CN202153302U - Standby control circuit - Google Patents
Standby control circuit Download PDFInfo
- Publication number
- CN202153302U CN202153302U CN2011201996172U CN201120199617U CN202153302U CN 202153302 U CN202153302 U CN 202153302U CN 2011201996172 U CN2011201996172 U CN 2011201996172U CN 201120199617 U CN201120199617 U CN 201120199617U CN 202153302 U CN202153302 U CN 202153302U
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- CN
- China
- Prior art keywords
- standby
- cpu
- host cpu
- power supply
- control circuit
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a standby control circuit, comprising a standby power supply circuit connected with an input power supply, a standby CPU used for controlling standby of a host CPU and connected with an output end of the standby power supply circuit and the host CPU, and a relay connected with the standby CPU, wherein on/off of the relay is controlled by output control signals of the standby CPU, and the relay is serially connected between an input power supply and the host CPU. The standby CPU independent from the host CPU realizes real standby, the standby CPU does not occupy resources of the host CPU at all, and the host CPU is completely powered off when in a standby state, so standby power consumption of a device is reduced, and service life of the host CPU in the device is prolonged. With strong transplantability, the standby control circuit is particularly suitable for being applied to multipath power supply systems and large-power devices.
Description
Technical field
The utility model relates to a kind of control circuit, especially relates to a kind of readiness control circuit that is independent of control system in the equipment.
Background technology
Along with the progress of electronic science and technology, various equipment by circuit control realization robotization or semi-automation are more and more.These equipment all have duty and holding state, and said holding state is meant the waiting status after the electrical equipment energized, in case receive working instruction signal, get into duty immediately.
Simultaneously, energy-conserving and environment-protective have become the problem that countries in the world are paid close attention to.The power problems of various device when standby or zero load more and more comes into one's own.Each environmental protection organization is just promoting the development of this respect, and they are devoted to reduce the loss and the energy dissipation of electric equipment.
At present; Most of equipment are integrated in readiness control circuit in system's host CPU; So not only take the resource of control system, and in fact during standby control system be to be in running status always, be a kind of " false standby "; Be unfavorable for reducing equipment power dissipation, more be unfavorable for protecting the serviceable life of equipment.
Summary of the invention
The utility model proposes a kind of readiness control circuit that is independent of control system in the equipment, and this readiness control circuit is independent of the control system of equipment, thereby realizes " true standby " on the standby meaning.
The utility model adopts following technical scheme to realize: a kind of readiness control circuit, and it comprises: the standby power circuit that connects the input power supply; The standby CPU that is used for main control system CPU standby, this standby CPU connects the output terminal and the host CPU of standby power circuit; Connect standby CPU and broken off or closed relay by the control of standby CPU output control signal, this relay is serially connected between input power supply and the host CPU.
Wherein, said readiness control circuit also comprises: be used for when pressing, sending push button signalling and make standby CPU send disconnection of control signal pilot relay or closed button, this button connects standby CPU.
Wherein, button connects one of them GPIO interface of standby CPU.
Wherein, be connected through the GPIO interface between standby CPU and the host CPU.
Wherein, the standby power circuit comprises transformer, rectifier and the voltage stabilizer of serial connection successively.
Compared with prior art, the utlity model has following beneficial effect:
The utility model adopts the standby CPU that is independent of host CPU to realize " true standby "; This standby CPU does not take the resource of host CPU fully; And host CPU is in off-position fully during standby, not only reduces the stand-by power consumption of equipment, also helps the serviceable life of host CPU in the protection equipment.In addition, the utility model especially is suitable for some multiple-way supply power-supply system and powerful devices, and is portable strong.
Description of drawings
Fig. 1 is the circuit diagram of a specific embodiment of the utility model.
Embodiment
The utility model proposes a kind of readiness control circuit that is independent of control system in the equipment (or host CPU), and host CPU is in off-position fully when standby, thereby realizes " true standby " on the standby meaning
As shown in Figure 1, host CPU is used for the normal operation of each functional module of opertaing device, and this host CPU is by the host power supply circuit power supply that connects, and this host power supply circuit serial connection relay K 1 connects input power supply (alternating voltage of 220V).The readiness control circuit of the utility model comprises: the standby power circuit; Be connected the standby CPU of standby power circuit output end; The button S1 that connects one of them general I/O port (GPIO, General Purpose Input Output) interface of standby CPU.Wherein, one of them GPIO interface of standby CPU connects relay K 1, is used to export disconnection or the closure of steering order pilot relay K1; And also be connected through the GPIO interface between standby CPU and the host CPU: GPIO interface is used for standby CPU and sends the outage detection signal and give host CPU, and another GPIO interface is used for host CPU and sends standby signal and give standby CPU.
Wherein, the standby power circuit comprises transformer T1, rectifier and the voltage stabilizer of serial connection successively, and the former limit of this transformer T1 connects the alternating voltage of 220V, and secondary connects rectifier, and the output terminal of voltage stabilizer connects standby CPU; Is the alternating voltage of certain amplitude by transformer T1 with the alternating voltage step-down of 220V; Ac voltage rectifier is become the DC voltage of identical amplitude by rectifier; By voltage stabilizer the DC voltage voltage stabilizing of rectifier output is handled, the output amplitude constant DC is pressed to standby CPU and is supplied power.
The principle of work of the utility model is following:
1, long by start button S1, when the standby cpu system detects push button signalling, automatic output control signal control relay K1; Make K1 break off; Thereby break off the power supply of host CPU, this moment, equipment got into holding state, and host CPU is zero because of the power consumption of cutting off the power supply fully.At this moment, have only standby CPU to be in the standby running status, as the S1 that pushes button, standby CPU detects starting-up signal, and automatic output control signal control relay K1 makes K1 closed, replys the host CPU power supply, the host CPU start.
2, when host CPU is in running status; Standby signal or off signal have been exported; Standby CPU detects after standby signal or the off signal, and then automatic output control signal control relay K1 makes relay K 1 break off the power supply of host CPU; Equipment gets into holding state, and host CPU cuts off the power supply fully.
In addition, for the host CPU that has back-up source, this device is exported a signal to host CPU when the alternating current outage of 220V; Can carry out control corresponding behind the host CPU picked up signal; Such as stopping some parts operation, reduce power, make the sustainable time of back-up source longer.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. a readiness control circuit is characterized in that, comprising:
The standby power circuit that connects the input power supply;
The standby CPU that is used for main control system CPU standby, this standby CPU connects the output terminal and the host CPU of standby power circuit;
Connect standby CPU and broken off or closed relay by the control of standby CPU output control signal, this relay is serially connected between input power supply and the host CPU.
2. according to the said readiness control circuit of claim 1, it is characterized in that, also comprise: be used for when pressing, sending push button signalling and make standby CPU send disconnection of control signal pilot relay or closed button, this button connects standby CPU.
3. according to the said readiness control circuit of claim 2, it is characterized in that button connects one of them GPIO interface of standby CPU.
4. according to the said readiness control circuit of claim 1, it is characterized in that, be connected through the GPIO interface between standby CPU and the host CPU.
5. according to any said readiness control circuit of claim 1-4, it is characterized in that the standby power circuit comprises transformer, rectifier and the voltage stabilizer of serial connection successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201996172U CN202153302U (en) | 2011-06-15 | 2011-06-15 | Standby control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201996172U CN202153302U (en) | 2011-06-15 | 2011-06-15 | Standby control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153302U true CN202153302U (en) | 2012-02-29 |
Family
ID=45693797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201996172U Expired - Fee Related CN202153302U (en) | 2011-06-15 | 2011-06-15 | Standby control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202153302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963319A (en) * | 2012-11-28 | 2013-03-13 | 深圳市航盛电子股份有限公司 | Dual-control vehicle-mounted terminal device and method based on X86 and ARM (Advanced RISC Machine) |
-
2011
- 2011-06-15 CN CN2011201996172U patent/CN202153302U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963319A (en) * | 2012-11-28 | 2013-03-13 | 深圳市航盛电子股份有限公司 | Dual-control vehicle-mounted terminal device and method based on X86 and ARM (Advanced RISC Machine) |
| CN102963319B (en) * | 2012-11-28 | 2015-05-13 | 深圳市航盛电子股份有限公司 | Dual-control vehicle-mounted terminal device and method based on X86 and ARM (Advanced RISC Machine) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 Termination date: 20190615 |