CN111625076A - Peripheral power-off restart control circuit and computer - Google Patents
Peripheral power-off restart control circuit and computer Download PDFInfo
- Publication number
- CN111625076A CN111625076A CN202010294269.0A CN202010294269A CN111625076A CN 111625076 A CN111625076 A CN 111625076A CN 202010294269 A CN202010294269 A CN 202010294269A CN 111625076 A CN111625076 A CN 111625076A
- Authority
- CN
- China
- Prior art keywords
- switch
- switch module
- power supply
- module
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1441—Resetting or repowering
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
Abstract
The invention discloses a peripheral power-off restart control circuit which comprises a control module, a first switch module and a second switch module, wherein a control signal end of the control module is connected with a signal input end of the first switch module, a signal output end of the first switch module is connected with a power-on control end of the second switch module, an input end of the second switch module is connected with a first power supply, and an output end of the second switch module is a peripheral power supply end and used for supplying power to external equipment; when the first switch module receives the first level output by the control module, the first switch module outputs the first level to the second switch module to disconnect the second switch module, and no voltage is output from the external power supply terminal; when the first switch module receives the second level output by the control module, the second switch module outputs the second level to the second switch module, so that the second switch module is conducted, and the peripheral power supply end outputs voltage. The invention also discloses a computer. The invention greatly shortens the time spent in the power-off and restarting of the external equipment and reduces the cost loss of users.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to a peripheral power-off restart control circuit and a computer.
Background
With the development of science and technology, computers have been applied to various scenes in life and work, and the computers are equipped with different external equipment to form systems for use in different scenes, for example, a printing shop uses the computer to connect a printer for printing, a camera is used in a camera house for shooting, a supermarket or a shopping mall uses the computer to connect a cash register for cash collection, and the like. However, in some application scenarios, when the external device is abnormal in operation and needs to be powered off and restarted to eliminate the abnormality, the external device can be powered off and restarted only by restarting the computer to recover the normal operation; after the computer is restarted, various software programs need to be registered again, the process consumes too long time, and the loss caused to the user is large.
Disclosure of Invention
The invention mainly aims to provide a peripheral power-off restart control circuit and a computer, and aims to improve the power-off restart efficiency of peripheral equipment in each application occasion and reduce the cost loss of a user.
In order to achieve the above object, the peripheral power-off restart control circuit of a computer provided by the present invention comprises a control module, a first switch module and a second switch module, wherein a control signal end of the control module is connected to a signal input end of the first switch module, a signal output end of the first switch module is connected to a power-on control end of the second switch module, an input end of the second switch module is connected to a first power supply, and an output end of the second switch module is a peripheral power supply end for supplying power to an external device; when the first switch module receives a first level output by a control signal end of the control module, a signal output end of the first switch module outputs the first level to an on-off control end of the second switch module, so that the second switch module is switched off, and no voltage is output from the external power supply end; when the first switch module receives a second level output by a control signal end of the control module, a signal output end of the first switch module outputs the second level to an on-off control end of the second switch module, so that the second switch module is switched on, and the peripheral power supply end outputs voltage; the first level is opposite in potential to the second level.
Preferably, the first switch module includes a first switch tube, a second switch tube, a first resistor, a second resistor, and a third resistor, where the first level is a low level and the second level is a high level; the trigger end of the first switch tube is a signal input end of the first switch module, the trigger end of the first switch tube is connected with the first power supply through the first resistor, the first conducting end of the first switch tube is connected with the first power supply through the second resistor, and the second conducting end of the first switch tube is grounded; the trigger end of the second switch tube is connected with the first conducting end of the first switch tube, the first conducting end of the second switch tube is the signal output end of the first switch module, the first conducting end of the second switch tube is connected with the third resistor to connect the second power supply, and the second conducting end of the second switch tube is grounded.
Preferably, the second switch module includes a third switch tube, a trigger end of the third switch tube is an on-off control end of the second switch module, a first conduction end of the third switch tube is connected to the first power supply, and a second conduction end of the third switch tube is the external power supply end.
Preferably, the first switch module further includes a first capacitor, one end of the first capacitor is connected to the trigger end of the first switch tube, and the other end of the first capacitor is grounded; the second switch module further comprises a second capacitor, a third capacitor and a fourth capacitor, and a second conduction end of the third switch tube is grounded through the second capacitor, the third capacitor and the fourth capacitor respectively.
Preferably, first switch tube is first NMOS pipe, the second switch tube is the second NMOS pipe, the third switch tube is the third NMOS pipe, the trigger end, first switch-on end and the second of first switch tube switch on the end and correspond in proper order and do the grid, drain electrode and the source electrode of first NMOS pipe, the trigger end, first switch-on end and the second of second switch tube switch on the end and correspond in proper order and do the grid, drain electrode and the source electrode of second NMOS pipe, the trigger end, first switch-on end and the second of third switch tube switch on the end and correspond in proper order and do the grid, drain electrode and the source electrode of third NMOS pipe.
Preferably, the first power supply is powered on both the power-on and power-off states of the computer; the second power supply is powered on in the computer startup state and is powered off in the computer shutdown state.
The invention also provides a computer, which comprises at least one peripheral power-off restarting control circuit, wherein the peripheral power-off restarting control circuit comprises a control module, a first switch module and a second switch module, a control signal end of the control module is connected with a signal input end of the first switch module, a signal output end of the first switch module is connected with a power-on control end of the second switch module, an input end of the second switch module is connected with a first power supply, and an output end of the second switch module is a peripheral power supply end and used for supplying power to external equipment; when the first switch module receives a first level output by a control signal end of the control module, a signal output end of the first switch module outputs the first level to an on-off control end of the second switch module, so that the second switch module is switched off, and no voltage is output from the external power supply end; when the first switch module receives a second level output by a control signal end of the control module, a signal output end of the first switch module outputs the second level to an on-off control end of the second switch module, so that the second switch module is switched on, and the peripheral power supply end outputs voltage; the first level is opposite in potential to the second level.
According to the technical scheme, the power supply of the peripheral power supply end to the external equipment is controlled to be turned off and on through the level signal output by the control module, when the external equipment connected and applied to the computer is abnormal in work and needs to be powered off and restarted, the control module outputs the first level to enable the peripheral power supply end to have no voltage output, namely the power off of the external equipment is completed, and then the control module outputs the second level to enable the peripheral power supply end to recover the normal voltage output, namely the power on starting of the external equipment is completed. Compared with the prior art, the technical scheme of the invention does not need to restart the computer, greatly shortens the time spent in the power-off and restarting processes of the external equipment, saves the time, reduces the cost loss of users, and is very simple and convenient to operate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a circuit block diagram of a preferred embodiment of the peripheral power-down restart circuit of the present invention;
FIG. 2 is a circuit diagram of a first switch module and a second switch module in a preferred embodiment of the peripheral power-off restart circuit of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
The invention provides a peripheral power-off restarting control circuit of a computer, which can be applied to equipment such as all-in-one computers, notebook computers, desktop computers and the like.
Referring to fig. 1, the peripheral power-off restart control circuit of the present embodiment includes a control module 10, a first switch module 20, and a second switch module 30. A control signal terminal a of the control module 10 is connected to a signal input terminal B1 of the first switch module 20, and is configured to send a level signal (a low level signal or a high level signal) to the first switch module 20; the signal output end B2 of the first switch module 20 is connected to the on-off control end K of the second switch module 30, the input end of the second switch module 30 is connected to the first power source 40, and the output end of the second switch module 30 is a peripheral power supply end H for supplying power to an external device (e.g., a cash register, a printer, a camera, etc.). When the first switch module 20 receives the first level output by the control signal terminal a of the control module 10, the signal output terminal B2 of the first switch module 20 outputs the first level to the on-off control terminal K of the second switch module 30, the on-off control terminal K of the second switch module 30 receives the first level output by the first switch module 20, the second switch module 30 is turned off, the output terminal and the input terminal of the second switch module 30 are not connected, that is, the output terminal of the second switch module 30 is not connected to the first power supply 40, and the external power supply terminal H has no voltage output. After the external device is powered off, when the first switch module 20 receives the second level (opposite to the first level potential) output by the control signal end a of the control module 10, the signal output end B2 of the first switch module 20 outputs the second level to the on-off control end K of the second switch module 30, the on-off control end K of the second switch module 30 receives the second level output by the first switch module 20, the second switch module 30 is turned on, the output end of the second switch module 30 is communicated with the input end, that is, the output end of the second switch module 30 is communicated with the first power supply 40, the external power supply end H normally outputs voltage, so that the power supply of the external device is restored, that is, the external device is restarted after being powered off. In this embodiment, the control module 10 may be a CPU of a computer or other processing chip in the computer.
The peripheral power-off restart control circuit of the embodiment controls the power-off and start of the peripheral power supply terminal H for the external equipment through the level signal output by the control module 10, when the external equipment connected and applied to a computer is abnormal in work and needs power-off restart, the control module 10 outputs a first level to enable the peripheral power supply terminal H to have no voltage output, namely, the power-off of the external equipment is completed, and then the control module 10 outputs a second level to enable the peripheral power supply terminal H to recover normal voltage output, namely, the power-on restart of the external equipment is completed. Compared with the conventional mode of restarting the external device in a power-off mode by restarting the computer, the scheme of the embodiment does not need to restart the computer, greatly shortens the time spent in the power-off and restarting processes of the external device, saves the time, reduces the cost loss of a user, and is very simple and convenient to operate.
Further, in this embodiment, the first level is preferably a low level, and the second level is preferably a high level. Referring to fig. 2, in the present embodiment, the first switch module 20 includes a first switch tube Q1, a second switch tube Q2, a first resistor R1, a second resistor R2, and a third resistor R3; the trigger terminal of the first switch Q1 is a signal input terminal B1 of the first switch module 20, the trigger terminal of the first switch Q1 is connected to the first power supply +3VSB (i.e. 40 in fig. 1) via a first resistor R1, the first conducting terminal of the first switch Q1 is connected to the first power supply +3VSB via a second resistor R2, and the second conducting terminal of the first switch Q1 is grounded; the trigger end of the second switch tube Q2 is connected to the first conducting end of the first switch tube Q1, the first conducting end of the second switch tube Q2 is the signal output end B2 of the first switch module 20, the first conducting end of the second switch tube Q2 is connected to the second power supply +12VS via the third resistor R3, and the second conducting end of the second switch tube Q2 is grounded.
Further, the second switch module 30 includes a third switch Q3, the trigger terminal of the third switch Q3 is the on-off control terminal K of the second switch module 30, the first conducting terminal of the third switch Q3 is connected to the first power supply +3VSB, and the second conducting terminal of the third switch Q3 is the peripheral power supply terminal H.
The working principle of the peripheral power-off restart control circuit of the embodiment is as follows:
when the control signal terminal a of the control module 10 outputs a low level, the trigger terminal of the first switch tube Q1 is at a low level, the first switch tube Q1 is not turned on, the first conducting terminal of the first switch tube Q1 is not grounded, at this time, the first conducting terminal of the first switch tube Q1 is at a high level due to being connected to the +3VSB of the first power supply, the trigger terminal of the second switch tube Q2 is also at a high level, then the second switch tube Q2 is turned on, the first conducting terminal of the second switch tube Q2 is connected to the second conducting terminal, i.e., grounded, the first conducting terminal of the second switch tube Q2 is at a low level, the trigger terminal of the third switch tube Q3 is also at a low level, the third switch tube Q3 is not turned on, the first conducting terminal of the third switch tube Q3 is not connected to the second conducting terminal, the second conducting terminal of the third switch tube Q3 is not at a low level, i.e., the power supply terminal H is powered off; in the power-off state of the external device, when the control signal terminal a of the control module 10 outputs a high level, the trigger terminal of the first switch Q1 is at a high level, the first switch Q1 is turned on, the first conducting terminal and the second conducting terminal of the first switch Q1 are connected to ground, the first conducting terminal of the first switch Q1 is at a low level, the trigger terminal of the second switch Q2 is also at a low level, the second switch Q2 is not turned on, the first conducting terminal and the second conducting terminal of the second switch Q2 are not connected, the first conducting terminal of the second switch Q2 is at a high level due to the connection with the second power supply +12VS, the trigger terminal of the third switch Q3 is also at a high level, the third switch Q3 is turned on, and the second conducting terminal of the third switch Q3 is connected to the first conducting terminal (i.e., the first power supply +3VSB is connected), and the external power supply terminal H3 is used for providing the normal VSB voltage output to the external device, i.e. the external device is powered up again.
Further, in this embodiment, the first switch module 20 further includes a first capacitor C1, one end of the first capacitor C1 is connected to the trigger end of the first switch Q1, and the other end is grounded; the first capacitor C1 filters the trigger terminal of the first switch Q1 to avoid interference signals. The second switch module 30 further includes a second capacitor, a third capacitor C3, and a fourth capacitor C4, a second conducting end of the third switch tube Q3 is grounded via the second capacitor, the third capacitor C3, and the fourth capacitor C4, respectively, and the external power supply end H is subjected to filtering processing by the second capacitor, the third capacitor C3, and the fourth capacitor C4, so that influence of an interference signal on normal power supply of the external device is avoided.
Further, referring to fig. 2, in this embodiment, preferably, the first switch Q1 is a first NMOS transistor, the second switch Q2 is a second NMOS transistor, and the third switch Q3 is a third NMOS transistor. The trigger end, the first end and the second of first switch tube Q1 of switching on are led on and are held the grid that corresponds to first NMOS pipe in proper order, drain electrode and source electrode, the trigger end, the first end and the second of second switch tube Q2 of switching on are led on and are held the grid that corresponds to the second NMOS pipe in proper order, drain electrode and source electrode, the trigger end, the first end and the second of third switch tube Q3 of switching on and are led on and hold the grid that corresponds to the third NMOS pipe in proper order, drain electrode and source electrode. In addition, in the preferred embodiment, the first power supply +3VSB is powered on both the power-on state and the power-off state of the computer; the second power supply +12VS is powered on when the computer is in the power-on state and is powered off when the computer is in the power-off state. In this embodiment, it is preferable that the first power supply +3VSB is 3V, and the second power supply +12VS is 12V.
When the computer is in a shutdown state, the first power supply +3VSB is electrified, and the second power supply +12VS is not electrified; at this time, the grid of the first NMOS transistor is at a high level, the first NMOS transistor is turned on, the grid of the second NMOS transistor is at a low level, the second NMOS transistor is not turned on, at this time, the grid of the third NMOS transistor is at a low level because the second power supply +12VS is in a non-power state, the third NMOS transistor is not turned on, and the peripheral power supply terminal H has no voltage output, that is, when the computer is shut down, the computer does not supply power to the external device, and the external device is also shut down.
When the computer is in a power-on state, the first power supply +3VSB is electrified, and the second power supply +12VS is electrified; at this time, the grid electrode of the first NMOS tube is at a high level, the first NMOS tube is conducted, the grid electrode of the second NMOS tube is at a low level, the second NMOS tube is not conducted, at this time, the second power supply +12VS is electrified, so that the grid electrode of the third NMOS tube is at a high level, the third NMOS tube is conducted, the external power supply end H outputs voltage normally, the computer supplies power to the external equipment normally, and the external equipment works normally.
When the external device works abnormally and needs to be powered off and restarted, the control module 10 firstly outputs a low level, the grid electrode potential of the first NMOS tube is pulled down, the first NMOS tube is not conducted, the grid electrode of the second NMOS tube is a high level, the second NMOS tube is conducted, the drain electrode of the second NMOS tube is communicated with the ground, the grid electrode potential of the third NMOS tube is pulled down, the third NMOS tube is changed from a conduction state to a non-conduction state, the peripheral power supply end H does not output, and the power off of the external device is completed; then the control module 10 outputs a high level again, the gate potential of the first NMOS transistor becomes high, the first NMOS transistor is turned on, so that the gate of the second NMOS transistor becomes a low level, the second NMOS transistor is turned off, the gate potential of the third NMOS transistor becomes high, the third NMOS transistor becomes a conducting state, the external power supply terminal H recovers a normal voltage output, and the external device is powered on again to start.
It should be noted that, in this embodiment, it is only preferable that the first switching transistor Q1, the second switching transistor Q2, and the third switching transistor Q3 are respectively NMOS transistors as an example, and in other embodiments, the first switching transistor Q1, the second switching transistor Q2, and the third switching transistor Q3 may also be other types of MOS transistors, triodes, or other switching devices with the same function.
The present invention further provides a computer, including a peripheral device power-off restart control circuit, where the specific structure of the peripheral device power-off restart control circuit refers to the above-mentioned embodiments, and since the computer adopts all the technical solutions of the above-mentioned embodiments, the computer at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and details are not repeated here.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A peripheral power-off and restarting control circuit of a computer is characterized by comprising a control module, a first switch module and a second switch module, wherein a control signal end of the control module is connected with a signal input end of the first switch module, a signal output end of the first switch module is connected with a power-on and restarting control end of the second switch module, an input end of the second switch module is connected with a first power supply, and an output end of the second switch module is a peripheral power supply end and used for supplying power to external equipment; when the first switch module receives a first level output by a control signal end of the control module, a signal output end of the first switch module outputs the first level to an on-off control end of the second switch module, so that the second switch module is switched off, and no voltage is output from the external power supply end; when the first switch module receives a second level output by a control signal end of the control module, a signal output end of the first switch module outputs the second level to an on-off control end of the second switch module, so that the second switch module is switched on, and the peripheral power supply end outputs voltage; the first level is opposite in potential to the second level.
2. The peripheral power-off restart control circuit of claim 1, wherein the first switch module comprises a first switch tube, a second switch tube, a first resistor, a second resistor and a third resistor, the first level is a low level, and the second level is a high level; the trigger end of the first switch tube is a signal input end of the first switch module, the trigger end of the first switch tube is connected with the first power supply through the first resistor, the first conducting end of the first switch tube is connected with the first power supply through the second resistor, and the second conducting end of the first switch tube is grounded; the trigger end of the second switch tube is connected with the first conducting end of the first switch tube, the first conducting end of the second switch tube is the signal output end of the first switch module, the first conducting end of the second switch tube is connected with the third resistor to connect the second power supply, and the second conducting end of the second switch tube is grounded.
3. The peripheral power-off restart control circuit of claim 2, wherein the second switch module comprises a third switch tube, the trigger end of the third switch tube is an on-off control end of the second switch module, the first conducting end of the third switch tube is connected to the first power supply, and the second conducting end of the third switch tube is the peripheral power supply end.
4. The peripheral power-off restart control circuit of claim 3, wherein the first switch module further comprises a first capacitor, one end of the first capacitor is connected to the trigger end of the first switch tube, and the other end of the first capacitor is grounded; the second switch module further comprises a second capacitor, a third capacitor and a fourth capacitor, and a second conduction end of the third switch tube is grounded through the second capacitor, the third capacitor and the fourth capacitor respectively.
5. The peripheral device power-off restart control circuit according to claim 3 or 4, wherein the first switch tube is a first NMOS tube, the second switch tube is a second NMOS tube, the third switch tube is a third NMOS tube, the trigger end, the first conducting end and the second conducting end of the first switch tube sequentially correspond to the gate, the drain and the source of the first NMOS tube, the trigger end, the first conducting end and the second conducting end of the second switch tube sequentially correspond to the gate, the drain and the source of the second NMOS tube, and the trigger end, the first conducting end and the second conducting end of the third switch tube sequentially correspond to the gate, the drain and the source of the third NMOS tube.
6. The peripheral power-off restart control circuit of claim 3 or 4 wherein the first power supply is powered on in both the power-on and power-off states of the computer; the second power supply is powered on in the computer startup state and is powered off in the computer shutdown state.
7. A computer comprising at least one peripheral power-down restart control circuit as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294269.0A CN111625076B (en) | 2020-04-14 | 2020-04-14 | Peripheral power-off restart control circuit and computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294269.0A CN111625076B (en) | 2020-04-14 | 2020-04-14 | Peripheral power-off restart control circuit and computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111625076A true CN111625076A (en) | 2020-09-04 |
| CN111625076B CN111625076B (en) | 2022-03-18 |
Family
ID=72258861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010294269.0A Active CN111625076B (en) | 2020-04-14 | 2020-04-14 | Peripheral power-off restart control circuit and computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111625076B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486523A (en) * | 2011-01-26 | 2015-04-01 | 佳能株式会社 | Data processing apparatus capable of controlling power supply, and control method therefor |
| CN204290914U (en) * | 2014-11-28 | 2015-04-22 | Tcl通力电子（惠州）有限公司 | Reset circuit and electronic equipment |
| CN104553351A (en) * | 2013-10-14 | 2015-04-29 | 深圳市科曼医疗设备有限公司 | Thermal printer |
| CN204536998U (en) * | 2015-04-17 | 2015-08-05 | 广州炫智电子科技有限公司 | A kind of display device possessing functional module and reset |
| CN106569570A (en) * | 2016-10-20 | 2017-04-19 | 上海传英信息技术有限公司 | Hardware power-off circuit and method |
| CN106774772A (en) * | 2017-01-16 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of hot plug module electric supply installation, method and system |
| CN206619921U (en) * | 2017-03-10 | 2017-11-07 | 深圳市奇辉电气有限公司 | The control circuit and control device of a kind of timing start-up and automatic shutdown |
| CN207732504U (en) * | 2017-12-28 | 2018-08-14 | 上海胤祺集成电路有限公司 | Power supply automatic switchover circuit and intelligent electric meter microcontroller chip |
| CN108899955A (en) * | 2018-07-27 | 2018-11-27 | 上海联影医疗科技有限公司 | A kind of power-down control device and active medical equipment |
| US20190356160A1 (en) * | 2017-01-20 | 2019-11-21 | Zte Corporation | Control circuit compatible with battery power supply and external power supply |
-
2020
- 2020-04-14 CN CN202010294269.0A patent/CN111625076B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486523A (en) * | 2011-01-26 | 2015-04-01 | 佳能株式会社 | Data processing apparatus capable of controlling power supply, and control method therefor |
| CN104553351A (en) * | 2013-10-14 | 2015-04-29 | 深圳市科曼医疗设备有限公司 | Thermal printer |
| CN204290914U (en) * | 2014-11-28 | 2015-04-22 | Tcl通力电子（惠州）有限公司 | Reset circuit and electronic equipment |
| CN204536998U (en) * | 2015-04-17 | 2015-08-05 | 广州炫智电子科技有限公司 | A kind of display device possessing functional module and reset |
| CN106569570A (en) * | 2016-10-20 | 2017-04-19 | 上海传英信息技术有限公司 | Hardware power-off circuit and method |
| CN106774772A (en) * | 2017-01-16 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of hot plug module electric supply installation, method and system |
| US20190356160A1 (en) * | 2017-01-20 | 2019-11-21 | Zte Corporation | Control circuit compatible with battery power supply and external power supply |
| CN206619921U (en) * | 2017-03-10 | 2017-11-07 | 深圳市奇辉电气有限公司 | The control circuit and control device of a kind of timing start-up and automatic shutdown |
| CN207732504U (en) * | 2017-12-28 | 2018-08-14 | 上海胤祺集成电路有限公司 | Power supply automatic switchover circuit and intelligent electric meter microcontroller chip |
| CN108899955A (en) * | 2018-07-27 | 2018-11-27 | 上海联影医疗科技有限公司 | A kind of power-down control device and active medical equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111625076B (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5710107B2 (en) | Key operation detection circuit | |
| CN201000602Y (en) | Computer shut-down energy-saving circuit | |
| US7839188B2 (en) | Circuit for clearing CMOS information | |
| TWI505083B (en) | Power control circuit and elelctronic device with power control circuit | |
| JP3150567U (en) | Electronic device that reduces power consumption when computer motherboard shuts down | |
| CN101727159A (en) | Power supply control circuit | |
| US9141575B2 (en) | Power supply circuit for universal serial bus interface | |
| TW201416845A (en) | Motherboard | |
| CN114089714B (en) | portable electronic device | |
| CN111625076B (en) | Peripheral power-off restart control circuit and computer | |
| CN101625588B (en) | Supply circuit of PWM controller | |
| CN110942747B (en) | OLED display device and control method thereof | |
| CN113641233A (en) | Power supply circuit for preventing power failure in reset state and flexible keyboard | |
| CN112578890B (en) | Server device capable of remotely controlling node power supply | |
| US9746891B2 (en) | Computer | |
| US8484492B2 (en) | Electronic device and power control module for controlling a starting process of the electronic device utilizing a delay latch circuit and an inverse logic unit | |
| CN215071615U (en) | Input undervoltage protection module for power supply and power supply | |
| CN220381556U (en) | Equipment awakening circuit and equipment | |
| CN111984103B (en) | Power supply control circuit and electronic device applying same | |
| CN108664435B (en) | Data clearing circuit and electronic equipment | |
| CN216649655U (en) | Self-release control circuit and device of self-locking switch | |
| CN111142646B (en) | Server system and power saving method thereof | |
| KR20040001727A (en) | Computer system | |
| TWI299614B (en) | Improved voltage-signal generating circuit | |
| CN117742470A (en) | Startup control circuit and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |