CN206564538U - A kind of temperature control soft starting circuit - Google Patents
A kind of temperature control soft starting circuit Download PDFInfo
- Publication number
- CN206564538U CN206564538U CN201720040752.XU CN201720040752U CN206564538U CN 206564538 U CN206564538 U CN 206564538U CN 201720040752 U CN201720040752 U CN 201720040752U CN 206564538 U CN206564538 U CN 206564538U
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- soft starting
- connection
- starting 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.)
- Withdrawn - After Issue
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of temperature control soft starting circuit, including soft starting circuit, control feedback control loop, constant-current switch power source circuit, LED, inspection leakage resistance, the output end of constant-current switch power source circuit one connects LED and inspection leakage resistance is grounded again, another output end connection control feedback control loop of constant-current switch power source circuit, control feedback control loop connection soft starting circuit；The soft starting circuit includes electric capacity C1, diode D1, triode Q1, resistance R1, R3 and thermistor R2, soft starting circuit connection supply voltage Vcc, the colelctor electrode of the supply voltage Vcc connecting triodes Q1, the control feedback control loop includes optocoupler, first switch source current ring, second switch source current ring.The utility model soft-start time length preferably can play a protective role with the circuit of temperature height change to circuit, improve the job stability and reliability of soft starting circuit.
Description
【Technical field】
The utility model is related to the technical field of soft starting circuit, the temperature control provided especially for LED constant current driving power supply
The technical field of soft starting circuit.
【Background technology】
Soft start is one of starting protection of most critical in all kinds of power supplys, when circuit start, is quickly started in power supply
Electrical impact that portion's element is brought and thermal shock can cause power-fail or the lost of life when excessive than larger.In order to
Further reduce the harm for quickly starting and bringing at high temperature, this patent proposes the circuit varied with temperature a kind of startup time.
Majority soft startup of electric power technology is started using non-temperature association at present, therefore soft start reliable at normal temperatures
Design is possible to still less reliable at high temperature.
【Utility model content】
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of temperature control soft starting circuit, soft to open
Dynamic time length preferably can play a protective role with the circuit of temperature height change to circuit, improve soft starting circuit
Job stability and reliability.
To achieve the above object, the utility model proposes a kind of temperature control soft starting circuit, including soft starting circuit, control
Feedback control loop, constant-current switch power source circuit, LED, inspection leakage resistance, the output end of constant-current switch power source circuit one connection LED and
Inspection leakage resistance is grounded again, and another output end connection control feedback control loop of constant-current switch power source circuit, control feedback control loop connection is soft
Start-up circuit；The soft starting circuit includes electric capacity C1, diode D1, triode Q1, resistance R1, resistance R3 and thermistor
R2, soft starting circuit connection supply voltage Vcc, supply voltage Vcc passes through electric capacity C1 connections resistance R1 and thermistor in parallel
R2, resistance R1 in parallel and thermistor R2 are grounded；The colelctor electrode of the supply voltage Vcc connecting triodes Q1, triode Q1
Base stage be connected with electric capacity C1 negative pole, tie point be provided with the first test point；The emitter stage of the triode Q1 connects two poles
Pipe D1, diode D1 negative electrode are provided with the second test point, diode D1 series resistance R3, resistance R3 connection control feedback control loop；
The control feedback control loop includes optocoupler, first switch source current ring, second switch source current ring.
Preferably, the first switch source current ring connection resistance R4, resistance R4 series LED lamps.
Preferably, the resistance R3 connections first switch source current ring, constant-current switch power source connection optocoupler, light
Coupling connects second switch source current ring, second switch source current ring connection first switch source current ring.
Preferably, the constant-current switch power source line-to-ground connection.
The beneficial effects of the utility model：The utility model LED constant current driving power supply connect after have one section startup
Process, soft-start time length preferably can play a protective role with the circuit of temperature height change to circuit.To protect electricity
Sub- product is not hit, it is ensured that the normal work of circuit, improves the job stability and reliability of soft starting circuit.
Feature and advantage of the present utility model will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of connection circuit diagram of temperature control soft starting circuit of the utility model.
In figure：The test points of 1- first, the test points of 2- second, 3- soft starting circuits, 4- controls feedback control loop, 5- constant current switches
Power circuit, 6-LED lamps, 7- diode D1,8- triode Q1,9- electric capacity C1,10- resistance R1,11- thermistors R2,12- electricity
Hinder R3,13- inspection leakage resistance, 14- resistance R4,15- first switch source currents ring, 16- second switch source currents ring, 17- light
Coupling.
【Embodiment】
Refering to Fig. 1, the utility model, including soft starting circuit 3, control feedback control loop 4, constant-current switch power source circuit 5,
LED 6, inspection leakage resistance 13, the output end of constant-current switch power source circuit 5 one connection LED 6 and inspection leakage resistance 13 are grounded again, constant current
Another output end of Switching Power Supply circuit 5 connection control feedback control loop 4, the control connection soft starting circuit 3 of feedback control loop 4；It is described soft
Start-up circuit 3 includes electric capacity C1 9, diode D1 7, triode Q1 8, resistance R1 10, resistance R3 12 and thermistor R2
11, the connection of soft starting circuit 3 supply voltage Vcc, supply voltage Vcc connects the resistance R1 10 and heat of parallel connection by electric capacity C1 9
Quick resistance R2 11, resistance R1 10 and thermistor R2 11 in parallel is grounded；The supply voltage Vcc connecting triodes Q1 8
Colelctor electrode, triode Q1 8 base stage is connected with electric capacity C1 9 negative pole, and tie point is provided with the first test point 1；Described three
Pole pipe Q1 8 emitter stage connection diode D1 7, diode D1 7 negative electrode is provided with the second test point 2, and diode D1 7 connects
Resistance R3 12, resistance R3 12 connection control feedback control loop 4；The control feedback control loop 4 includes optocoupler 17, first switch power supply
Electric current loop 15, second switch source current ring 16.The first switch source current ring connection resistance R4 14, resistance R4 14 goes here and there
Join LED 6.The connection first switch source currents of resistance R3 12 ring 15, the connection optocoupler 17 of constant-current switch power source circuit 5, light
The connection second switch source current of coupling 17 ring 16, the connection first switch source current of second switch source current ring 16 ring 15.Institute
State the grounding connection of constant-current switch power source circuit 5.
Utility model works process：
In the course of the work, when power supply is started shooting, the first test point 1 is because electricity for a kind of temperature control soft starting circuit of the utility model
It is 0 to hold the voltages of C1 9, the high level close to Vcc is exported, so that the electricity of the second test point 2 namely diode D1 7 negative electrode
Pressure is higher, after injection feedback control loop, and the output current of power supply is minimum.As Vcc passes through R1 10 and R2 11 i.e. temperature-sensitive electricity
Resistance is charged to C1 9, and the voltage of the first test point 1 is gradually reduced, and causes the voltage of the second test point 2 also to reduce, so as to inject feedback
The signal of loop is less and less.So driving power supply output current constantly increases, and after final C1 9 is fully charged, Q1 8 ends,
Diode D1 7 is also switched off, and such soft starting circuit does not just produce influence after power initiation work on power supply.Here power supply is opened
The dynamic time was determined by the times charged of C1 9, and the RC network time that this time is made up of C1 9, R1 10, R2 11
Constant determines that only R2 11 is variable here, and temperature is higher, and the resistances of R2 11 are bigger, therefore the startup time is longer, so as to electricity
The impact in source is also just smaller.
The utility model, LED constant current driving power supply connect after have one section startup process, soft-start time length with
The circuit of temperature height change, preferably can play a protective role to circuit.To protect electronic product not to be hit, it is ensured that electricity
The normal work on road, improves the job stability and reliability of soft starting circuit.
It, to explanation of the present utility model, is limited of the present utility model that above-described embodiment, which is, any new to this practicality
Scheme after type simple transformation belongs to protection domain of the present utility model.
Claims (4)
1. a kind of temperature control soft starting circuit, it is characterised in that：Opened including soft starting circuit (3), control feedback control loop (4), constant current
Close power circuit (5), LED (6), inspection leakage resistance (13), the output end of constant-current switch power source circuit (5) one connection LED (6) and
Inspection leakage resistance (13) is grounded again, another output end connection control feedback control loop (4) of constant-current switch power source circuit (5), control feedback
Loop (4) connection soft starting circuit (3)；The soft starting circuit (3) includes electric capacity C1 (9), diode D1 (7), triode Q1
(8), resistance R1 (10), resistance R3 (12) and thermistor R2 (11), soft starting circuit (3) connection supply voltage Vcc, power supply electricity
Vcc is pressed to pass through the resistance R1 (10) and thermistor R2 (11) of electric capacity C1 (9) connections parallel connection, resistance R1 (10) in parallel and temperature-sensitive
Resistance R2 (11) is grounded；The colelctor electrode of the supply voltage Vcc connecting triodes Q1 (8), triode Q1 (8) base stage and electric capacity
C1 (9) negative pole is connected, and tie point is provided with the first test point (1)；The emitter stage connection diode D1 of the triode Q1 (8)
(7), diode D1 (7) negative electrode is provided with the second test point (2), and diode D1 (7) series resistance R3 (12), resistance R3 (12) connects
Connect control feedback control loop (4)；The control feedback control loop (4) includes optocoupler (17), first switch source current ring (15), second
Switch power supply current ring (16).
2. a kind of temperature control soft starting circuit as claimed in claim 1, it is characterised in that：The first switch source current ring connects
Connecting resistance R4 (14), resistance R4 (14) series LED lamp (6).
3. a kind of temperature control soft starting circuit as claimed in claim 1, it is characterised in that：Resistance R3 (12) connection first is opened
Powered-down ource electric current ring (15), constant-current switch power source circuit (5) connection optocoupler (17), optocoupler (17) connection second switch source current
Ring (16), second switch source current ring (16) connection first switch source current ring (15).
4. a kind of temperature control soft starting circuit as claimed in claim 1, it is characterised in that：The constant-current switch power source circuit (5)
Grounding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040752.XU CN206564538U (en) | 2017-01-13 | 2017-01-13 | A kind of temperature control soft starting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040752.XU CN206564538U (en) | 2017-01-13 | 2017-01-13 | A kind of temperature control soft starting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564538U true CN206564538U (en) | 2017-10-17 |
Family
ID=60028863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720040752.XU Withdrawn - After Issue CN206564538U (en) | 2017-01-13 | 2017-01-13 | A kind of temperature control soft starting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206564538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685204A (en) * | 2017-01-13 | 2017-05-17 | 杭州优特电源有限公司 | Temperature-control soft start circuit |
-
2017
- 2017-01-13 CN CN201720040752.XU patent/CN206564538U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685204A (en) * | 2017-01-13 | 2017-05-17 | 杭州优特电源有限公司 | Temperature-control soft start circuit |
| CN106685204B (en) * | 2017-01-13 | 2019-07-26 | 杭州优特电源有限公司 | A kind of temperature control soft starting circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104218558B (en) | Anti-surging high tension protection circuit | |
| CN205229344U (en) | Series connection arc fault detection circuitry | |
| CN204652337U (en) | A kind of single fiery power taking intelligent control switch | |
| CN105403790A (en) | Serially-connected arc fault detection circuit and serially-connected arc fault detection method | |
| CN102444603A (en) | Fan control circuit | |
| CN109256838A (en) | A kind of electric tool charger high temperature power-off control system | |
| CN206564538U (en) | A kind of temperature control soft starting circuit | |
| CN202818087U (en) | Starting circuit for high-voltage input switching power supply | |
| CN101977466B (en) | White light-emitting diode drive circuit | |
| CN104754800B (en) | A kind of control device of LED modules inrush current | |
| CN106685204B (en) | A kind of temperature control soft starting circuit | |
| CN102043413A (en) | Temperature control circuit | |
| CN105140997A (en) | Intelligent lamp charger of intelligent traffic system | |
| CN204738991U (en) | Fan control and protection circuit | |
| CN204652731U (en) | A kind of LED power with short-circuit protection | |
| CN204441858U (en) | A kind of temperature control circuit | |
| CN205754941U (en) | A kind of photovoltaic voltage stabilizing LED illumination lamp | |
| CN205039703U (en) | Intelligence step -down formula switching power supply | |
| CN203691701U (en) | Device for controlling input surge current of LED module | |
| CN203691703U (en) | Device for controlling surge current of LED module | |
| CN204496314U (en) | A kind of protection circuit of servo-driver | |
| CN211352552U (en) | LED lighting circuit with short-circuit protection function | |
| CN209818374U (en) | Intelligent temperature control circuit | |
| CN204719212U (en) | Battery electric quantity detects indicating circuit | |
| CN207219109U (en) | A kind of logic control circuit in LED emergency lights |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171017 Effective date of abandoning: 20190726 |