CN205082022U - Quick starting circuit of power - Google Patents
Quick starting circuit of power Download PDFInfo
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- CN205082022U CN205082022U CN201520869789.4U CN201520869789U CN205082022U CN 205082022 U CN205082022 U CN 205082022U CN 201520869789 U CN201520869789 U CN 201520869789U CN 205082022 U CN205082022 U CN 205082022U
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Abstract
The utility model relates to a quick starting circuit of power, including resistance R8, resistance R9, resistance R10, resistance R41, electric capacity C3, electric capacity C5, zener diode ZD2, diode D1, diode D2, NMOS pipe Q1 and electrolytic capacitor EC1, voltage VBUS is connected after the drain electrode of resistance R8 one end and NMOS pipe and the rectification, another termination resistance of resistance R8 R9 one end, the resistance R9 other end with electric capacity C3 one end and NMOS pipe Q1's grid is connected, NMOS pipe Q1's source electrode is connected with electric capacity C5's one end and the anodal of diode D1, diode D1's negative pole and resistance R10's one end are connected, the power supply pin VCC that IC is connected to resistance R10's the other end, electrolytic capacitor EC1's positive pole, stabilivolt diode ZD2's negative pole and diode D2's negative pole connects, the anodal of diode D2 is connected with resistance R41 one end, resistance R41's the other end is connected with transformer auxiliary winding's anode VA.
Description
Technical field
The utility model relates to Power Generation Road field, particularly relates to the start-up circuit of LED power, specifically a kind of power supply fast start circuit.
Background technology
Along with the fast development of LED industry, market requires more and more faster to the start-up time of LED lamp, the light fixture having specified to enter Europe in present CE need to meet be less than 0.5S start-up time, the single-stage start-up circuit that LED power is traditional cannot meet this requirement, two-stage starts the limitation of circuit itself, it can not be made to meet whole LED power chips, and a lot of IC itself is not again containing internal high pressure start-up performance, and the new startup circuit of form active demand one meets the requirement of startup fast.
Summary of the invention
The problems referred to above being prior art and existing to be solved in the utility model, aim to provide a kind of structure simple, components and parts are few, the power supply fast start circuit that cost is low.
For solving the problem, the utility model by the following technical solutions: power supply starts circuit fast, comprises resistance R8, resistance R9, resistance R10, resistance R41, electric capacity C3, electric capacity C5, voltage stabilizing didoe ZD2, diode D1, diode D2, NMOS tube Q1 and electrochemical capacitor EC1, is characterized in that the drain electrode of described resistance R8 one end and NMOS tube is connected with rectified voltage VBUS, described resistance R8 other end connecting resistance R9 one end, the described resistance R9 other end with, the grid of described electric capacity C3 one end and NMOS tube Q1 connects, and the source electrode of described NMOS tube Q1 is connected with the positive pole of one end of electric capacity C5 and diode D1, and the negative pole of described diode D1 is connected with one end of resistance R10, the other end of described resistance R10, the positive pole of electrochemical capacitor EC1, the energization pins VCC that the negative pole of voltage-stabiliser tube diode ZD2 and the negative pole of diode D2 connect IC connects, the positive pole of described diode D2 is connected with resistance R41 one end, the other end and the transformer of described resistance R41 assist the anode VA of winding to be connected, the positive pole of described voltage stabilizing didoe ZD2, the other end of electric capacity C3, the other end of electric capacity C5, the negative pole of electrochemical capacitor EC1 and the equal ground connection of positive pole of voltage stabilizing didoe ZD2.
Power supply fast start circuit of the present utility model, after mains switch is opened, the voltage VBUS of AC voltage after rectifier bridge is by resistance R8, resistance R9 charges to electric capacity C3, the Q1 conducting when the voltage on electric capacity C3 reaches the door capable of being opened voltage limit of NMOS tube Q1, VBUS voltage is charged to electrochemical capacitor EC1, when the voltage on electrochemical capacitor EC1 reaches the cut-in voltage of IC by NMOS tube Q1, diode D1 and resistance R10, IC starts, power work.When the voltage on electric capacity C5 be charged to make NMOS tube Q1VGS voltage lower than NMOS tube door capable of being opened voltage limit time, NMOS tube Q1 close.Electric capacity C3 is configured the very little patch capacitor of capacitance, and NMOS tube Q1 can transient switching, and design less by the resistance of resistance R10, the voltage VCC on EC1 can reach rapidly the cut-in voltage of IC simultaneously.
Visible, power supply fast start circuit of the present utility model, structure is simple, and components and parts are few, with low cost, reliable, and reaches the moment quick effect started.
As improvement of the present utility model, be also provided with voltage-stabiliser tube ZD1 between the grid source electrode of described NMOS tube Q1, and the described negative pole of voltage-stabiliser tube ZD1 is connected with the grid of NMOS tube Q1, the described positive pole of voltage-stabiliser tube ZD1 is connected with the source electrode of NMOS tube Q1.Voltage-stabiliser tube ZD1 can voltage on clamped electric capacity C3, prevents the voltage on electric capacity C3 from exceeding NMOS tube VGS maximum voltage thus puncturing NMOS tube.
As further improvement of the utility model, described voltage-stabiliser tube ZD1 adopts BZT52C15 voltage-stabiliser tube.Described NMOS tube Q1 adopts TK4A60DBMOS pipe.Described voltage-stabiliser tube ZD2 adopts BZT52C20 voltage-stabiliser tube.Described diode D1 and diode D2 adopts 1N4148W diode.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model power supply fast start circuit.
Embodiment
With reference to Fig. 1, power supply of the present utility model starts circuit fast, comprises resistance R8, resistance R9, resistance R10, resistance R41, electric capacity C3, electric capacity C5, voltage stabilizing didoe ZD1, voltage stabilizing didoe ZD2, diode D1, diode D2, NMOS tube Q1 and electrochemical capacitor EC1, the drain electrode of described resistance R8 one end and NMOS tube is connected with rectified voltage VBUS, described resistance R8 other end connecting resistance R9 one end, the described resistance R9 other end and voltage-stabiliser tube ZD1 negative pole, the grid of described electric capacity C3 one end and NMOS tube Q1 connects, and the source electrode of described NMOS tube Q1 is connected with the positive pole of one end of electric capacity C5 and diode D1, and the negative pole of described diode D1 is connected with one end of resistance R10, the other end of described resistance R10, the positive pole of electrochemical capacitor EC1, the energization pins VCC that the negative pole of voltage-stabiliser tube diode ZD2 and the negative pole of diode D2 connect IC connects, the positive pole of described diode D2 is connected with resistance R41 one end, the other end and the transformer of described resistance R41 assist the anode VA of winding to be connected, the positive pole of described voltage stabilizing didoe ZD1, the positive pole of voltage stabilizing didoe ZD2, the other end of electric capacity C3, the other end of electric capacity C5, the negative pole of electrochemical capacitor EC1 and the equal ground connection of positive pole of voltage stabilizing didoe ZD2.
Described voltage-stabiliser tube ZD1 adopts BZT52C15 voltage-stabiliser tube.Described NMOS tube Q1 adopts TK4A60DBMOS pipe.Described voltage-stabiliser tube ZD2 adopts BZT52C20 voltage-stabiliser tube.Described diode D1 and diode D2 adopts 1N4148W diode.
Operation principle of the present utility model is as follows: after mains switch is opened, the voltage VBUS of AC voltage after rectifier bridge is by resistance R8, resistance R9 charges to electric capacity C3, the Q1 conducting when the voltage on electric capacity C3 reaches the door capable of being opened voltage limit of NMOS tube Q1, VBUS voltage is charged to electrochemical capacitor EC1 by NMOS tube Q1, diode D1 and resistance R10, when the voltage on electrochemical capacitor EC1 reaches the cut-in voltage of IC, IC starts, power work.When the voltage on electric capacity C5 be charged to make NMOS tube Q1VGS voltage lower than NMOS tube door capable of being opened voltage limit time, NMOS tube Q1 close.Electric capacity C3 is configured the very little patch capacitor of capacitance, and NMOS tube Q1 can transient switching, and design less by the resistance of resistance R10, the voltage VCC on EC1 can reach rapidly the cut-in voltage of IC simultaneously.Voltage-stabiliser tube ZD1 can voltage on clamped electric capacity C3, prevents the voltage on electric capacity C3 from exceeding NMOS tube VGS maximum voltage thus puncturing NMOS tube.Circuit of the present utility model can accomplish that in full voltage input range being less than 0.2S opens, and easily can meet the requirement that 0.5S starts.
It is understood that above-described embodiment is just to explanation of the present utility model, instead of to restriction of the present utility model, any utility model do not exceeded in the utility model spirit is created, and all falls within protection range of the present utility model.
Claims (6)
1. power supply fast start circuit, comprises resistance R8, resistance R9, resistance R10, resistance R41, electric capacity C3, electric capacity C5, voltage stabilizing didoe ZD2, diode D1, diode D2, NMOS tube Q1 and electrochemical capacitor EC1, is characterized in that the drain electrode of described resistance R8 one end and NMOS tube is connected with rectified voltage VBUS, described resistance R8 other end connecting resistance R9 one end, the described resistance R9 other end with, the grid of described electric capacity C3 one end and NMOS tube Q1 connects, and the source electrode of described NMOS tube Q1 is connected with the positive pole of one end of electric capacity C5 and diode D1, and the negative pole of described diode D1 is connected with one end of resistance R10, the other end of described resistance R10, the positive pole of electrochemical capacitor EC1, the energization pins VCC that the negative pole of voltage-stabiliser tube diode ZD2 and the negative pole of diode D2 connect IC connects, the positive pole of described diode D2 is connected with resistance R41 one end, the other end and the transformer of described resistance R41 assist the anode VA of winding to be connected, the positive pole of described voltage stabilizing didoe ZD2, the other end of electric capacity C3, the other end of electric capacity C5, the negative pole of electrochemical capacitor EC1 and the equal ground connection of positive pole of voltage stabilizing didoe ZD2.
2. power supply fast start circuit as claimed in claim 1, it is characterized in that also being provided with voltage-stabiliser tube ZD1 between the grid source electrode of described NMOS tube Q1, further, the described negative pole of voltage-stabiliser tube ZD1 is connected with the grid of NMOS tube Q1, and the described positive pole of voltage-stabiliser tube ZD1 is connected with the source electrode of NMOS tube Q1.
3. power supply fast start circuit as claimed in claim 1, is characterized in that described voltage-stabiliser tube ZD1 adopts BZT52C15 voltage-stabiliser tube.
4. power supply fast start circuit as claimed in claim 1, is characterized in that described NMOS tube Q1 adopts TK4A60DBMOS pipe.
5. power supply fast start circuit as claimed in claim 1, is characterized in that described voltage-stabiliser tube ZD2 adopts BZT52C20 voltage-stabiliser tube.
6. power supply fast start circuit as claimed in claim 1, is characterized in that described diode D1 and diode D2 adopts 1N4148W diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869789.4U CN205082022U (en) | 2015-11-04 | 2015-11-04 | Quick starting circuit of power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869789.4U CN205082022U (en) | 2015-11-04 | 2015-11-04 | Quick starting circuit of power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205082022U true CN205082022U (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520869789.4U Active CN205082022U (en) | 2015-11-04 | 2015-11-04 | Quick starting circuit of power |
Country Status (1)
| Country | Link |
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| CN (1) | CN205082022U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105323925A (en) * | 2015-11-04 | 2016-02-10 | 浙江榆阳电子有限公司 | Power supply quick starting circuit |
| CN108093515A (en) * | 2017-12-16 | 2018-05-29 | 无锡昌至盛机械制造有限公司 | A kind of high-voltage starting circuit structure |
| CN108112120A (en) * | 2017-12-16 | 2018-06-01 | 无锡昌至盛机械制造有限公司 | A kind of high-voltage high-speed start-up circuit of low-power consumption |
-
2015
- 2015-11-04 CN CN201520869789.4U patent/CN205082022U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105323925A (en) * | 2015-11-04 | 2016-02-10 | 浙江榆阳电子有限公司 | Power supply quick starting circuit |
| CN108093515A (en) * | 2017-12-16 | 2018-05-29 | 无锡昌至盛机械制造有限公司 | A kind of high-voltage starting circuit structure |
| CN108112120A (en) * | 2017-12-16 | 2018-06-01 | 无锡昌至盛机械制造有限公司 | A kind of high-voltage high-speed start-up circuit of low-power consumption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Power supply quick starting circuit Effective date of registration: 20180627 Granted publication date: 20160309 Pledgee: Bank of Hangzhou Limited by Share Ltd. Tongxiang branch Pledgor: ZHEJIANG YUYANG ELECTRONICS CO.,LTD. Registration number: 2018330000148 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220725 Granted publication date: 20160309 Pledgee: Bank of Hangzhou Limited by Share Ltd. Tongxiang branch Pledgor: ZHEJIANG YUYANG ELECTRONICS CO.,LTD. Registration number: 2018330000148 |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 656, Tongde Road, Tongxiang Economic Development Zone, Tongxiang City, Jiaxing City, Zhejiang Province, 314500 Patentee after: Zhejiang Yuyang Electronics Co., Ltd. Address before: No. 656, Tongde Road, Tongxiang Economic Development Zone, Tongxiang City, Jiaxing City, Zhejiang Province, 314500 Patentee before: ZHEJIANG YUYANG ELECTRONICS CO.,LTD. |