IC3, the charging current is adjusted through the output connection resistor R14 of the third pin, and the fourth pin is the output of the charging power supply, and the output current directly enters the VCC terminal of the battery. When the battery is lower than 4.2V, IC3 is automatically turned on. Charging, IC3 pin 4 transmits power to the battery VCC terminal, when the battery terminal power reaches 4.2V, the charging circuit stops charging. The charging status display module displays whether the battery is fully charged, IC3 pin 2 is connected to indicator light LED1, and pin 6 is connected to indicator light LED2. When charging, the pin 2 of IC3 has a high level output, and the indicator LED1 is on; when fully charged, the high level of pin 2 of IC3 becomes low level, the low level of pin 6 becomes high level, and the indicator LED2 Lights up to indicate that the battery is fully charged. When the mains power is available, the battery charge and discharge protection circuit self-checks whether the battery is fully charged, so that the battery power is in an optimal state to ensure the service life of the battery.

Points A and B are respectively connected to the two extremes of the light bulb; LED dimming is accomplished by IC2-6, and there are two ways to adjust the brightness: 1. When using without AC (that is, in emergency use), use human body or metal objects Touch on point A-B, the number of times of touch is different, the lamp will automatically appear on and off and automatically adjust the brightness. 2. With the AC switch connected to the lamp (that is, when it is normally energized and used), the lamp will automatically appear on and off and automatically adjust the brightness through different times of on/off time.

When the UPS digital detection control circuit detects that the mains is powered, the emergency lighting function and the temporary lighting function are turned off. At this time, the LED light source can be controlled by turning on and off the control switch set on the mains opening and closing.

When the UPS digital detection control circuit detects that there is no electricity, the emergency lighting function and the temporary lighting function are turned on; Loop bonding, that is, IC2 judges that point A changes from 1 to 0, the output terminal of IC2-5 changes from 0 to 1, and the output of IC2-5 is sent to IC2-6 and the LED dimming circuit, and the triode connected to the LED dimming circuit Q1 pushes the LED light-emitting source to turn on; otherwise, the LED light-emitting source is turned off; thus the present invention has functions of flashlight, emergency lighting, conventional lighting and shutdown memory. Memory function, can memorize the luminosity when it was closed last time.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (7)

1. the multi-function emergency LED bulb with back-up source, is characterized in that, it comprises CC-CV control circuit, battery charge/discharge protection circuit, battery, charged state display module, UPS Digital Detecting control circuit, LED light adjusting circuit and LED light emitting source; Described UPS Digital Detecting control circuit is connected with CC-CV control circuit, battery charge/discharge protection circuit, battery, LED light adjusting circuit, CC-CV control circuit, battery charging and discharging road, battery, charged state display module connect successively, LED light adjusting circuit is connected with LED light emitting source, and CC-CV control circuit is electrically connected with city; The positive terminal of LED light emitting source and LED light adjusting circuit, the negative pole end of LED light emitting source is connected with UPS digital dimming control circuit by triode Q1.

2. the multi-function emergency LED bulb according to claim 1 with back-up source, it is characterized in that: described UPS Digital Detecting control circuit comprises the IC2 whether having electricity, civil power break-make for detecting civil power, open and close function of emergency illumination, open and close temporary lighting function, cut out memory function, IC2 is made up of 6 not gates, in this circuit, the A-B point of IC2 not gate input is electrically connected with the one end being connected civil power through diode D1, resistance R1, and in circuit, GND end is connected with the other end of civil power through resistance R2.

3. the multi-function emergency LED bulb according to claim 1 with back-up source, is characterized in that: 6 not gates of described IC2 comprise IC2-1, IC2-2, IC2-3, IC2-4, IC2-5 and IC2-6; IC2-6 connecting triode Q1, thus promote LED light emitting source and open, and realize On/Off, light modulation, brightness memory function when turning off the light.

4. the multi-function emergency LED bulb according to claim 1 with back-up source, is characterized in that: described CC-CV control circuit comprises current rectifying and wave filtering circuit, transformer T1 and the IC1 for constant current, Isobarically Control.

5. the multi-function emergency LED bulb according to claim 1 with back-up source, is characterized in that: described battery charge/discharge protection circuit and charged state display module comprise for the discharge and recharge of battery and the IC3 of battery charging state display.

6. the multi-function emergency LED bulb according to claim 5 with back-up source, is characterized in that: described charged state display module also comprise display battery charging indicator lamp LED1, display battery be full of electricity indicator lamp LED2.

7. the multi-function emergency LED bulb according to claim 1 with back-up source, is characterized in that: described battery is lithium polymer battery.