CN203326556U - Resetting system of power supply circuit - Google Patents
Resetting system of power supply circuit Download PDFInfo
- Publication number
- CN203326556U CN203326556U CN2013203043866U CN201320304386U CN203326556U CN 203326556 U CN203326556 U CN 203326556U CN 2013203043866 U CN2013203043866 U CN 2013203043866U CN 201320304386 U CN201320304386 U CN 201320304386U CN 203326556 U CN203326556 U CN 203326556U
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- power supply
- supply circuits
- supply circuit
- control device
- resetting
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Abstract
The utility model discloses a resetting system of a power supply circuit. The power supply circuit resetting system (1) comprises a resetting signal generation device (2) and a power supply circuit control device (3). The input end of the resetting signal generation device (2) is connected with a power source of the power supply circuit while the output end is connected with the input end of the power supply circuit control device (3). Before the power source is resumed after the power source is off, the power supply circuit must undergo a period when the power supply is first unavailable and then available. From the start of the period, the resetting signal generation device (2) sends one or a plurality of resetting signals to the power supply circuit control device (3). After receiving the resetting signals, the power supply circuit control device (3) controls the power supply circuit to be switched off or on. The system has the characteristics of small volume, low energy consumption and strong anti-interference capability. An original control circuit of the power supply circuit can be used. The system cost can be significantly lowered.
Description
Technical field
The present invention relates to a kind of repositioning method and system of circuit, particularly relate to a kind of repositioning method and system of power supply circuits.
Background technology
Power supply circuits may, due to power supply fault or the of short duration power down of other reasons, then restore electricity again.After power down, the switch of power supply circuits may disconnect, and also may keep connecting.In this case, according to different application requirements, the situation that may after the power supply power down, circuit reset extremely be disconnected, in order to allow the user determine whether again close a floodgate; Perhaps need circuit reset to the situation of connecting, in order to be that subsequent action is ready.Proper reset likely can not cause device damage even to cause security incident on request.
Generally a kind of circuit power-off reset method and system of application is AC relay self-locking control method and system (" simple and clear eelctrical engineering handbook ", the Liu Hangchuan chief editor, publication date: in October, 2003, the 496th page), its principle is, when the power supply power down, thereby making the relay main contacts disconnect, the Gravitative Loads of relay iron cuts off power supply circuits, reach the purpose of the power supply circuits that reset.But, for some power supply circuits, its power supply circuits switch, due to the structure reason, can't disconnect after the power supply power down.For example, earth leakage protective device, after its power supply circuits switch closure, can only disconnect by a mechanical release device of being controlled by control circuit, therefore after the power supply circuits power down, still remains closed situation.For this class circuit, existing AC relay self-locking control method and system are just helpless.
Summary of the invention
The object of the invention is to overcome the formerly above-mentioned deficiency of method and system, a kind of repositioning method and system of power supply circuits are proposed, can be after the power supply power down, power supply circuits are resetted according to designing requirement, to eliminate potential equipment and personal potential safety hazard, or be that follow-up work is ready.
Above-mentioned purpose of the present invention can realize by the following technical solutions.A kind of repositioning method of power supply circuits is proposed:
A kind of power supply circuits repositioning method, send reset signal by reseting signal generator to the power supply circuits control device.
Described power supply circuits repositioning method, said reseting signal generator grows out of nothing constantly to rise at power supply and sends reset signal.
Described power supply circuits repositioning method, said reset signal can be one or several.
Described power supply circuits repositioning method, said power supply circuits control device is controlled power supply circuits and is disconnected or connect after receiving reset signal.
For realizing the repositioning method of above-mentioned purpose of the present invention and power supply circuits, a kind of resetting system of power supply circuits is proposed:
A kind of power supply circuits resetting system, comprising: reseting signal generator, for generation of reset signal; The power supply circuits control device, for receiving reset signal and controlling the power supply circuits break-make; The input of reseting signal generator connects the power supply circuits power supply, and the output of reseting signal generator connects the input of power supply circuits control device.
Described power supply circuits resetting system, is characterized in that, described reseting signal generator grows out of nothing and constantly rises and send reset signal at the power supply circuits power supply.
Described power supply circuits resetting system, is characterized in that, described reset signal can be one or several.
Described power supply circuits resetting system, is characterized in that, described power supply circuits control device receives after the reset signal that reseting signal generator sends that controlling power supply circuits disconnects or connect.
Beneficial effectCompared with prior art, the beneficial effect of the method and system of the invention described above is:
1. must experience the grow out of nothing feature of process of power supply while utilizing after power supply power-fail again to electricity, as the work foundation of system of the present invention, simplify system, improve again the reliability of system.
2. can utilize the original control circuit of power supply circuits to substitute the required power supply circuits control device of system of the present invention, greatly reduce system cost.
3. the volume of system is little, and energy consumption is low, and antijamming capability is strong and reliability is high.
The accompanying drawing explanation
Fig. 1 is method flow block diagram of the present invention.
Fig. 2 is systematic schematic diagram of the present invention.
Fig. 3 is the schematic diagram of the embodiment of the present invention 1.
Fig. 4 is the schematic diagram of the embodiment of the present invention 2.
In figure: power supply circuits resetting system 1 reseting signal generator 2 power supply circuits control device 3
EmbodimentBelow in conjunction with each accompanying drawing, the present invention is described in further detail.
The FB(flow block) that Fig. 1 is the inventive method.As shown in fig. 1, in the moment of growing out of nothing from circuit power, reseting signal generator sends one or several reset signal, and the power supply circuits control device moves after receiving reset signal, control power supply circuits and disconnect or connect, the predetermined power supply circuits of the completion system purpose that resets.
Fig. 2 is systematic schematic diagram of the present invention.In Fig. 2, reseting signal generator 2 is usually by RC(resistance and electric capacity) charging circuit and IC(integrated circuit) combination form; Power supply circuits control device 3 generally includes can be by the executive component of various signal trigger actions, triode for example, controllable silicon etc., drive relay, disconnection or the closure of power supply circuits controlled in the contact output of relay, or the direct adhesive mechanical release device of relay makes the power supply circuits switch disconnect.
Specific embodiment 1:
Fig. 3 is the schematic diagram of the embodiment of the present invention 1.In Fig. 3, the IC in reseting signal generator 2 can be 555 time-base circuits, and operation amplifier circuit, or single-chip microcomputer have formed monostable trigger-action circuit together with the RC element, and its output connects the input of power supply circuits control device 3.Power supply circuits control device 3 comprises amplification driving circuit, drives a midget relay; Relay contact is controlled the power supply circuits main switch.Introduce the power supply circuits AC power of reseting signal generator 2 as the triggering signal of device 2, pass through again step-down and the rectification working power as monostable trigger-action circuit.Again give electricity after the power supply circuits power supply power-fail, reseting signal generator 2 obtains DC power supply VCC, starts to charge to the RC branch road.Charging starts, and the current potential at C two ends can not sport zero, and IC circuit output high level rises to the action threshold value of IC through the current potential at t=1.1RC C two ends after the time, and the output of IC becomes the stable state low level, has completed the output of a pulse.This pulse is arrived at after the interior amplifying circuit of follow-up power supply circuits control device 3 amplifies, or directly arrives at amplification driving circuit, midget relay action, disconnection or the closure of control power supply circuits.
Specific embodiment 2:
Fig. 4 has shown the operation principle of the embodiment of the present invention 2 together with Fig. 2.In the present embodiment, the switch of the power supply circuits shown in Fig. 2, with residual current device (RCD), can prevent possible electric shock accidents.This switch can only disconnect by mechanical release device after closing a floodgate and connecting power supply circuits.We wish at the power supply circuits power supply power-fail and while again powering, and the power supply circuits switch is in off-state, with avoid load direct electric startup.IC in reseting signal generator 2 shown in Fig. 4 has adopted photoelectric coupled device, and its input is connected with the RC branch road, and output directly connects the controllable silicon in power supply circuits control device 3, solenoid of SCR control.Once controlled silicon conducting, solenoid can obtain electric adhesive, and then pulls a mechanical release device to make the power supply circuits switch disconnect.Its course of work is: again give electricity after the power supply circuits power supply power-fail, the pulse charging current of RC is by IC internal illumination element, IC output pulse signal, trigger controlled silicon conducting, obtain electricly with the solenoid of controllable silicon in serial connection, pull trip gear, the power supply circuits switch disconnects.
Of particular note, the reset signal that in the present invention, reseting signal generator 2 produces can be pulse signal, as shown in above-mentioned embodiment 1 and 2, can be also the signal of other any waveform, as long as can 3 actions of triggering following power supply circuits control device.The moment that the reset signal that in the present invention, reseting signal generator 2 produces can be grown out of nothing at circuit power sends, as shown in above-mentioned embodiment 1 and 2, also can after this moment, send, but to complete in the past user's operation power contactor again, otherwise likely disturb the normal power supply of power supply circuits.Consider from power supply again supply power to the user again the operation power contactor during this period of time, enough very long for the time with respect to the Rapid reset of circuit, this condition is easy to be met.
In addition, reseting signal generator 2 and the power supply circuits control device 3 of power supply circuits resetting system of the present invention can also adopt other public circuit, and the enforcement and the systemic-function that do not affect the inventive method realize.
The invention provides a kind of repositioning method and system of power supply circuits, constantly start to send one or several reset signal by growing out of nothing from the power supply circuits power supply, the triggering following control circuit connects or disconnects power supply circuits, to meet after different application is cut off the power supply to power supply circuits, restarts the initialized requirement of circuit.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention.Every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to do, or directly or indirectly be applied in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (4)
1. a power supply circuits resetting system, is characterized in that, comprising: reseting signal generator (2), for generation of reset signal; Power supply circuits control device (3), for receiving reset signal and controlling the power supply circuits break-make; The input of reseting signal generator (2) connects the power supply circuits power supply, and the output of reseting signal generator (2) connects the input of power supply circuits control device (3).
2. power supply circuits resetting system according to claim 1, is characterized in that, described reseting signal generator (2) grows out of nothing and constantly rises and send reset signal at the power supply circuits power supply.
3. power supply circuits resetting system according to claim 1, is characterized in that, described reset signal can be one or several.
4. power supply circuits resetting system according to claim 1, is characterized in that, described power supply circuits control device (3) receives after the reset signal that reseting signal generator (2) sends that controlling power supply circuits disconnects or connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203043866U CN203326556U (en) | 2013-05-29 | 2013-05-29 | Resetting system of power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203043866U CN203326556U (en) | 2013-05-29 | 2013-05-29 | Resetting system of power supply circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203326556U true CN203326556U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203043866U Expired - Lifetime CN203326556U (en) | 2013-05-29 | 2013-05-29 | Resetting system of power supply circuit |
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| CN (1) | CN203326556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218517A (en) * | 2013-05-29 | 2014-12-17 | 吴伟 | A method and system for resetting a power supply circuit |
-
2013
- 2013-05-29 CN CN2013203043866U patent/CN203326556U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218517A (en) * | 2013-05-29 | 2014-12-17 | 吴伟 | A method and system for resetting a power supply circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |