KR0144092B1 - Power supply control adapter - Google Patents

Abstract

The present invention relates to a power saving device of a peripheral circuit connected to a PC, in particular, by controlling the AC output of the adapter by using the operation logic signal of the video synchronization signal transmitted to the video port output terminal of the computer, thereby connecting to the power output terminal of the adapter. This is a low power adapter device for controlling computer peripherals to control the power supply of external devices to improve the power saving function. The power saving devices produced so far are only controlling the monitor. Since there is a problem in that unnecessary power is consumed, the present invention configures a circuit that can be automatically returned analogously without supplying power to the microprocessor when the input signal is off, and controls peripheral devices to control the range of power saving function. It is to maximize.

Description

Ultra low power adapter device for computer peripheral control

1 is a basic configuration of the present invention

2 is an embodiment of the output operation unit and the display unit of the present invention

3 is a logic diagram for each mode used in the present invention.

* Explanation of symbols for main parts of the drawings

10: sensing unit 20: operation control circuit unit

21: first switching unit 22: second switching unit

30: output part 30 ': output operation part

40: display unit

The present invention relates to a power saving device of a peripheral circuit connected to a PC, and in particular, by controlling the AC output of the adapter by using the operation logic signal of the video synchronization signal transmitted to the video port output terminal of the computer, to the power output terminal of the adapter. The present invention relates to an ultra-low power adapter device for controlling computer peripherals to control power supply of an external device to be connected.

In general, in supplying power to display devices of computer peripherals, if the input signal does not come in for a certain period of time, power is supplied to the microprocessor for monitor on / off control by switching to the auxiliary powerner instead of the main power to prevent unnecessary power waste and to reduce power. We are using method.

It outputs the horizontal synchronous signal and the vertical synchronous signal at the DC level when the input signal does not come in for a certain time depending on whether the horizontal synchronous signal and the vertical synchronous signal for outputting data through the input device are displayed on the screen of the display device. An input signal off mode, an input signal on mode for normally outputting a male synchronous signal and a vertical synchronous signal when an input signal is input, an input signal standby mode for normally outputting a horizontal synchronous signal and outputting a vertical synchronous signal at a DC level; The vertical synchronous signal is outputted normally and the operation logic is executed by dividing the horizontal synchronous signal into DC level. It is used to operate the microprocessor by turning down the main power and continuing the auxiliary power when the input signal is off. The monitor ON / OFF control signal is output by continuing supply. The.

However, current computer modems are equipped with a peripheral device such as a monitor or a printer.They also use a lot of adapters in order to receive power by using a common AC input line supplied from one line. Since the power-saving devices produced so far are only controlling the monitor, there is a problem that power consumption of computer peripherals is not properly achieved and unnecessary power is consumed.

The present invention is to solve the above problems, to configure the circuit that can be automatically returned to analog without supplying power to the microprocessor when the input signal is off and at the same time to control the peripheral devices to maximize the range of power saving function It is characterized in that.

That is, a sensing unit for detecting a horizontal synchronizing signal and a vertical synchronizing signal, an operation control unit for controlling the operation of the output unit by converting it into a DC voltage according to the signal input of the sensing unit, and an AC power supply according to the output signal of the operation control unit. An output unit for controlling the power supply to the supply terminal and a display unit for displaying the power saving mode state of the computer peripherals.

Hereinafter, described in detail with reference to the drawings.

1 and 2 are basic diagrams of the present invention. The horizontal and vertical synchronous signals for generating a monitor output signal according to an input signal are connected to a collector terminal to detect a signal, and the base terminal is a circuit stabilizing resistor (R7). A detection unit 10 comprising a transistor Q4 and Q5 connected to R8 and grounded to an emitter terminal; The collector terminal receives the direct voltage through the diodes D5 and D7 and the capacitors C2 and C4 when the horizontal synchronizing signal is input from the sensing unit 10, the diodes D6 and D8 and the resistors R4 and R6. And a waveform inverted by the switching operation of the transistors Q2 and Q3 consisting of a base terminal for inputting vertical and horizontal synchronous signals through the capacitors C3 and C5 and a grounded emitter terminal. Is charged to the capacitor C1, and is connected to the base terminal of the transistor Q1 constituting the output unit 30, which will be described later, and connected through the common diodes D1 and D2. An operation control circuit section 20 for inputting a voltage to the collector terminal of the transistor Q1 constituting the output section 30; The diodes D3 and D4 of the operation control circuit unit 20 are commonly connected and connected to the base terminal through a circuit stabilizing resistor R2 to operate the transistor Q1, and the diodes D1 and D2 and the resistor R1. An output unit 30 configured to connect a direct current voltage signal through the collector terminal to an AC power supply terminal through a coupler OPTO1, and the emitter terminal comprising a grounded transistor Q1; An output configured as an AC contact switch (SW1) which causes the light receiving unit (Q6) of the photocoupler (OPTO 1) to turn on or off the AC input at one end of the primary circuit on the AC input side in association with the light emitting unit (OPTO 1) A display unit including a first light emitting unit LED1 connected to an operating unit 30 'and an AC input side to indicate an on-off state of an input current, and a second light emitting unit LED2 to display a power saving mode state of a computer peripheral device; It consists of 40.

The operation control circuit 20 may be divided into a first switching unit 21 and a second switching unit 22, and the first switching unit 21 may provide a bias to the transistor Q2 when the horizontal synchronization signal is input. A diode D6, a capacitor C3 and a resistor R4, and a diode D5, D3, a resistor R3, and a capacitor C2 which direct-flow a horizontal synchronous signal to an output unit.

The second switching unit 22 converts the diode D8, the capacitor C5 and the resistor R6, which provide a bias to the transistor Q3 when the vertical synchronization signal is input, and directs the vertical synchronization signal to an output unit. It is composed of diodes D7 and D4, resistors R5 and capacitors C1 and C4.

According to the present invention configured as described above, the horizontal synchronous signal (H-sync) or the vertical synchronous signal (V-sync) provided to the sensing unit 10 of FIG. The video port is inputted to the operation control circuit unit 20 when necessary. At this time, the horizontal synchronous signal or the vertical synchronous signal connects the resistors R3 and R5 through the diodes D5 and D7 to supply a flat DC voltage to the collector terminals of the transistors Q2 and Q3. At the same time, the horizontal synchronizing signal through diodes D6 and D8 drives transistors Q2 and Q3 so that these transistors Q2 and Q3 perform a switching operation. Since the transistors Q2 and Q3 are emitter grounds, the inverted waveform at the time of switching is charged to the capacitor C1 through the diodes D3 and D4. This charging voltage is applied to the transistor Q1 as a bias voltage by the resistor R2, so the transistor Q1 is turned on.

Therefore, the direct voltage provided to the diodes D1 and D2 drives the light emitting part of the photocoupler OPTO 1 through the resistor R1.

The horizontal synchronizing signal and the vertical synchronizing signal logic are the same as those of the third degree (Vesa, NuTEK method), and this operation logic causes the output operation part 30 'shown in FIG.

FIG. 2 illustrates an output operation unit 30 'at the AC input input terminal. When the light receiving unit Q6 is turned on according to the light emitting unit of the output unit 30 photocoupler OPTO 1 of FIG. SW1) turns on, so AC power is applied to the circuit side (monitor circuit, peripheral device, printer, etc.).

In addition, when power is applied to the AC input side, the first light emitting unit LED1 is turned on. In the power saving mode state, the AC contact switch SW1 is turned off and the second light emitting unit LED2 is turned on.

That is, only when the horizontal synchronous signal and the vertical synchronous signal through the sensing unit 10 are applied, the AC power unit is driven by driving the pull-operating unit 30 ′ through the operation control circuit unit 20 and the output unit 30. Since it is supplied to a monitor or peripheral device, the primary circuit (AC input side) can be controlled to shut down the primary circuit on the AC input side in the OFF mode, which can be kept below 1 [W], contributing to power savings and providing power to the AC input side. By displaying the applied state to the first light emitting unit LED1 and the power saving mode state to the second light emitting unit LED2, the operating state of the adapter can be easily grasped.

For reference, when the dot printer (DDT PRINTER) is turned on, the conventional method consumes about 3 [W] of power, including a monitor and a printer, even in a power saving mode. However, the present invention interrupts the primary circuit of the adapter to stop current supply. It is economical.

Claims (2)

A sensing unit 10 for receiving a horizontal synchronous signal and a vertical synchronous signal provided from a computer, respectively; A second switching unit including a first switching unit 21 including a transistor Q2 turned on when the horizontal synchronous signal is input from the sensing unit 10 and a transistor Q3 turned on when the vertical synchronous signal is inputted; 22, each of the switching sections 21 and 22 includes an operation control circuit section 20 having a common output; An output unit 30 including a transistor Q1 for turning on the photocoupler OPTO 1 when the operation control circuit unit 20 is turned on; An output operation unit connected to the gate of the triac so that the light receiving unit of the photocoupler OPTO 1 turns on / off the AC input at one end of the primary circuit on the AC input side in association with the light emitting unit of the photocoupler OPTO 1. A display unit 40 connected to the 30 'and an AC input side, the first light emitting unit LED1 displaying an on-off state of an input current and a second light emitting unit LED2 displaying a power saving mode state of a computer peripheral; Ultra low power adapter device for controlling computer peripherals, characterized in that the control to control the power supply of the primary circuit or peripheral of the monitor. According to claim 1, wherein the output operation unit 30 'is connected to one end of the AC input side of the terminal of the light-receiving unit transistor Q6 which is operated in conjunction with the coupler (OPTO 1) light emitting unit of the output unit 30, the other end is Connected to the other end of the AC input side via the AC contact switch (SW1), the voltage source is controlled by the on / off operation of the coupler (OPTO 1), and AC power to the monitor and peripherals by the AC contact switch (SW1). An ultra low power adapter device for controlling computer peripherals, characterized in that configured to supply control.