KR20040009239A - Intellectual multi tap for saving power - Google Patents

Abstract

The present invention detects the power control applied to the mouse or keyboard of the personal computer in supplying power to the peripheral device of the personal computer and automatically controls the power to be supplied to the peripheral device only when the PC is operated. This is a power saving power strip.It is an intelligent power saving power tap that cuts off standby power of peripheral devices when the computer is not in use.It cuts off the AC power supplied to the peripheral devices when the PC is not in use. It has the function of supplying power to it.

The intelligent power saving power strip according to the present invention is an AC power input unit for supplying power to a personal computer and a peripheral device, the PC connection terminal receiving the necessary power and control signals from an AC power input unit receiving an external commercial AC power supply, and the PC connection. Internal circuit board for detecting the operation of the PC through the control signal and power supplied from the terminal and controlling the power of the AC power input unit;

3-stage switch, consisting of a function selection switch that supports general multi-tap mode, power-saving multi-tap mode, and power-off mode according to each contact point, and a PC power connector that supplies power to the PC, and peripheral power connector that supplies power to peripheral devices. It is possible to reduce the power waste by powering off a number of electronic and electrical devices working together at the same time, and to operate the function selector switch to perform a general multi-tap function, and can also be used as a standby power cut-off function as described above. The power saving effect can be obtained by completely blocking the standby power that is wasted when the peripheral device is not turned off unconsciously. Also, surge protection circuit is built-in so that surge and non-grounding which is input through external AC power line Surge, which occurs when the power of peripheral devices are turned on or off It can ever be prevented.

Description

Intelligent Power Saving Multi-tap {INTELLECTUAL MULTI TAP FOR SAVING POWER}

The present invention detects the power control applied to the mouse or keyboard of the personal computer in supplying power to the peripheral device of the personal computer and automatically controls the power to be supplied to the peripheral device only when the PC is operated. More specifically, it is an intelligent power saving power strip for shutting off standby power of peripheral devices when the computer is not in use.It cuts off the AC power supplied to the peripheral devices when the PC is not in use. It has the function of supplying power to the terminal to which the peripheral device is connected.

In the case of the conventional power-saving power strip, there is a method of manually turning on and off by attaching a separate power on / off switch for each peripheral device, which does not have an effect without the active operation of the user, but rather inconvenient to give the user a burden of many troublesome operation There was a lot.

In addition, there is a method of controlling the power of peripheral devices by measuring the current at the terminal connected to the power line of the computer and controlling the power of the peripheral device. The problem is that the power of the peripheral device is supplied depending on the power of the PC or the sensitivity. If not, there is a malfunction problem that can not be blocked.

In addition, since power for current sensing is supplied from an AC power line, power consumption for current sensing is consumed even when a computer is not used.

In the present invention, a computer-specific signal that is inevitably generated when the computer is operating, rather than the current sensing method of the computer power source, is used as the power on / off signal of the peripheral device, and the computer receives the power of the peripheral power control circuit from the computer. When it is turned on or off, the power supply of the peripheral device can be completely controlled, and the power of the peripheral power control circuit itself is supplied from the computer, thereby preventing extra power consumption.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intelligent power saving power strip for simultaneously applying power to various electrical and electronic products. More particularly, the present invention relates to an operation power supply from an input device of a personal computer in supplying power to peripheral devices of a personal computer such as a printer and a scanner. The present invention relates to an intelligent power-saving power strip that attempts to reduce power consumption by detecting and automatically controlling power to be supplied to the peripheral device only when the PC is in operation.

As the electrical and electronic products used in daily life increase, the multi-tap proposed to connect more electrical appliances to a limited number of power supplies, which is usually provided with one plug and two or more sockets And the plug and two or more sockets are connected in parallel, and when the plug of the power strip is connected to a power line of a power plant and is applied to a fixed power socket which can always draw commercial power, the corresponding AC power is connected to the plug of the power strip. It is applied to connected power sockets, so that power can be applied to two or more electronic products at the same time.

In addition, the computer is widely used, and various peripheral devices such as printers, scanners, and speakers are connected and used together, and multi-taps are frequently used to simultaneously supply power to many of these peripherals as well as computers.

However, these peripherals are used only when the computer peripherals are running. If you do not use the computer, you must turn off each device. If you do not use the computer, turn off the computer. Often throw away.

The present invention has been invented to solve the above-mentioned problems, and its object is to detect power or control signals applied from a personal computer to a keyboard or a mouse in supplying power to a peripheral device of the personal computer, and to detect the peripheral power only when the PC is operated. It provides an intelligent power-saving power strip to reduce power consumption by automatically controlling the power applied to the device.

1 is a block diagram of an intelligent power saving power strip according to the present invention.

2 is a block diagram of an intelligent power saving power strip according to the present invention.

※ Explanation of codes for main parts of drawing

101: PC connection terminal 102: control signal input terminal

103: internal circuit board 104: function selection switch

105: PC power connector 106,107,108,109,110: Peripheral device power connector

201: computer 202: surge protection circuit

203: power supply terminal 204: power supply control circuit

205: PC motion detection circuit 206: Function selection circuit

207: Peripheral Power Supply Terminal

As a constituent means for achieving the above object of the present invention, the present invention provides a power strip for supplying power to a personal computer and a peripheral device,

AC power input unit for receiving an external commercial AC power;

PC connection terminal for receiving the power and control signals required from the PC;

An internal circuit board which detects the operation of the PC through the control signal and the power supplied from the PC connection terminal and controls the AC power input unit power;

A three-stage switch, function selection switch supporting general multi-tap mode, power-saving multi-tap mode, power-off mode, etc. according to each contact point;

PC power connector for supplying power to the PC; And

It relates to an intelligent power-saving power strip characterized in that it comprises a peripheral power connector for supplying power to the peripheral devices.

1 is a block diagram of an intelligent power-saving power strip according to the present invention, an AC power input unit 111 for receiving external commercial AC power and a PC connection terminal 101 for receiving power and control signals from a PC. The control signal and power supplied from the 101 are detected by the control signal input terminal 102 to detect the operation of the PC and control the power supply of the AC power input unit. Function selection switch 104 supporting multi-tap mode, power-saving multi-tap mode, power-off mode, etc. PC power connector 105 for supplying power to the PC and peripheral power supply connectors for supplying power to peripheral devices 106, 107,

108,109,110.

Hereinafter, the configuration and operation of the intelligent power saving power strip according to the present invention will be described in detail with reference to FIG. 1.

1 is an embodiment of an intelligent power saving power strip according to the present invention which is used when power is simultaneously applied to a personal computer and its peripheral devices. It is also configured to be combined with PC power cord.

In FIG. 1, a power supply and a control signal for controlling a peripheral device may be supplied through a PC connection terminal.

The PC connection terminal is connected to any one of RS-232C terminal or parallel printer port, PC slot, mouse terminal, keyboard terminal, USB port, etc. of the PC when the PC is started to supply power and control signals. Receives and transmits to the internal circuit board, the internal circuit board may apply power to the peripheral power connector through the relay means by the power and control signal transmitted when the function selection switch in the power-saving multi-tap mode.

When the PC connection terminal is connected to the RS-232C, parallel port, or USB port, the function selection switch is switched from a control signal from a PC to an electronic contact circuit using an IC circuit such as the triac or SSR or a mechanical contact circuit such as a relay. In the power saving multi-tap mode, power is applied to the peripheral device power connector.

The internal circuit board may include a surge protection circuit so as to effectively suppress surges introduced into the AC power input unit or surges generated when power is turned on and off of peripheral devices.

The PC's power supply unit uses DC-5V, + 5V, -12V, + 12V, + 3.3V DC voltages when the PC is operating. The keyboard / mouse terminal (AT, ATX type), USB terminal, serial port of the computer The power supply for controlling peripheral power can be supplied from the computer's keyboard / mouse terminal (AT, ATX type), USB terminal, serial port, etc.As a control signal, the power itself supplied from the computer itself can be used as a signal. You can also receive separate signals through the serial, parallel, or USB ports.

The function selection switch is a three-stage switch, and according to each contact point, the entire six-hole can be used as a general power supply terminal in the case of FIG. 1, and the other contact point can also be used as a standby power-saving power strip when connecting a PC connection cord. Can be.

That is, the function selection switch supports normal multi-tap mode, power-saving multi-tap mode, and power-off mode so that power is not supplied to the power strip when the power is off.In the power-saving multi-tap mode, power is supplied to the PC power connector and the PC is started. When the circuit is configured by the relay contact in the internal circuit board or when the power is applied by the logic of the IC circuit such as triac or SSR, the power is supplied to the peripheral power connector.

If the function selection switch is in the normal multi-tap mode, power is supplied to both the PC power connector and the peripheral power connector.

In the above, the PC power connector 105 is coupled to the power plug provided in the personal computer body, the AC power input 111 is made of a form that is coupled to the indoor socket receiving the power, peripheral power connector 110 ) Consists of standard power sockets to which standard power plugs can be combined, such as a typical power strip.

In this state, when the power button of the personal computer is turned on, the AC power flows into the PC body through the PC power connector 105 of the intelligent power saving power strip according to the present invention.

Therefore, a current having a voltage of a predetermined level (-5V, +5, -12V, + 12V) flows through the conductive wire applied from the personal computer to the keyboard or the mouse, and the power is supplied to the internal circuit board (PC) through the PC connection terminal. It is applied to the relay contact of 103 to form a closed circuit. In this case, when the function selection switch is in the general multi-tap mode, power is supplied to the peripheral power connector 106, ..., 110 regardless of the relay contact. In the power-saving multi-tap mode, the closed circuit operates to connect to each power socket through the peripheral power connector 106, ... 110 to supply power to the peripheral device of the PC connected to the power socket. .

When the power button of the personal computer is turned off, a current having a predetermined level (-5V, + 5, -12V, + 12V) is disconnected from the conductor applied to the keyboard or the mouse by the personal computer. When the voltage applied to the mouse is 0, and the relay contact of the internal circuit board 103 is opened, and in the power saving multi-tap mode, the closed circuit is opened to disconnect the power to the peripheral power connector, thereby reducing the waste of power. No standby power is required.

Therefore, when the personal computer is turned off, power to peripheral devices connected to the peripheral power connector of the intelligent power saving power strip is also cut off.

2 is a block diagram of an intelligent power saving power strip according to the present invention.

In the power strip 208 for supplying power to the personal computer 201 and peripherals,

A PC motion detection circuit 205 for detecting a PC operation for receiving a control signal generated during the PC operation via the control signal input terminal 102 to detect the operation of the PC to drive an electrical contact method using an IC;

A power supply control circuit 204 for controlling AC power using a mechanical contact method using a relay or an electrical contact method using an IC using a control signal and a power source generated during PC operation;

A power supply terminal 203 that receives external AC power and supplies power to the power control circuit 204, the computer 201, and the function selection circuit 206;

A function selection circuit 206 for applying AC power to the peripheral device power supply terminal 207 according to each mode of the function selection switch 104 and the control signal input terminal 102 and the presence or absence of an input signal;

A peripheral power supply terminal 207 coupled to each power supply socket from the peripheral device and supplying AC power to the peripheral device; And

The surge protection circuit includes a surge protection circuit 202, which includes a surge protection circuit for suppressing surges introduced into an AC power line, surges caused by a non-contact, and surges generated when a peripheral device is turned on and off. The power save power strip 208 is shown.

The state of the function selection circuit in which AC power is applied to the peripheral device power supply terminal 207 in each mode of the function selection switch 104 and the control signal input terminal 102 and the presence or absence of an input signal is shown as follows.

Peripheral power supply status Function selector switch Control signal input terminal Peripheral Power Power saving multi tap mode Power and control signal Power supply No signal Power Off Normal multi tap mode Power and control signal Power supply No signal Power supply Power off mode No signal Power Off

As shown in the above table, when the function selection switch 104 is in the power saving multi-tap mode and the control signal input terminal 102 has power and control signals (that is, the computer is turned on), peripheral power is supplied.

On the contrary, when the function selection switch 104 is in the power saving multi-tap mode and the control signal input terminal 102 has no power and a control signal (that is, the computer is turned off), the peripheral power is cut off.

When the function selection switch 104 is in the normal multi-tap mode, the peripheral device power is supplied to the control signal input terminal 102 regardless of the signal.

When the function selection switch 104 is in the power-off mode, since no AC power is applied to the PC power connector 105, power is not supplied to the computer, and power is not supplied to the entire power strip.

1 and 2, the internal circuit board 103 of FIG. 1 includes a PC motion detection circuit 205, a power control circuit 204, and a power supply terminal 203 of FIG. And a part of the surge protection circuit 202 and the function selection circuit 206.

The function selection circuit 206 of FIG. 2 is connected to three terminals of the internal circuit board 104 and the function selection switch 104 of FIG. 1 and according to the state of the circuit and the terminal of the board, the peripheral power supply as shown in Table 1 above. AC power may be supplied or disconnected at the connector.

As a power supply means for directly supplying power and control signals for the operation of the power supply control circuit of the peripheral device, the power supply means can be supplied from a keyboard / mouse terminal (AT, ATX type), USB terminal, serial port, or the like of the computer.

As a means for supplying the control signal, the power supply itself supplied from the computer itself may be used as a signal, or a separate signal may be received through the serial port or the USB port.

As the power control means of the peripheral device, the AC power can be controlled by using a mechanical contact method using a relay or an electrical contact method using a IC (TRIAC, SSR, etc.) using a power source and a control signal received from a computer.

By operating the function selector switch, you can select a general power strip function and a power saving function that completely shuts off standby power from PC peripherals.

The surge protection circuit is built-in to effectively suppress the surge coming into the AC power line or the surge generated when the peripheral power is turned on and off.

In the present invention, the PC and its peripheral devices have been mainly described, but the present invention is not limited thereto, and the present invention can be applied to a plurality of electronic and electrical devices that operate together.

As described above, the intelligent power saving power strip according to the present invention is used in a personal computer operating with one or more peripheral devices, so that the applied power is automatically cut off when the personal computer is turned off without having to power off many peripheral devices. Therefore, it is possible to reduce the unnecessary power consumption, to obtain an energy saving effect, and to adopt the three-stage function selection switch to maintain the conventional multi-tap function.

Claims (6)

In the power strip which supplies power to personal computers and peripherals, AC power input unit for receiving an external commercial AC power; PC connection terminal for receiving the power and control signals required from the PC; An internal circuit board which detects the operation of the PC through the control signal and the power supplied from the PC connection terminal and controls the AC power input unit power; A three-stage switch, function selection switch supporting general multi-tap mode, power-saving multi-tap mode, power-off mode, etc. according to each contact point; PC power connector for supplying power to the PC; And Intelligent power strip characterized in that it comprises a peripheral power connector for supplying power to the peripherals. The method according to claim 1, The PC connection terminal is connected to any one of RS-232C terminal or parallel printer port, PC slot, mouse terminal, keyboard terminal, USB port, etc. of the PC when the PC is started to supply power and control signals. And an internal circuit board, wherein the internal circuit board is configured to apply power to the peripheral power connector through the relay means by a power and control signal transmitted when the function selection switch is in the power saving multi-tap mode. The method according to claim 1, The PC connection terminal is a mouse terminal, keyboard terminal, When connected to RS-232C, parallel port, or USB port, the function selection switch is in the power saving multi-tap mode from a control signal from a PC through an electronic contact circuit using a triac or SSR IC circuit or a mechanical contact circuit such as a relay. Intelligent power saving power strip, characterized in that for applying power to the peripheral device power connector. The method according to claim 1, The internal circuit board has a built-in surge protection circuit to effectively suppress the surge generated when the power supply on and off the surge input to the AC power input unit, peripheral intelligent power strip. The method according to claim 1, When the function selection switch is the power saving multi-tap mode and the control signal input terminal has power and control signals, power is supplied to the peripheral device connector. When the control signal input terminal has no power and control signal, the power is disconnected from the peripheral device connector. Intelligent power saving power strip, characterized in that. In the power strip which supplies power to personal computers and peripherals, A PC motion detection circuit configured to receive a control signal generated during PC operation through a control signal input terminal to detect a PC operation to drive an electrical contact method using an IC; A power control circuit for controlling AC power using a mechanical contact method using a relay or an electrical contact method using an IC by using a control signal and a power generated when a PC operates; A power supply terminal receiving external AC power to supply power to a power control circuit, a computer, and a function selection circuit; A function selection circuit for applying AC power to the peripheral device power supply terminal according to each mode of the function selection switch and the control signal input terminal and the presence or absence of an input signal; A peripheral power supply terminal coupled to each power supply socket from the peripheral device and supplying AC power to the peripheral device; And a surge protection circuit that includes a surge protection circuit to suppress surges introduced into an AC power line, surges caused by a non-contact, and surges generated when a peripheral device is turned on and off. .