TWI418973B - Overall reset circuit, computer system with overall reset circuit and overall reset method thereof - Google Patents

Description

Overall reset circuit, computer system with overall reset circuit and overall reset method thereof

The present invention relates to an overall reset circuit, a computer system having an overall reset circuit, and a method for overall resetting thereof, in particular, a software or firmware controlled overall reset circuit, a computer system having an overall reset circuit, and The overall method of resetting.

With the development of technology, computer systems have become an indispensable device for ordinary people in their daily lives. When the user operates certain special functions on the computer system, it is sometimes necessary to remove the input of the power signal to power off the entire computer system. In this way, the user can perform special operations or settings on the computer system. The above process is the process of Global Reset.

In the prior art, in order to perform the overall reset process of the computer system, it is necessary to manually remove the power input cable or adjust the switch behind the power supply of the computer system to power off the entire computer system. However, for the computer system of the prior art, the user must move the casing of the computer system or the cable that needs to find the correct power input from the complicated circuit to perform the overall reset. Therefore, it is inconvenient for the user, and the computer system may also cause damage to the computer system.

In view of this, there is a need to invent an overall reset circuit and have this The computer system of the circuit to solve the lack of prior art.

The main object of the present invention is to provide an overall reset circuit that can utilize the circuit layout to achieve the overall reset effect of the computer system.

Another primary object of the present invention is to provide a computer system having an overall reset circuit.

Yet another primary object of the present invention is to provide a method for overall resetting of a computer system

To achieve the above objects, the overall reset circuit of the present invention is used in a computer system. The computer system has a motherboard, a power input device, and a control signal generating module. The overall reset circuit includes a first switch module, a second switch module, and a capacitor. The power input device inputs a power signal to the first switch module to output a system power signal to the motherboard. The second switch module is electrically connected to the first switch module. The capacitor is electrically connected to the first switch module and the second switch module. The motherboard is configured to input a system power signal to the second switch module. The control signal generating module inputs the control signal to the second switch module to control the second switch module to charge the capacitor by using the system power signal. After the capacitor is charged, the high-potential signal is outputted to the first switch module to cut off the system power signal outputted by the first switch module to the motherboard and the second switch module. After the second switch module is cut off from the system power signal, the capacitor system discharges, and then outputs a low potential signal to the first switch module to control the first switch module to restore the output system power signal.

The computer system with the overall reset circuit of the present invention comprises a motherboard, an overall reset circuit, a power supply device and a control signal generating module. The overall reset circuit is set on the motherboard. The overall reset circuit includes a switching control module and a reply control module. The recovery control module is electrically connected to the switching control module. The power supply device is electrically connected to the switching control module for providing a power signal for outputting the system power signal to the motherboard and the recovery control module via the switching control module. The control signal generating module is electrically connected to the reply control module for generating a control signal to the reply control module for controlling the switching control module to cut off the system power signal outputted to the motherboard and the control module. After the control module is disconnected from the system power signal, the automatic control switching control module is re-conducted to restore the transmission of the system power signal.

The method for overall resetting of the present invention comprises the steps of: inputting a power signal to a switching control module to generate a system power signal to a reply control module; inputting a control signal to a reply control module; and controlling the switching control module to cut off the system power signal After the transmission of the system power signal, the automatic control switching control module restores the transmission of the system power signal.

The above and other objects, features and advantages of the present invention will become more <

Please refer to FIG. 1 for the architecture diagram of the computer system with the overall reset circuit of the present invention.

The computer system 1 of the present invention has the function of Global Reset, which can provide a way for the user to control by software or firmware. The input of the power signal is completely removed by the circuit layout in the computer system 1. The overall reset is not required by the user operating the hardware, such as removing the cable from the power input.

The computer system 1 of the present invention includes an overall reset circuit 10, a motherboard 20, a power supply device 30, and a control signal generating module 40. The overall reset circuit 10 is disposed on the motherboard 20, and the overall reset circuit 10 is electrically connected to the control signal generating module 40.

The power supply device 30 is configured to provide a power signal to provide system power signals to the components on the motherboard 20 via the overall reset circuit 10. The power supply device 30 can be an external power supply or a battery of the computer system 1, but the invention is not limited thereto. The power signal is the standby power signal supplied by the power supply device 30 when the computer system 1 is turned off; and the system power signal is the standby power signal received by the motherboard 20 when the computer system 1 is turned off. Let computer system 1 boot up smoothly. In an embodiment of the invention, the power signal and the system power signal are all 5 volt voltage signals, but the invention is not limited thereto.

The control signal generating module 40 is configured to issue a control signal to determine whether the overall reset circuit 10 is to cut off the output of the system power signal. The control signal generating module 40 can be a basic input/output system (BIOS) controlled by a firmware or a programmable module using a software architecture, but the invention is not limited thereto. The user can request the control signal generating module 40 to send a control signal by means of a keyboard control software, an operating system or a firmware option.

The overall reset circuit 10 can cut off the supply of the system power signal and resume the transmission of the system power signal after a period of time. Overall reset circuit 10 The switching control module 11 and the reply control module 12 are included. The switching control module 11 can be regarded as a switch, and is electrically connected to the power supply device 30, so that the power supply device 30 must output the system power signal supplied to the computer system 1 via the switching control module 11. The system power signal is supplied to the motherboard 20 and to the reply control module 12. The reply control module 12 is electrically connected to the control signal generating module 40 and the switching control module 11 at the same time. The control signal generated by the control signal generating module 40 controls the switching control module 11 to interrupt the transmission of the system power signal by the reply control module 12. After the recovery control module 12 is turned off the system power signal for a period of time, the internal circuit can automatically control the switching control module 11 to restore the transmission system power signal. In this way, the motherboard 20 can re-receive the system power signal for the standby, and the computer system 1 can complete the overall reset process.

Next, please refer to FIG. 2 for a circuit diagram of the overall reset circuit of the present invention. It should be noted here that although the electronic components and circuit layouts shown in FIG. 2 are taken as an example, the overall reset circuit 10 of the present invention is not limited to only the electronic components shown in FIG. 2 and Its circuit layout is composed.

The switching control module 11 of the overall reset circuit 10 includes a first switch module Q1. In this embodiment, the first switch module Q1 is a metal oxide half field effect transistor (MOSFET), but the present invention does not limit. The first switch module Q1 has a source S, a drain D, and a gate G. The power supply device 30 is electrically connected to the source S of the first switch module Q1, and the drain D of the first switch module Q1 is electrically connected to the motherboard 20 to output a system power supply for the motherboard 20 to stand by. Signal. The gate G is used to control whether the source S and the drain D are turned on.

The recovery control module 12 includes a second switch module Q2 and a plurality of capacitors C1, C2 and a plurality of resistors R1, R2, part of which is used to adjust the stability of the circuit. Since it is not the focus of the present invention, its function will not be described herein. In the embodiment, the second switch module Q2 is a double carrier junction transistor (BJT), but the invention is not limited thereto. The second switch module Q2 has a collector E, an emitter C and a base B. The base B is electrically connected to the control signal generating module 40, and the potential of the collector can be changed by the control signal to determine whether the collector E and the emitter C are turned on. The emitter C is electrically connected to the motherboard 20 to receive the system power signal transmitted via the motherboard 20. The collector E is electrically connected to the capacitor C1 and the gate G of the first switching module Q1 to control the potential of the gate G by the charge and discharge of the capacitor C1. In this way, it can be determined whether the first switch module Q1 outputs a system power signal for the motherboard 20 to stand by.

Next, please refer to FIG. 3 for a flow chart of the steps of the method for overall resetting of the present invention. It should be noted that the following describes the overall resetting method of the present invention by taking the electronic components and circuit layout shown in FIG. 2 as an example. However, the present invention is not limited to the use of the electronic components shown in FIG. The circuit layout is to achieve a method of overall resetting of the present invention.

The method for overall resetting of the present invention first performs step 301: inputting a power signal to the switching control module to generate a system power signal to the reply control module.

First, the power supply device 30 inputs a power signal to the source S of the first switch module Q1. The gate G of the first switching module Q1 is grounded via the resistor R1. Therefore, in the initial state, the gate G is at a low potential, and the source S and the drain D are turned on. Therefore, when the power supply device 30 inputs the power signal to the source S, the drain D system outputs the system power signal to the motherboard 20 As a standby power supply for the motherboard. At this time, the base B of the second switch module Q2 is at a high potential, so the second switch module Q2 does not operate.

Next, proceed to step 302: input a control signal to the second switch module of the reply control module.

When the user wants to perform the overall reset process of the computer system 1, the control signal generating module 40 inputs the control signal to the second switch module Q2 of the reply control module 12 before the computer system 1 is turned off. The user can request the control signal generating module 40 to send a control signal by using a keyboard control software, an operating system or a firmware option, but the present invention is not limited to the above method.

The control signal can control the second switch module Q2 to perform step 303: controlling the second switch module to charge the capacitor by using the system power signal.

After the control signal generating module 40 transmits the control signal to the reply control module 12, the base B of the second switch module Q2 is pulled to a low potential by the control signal, so that the collector E and the emitter C are turned on, and at the same time The system power signal is transmitted to capacitor C1. In this way, the capacitor C1 can start charging by using the system power signal.

Then proceed to step 304: control the switching control module to cut off the transmission of the system power signal.

After the capacitor C1 is charged to a high potential, the gate G of the first switching module Q1 also reaches a high potential, and the source S and the drain D are turned off. In this way, the switching control module 11 can be controlled to cut off the input of the power signal, so that the motherboard 20 cannot receive the system power signal and completely loses power.

After the system power signal is cut off, the second switch module Q2 of the recovery control module 12 immediately proceeds to step 305: automatically controlling the capacitor to discharge.

After the source S and the drain D of the first switch module Q1 are cut off and turned on, the system power signal cannot be transmitted to the motherboard 20, so the second switch module Q2 cannot receive the system power signal. In this case, since the capacitor C1 can no longer receive the input of the system power signal, the resistor R1 is slowly discharged to a low potential.

Finally, step 306 is executed to control the switching control module to resume the output system power signal.

When the capacitor C1 falls to a low potential, the gate G also drops to a low potential at the same time, so that the source S and the drain D are turned on. Therefore, the first switch module Q1 can retransmit the system power signal to the motherboard 20.

At this time, the base B of the second switch module Q2 is the same as step 301, and returns to a high potential. Therefore, after the system power signal is retransmitted, the second switch module Q2 is not turned on, so the capacitor C1 is not charged again.

In this way, the motherboard 20 can re-receive the system power signal for the standby, and the computer system 1 can complete the overall reset process.

It is to be noted that the method of the overall resetting of the present invention is not limited to the order of the above steps, and the order of the above steps may be changed as long as the object of the present invention can be achieved.

With the above method and circuit, the user can conveniently reset the computer system 1 as a whole, which can solve the lack of the prior art.

In summary, the present invention, regardless of its purpose, means, and efficacy, is intrinsically distinguished from the characteristics of the prior art, and is requested to be reviewed by the review committee. As soon as the patents were granted, the company was in a good position. It should be noted that the various embodiments described above are merely illustrative for ease of explanation, and the scope of the invention is intended to be limited by the scope of the claims.

1‧‧‧ computer system

10‧‧‧Overtalation reset circuit

11‧‧‧Switching control module

12‧‧‧Response control module

20‧‧‧ motherboard

30‧‧‧Power supply unit

40‧‧‧Control signal generation module

Q1‧‧‧First switch module

S‧‧‧ source

D‧‧‧汲

G‧‧‧ gate

Q2‧‧‧Second switch module

E‧‧‧集极

C‧‧‧射极

B‧‧‧ base

C1, C2‧‧‧ capacitor

R1, R2, R3‧‧‧ resistance

1 is a block diagram of a computer system having an overall reset circuit of the present invention.

2 is a circuit diagram of the overall reset circuit of the present invention.

3 is a flow chart showing the steps of the method of overall resetting of the present invention.

1‧‧‧ computer system

10‧‧‧Overtalation reset circuit

11‧‧‧Switching control module

12‧‧‧Response control module

20‧‧‧ motherboard

30‧‧‧Power supply unit

40‧‧‧Control signal generation module

Claims (7)

An overall reset circuit is used for a computer system having a motherboard, a power input device and a control signal generating module, the overall reset circuit comprising: a first switch module, the power input The device inputs a power signal to the first switch module to output a system power signal to the motherboard; a second switch module is electrically connected to the first switch module; and a capacitor The first switch module and the second switch module are electrically connected; wherein the motherboard inputs the system power signal to the second switch module, and the second switch module is input by the control signal generating module Controlling the signal to control the second switch module to charge the capacitor by using the power signal of the system; after charging, the capacitor outputs a high-potential signal to the first switch module to cut off the first switch module Outputting the system power signal to the motherboard and the second switch module; after the second switch module is cut off from the system power signal input from the motherboard, the capacitor is automatically controlled to discharge Capacitance signal and then outputs a low voltage to the first switch circuit, a first switching module to control the recovery of the system power output signal. The overall reset circuit of claim 1, wherein the second switch module inputs the control signal by a basic input/output system. The overall reset circuit of claim 1, wherein the second switch module inputs the control signal by a programmable module. A computer system having an overall reset circuit, comprising: a motherboard; An overall reset circuit is disposed on the motherboard, the overall reset circuit includes: a switch control module, wherein the switch control module has a first switch module; and a return control module The switching control module is electrically connected, and the recovery control module includes: a second switch module electrically connected to the first switch module; and a capacitor connected to the first switch module and the first The two switch modules are electrically connected; a power supply device is electrically connected to the switch control module for providing a power signal to the first switch module to output a system power signal via the switch control module And the control signal generating module is electrically connected to the recovery control module for generating a control signal to the recovery control module The second switch module controls the second switch module to charge the capacitor by the power signal of the system; after charging, the capacitor outputs a high-potential signal to the first switch module, so that the switch control mode Group cut Outputting the system power signal to the motherboard and the recovery control module; after the recovery control module is cut off from the system power signal input from the motherboard, the capacitor is automatically controlled to discharge, and the capacitor is output again A low potential signal is sent to the first switch module to control the switching control module to be turned back on to restore the transmission of the system power signal. A computer system having an overall reset circuit as described in claim 4, wherein the control signal generating module is a basic input/output system. A computer system having an overall reset circuit as described in claim 4, wherein the control signal generating module is a programmable module. A method for overall resetting is applied to a computer system having an overall reset circuit, the method comprising the steps of: inputting a power signal to a switching control module to generate a system power signal to a reply control module; The switching control module has a first switching module; the recovery control module has a capacitor and a second switching module; and a control signal is input to the second switching module of the recovery control module to control the The second switch module charges the capacitor by using the system power signal; and the capacitor outputs a high potential signal to the first switch module to control the switching control module to cut off transmission of the system power signal; After the second switch module is cut off from the system power signal input from the motherboard, the capacitor is automatically controlled to discharge, so that the capacitor outputs a low potential signal to the first switch module to control the switch. The control module restores the transmission of the system power signal.