CN206517277U - The control circuit and Switching Power Supply of a kind of signal detection processing - Google Patents
The control circuit and Switching Power Supply of a kind of signal detection processing Download PDFInfo
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- CN206517277U CN206517277U CN201621173493.XU CN201621173493U CN206517277U CN 206517277 U CN206517277 U CN 206517277U CN 201621173493 U CN201621173493 U CN 201621173493U CN 206517277 U CN206517277 U CN 206517277U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model is related to the control circuit and Switching Power Supply of a kind of signal detection processing.Including：Access and monitor the electric voltage observation circuit whether standby output voltage of power module reaches predeterminated voltage；The protection circuit of internal microcontroller supply voltage is connected and accessed with electric voltage observation circuit；The electric voltage observation circuit monitoring standby output voltage of power module reaches predeterminated voltage, then electric voltage observation circuit is turned on, and protection circuit controls signal to be transmitted to transmit to controller；The electric voltage observation circuit monitoring standby output voltage of power module is not up to predeterminated voltage, then electric voltage observation circuit disconnects, and protection circuit shields signal to be transmitted and transmitted to controller.By implementing the utility model, by controlling the signal under the special state by power supply to deal with, it is to avoid the wrong report of signal and ensure the stability of power work.
Description
Technical field
The utility model is related to electronic device field, more specifically to a kind of control circuit of signal detection processing
And Switching Power Supply.
Background technology
In Switching Power Supply and various electronic equipments, signal transmission plays crucial work for the normal work of electronic equipment
With.During electronic device works, because simultaneously machine redundancy condition is present, when some power supply not upper AC power supplies, the MCU of secondary
(micro-control unit) is also required to be provided by bus power source and powers and provide communication function, to report to the work of this power module of system
State and failure situation.Meanwhile, the current detecting control IC of accessory power supply power supply is also required to bus and provides to prevent bias too
It is big to damage detection IC.But, because power supply now is unlike IC, other each input pin voltages leave enough pressure differences and led
Output signal level mistake is caused, and this wrong current potential is offered into MCU so that MCU offers system error message, finally due to judging
Mistake and power-supply system is alarmed.
Utility model content
The technical problems to be solved in the utility model is, for the above-mentioned because wrong current potential causes to judge of prior art
Mistake and make a kind of control circuit that is handled there is provided signal detection of defect and Switching Power Supply that power-supply system alarms.
The utility model solves the technical scheme that its technical problem used：Construct a kind of control of signal detection processing
Circuit, including：
Access and monitor the electric voltage observation circuit whether standby output voltage of power module reaches predeterminated voltage；
The protection circuit of internal microcontroller supply voltage is connected and accessed with the electric voltage observation circuit；
The electric voltage observation circuit monitors the standby output voltage of power module and reaches predeterminated voltage, then the voltage prison
Slowdown monitoring circuit is turned on, and the protection circuit controls signal to be transmitted to transmit to controller；
The electric voltage observation circuit monitors the standby output voltage of power module and is not up to predeterminated voltage, then the voltage
Observation circuit disconnects, and the protection circuit shields the signal to be transmitted and transmitted to the controller.
Preferably, in the control circuit of signal detection described in the utility model processing, the protection circuit includes three
Pole pipe Q1 and triode Q2, wherein,
The base stage of the triode Q1 receives the standby output voltage of power module, institute by the electric voltage observation circuit
The colelctor electrode for stating triode Q1 receives the internal microcontroller supply voltage, the grounded emitter of the triode Q1；
The base stage of the triode Q2 receives the internal microcontroller supply voltage, and the colelctor electrode of the triode Q2 connects
Receive the signal to be transmitted, the grounded emitter of the triode Q2；
The standby output voltage of circuit monitoring power module reaches predeterminated voltage described in the voltage monitoring, then the triode
Q1 is turned on, and the triode Q2 disconnects, and the signal to be transmitted is transmitted to controller；
The electric voltage observation circuit monitoring standby output voltage of power module is not up to predeterminated voltage, then the triode Q1
Disconnect, the triode Q2 conductings, the signal to be transmitted can not be transmitted to controller.
Preferably, in the control circuit of signal detection described in the utility model processing, the electric voltage observation circuit is
Voltage-regulator diode ZD, the protection circuit connects the positive pole of the voltage-regulator diode ZD, and the negative pole of the voltage-regulator diode ZD connects
Receive the standby output voltage of the power module.
Preferably, in the control circuit of signal detection described in the utility model processing, the electric voltage observation circuit is
Comparator, the comparator is used to monitor the standby output voltage of the power module, and the standby output voltage of power module reaches
To predeterminated voltage, then the comparator connection；The standby output voltage of power module is not up to predeterminated voltage, then the comparison
Device disconnects.
Preferably, in the control circuit of signal detection described in the utility model processing, the base stage of the triode Q1
The positive pole of the voltage-regulator diode ZD is connected, the negative pole of the voltage-regulator diode ZD receives the standby output electricity of the power module
Pressure.
Preferably, in the control circuit of signal detection described in the utility model processing, the base stage of the triode Q1
By resistance R4 connections voltage-regulator diode ZD positive pole, the base stage of the triode Q1 passes through series resistance R4 and electric capacity C1
Ground connection.
Preferably, in the control circuit of signal detection described in the utility model processing, the current collection of the triode Q1
Pole receives the internal microcontroller supply voltage by resistance R1；
The emitter stage that the base stage of the triode Q1 passes through the resistance R5 connections triode Q1.
Preferably, in the control circuit of signal detection described in the utility model processing, the base stage of the triode Q2
The internal microcontroller supply voltage is received by series resistance R2 and resistance R1, the base stage of the triode Q2 passes through resistance
R3 connections triode Q2 emitter stage.
Preferably, in the control circuit of signal detection described in the utility model processing, the signal to be transmitted includes
First signal and secondary signal；
The colelctor electrode connection diode D1 of triode Q2 negative pole, the positive pole of the diode D1 receives described first
Signal；
The colelctor electrode connection diode D2 of triode Q2 negative pole, the positive pole of the diode D2 receives described second
Signal.
In addition, a kind of Switching Power Supply is also disclosed in the utility model, the Switching Power Supply includes the control that above-mentioned signal detection is handled
Circuit processed.
Implement the control circuit and Switching Power Supply of signal detection processing of the present utility model, have the advantages that：Should
The control circuit of signal detection processing includes：Access and monitor the electricity whether standby output voltage of power module reaches predeterminated voltage
Press observation circuit；The protection circuit of internal microcontroller supply voltage is connected and accessed with electric voltage observation circuit；Voltage monitoring electricity
The road monitoring standby output voltage of power module reaches predeterminated voltage, then electric voltage observation circuit is turned on, and protection circuit control is to be transmitted
Signal is transmitted to controller；The electric voltage observation circuit monitoring standby output voltage of power module is not up to predeterminated voltage, then voltage is supervised
Slowdown monitoring circuit disconnects, and protection circuit shields signal to be transmitted and transmitted to controller.By implementing the utility model, by controlling electricity
Signal under the special state in source is dealt with, it is to avoid the wrong report of signal and ensure the stability of power work.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is a kind of structural representation of the control circuit of signal detection processing of the utility model；
Fig. 2 is a kind of circuit diagram of the control circuit of signal detection processing of the utility model.
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed
Illustrate this embodiment of the present utility model.
As shown in Figure 1-2, it is preferred embodiment of the present utility model.
Fig. 1 is a kind of structural representation of the control circuit of signal detection processing of the utility model.Specifically, the present embodiment
A kind of control circuit of signal detection processing is disclosed, including：
Access and monitor the electric voltage observation circuit whether standby output voltage of power module reaches predeterminated voltage；
The protection circuit of internal microcontroller supply voltage is connected and accessed with electric voltage observation circuit；
The electric voltage observation circuit monitoring standby output voltage of power module reaches predeterminated voltage, then electric voltage observation circuit is turned on,
Protection circuit controls signal to be transmitted to transmit to controller；
The electric voltage observation circuit monitoring standby output voltage of power module is not up to predeterminated voltage, then electric voltage observation circuit breaks
Open, protection circuit shields signal to be transmitted and transmitted to controller.
Fig. 2 is a kind of circuit diagram of the control circuit of signal detection processing of the utility model.
Preferably, in the control circuit that the signal detection of the present embodiment is handled, protection circuit includes triode Q1 and three
Pole pipe Q2, wherein,
Triode Q1 base stage receives the standby output voltage of power module, triode Q1 current collection by electric voltage observation circuit
Pole receives internal microcontroller supply voltage, triode Q1 grounded emitter；
Triode Q2 base stage receives internal microcontroller supply voltage, and triode Q2 colelctor electrode receives letter to be transmitted
Number, triode Q2 grounded emitter；
The electric voltage observation circuit monitoring standby output voltage of power module reaches predeterminated voltage, then triode Q1 is turned on, three poles
Pipe Q2 is disconnected, and signal to be transmitted is transmitted to controller；
The electric voltage observation circuit monitoring standby output voltage of power module is not up to predeterminated voltage, then triode Q1 disconnects, and three
Pole pipe Q2 is turned on, and signal to be transmitted can not be transmitted to controller.
Preferably, the present embodiment signal detection handle control circuit in, signal to be transmitted include the first signal and
Secondary signal；Preferably, the first signal is short circuit amplification current detecting amplified signal, and the voltage of the first signal is 12V；Second letter
Number it is output electric current measure amplified signal, the voltage of secondary signal is 12V.
Triode Q2 colelctor electrode connection diode D1 negative pole, diode D1 positive pole receives the first signal；
Triode Q2 colelctor electrode connection diode D2 negative pole, diode D2 positive pole receives secondary signal.
It is appreciated that signal to be transmitted not only includes the first signal and secondary signal cited by the present embodiment, can be with
Including multiple signals, the access way of multiple signals may be referred to the present embodiment implementation.
Preferably, in the control circuit that the signal detection of the present embodiment is handled, electric voltage observation circuit is voltage-regulator diode
ZD, protection circuit connection voltage-regulator diode ZD positive pole, voltage-regulator diode ZD negative pole receives the standby output voltage of power module.
Signal detection processing specific control process be：
When power module works, the standby output voltage of power module reaches predeterminated voltage, such as 12V, voltage-regulator diode
ZD is turned on, and this voltage reaches triode Q1 base stage through voltage-regulator diode ZD, and driving triode Q1 is turned on, thus, triode Q2
The drive signal of base stage be pulled low, triode Q2 disconnects, and the first signal and secondary signal are without going past diode D1 and two poles
Pipe D2 and drag down, can transmit to controller and make information processing.
When power module access failure alternating current and machine work, the standby output voltage of power module reaches predeterminated voltage, example
Such as 12V, the Q1 conductings of driving triode disconnect, and the drive signal of triode Q2 base stage puts height, triode Q2 conductings, the first signal
Dragged down with secondary signal by diode D1 and diode D2, the first signal and secondary signal are shielded, it is impossible to transmitted to control
Device processed makees information processing, will not cause wrong report.
Or
Preferably, in the control circuit that the signal detection of the present embodiment is handled, electric voltage observation circuit is comparator, is compared
Device is used to monitor the standby output voltage of power module, and the standby output voltage of power module reaches predeterminated voltage, then comparator is connected,
First signal and secondary signal, which can be transmitted to controller, makees information processing；The standby output voltage of power module is not up to default electricity
Pressure, then comparator disconnection, the first signal and secondary signal can not be transmitted to controller and make information processing, will not cause wrong report.
Preferably, in the control circuit that the signal detection of the present embodiment is handled, triode Q1 base stage connection voltage stabilizing two
Pole pipe ZD positive pole, voltage-regulator diode ZD negative pole receives the standby output voltage of power module.
Preferably, in the control circuit that the signal detection of the present embodiment is handled, triode Q1 base stage passes through resistance R4
Voltage-regulator diode ZD positive pole is connected, triode Q1 base stage is grounded by series resistance R4 and electric capacity C1.
Preferably, in the control circuit that the signal detection of the present embodiment is handled, triode Q1 colelctor electrode passes through resistance
R1 receives internal microcontroller supply voltage；
The emitter stage that triode Q1 base stage passes through resistance R5 connecting triodes Q1.
Preferably, in the control circuit that the signal detection of the present embodiment is handled, triode Q2 base stage passes through series electrical
Hinder R2 and resistance R1 and receive internal microcontroller supply voltage, the hair that triode Q2 base stage passes through resistance R3 connecting triodes Q2
Emitter-base bandgap grading.
Preferably, torch C1 is 470pF/50V, and resistance R1 is 10K Ω, and resistance R2 is 10K Ω, and resistance R3 is 4K Ω, electricity
Resistance R4 is 10K Ω, and resistance R5 is 4K Ω.
By implementing the utility model, by controlling the signal under the special state by power supply to deal with, it is to avoid signal
Wrong report and ensure the stability of power work.
In addition, a kind of Switching Power Supply is also disclosed in the utility model, Switching Power Supply includes the control electricity that above-mentioned signal detection is handled
Road.
Above example is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement accordingly, protection domain of the present utility model can not be limited.It is all with
The equivalent changes and modifications that the utility model right is done, all should belong to the utility model claim covers model
Enclose.
Claims (7)
1. a kind of control circuit of signal detection processing, it is characterised in that including：
Access and monitor the electric voltage observation circuit whether standby output voltage of power module reaches predeterminated voltage；
The protection circuit of internal microcontroller supply voltage is connected and accessed with the electric voltage observation circuit；
The electric voltage observation circuit monitors the standby output voltage of power module and reaches predeterminated voltage, then the voltage monitoring electricity
Road is turned on, and the protection circuit controls signal to be transmitted to transmit to controller；
The electric voltage observation circuit monitors the standby output voltage of power module and is not up to predeterminated voltage, then the voltage monitoring
Circuit disconnects, and the protection circuit shields the signal to be transmitted and transmitted to the controller；
The protection circuit includes triode Q1 and triode Q2, wherein,
The base stage of the triode Q1 receives the standby output voltage of power module, described three by the electric voltage observation circuit
Pole pipe Q1 colelctor electrode receives the internal microcontroller supply voltage, the grounded emitter of the triode Q1；
The base stage of the triode Q2 receives the internal microcontroller supply voltage, and the colelctor electrode of the triode Q2 receives institute
State signal to be transmitted, the grounded emitter of the triode Q2；
The standby output voltage of circuit monitoring power module reaches predeterminated voltage described in the voltage monitoring, then the triode Q1 is led
Logical, the triode Q2 is disconnected, and the signal to be transmitted is transmitted to controller；
The electric voltage observation circuit monitoring standby output voltage of power module is not up to predeterminated voltage, then the triode Q1 breaks
Open, the triode Q2 conductings, the signal to be transmitted can not be transmitted to controller；
The electric voltage observation circuit is voltage-regulator diode ZD, and the protection circuit connects the positive pole of the voltage-regulator diode ZD, institute
The negative pole for stating voltage-regulator diode ZD receives the standby output voltage of power module；Or the electric voltage observation circuit is comparator,
The comparator is used to monitor the standby output voltage of the power module, and the standby output voltage of power module reaches default electricity
Pressure, then the comparator connection；The standby output voltage of power module is not up to predeterminated voltage, then the comparator disconnects.
2. the control circuit of signal detection processing according to claim 1, it is characterised in that the base stage of the triode Q1
The positive pole of the voltage-regulator diode ZD is connected, the negative pole of the voltage-regulator diode ZD receives the standby output electricity of the power module
Pressure.
3. the control circuit of signal detection processing according to claim 2, it is characterised in that the base stage of the triode Q1
By resistance R4 connections voltage-regulator diode ZD positive pole, the base stage of the triode Q1 passes through series resistance R4 and electric capacity C1
Ground connection.
4. the control circuit of signal detection processing according to claim 3, it is characterised in that the current collection of the triode Q1
Pole receives the internal microcontroller supply voltage by resistance R1；
The emitter stage that the base stage of the triode Q1 passes through the resistance R5 connections triode Q1.
5. the control circuit of signal detection processing according to claim 1, it is characterised in that the base stage of the triode Q2
The internal microcontroller supply voltage is received by series resistance R2 and resistance R1, the base stage of the triode Q2 passes through resistance
R3 connections triode Q2 emitter stage.
6. the control circuit of signal detection processing according to claim 5, it is characterised in that the signal to be transmitted includes
First signal and secondary signal；
The colelctor electrode connection diode D1 of triode Q2 negative pole, the positive pole of the diode D1 receives first letter
Number；
The colelctor electrode connection diode D2 of triode Q2 negative pole, the positive pole of the diode D2 receives second letter
Number.
7. a kind of Switching Power Supply, it is characterised in that the Switching Power Supply includes being examined according to any described signals of claim 1-6
Survey the control circuit of processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173493.XU CN206517277U (en) | 2016-10-25 | 2016-10-25 | The control circuit and Switching Power Supply of a kind of signal detection processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173493.XU CN206517277U (en) | 2016-10-25 | 2016-10-25 | The control circuit and Switching Power Supply of a kind of signal detection processing |
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| Publication Number | Publication Date |
|---|---|
| CN206517277U true CN206517277U (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621173493.XU Active CN206517277U (en) | 2016-10-25 | 2016-10-25 | The control circuit and Switching Power Supply of a kind of signal detection processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109976427A (en) * | 2019-04-24 | 2019-07-05 | 深圳英飞源技术有限公司 | A kind of power-supply system of low standby power loss |
-
2016
- 2016-10-25 CN CN201621173493.XU patent/CN206517277U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109976427A (en) * | 2019-04-24 | 2019-07-05 | 深圳英飞源技术有限公司 | A kind of power-supply system of low standby power loss |
| CN109976427B (en) * | 2019-04-24 | 2024-04-19 | 深圳英飞源技术有限公司 | Power supply system with low standby power consumption |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong city of Shenzhen province Baoan District two road Xixiang Street Gushu Xing Hui industrial plant workshop one or two, three (A, B, Xing Hui Science Park building C) Patentee after: Shenzhen Europe Lu Tong Electronic Limited by Share Ltd Address before: 518000 Guangdong, Shenzhen, Xixiang City, the town of the world on the road No. 111 Fuyuan Industrial City C7 building /C8 building Patentee before: Oulutong Electronic Co., Ltd., Shenzhen |
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| CP03 | Change of name, title or address |