CN207835348U - The start-up circuit of quick low-power consumption - Google Patents
The start-up circuit of quick low-power consumption Download PDFInfo
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- CN207835348U CN207835348U CN201721758916.9U CN201721758916U CN207835348U CN 207835348 U CN207835348 U CN 207835348U CN 201721758916 U CN201721758916 U CN 201721758916U CN 207835348 U CN207835348 U CN 207835348U
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- diode
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- power consumption
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Abstract
The utility model is related to electronic technology fields, specially a kind of start-up circuit of quick low-power consumption, it can be achieved at the same time quickly startup and low-power consumption, it includes resistance R1 and resistance R2, the resistance R1 connects high-voltage power supply HV with the one end the resistance R2, the base stage of the resistance R1 other end connecting triodes Q1, the anode of diode D2, the collector of the triode Q1 connects the resistance R2 other ends, the collector of triode Q2, one end emitter connection capacitance C1 of the triode Q2, the cathode of diode D1, power supply VCC, the capacitance C1 other ends and diode D1 other ends ground connection, the anode of the cathode connection diode D3 of the diode D2, the cathode of the diode D3 is the Enable Pin of IC driving chips.
Description
Technical field
The utility model is related to electronic technology field, specially a kind of start-up circuit of quick low-power consumption.
Background technology
Current high-voltage starting circuit starts speed and is contradicted soon with low in energy consumption, i.e. startup speed is fast, corresponding
Power consumption can also increase, the driving IC chip such as in LED lamp, although start speed become faster, the power consumption of itself
Increase, if lower power consumption, starting speed also can be corresponding slack-off.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of start-up circuit of quick low-power consumption, can be simultaneously
Realize quickly startup and low-power consumption.
Its technical solution is such：A kind of start-up circuit of quick low-power consumption, which is characterized in that it include resistance R1 and
Resistance R2, the resistance R1 connect high-voltage power supply HV with the one end the resistance R2, the resistance R1 other end connecting triodes Q1's
The anode of base stage, diode D2, the collector of the triode Q1 connect the current collection of the resistance R2 other ends, triode Q2
Pole, one end emitter connection capacitance C1 of the triode Q2, the cathode of diode D1, power supply VCC, the capacitance C1 other ends
It is grounded with the diode D1 other ends, the anode of the cathode connection diode D3 of the diode D2, the diode D3's
Cathode is the Enable Pin of IC driving chips.
It is further characterized by the diode D1 is zener diode.
After the circuit of the utility model, high-voltage power supply HV is by giving capacitance C1 quick charges, when the electricity at the both ends capacitance C1
Operating voltage VCC, the IC driving chip that pressure reaches IC driving chips starts, and at this moment triode Q1 and triode Q2 shutdowns, enter
Low power consumpting state, while realizing quickly startup and low-power consumption.
Description of the drawings
Fig. 1 is the utility model circuit diagram.
Specific implementation mode
As shown in Figure 1, a kind of start-up circuit of quick low-power consumption comprising resistance R1 and resistance R2, resistance R1 and resistance
The one end R2 connects high-voltage power supply HV, the base stage of resistance R1 other end connecting triodes Q1, the anode of diode D2, the collection of triode Q1
Electrode connects the collector of the resistance R2 other ends, triode Q2, one end emitter connection capacitance C1 of triode Q2, diode D1
Cathode, power supply VCC, the capacitance C1 other ends and diode D1 other ends ground connection, the cathode connection diode D3's of diode D2
Anode, the cathode of diode D3 are the Enable Pin Enable of IC driving chips, and wherein diode D1 is zener diode.
Operation principle is as described below：When beginning, capacitance C1 both end voltages are 0V, and IC driving chips do not work, with the time
Passage, high-voltage power supply HV gives capacitance C1 quick charges by resistance R1, diode Q1, diode Q2, and electric current passes through three poles
Pipe Q1, triode Q2 are amplified, when the voltage at the both ends capacitance C1 reaches the operating voltage VCC of IC driving chips（VCC drives to IC
Dynamic chip power supply）, after IC driving chips start, Enable Pin Enable is dragged down, at this moment triode Q1, triode Q2 shutdowns,
Start-up circuit completes startup work, into low power consumpting state（Power consumption is HV2/ R1, ignores diode drop）.Voltage stabilizing in figure
The effect of diode D1 starting voltage amplitude limits, protection voltage are no more than the maximum working voltage of IC driving chips.Diode D2 and two
Pole pipe D3 ensures that the voltage of Enable Pin Enable is no more than VCC.
Claims (2)
1. a kind of start-up circuit of quick low-power consumption, which is characterized in that it includes resistance R1 and resistance R2, the resistance R1 and institute
State the one end resistance R2 connection high-voltage power supply HV, the base stage of the resistance R1 other end connecting triodes Q1, the anode of diode D2, institute
The collector for stating triode Q1 connects the collector of the resistance R2 other ends, triode Q2, the emitter of the triode Q2
Connect the one end capacitance C1, the cathode of diode D1, power supply VCC, the capacitance C1 other ends and another terminations of diode D1
The cathode on ground, the anode of the cathode connection diode D3 of the diode D2, the diode D3 is the enabled of IC driving chips
End.
2. a kind of start-up circuit of quick low-power consumption according to claim 1, which is characterized in that the diode D1 is steady
Press diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721758916.9U CN207835348U (en) | 2017-12-16 | 2017-12-16 | The start-up circuit of quick low-power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721758916.9U CN207835348U (en) | 2017-12-16 | 2017-12-16 | The start-up circuit of quick low-power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835348U true CN207835348U (en) | 2018-09-07 |
Family
ID=63387641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721758916.9U Expired - Fee Related CN207835348U (en) | 2017-12-16 | 2017-12-16 | The start-up circuit of quick low-power consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023472A (en) * | 2017-12-16 | 2018-05-11 | 无锡昌至盛机械制造有限公司 | A kind of start-up circuit of quick low-power consumption |
-
2017
- 2017-12-16 CN CN201721758916.9U patent/CN207835348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023472A (en) * | 2017-12-16 | 2018-05-11 | 无锡昌至盛机械制造有限公司 | A kind of start-up circuit of quick low-power consumption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20181216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |