KR20040063667A - Apparatus of Restoring Normal Power from an Electric Damage - Google Patents

Abstract

PURPOSE: A device and a method for recovering the abnormal power are provided to recover an information terminal to a normal voltage state from an abnormal voltage state by discharging the remains of an electric property on a main board of the information terminal when the abnormal voltage state is generated in the information terminal. CONSTITUTION: A discharging path discharges an electric abnormality signal generated from the main board. A switch(304) switches the discharging path. The switch is equipped with a contact base(400), the first conductive film(400A) installed to an area corresponding to the half of the contact base, a rotating contactor(402) rotatively installed to the contact base, and the second conductive film(402A) installed to the area corresponding to the half of the rotating contractor by being contacted to the first conductive film.

Description

Apparatus of Restoring Normal Power from an Electric Damage}

The present invention relates to a power supply device for connecting a power supply voltage from a power supply device to a main board of an information terminal device, and more particularly, to an abnormal power recovery device for restoring a power failure in a main board. .

Information terminal devices such as a personal computer, a word processor, and a communication terminal are equipped with various peripheral devices to provide users with various additional functions in addition to processing basic information. have. The information terminal device includes a main board for processing information as well as driving a peripheral device and a power supply device for supplying a plurality of power voltages having different voltage levels to the main board. The supply of multiple supply voltages complicates the wiring between the power supply and the motherboard.

In addition, information terminal devices have tended to provide low power and a software control function of power supply incidentally. In other words, the information terminal device has a function to automatically adjust the power supply voltage when it is not used by the user, or to turn on the power supply voltage in response to a signal from an external device (ie, a peripheral device). It is added. Due to such low power and software control of the power supply, the connection wiring between the main board and the power supply in the information terminal device becomes more complicated, and furthermore, the connection work between the main board and the power supply becomes difficult.

As such, a power connector is used to simplify the complicated wiring between the complicated power supply and the main board and to facilitate the wiring connection work. In fact, as an example of the power connection device of the information terminal device, there may be mentioned the power connection device of the personal computer as shown in FIG.

Referring to FIG. 1, the power connection device of the personal computer is connected to the housing connector 100, the first to fourteenth capacitors C1 to C14, which are commonly connected to the base power line, and the storage connector 100. A resistor R1 is provided.

The accommodating connector 100 is mounted on a main board of a personal computer (not shown) so that the first to eighth voltage transmission lines VL1 to VL8, the base power line GND, and the first and second signal transmission lines on the main board are not shown. It is electrically connected to SL1 and SL2. In addition, the receiving connector 100 receives the power supply plug (not shown) extending from the power supply device (not shown) to be electrically connected to the power supply device. When connected to a power supply, the accommodating connector 100 allows the ground power line (GND) on the motherboard to be connected to the ground voltage source of the power supply as well as multiple power voltages from the power supply on the motherboard. The first to eighth voltage transmission lines VL1 to VL8 are supplied. In addition, the receiving connector 100 allows power state signals from the power supply device to be supplied to the first and second signal transmission lines SL1 and SL2 on the main board. Examples of the power supply voltage and the power state signal supplied to the voltage transmission lines VL1 to VL8 and the signal transmission lines SL1 and SL2 on the main board via the accommodating connector 100 are the power-on of the personal computer. The mode and power-down mode will be described.

When the personal computer is in the power-on mode (ie, when the personal computer is normally used by the user), the first voltage supply line VL1 is 3.3 V from the first and second pins of the receiving connector 100. The first supply voltage of the second to the main board, the second voltage transmission line (VL2) is a second supply voltage of 5V from the fourth and sixth pins of the receiving connector 100 to the motherboard, the fourth The voltage transmission line VL4 transmits the third supply voltage of 12 V from the tenth pin toward the main board, respectively. Each of the fifth to seventh voltage transmission lines VL5 to VL7 also receives a first supply voltage of 3.3 V from the eleventh pin of the accommodating connector 100 and a fourth supply voltage of -12 V from the twelfth pin. And a fifth supply voltage of -5 V from the eighteenth pin to the motherboard. In addition, the eighth voltage transmission line VL8 transmits a second supply voltage of 5 V from the nineteenth and twentieth pins of the accommodating connector 100 toward the main board.

Alternatively, when the personal computer is in the power-down mode (ie, when the personal computer is not used by the user), the first, second and fourth voltage transmission lines VL1, VL2, and VL4 to VL8 are supplied to the personal computer. The voltage is not supplied, whereas the standby voltage of 5 V is supplied from the power supply device only to the third voltage transmission line VL3 via the ninth pin of the accommodating connector 100. The standby voltage supplied to the third voltage transmission line VL3 is transmitted to the main board to control the peripheral device.

On the other hand, the ground power line (GND) is connected to the mains voltage source of the power supply device via the receiving connector regardless of the power-on mode and power-down mode of the personal computer. For this purpose, the ground power line GND is electrically connected to the third, fifth, seventh, thirteenth, and fifteenth to seventeenth pins of the accommodating connector 100. The first signal transmission line SL1 is electrically connected to the power supply device via the eighth pin of the accommodating connector 100 to transmit a power OK signal from the power supply device to the main board. The power OK signal is a specific logic state (for example, a low logic state or a low logic state) during a period in which the DC voltages to be supplied to the first to eighth voltage transmission lines VL1 to VL8 maintain the threshold voltage level or more. Will have By the power OK signal, the main board recognizes that the power supply is normal. The second signal transmission line SL2 is also electrically connected to the power supply device via the fourteenth pin of the accommodating connector 100 to transmit a power-on signal from the power supply device to the main board. The power-on signal has a specific logic state (eg, a low logic state or a high logic state) during a period in which a corresponding supply voltage is supplied to each of the first to eighth voltage transmission lines VL1 to VL8. By this power-on, the motherboard recognizes that the supply voltages are normally supplied and informs the user of the recognized result.

The first to third capacitors C1 to C3 connected in parallel between the first voltage supply line VL1 and the base power supply line GND are included in the high frequency component included in the first supply voltage on the first voltage transmission line VL1. Noise is removed, and the fourth and fifth capacitors C4 and C5 connected in parallel between the second voltage transmission line VL2 and the base power supply line GND are supplied with a second supply on the second voltage supply line VL2. It removes noise of high frequency components included in voltage. The sixth capacitor C6 connected between the first signal transmission line SL1 and the ground power line GND removes noise of a high frequency component included in the power OK signal on the first signal transmission line SL1. 3 The seventh capacitor C7 connected between the voltage transmission line VL3 and the base power supply line GND, and the eighth capacitor C8 connected between the fourth voltage transmission line VL4 and the base power supply line GND. Each of the noises of the high frequency components included in the standby voltage on the third voltage transmission line VL3 and the third supply voltage on the fourth voltage transmission line VL4 is removed. The ninth and tenth capacitors C9 to C10 connected in parallel between the sixth voltage transmission line VL6 and the base power supply line GND are included in the fourth supply voltage on the sixth voltage transmission line VL6. The high frequency component included in the power-on signal on the second signal transmission line SL2 removes noise of the second signal transmission line SL2 and the eleventh capacitor C11 connected between the base power line GND. Remove the noise of The twelfth capacitor C12 connected between the seventh voltage transmission line VL7 and the base power line GND removes noise of high frequency components included in the fifth supply voltage on the seventh voltage transmission line VL7. The thirteenth and fourteenth capacitors C13 and C14 connected in parallel between the eighth voltage transmission line VL8 and the base power supply line GND are included in the second supply voltage on the eighth voltage transmission line VL8. Remove the noise of Finally, the first resistor R1 connected between the second voltage transmission line VL2 and the first signal transmission line SL1 determines the level difference between the logic states of the power OK signal on the first signal transmission line SL1. Perform a function to make it louder (ie, pull-up).

The power connection device of such a personal computer may leave a residual of electrical characteristics on the main board when a power supply from outside (ie, a commercial AC power supply) is suddenly interrupted or an abnormal voltage is supplied from the power supply. The remnants of the electrical characteristics on the motherboard have passed on to users of information terminal devices, such as personal computers, the hassle of detaching a commercial AC power cord or a power cable of a power supply or requesting repair of a fault. In addition, the remnants of the electrical characteristics on the motherboard not only caused unnecessary replacement of normal components but also caused unnecessary expense.

Accordingly, an object of the present invention is to provide an abnormal power recovery device suitable for recovering the power-free state of the information terminal device to a normal voltage state.

1 is a circuit diagram showing a conventional power connection device.

2 is a circuit diagram of a power connection device including an abnormal power recovery device according to an embodiment of the present invention.

3 is a detailed view showing the configuration of the discharge circuit portion shown in FIG. 2 in detail.

4 is a detailed structural diagram showing the configuration of the switch shown in FIG. 3 in detail.

<Description of the symbols for the main parts of the drawings>

100,200: accommodating connector 210: discharge circuit

300: storage type connection port 302: plug

304: switches 306A and 306B: first and second connection leads

400: contact base 400A: first conductive film

402: rotational contact 402A: second conductive film

C1 ~ C14: Capacitor R1: Resistance

In order to achieve the above object, according to an embodiment of the present invention, the abnormal power recovery apparatus includes: a discharge passage for discharging an electrical abnormal signal generated on a main board of an information terminal device receiving supply voltages for driving from a power supply device; And a switch for switching the discharge passage.

The switch includes a contact base; A first conductive film provided in a region corresponding to half of the contact base; A rotary contact pivotally mounted to the contact base; And a second conductive film provided in an area corresponding to half of the rotational contact so as to be in contact with the first conductive film.

Other objects and features of the present invention in addition to the above objects will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 to 4.

2 is a circuit diagram illustrating a power connection device including an abnormal power recovery device according to an embodiment of the present invention. Referring to FIG. 2, the power supply voltage connection device includes first and fourth capacitors C1 commonly connected to a storage connector 200 mounted on a main board of an information terminal device (not shown) and a base power line on the main board. To C4), and a resistor R1 provided on the main board.

The accommodating connector 200 is mounted on a main board of an information terminal device (not shown) to transmit the first to eighth voltage transmission lines VL1 to VL8, the base power line GND, and the first and second signals on the main board. It is electrically connected to the lines SL1 and SL2. In addition, the accommodating connector 200 accommodates a power supply plug (not shown) extending from a power supply device (not shown) to be electrically connected to the power supply device. When connected to a power supply, the accommodating connector 200 allows the ground power line (GND) on the motherboard to be connected to the ground voltage source of the power supply, and multiple power voltages from the power supply on the motherboard. The first to eighth voltage transmission lines VL1 to VL8 are supplied. In addition, the accommodating connector 200 allows power state signals from the power supply device to be supplied to the first and second signal transmission lines SL1 and SL2 on the main board. Examples of power supply voltages and power supply status signals supplied to the voltage transmission lines VL1 to VL8 and the signal transmission lines SL1 and SL2 on the main board via the receiving connector 200 are provided. The mode and power-down mode will be described.

When the personal computer is in the power-on mode (ie, when the personal computer is normally used by the user), the first voltage supply line VL1 is 3.3 V from the first and second pins of the receiving connector 200. The first supply voltage of the second to the main board, the second voltage transmission line (VL2) is a second supply voltage of 5V from the fourth and sixth pins of the receiving connector 200 toward the motherboard, the fourth The voltage transmission line VL4 transmits the third supply voltage of 12 V from the tenth pin toward the main board, respectively. Each of the fifth to seventh voltage transmission lines VL5 to VL7 also receives a first supply voltage of 3.3 V from the eleventh pin of the accommodating connector 200 and a fourth supply voltage of -12 V from the twelfth pin. And a fifth supply voltage of -5 V from the eighteenth pin to the motherboard. In addition, the eighth voltage transmission line VL8 transmits a second supply voltage of 5 V from the nineteenth and twentieth pins of the accommodating connector 200 toward the main board.

Alternatively, when the personal computer is in the power-down mode (ie, when the personal computer is not used by the user), the first, second and fourth voltage transmission lines VL1, VL2, and VL4 to VL8 are supplied to the personal computer. The voltage is not supplied, whereas the standby voltage of 5 V is supplied from the power supply device only to the third voltage transmission line VL3 via the ninth pin of the accommodating connector 200. The standby voltage supplied to the third voltage transmission line VL3 is transmitted to the main board to control the peripheral device.

On the other hand, the ground power line (GND) is connected to the mains voltage source of the power supply device via the receiving connector 200, regardless of the power-on mode and power-down mode of the personal computer. To this end, the ground power line GND is electrically connected to the third, fifth, seventh, thirteenth, and fifteenth to seventeenth pins of the accommodating connector 200. The first signal transmission line SL1 is electrically connected to the power supply device via the eighth pin of the accommodating connector 200 to transmit the power OK signal from the power supply device to the main board. The power OK signal is a specific logic state (for example, a low logic state or a low logic state) during a period in which the DC voltages to be supplied to the first to eighth voltage transmission lines VL1 to VL8 maintain the threshold voltage level or more. Will have By the power OK signal, the main board recognizes that the power supply is normal. The second signal transmission line SL2 is also electrically connected to the power supply device via the fourteenth pin of the accommodating connector 200 to transmit a power-on signal from the power supply device to the main board. The power-on signal has a specific logic state (eg, a low logic state or a high logic state) during a period in which a corresponding supply voltage is supplied to each of the first to eighth voltage transmission lines VL1 to VL8. By this power-on, the motherboard recognizes that the supply voltages are normally supplied and informs the user of the recognized result.

The first capacitor C1 connected between the first voltage supply line VL1 and the base power supply line GND removes noise of a high frequency component included in the first supply voltage on the first voltage transmission line VL1. The second capacitor C2 connected between the seventh voltage transmission line VL7 and the base power supply line GND removes noise of the high frequency component included in the fifth supply voltage on the seventh voltage supply line VL7. The third and fourth capacitors C3 and C4 connected in parallel between the eighth voltage transmission line VL8 and the base power supply line GND are included in the high frequency component included in the second supply voltage on the eighth voltage transmission line VL8. Remove the noise of Finally, the first resistor R1 connected between the second voltage transmission line VL2 and the first signal transmission line SL1 determines the level difference between the logic states of the power OK signal on the first signal transmission line SL1. Perform a function to make it louder (ie, pull-up). The first resistor R1 may be connected to any one of the other voltage transmission lines (that is, the first and third to eighth voltage transmission lines VL1 and VL3 to VL8) instead of the second voltage transmission line VL2.

In addition, the power connection device further includes a discharge circuit unit 210 electrically connected between the third voltage transmission line VL3 and the electromotive power line GND. The discharge circuit unit 210 electrically connects the third voltage transmission line VL3 to the ground power line GND when the discharge mode is designated by the user when an abnormal voltage condition is caused in an information terminal apparatus such as a personal computer. . When the third voltage transmission line VL3 is electrically connected to the ground power line GND, the residuals of electrical characteristics remaining on the main board of the information terminal device are stored in the third voltage transmission line VL3 and the discharge circuit unit 210. Is discharged toward the ground power line (GND) via (). As a result, the motherboard can be restored to its normal power state. When the connection between the third voltage transmission line VL3 and the ground power supply line GND is released by the discharge circuit unit 210, the main board of the information terminal device is connected to the first to eighth voltage supply lines VL1 to VL8. Normal response to the supply voltages will occur. Therefore, it is possible to eliminate the trouble of allowing the user or a failure / repair of the power supply cable of a commercial AC power cord or a power supply device to be detached, and further, to prevent unnecessary replacement of normal circuit components and unnecessary consumption of costs.

FIG. 3 is a detailed circuit diagram of the discharge circuit unit 210 shown in FIG. Referring to FIG. 2, the discharge circuit unit 210 includes an accommodating connector 300 to be electrically connected between the third voltage transmission line VL3 and the base power supply line GND of FIG. 2, which is an accommodating connector 300. A plug 302 to be received therein, and first and second connection leads 306A and 306B for electrically connecting the switch 304 to the plug 302.

The plug 302 accommodated in the accommodating connector 300 allows the first connection wire 306A to be electrically connected to the third voltage transmission line VL3 of FIG. 2 via the accommodating connector 300. In addition, the second connection wire 306B is electrically connected to the base power supply line GND of FIG. 2 via the receiving connector 300.

When the discharge mode is designated by a user's operation, the switch 304 electrically connects the first connection lead 306A and the second connection lead 306B to the third voltage transmission line VL3 of FIG. The power lines GND are electrically connected to each other. At this time, the remnants of the electrical characteristics remaining on the main board toward the electromotive power line GND via the third transmission line, the first connection lead 306A, the switch 304 and the second connection lead 306B. Will be discharged. As a result, the main board of the information terminal apparatus can be restored to the normal voltage state.

FIG. 4 is a detailed view showing the configuration of the switch of FIG. 3 in detail. FIG. In FIG. 4, the switch 304 has a circular contact 402 which is rotatably (or pivoted) in the center of the contact base 400.

The first conductive film 400A is formed at the right half of the contact base 400. The first conductive film 400 is electrically connected to the first connection wire 306A of FIG. 3. The rotary contact 402 is rotated or swiveled by a user's operation of an information terminal device such as a personal computer. In the rotary connector 402, a second conductive film 402A is formed at the left half of the surface facing the first conductive film 400A or at the edge of the left half. The second conductive film 402A is electrically connected to the second connecting wire 306B of FIG. 3. In addition, the second conductive film 402A is in contact with the first conductive film 400A (that is, the discharge mode is designated) as the rotating contactor rotates or rotates by a user's manipulation, thereby at least a certain period of time. The third voltage transmission line VL3 and the ground power line GND are electrically connected to each other. Therefore, the residual of the electrical characteristics remaining on the main board is the third transmission line, the first connection lead 306A, the first conductive film 400A and the second conductive film 402A, and the second connection lead 306B. Through the discharge to the electromotive power line (GND). As a result, the main board of the information terminal apparatus can be restored to the normal voltage state.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

As described above, in the abnormal power recovery apparatus according to the present invention, when the abnormal voltage condition of the information terminal apparatus occurs, the residual of the electrical characteristics on the main board of the information terminal apparatus is discharged by the user's selection so that the information terminal apparatus supplies the abnormal power supply. State to return to normal voltage. Accordingly, the abnormal power recovery apparatus according to the present invention can eliminate the trouble of causing the user or the failure / repair of the information terminal device to detach the commercial AC power cord or the power cable of the power supply device. Furthermore, the abnormal power supply recovery apparatus according to the present invention can prevent unnecessary replacement of normal circuit components and unnecessary consumption of costs.

Claims (2)

An information terminal device having a main board supplied with supply voltages for driving from a power supply device, A discharge passage for discharging an electrical abnormal signal generated from the main board; And Abnormal power recovery device characterized in that it comprises a switch for switching the discharge passage. The method of claim 1 wherein: The switch comprises a contact base; A first conductive film provided in a region corresponding to half of the contact base; A rotary contact pivotally mounted to said contact base; And And a second conductive film provided in an area corresponding to half of the rotational contact so as to be in contact with the first conductive film.