TW201543204A - Electronic device - Google Patents

Abstract

An electronic device includes a power source module, a capacitor module, a first switch module, a second switch module and a controlling module. The power source module is connected to the capacitor module for charging the capacitor module. The power source module and the capacitor module can both supply power to the electronic device. The capacitor module is connected to the first switch module. When the power source module does not output any power signal, the first switch module is in a first state, thereby allowing the capacitor module to supply power to the electronic device. When the power source module outputs a power signal, the first switch module is in a second state, thereby preventing the capacitor module from supplying power to the electronic device. The second switch module is connected to the capacitor module. When the power source module does not output any power signal, the capacitor module outputs a first signal. The controlling module reports to users that the power source module is powered off when the first signal is detected by the controlling module.

Description

Electronic device

The invention relates to an electronic device, in particular to an electronic device capable of performing power-off protection.

With the rapid development of information technology, electronic devices such as computers have been widely used. The electronic device of the conventional electronic device is generally powered by an alternating current power source. When the alternating current power supply is suddenly powered off, the electronic device often cannot store the program or data in operation in time, which not only causes loss of data, but also damages the electronic device in severe cases. body.

In addition, some electronic devices are powered by batteries, and in general, the batteries are detachably mounted in the electronic device. During the operation of the electronic device, the battery may be loosened from the electronic device due to external factors such as collision of the electronic device, thereby causing a momentary power failure of the electronic device, thereby causing loss of data in the electronic device or damage to the electronic device hardware. .

In view of the above, it is necessary to provide an electronic device capable of powering down protection.

An electronic device includes a power module and a capacitor module, wherein a power output end of the power module is connected to a power input end of the capacitor module to charge the capacitor module, and the power module and the capacitor module can Powering the electronic device, the electronic device further includes a first switch module, a second switch module, and a control module, wherein the capacitor module is connected to the first switch module, and the first switch mode The first switch module is in a first state when the power module outputs no power signal to allow the capacitor module to supply power to the electronic device, and the first switch module is in a state when the power module outputs a power signal a second state, so that the capacitor module cannot supply power to the electronic device; and the second switch module is connected to the capacitor module to control the capacitor module when the power module outputs no power signal Sending a first signal to the outside, the control module controls the electronic device to report to the user that the power module is powered off when the first signal is detected.

Compared with the prior art, in the above electronic device system, when the power module is powered off, the capacitor module supplies power to the electronic device to realize power-off protection of the electronic device by the power-off delay. At the same time, the control module controls the electronic device to report the power-off information of the power module to the user, which can remind the user to re-energize the power module as soon as possible within the time of the power-off protection.

1 is a block diagram of a preferred embodiment of an electronic device of the present invention.

2 is a block diagram of a control module of the electronic device of FIG. 1.

3 is a circuit diagram of an electronic device of the present invention.

Referring to FIG. 1 , an electronic device 100 includes a power module 10 , a charging and discharging circuit 20 , a capacitor module 30 , a first switch module 40 , a second switch module 50 , and a power receiving unit. 60 and control module 70. The power module 10 is connected to the capacitor module 30 by the charging and discharging circuit 20, so that the capacitor module 30 can be charged. The power module 10 and the capacitor module 30 are respectively connected to the power receiving unit 60, so that the power receiving unit 60 can supply power to the electronic device 100. In an embodiment, the power receiving unit 60 includes a voltage conversion circuit, and the capacitor module 30 includes at least one super capacitor.

Referring to FIG. 1 and FIG. 3 , the power output end of the power module 10 is connected to the power input end of the capacitor module 30 by the charging and discharging circuit 20 , and the power signal outputted by the power module 10 is borrowed. The capacitor module 30 is charged by the charge and discharge circuit 20. The power output terminals of the power module 10 and the capacitor module 30 are respectively connected to the power receiving unit 60, and can respectively output power signals to the power receiving unit 60, so that the power receiving unit 60 is the electronic device 100. powered by. The capacitor module 30 is connected to the first switch module 40. The first switch module 40 is connected to the power module 10 and can be in a state when the power module 10 has no power signal output. The first state is in a second state different from the first state when the power module 10 has a power signal output. When the power module 10 is in the first state, the first switch module 40 allows the capacitor module 30 to supply power to the electronic device 100 by the power receiving unit 60; when the capacitor module When the second switch module 30 is in the second state, the first switch module 40 prevents the capacitor module 30 from supplying power to the electronic device 100 by the power receiving unit 60.

In one embodiment, the first switch module 40 includes a first triode Q1. The base of the first triode Q1 is connected to the power output end of the power module 10, and the collector is grounded. The emitter is connected to the power output of the capacitor module 30. When the power module 10 has a power signal output, the first triode Q1 is turned on. At this time, the power output terminal of the capacitor module 30 is grounded by the first switch module 40, so that the power receiving unit 60 cannot supply power to the electronic device 100. When the power module 10 has no power signal output, the first triode Q1 is turned off. At this time, the power output terminal of the capacitor module 30 can supply power to the electronic device 100 by the power receiving unit 60. The first triode Q1 is an NPN type triode.

The capacitor module 30 is provided with a signal end for transmitting a signal, and the second switch module 50 is connected to the signal end. The second switch module 50 is further connected to the power output end of the power module 10, and when the power module 10 has no power signal output, the second switch module 50 controls the signal end to the outside. A first signal is output. When the power module 10 has a power signal output, the second switch module 50 controls the signal terminal to output a second signal different from the first signal.

In an embodiment, the second switch module 50 includes a second triode Q2. The base of the second triode Q2 is connected to the power output end of the power module 10, and the collector is grounded. The emitter is connected to the signal end. When the power module 10 has a power signal output, the second transistor Q2 is turned on, and the signal terminal is grounded by the second transistor Q2 to output a low level signal. When the power module 10 has no power signal output, the second transistor Q2 is turned off, and the signal terminal outputs a high level signal. The second triode Q2 is an NPN type triode.

Referring to FIG. 2-3, the control module 70 includes a south bridge wafer 71. The south bridge wafer 71 is connected to the signal end of the capacitor module 30 to receive the first signal or the second signal. The south bridge wafer 71 includes a register 711 for storing the first signal or the second signal. The GPIO pin (general input/output terminal) of the south bridge chip 71 is connected to the signal terminal to receive the first signal or the second signal output by the capacitor module 30. The south bridge wafer 71 can automatically store signals received from the GPIO pins into the register 711. The power receiving unit 60 is connected to the Vcc1 pin (power input terminal) of the south bridge chip 71. The power module 10 and the capacitor module 30 can supply power to the control module 70 by the power receiving unit 60. The GND pin of the south bridge wafer 71 is grounded. In one embodiment, the south bridge wafer 71 is a PCH (Platform Controller Hub) wafer.

The control module 70 further includes a control unit 72, and the control unit 72 can instantly read the stored value of the register 711 to obtain the first signal or the second signal output by the signal end, and according to the The first signal or the second signal determines whether the power module 10 has a power signal output. When the control unit 72 detects the second signal, it is determined that the power module 10 has a power signal output. When the control unit 72 detects the first signal, it determines that the power module 10 has no power signal output. At this time, the control unit 72 controls the electronic device 100 to report to the user that the power module 10 is powered off, and controls the electronic device 100 to enter a sleep state. By controlling the electronic device 100 to enter a sleep state, the power consumption of the electronic device 100 can be reduced, the turn-on time of the electronic device 100 can be extended, and the user can re-energize the power module 10 to obtain time.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Electronic devices

10‧‧‧Power Module

20‧‧‧Charge and discharge circuit

30‧‧‧Capacitor Module

40‧‧‧First switch module

50‧‧‧Second switch module

60‧‧‧Power receiving unit

70‧‧‧Control Module

71‧‧‧South Bridge Chip

711‧‧‧ register

72‧‧‧Control unit

Q1‧‧‧First Triode

Q2‧‧‧Secondary

no

10‧‧‧Power Module

20‧‧‧Charge and discharge circuit

30‧‧‧Capacitor Module

40‧‧‧First switch module

50‧‧‧Second switch module

60‧‧‧Power receiving unit

71‧‧‧South Bridge Chip

Q1‧‧‧First Triode

Q2‧‧‧Secondary

Claims (10)

An electronic device includes a power module and a capacitor module, wherein a power output end of the power module is connected to a power input end of the capacitor module to charge the capacitor module, and the power module and the capacitor module can Powering the electronic device, the electronic device further includes a first switch module, a second switch module, and a control module, wherein the capacitor module is connected to the first switch module, and the first switch mode The first switch module is in a first state when the power module outputs no power signal to allow the capacitor module to supply power to the electronic device, and the first switch module is in a state when the power module outputs a power signal a second state, so that the capacitor module cannot supply power to the electronic device; and the second switch module is connected to the capacitor module to control the capacitor module when the power module outputs no power signal Sending a first signal to the outside, the control module controls the electronic device to report to the user that the power module is powered off when the first signal is detected. The electronic device of claim 1, wherein the first switch module comprises a first three-pole body, and a base of the first three-pole body is connected to a power output end of the power module. The collector is grounded, and the emitter is connected to the power output of the capacitor module. The electronic device of claim 2, wherein when the power module has a power signal output, the first triode is turned on, and the power output end of the capacitor module is by the first The triode is grounded to supply power to the electronic device; when the power module has no power signal output, the first triode is turned off, and the power output end of the capacitor module can supply power to the electronic device . The electronic device of claim 1, wherein the capacitor module is provided with a signal end for transmitting a signal, and the second switch module is connected to the signal end; the second switch mode The group is further connected to the power module, and when the power module has a power signal output, the second switch module controls the signal terminal to output a second signal different from the first signal; When the power module outputs no power signal, the second switch module controls the signal terminal to output the first signal to the outside. The electronic device of claim 4, wherein the second switch module comprises a second triode, and a base of the second triode is connected to a power output end of the power module. The collector is grounded and the emitter is connected to the signal end. The electronic device of claim 5, wherein when the power module has a power signal output, the second triode is turned on, and the signal terminal is grounded by the second triode Outputting a low level signal outward; when the power module has no power signal output, the second triode is turned off, and the signal end outputs a high level signal. The electronic device of claim 4, wherein the control module comprises a south bridge wafer, the south bridge wafer is connected to the signal terminal to receive the first signal or the second signal, and the south bridge wafer comprises a register for storing the first signal or the second signal. The electronic device of claim 7, wherein the control module further comprises a control unit, wherein the control unit can immediately read the stored value of the register to obtain the output of the capacitor module. The first signal or the second signal, and controlling the electronic device according to the first signal or the second signal. The electronic device of claim 1, wherein when the control module detects the first signal, the electronic device can be controlled to enter a sleep state. The electronic device of claim 1, wherein the electronic device further includes a power receiving unit, wherein a power output end of the power module and a power output end of the capacitor module are respectively connected to the power receiving unit, The power receiving unit is connected to the control module, and the power module and the capacitor module supply power to the electronic device and the control module by the power receiving unit.