CN205883631U - Starting circuit in twinkling of an eye after outage - Google Patents
Starting circuit in twinkling of an eye after outage Download PDFInfo
- Publication number
- CN205883631U CN205883631U CN201620626066.6U CN201620626066U CN205883631U CN 205883631 U CN205883631 U CN 205883631U CN 201620626066 U CN201620626066 U CN 201620626066U CN 205883631 U CN205883631 U CN 205883631U
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- China
- Prior art keywords
- module
- circuit
- feedback
- power
- outfan
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- 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.)
- Withdrawn - After Issue
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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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model discloses a starting circuit in twinkling of an eye after outage, including power input module, the PFC circuit, switching power supply module, feedback circuit, load output terminal, power input module is connected in order to realize that power factor corrects to the input of PFC circuit, the transform of output in order to realize voltage of PFC circuit is connected to switching power supply module's input, load output terminal linked switch power module's output is in order to supply power to external load, feedback circuit linked switch power module is with to the accurate steady voltage of switch power module output signal, still including the discharge control module of the feedback circuit medium voltage that is used for releasing when starting in the twinkling of an eye after the outage, the voltage of savings is released through the discharge control module who is connected with load output terminal completely among the feedback circuit, but make starting circuit quick start in the start -up course once more after the outage, the response between starting circuit and the load time is shortened.
Description
Technical field
This utility model relates to a kind of start-up circuit, can moment start-up circuit after particularly a kind of power-off.
Background technology
In the start-up circuit of output high pressure, power supply the voltage inputted, current shaping are improved merit with realization by pfc circuit
Rate factor, realizes the conversion of DC voltage, it is provided that loaded work piece, power switching module afterwards in being input to power switching module
In cutting-off process, the electric capacity connected in the feedback circuit of power switching module cannot discharge completely, after a loss of power cannot cause
Moment starts again, it is impossible to quickly respond, it would therefore be desirable to improve this start-up circuit.
Utility model content
For solving above-mentioned technical problem, the purpose of this utility model is to provide moment start-up circuit after a kind of power-off.
The technical solution adopted in the utility model is:
Moment start-up circuit after a kind of power-off, including Power Entry Module, pfc circuit, switch power module, feedback electricity
Road, load outputs, the input of this pfc circuit connects Power Entry Module to realize power factor correction, this Switching Power Supply
The input of module connects the outfan of pfc circuit to realize the conversion of voltage, this load outputs connecting valve power module
Outfan to power to external loading；This feedback circuit includes input, outfan and feedback end, the input of feedback circuit
The outfan of end connecting valve power module, the outfan of feedback circuit connects load outputs, and the feedback end of feedback circuit is even
Connect the feedback end of switch power module；Also include releasing the electric discharge control of voltage in feedback circuit when moment after a loss of power starts
Molding block, this control of discharge module includes input, outfan and controls end, and the input of this control of discharge module connects negative
Carrying outfan, the control end of control of discharge module connects Power Entry Module, the control end output head grounding of control of discharge module.
Described Power Entry Module is provided with for being galvanic rectification by the AC conversion in Power Entry Module
Bridge chip.
Described feedback circuit includes feedback module and energy-storage module；This feedback module includes input, outfan, feedback
End, this energy-storage module includes input, outfan, and the input of this feedback module connects the input of feedback circuit, storage respectively
The input of energy module, the outfan of this feedback module connects the outfan of the outfan of feedback circuit, energy-storage module respectively, should
The feedback end of feedback module connects the feedback end of feedback circuit.
Described energy-storage module includes polar capacitor C1, polar capacitor C2, inductance L1, and the input of feedback circuit connects respectively
The positive pole of polar capacitor C2, one end of inductance L1, the other end of this inductance L1 connects the positive pole of polar capacitor C1, described negative respectively
Carry outfan, the minus earth of this polar capacitor C1, the minus earth of this polar capacitor C2.
Described control of discharge module includes photoelectrical coupler OPT2, controllable silicon SCR, the input of this photoelectrical coupler OPT2
Connecting Power Entry Module, the outfan of this photoelectrical coupler OPT2 connects the gate pole of controllable silicon SCR, the sun of this controllable silicon SCR
Pole connects the outfan of feedback circuit, the minus earth of this controllable silicon SCR.
The beneficial effects of the utility model:
After this utility model power-off, moment start-up circuit connects control of discharge module at load outputs, and start-up circuit is in
During duty, Power Entry Module turns on to control of discharge module for power supply, photoelectrical coupler OPT2 so that controllable silicon SCR
Gate pole is in electronegative potential, and controllable silicon SCR is ended, and whole start-up circuit normally works；When start-up circuit turns off, in feedback circuit
Electric capacity cannot discharge completely, and Power Entry Module is no longer to control of discharge module for power supply, and photoelectrical coupler OPT2 ends so that can
The gate pole of control silicon SCR is in high potential, and controllable silicon SCR turns on, in feedback circuit electric capacity C1, electric capacity C2 the voltage of savings by with
The control of discharge module that load outputs connects is released completely, will not be due to during making start-up circuit be again started up after a loss of power
Feedback circuit electric capacity puts aside voltage and cannot quickly start, decrease the response time between start-up circuit and load.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further.
Fig. 1 is the schematic diagram of this utility model start-up circuit.
Fig. 2 is the circuit diagram of this utility model start-up circuit Power Entry Module.
Fig. 3 is the circuit diagram of this utility model start-up circuit pfc circuit.
Fig. 4 is the circuit diagram of this utility model start-up circuit switch power module.
Fig. 5 is the circuit diagram of this utility model start-up circuit feedback circuit.
Fig. 6 is the circuit diagram of this utility model start-up circuit control of discharge module.
Detailed description of the invention
As it is shown in figure 1, this utility model start-up circuit, including Power Entry Module 1, pfc circuit 2, switch power module
3, feedback circuit 4, load outputs 5, this circuit can be applicable to multiple LED series connection driving, herein load outputs output+
90V voltage is that the LED of series connection is powered, and in order to make start-up circuit can start moment after shut-off, this start-up circuit sets up one
Charge/discharge control circuit 6, the input of this control of discharge module 6 connects load outputs 5, control end connects Power Entry Module 1,
Output head grounding.
Power Entry Module 1 connects the input of pfc circuit 2, as in figure 2 it is shown, Power Entry Module 1 is provided with for inciting somebody to action
AC conversion in Power Entry Module 1 is galvanic rectifier bridge chip 11, Power Entry Module 1 incoming transport electricity, hands over
Stream electricity is input to rectifier bridge chip 11 after electric capacity, inductor filter, and rectified bridge chip 11 is rectified into unidirectional current, the present embodiment
Middle rectifier bridge chip 11 selects DB107 chip.
AC conversion is to be input to pfc circuit 2 after unidirectional current by Power Entry Module 1, as it is shown on figure 3, pfc circuit 2
Unidirectional current is carried out power factor correction, improves power factor.
Then, pfc circuit 2 by+400V DC supply input to switch power module 3, as shown in Figure 4, Figure 5, Switching Power Supply
It is provided with switching power source chip in module 3, the present embodiment is selected OB2263 chip, the outfan of switch power module 3 connect
Load outputs 5 to power to external loading, the outfan of input connecting valve power module 3 of feedback circuit 4, outfan
Connecting load outputs 5, the feedback end of feedback end connecting valve power module 3, the feedback end of switch power module 3 is herein
The feedback interface of OB2263 chip, in switch power module 3 ,+400V voltage signal passes through voltage transformation, rectification, filtering, then
Through switch power module 3 coordinate with feedback circuit 4 carry out accurate voltage stabilizing after obtain+90V voltage signal and export load output
End 5, feedback circuit 4 includes feedback module 41 and energy-storage module 42；This feedback module 41 includes input, outfan, feedback
End, this energy-storage module 42 includes input, outfan, and the input of this feedback module 41 connects the input of feedback circuit 4 respectively
End, the input of energy-storage module 42, the outfan of this feedback module 41 connects the outfan of feedback circuit 4, energy-storage module respectively
The outfan of 42, the feedback end of this feedback module 41 connects the feedback end of feedback circuit 4, and in the design, feedback circuit 4 is concrete
Circuit structure is:
Energy-storage module 42 includes inductance L1, polar capacitor C1, polar capacitor C2, and feedback module 41 includes photoelectrical coupler
OPT1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity C3, electric capacity C4, controlled stabilivolt ZD1；This feedback electricity
The input on road 4 connects one end of resistance R1, the positive pole of polar capacitor C2, one end of inductance L1 respectively；Another of this inductance L1
End connects the positive pole of polar capacitor C1, described load outputs 5, one end of resistance R2 respectively；The negative pole of this polar capacitor C1 connects
Ground；The minus earth of this polar capacitor C2；The other end of this resistance R2 connects one end of resistance R3；The other end of this resistance R3 divides
Lian Jie one end of resistance R5, the reference edge of controlled stabilivolt ZD1, one end of electric capacity C3；The anode of this photoelectrical coupler OPT1
Connect the other end of resistance R1, one end of resistance R4 respectively；The negative electrode of this photoelectrical coupler OPT1 connects the another of resistance R4 respectively
One end, the other end of electric capacity C3, the negative electrode of controlled stabilivolt ZD1；The plus earth of this controlled stabilivolt ZD1；This resistance R5's
Other end ground connection；The colelctor electrode of this photoelectrical coupler OPT1 connects one end of electric capacity C4, the feedback of switch power module 3 respectively
End；The emitter stage of this photoelectrical coupler OPT1 connects the other end and the ground connection of electric capacity C4.
In order to the voltage at electric capacity C1, electric capacity C2 put aside when off by start-up circuit of effectively releasing, as shown in Figure 6,
The concrete structure of the control of discharge module 6 of the design is:
Described control of discharge module 6 includes photoelectrical coupler OPT2, controllable silicon SCR, resistance R6, resistance R7, resistance R8, electricity
Resistance R9, diode D1, diode D2, polar capacitor C5, electric capacity C6；The anode of this photoelectrical coupler OPT2 connects the one of resistance R9
End；The other end of this resistance R9 connects one end of resistance R8；The other end of this resistance R8 connects one end of electric capacity C6, two poles respectively
The negative electrode of pipe D2, the negative electrode of diode D1；The anode of this diode D1 connects the exchange positive pole of Power Entry Module 1；This photoelectricity
The negative electrode of bonder OPT2 connect respectively the other end of electric capacity C6, the anode of diode D6, Power Entry Module 1 exchange bear
Pole；The colelctor electrode of this photoelectrical coupler OPT2 connects one end of resistance R7, the positive pole of polar capacitor C5, controllable silicon SCR respectively
Gate pole；The other end of this resistance R7 connects one end of resistance R6, load outputs 5 respectively；The other end of this resistance R6 connects can
The anode of control silicon SCR；The emitter stage of this photoelectrical coupler OPT2 connect the negative electrode of polar capacitor C5, the negative electrode of controllable silicon SCR and
Ground connection.
When start-up circuit is in running order, Power Entry Module 1 is powered to control of discharge module 6, photoelectrical coupler
OPT2 turns on so that the gate pole of controllable silicon SCR is in electronegative potential, and controllable silicon SCR is ended, and whole start-up circuit normally works；When
Start-up circuit turns off, and the electric capacity C1 in feedback circuit 4, electric capacity C2 cannot discharge completely, and Power Entry Module 1 is no longer to electric discharge control
Molding block 6 is powered, and photoelectrical coupler OPT2 ends so that the gate pole of controllable silicon SCR is in high potential, and controllable silicon SCR turns on, instead
In current feed circuit electric capacity C1, electric capacity C2, the voltage of savings is released completely by the control of discharge module 6 being connected with load outputs 5,
Cannot quickly will not open owing to feedback circuit 4 electric capacity putting aside voltage during making start-up circuit be again started up after a loss of power
Dynamic, affect the response time between start-up circuit and load.
The foregoing is only preferred embodiments of the present utility model, this utility model is not limited to above-mentioned embodiment party
Formula, if with essentially identical means realize the technical scheme of this utility model purpose broadly fall into protection domain of the present utility model it
In.
Claims (5)
1. a moment start-up circuit after power-off, including Power Entry Module (1), pfc circuit (2), switch power module (3),
Feedback circuit (4), load outputs (5), the input of this pfc circuit (2) connect Power Entry Module (1) with realize power because of
Number is corrected, and the input of this switch power module (3) connects the outfan of pfc circuit (2) to realize the conversion of voltage, this load
The outfan of outfan (5) connecting valve power module (3) is to power to external loading；This feedback circuit (4) include input,
Outfan and feedback end, the outfan of input connecting valve power module (3) of feedback circuit (4), feedback circuit (4)
Outfan connects load outputs (5), the feedback end of feedback end connecting valve power module (3) of feedback circuit (4)；Its feature
It is: the control of discharge module (6) of voltage in the feedback circuit (4) that also includes releasing when moment after a loss of power starts, this is put
Electric control module (6) includes input, outfan and controls end, and it is defeated that the input of this control of discharge module (6) connects load
Going out end (5), the control end of control of discharge module (6) connects Power Entry Module (1), and the control end of control of discharge module (6) is defeated
Go out to hold ground connection.
Moment start-up circuit after a kind of power-off the most according to claim 1, it is characterised in that: described Power Entry Module
(1) it is provided with for being galvanic rectifier bridge chip (11) by the AC conversion in Power Entry Module (1).
Moment start-up circuit after a kind of power-off the most according to claim 2, it is characterised in that: described feedback circuit (4) wraps
Include feedback module (41) and energy-storage module (42)；This feedback module (41) includes input, outfan, feedback end, this energy storage
Module (42) includes input, outfan, the input of this feedback module (41) connect respectively the input of feedback circuit (4),
The input of energy-storage module (42), the outfan of this feedback module (41) connects the outfan of feedback circuit (4), energy storage mould respectively
The outfan of block (42), the feedback end of this feedback module (41) connects the feedback end of feedback circuit (4).
Moment start-up circuit after a kind of power-off the most according to claim 3, it is characterised in that: described energy-storage module (42) wraps
Including polar capacitor C1, polar capacitor C2, inductance L1, the input of feedback circuit (4) connects the positive pole of polar capacitor C2, electricity respectively
One end of sense L1, the other end of this inductance L1 connects the positive pole of polar capacitor C1, described load outputs (5), this polarity respectively
The minus earth of electric capacity C1, the minus earth of this polar capacitor C2.
Moment start-up circuit after a kind of power-off the most according to claim 3, it is characterised in that: described control of discharge module
(6) including photoelectrical coupler OPT2, controllable silicon SCR, the input of this photoelectrical coupler OPT2 connects Power Entry Module (1),
The outfan of this photoelectrical coupler OPT2 connects the gate pole of controllable silicon SCR, and the anode of this controllable silicon SCR connects feedback module (41)
Outfan, the minus earth of this controllable silicon SCR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626066.6U CN205883631U (en) | 2016-06-21 | 2016-06-21 | Starting circuit in twinkling of an eye after outage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626066.6U CN205883631U (en) | 2016-06-21 | 2016-06-21 | Starting circuit in twinkling of an eye after outage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205883631U true CN205883631U (en) | 2017-01-11 |
Family
ID=57691762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620626066.6U Withdrawn - After Issue CN205883631U (en) | 2016-06-21 | 2016-06-21 | Starting circuit in twinkling of an eye after outage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205883631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979659A (en) * | 2016-06-21 | 2016-09-28 | 卫星电子（中山）有限公司 | Instantaneous starting circuit after power failure |
-
2016
- 2016-06-21 CN CN201620626066.6U patent/CN205883631U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979659A (en) * | 2016-06-21 | 2016-09-28 | 卫星电子（中山）有限公司 | Instantaneous starting circuit after power failure |
| CN105979659B (en) * | 2016-06-21 | 2017-11-07 | 卫星电子（中山）有限公司 | Moment start-up circuit after one kind power-off |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170111 Effective date of abandoning: 20171107 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170111 Effective date of abandoning: 20171107 |