CN208063506U - The high-voltage high-speed start-up circuit of low-power consumption - Google Patents
The high-voltage high-speed start-up circuit of low-power consumption Download PDFInfo
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- CN208063506U CN208063506U CN201721758917.3U CN201721758917U CN208063506U CN 208063506 U CN208063506 U CN 208063506U CN 201721758917 U CN201721758917 U CN 201721758917U CN 208063506 U CN208063506 U CN 208063506U
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- resistance
- capacitance
- diode
- voltage
- switch pipe
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Abstract
The utility model is related to electronic technology fields, the high-voltage high-speed start-up circuit of specially a kind of 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 one end the resistance R1 and the one end resistance R2 are all connected with high-voltage power supply HV, the one end the resistance R1 other ends connection capacitance C0, the cathode of diode D2, the grid of NMOS switch pipe Q1, and the Enable Pin that the node is IC driving chips, the anode of the diode D2, the other end of capacitance C0 is grounded, the drain electrode of the NMOS switch pipe Q1 connects the resistance R2 other ends, one end source electrode connection capacitance C1 of the NMOS switch pipe Q1, the cathode of diode D1, power supply VCC, the anode of the diode D1, the capacitance C1 other ends are grounded.
Description
Technical field
The utility model is related to electronic technology field, the high-voltage high-speed start-up circuit of specially a kind of 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 high-voltage high-speed start-up circuit of low-power consumption, can
Quickly startup and low-power consumption are realized simultaneously.
Its technical solution is such：A kind of high-voltage high-speed start-up circuit of low-power consumption, which is characterized in that it includes resistance
R1 and resistance R2, the one end the resistance R1 and the one end resistance R2 are all connected with high-voltage power supply HV, and the resistance R1 other ends connect capacitance
The one end C0, the cathode of diode D2, NMOS switch pipe Q1 grid, and the node be IC driving chips Enable Pin, described two
The anode of pole pipe D2, the other end ground connection of capacitance C0, the drain electrode of the NMOS switch pipe Q1 connect the resistance R2 other ends, institute
State source electrode connection capacitance C1 one end of NMOS switch pipe Q1, the cathode of diode D1, power supply VCC, the anode of the diode D1,
The capacitance C1 other ends are grounded.
After the circuit of the utility model, high-voltage power supply HV, which is charged by resistance R1 to capacitance C1, makes the both ends capacitance C1
Voltage quickly reaches the operating voltage VCC of IC driving chips, and after IC driving chips start, the Q1 shutdowns of NMOS switch pipe enter
Low power consumpting state, to realize quickly startup and low-power consumption simultaneously.
Description of the drawings
Fig. 1 is the utility model circuit diagram.
Specific implementation mode
As shown in Figure 1, the high-voltage high-speed start-up circuit of a kind of low-power consumption comprising resistance R1 and resistance R2, resistance R1 mono-
End and the one end resistance R2 are all connected with high-voltage power supply HV, and the one end resistance R1 other ends connection capacitance C0, the cathode of diode D2, NMOS are opened
The grid of pipe Q1 is closed, and the Enable Pin that the node is IC driving chips, the anode of diode D2, the other end ground connection of capacitance C0,
The drain electrode of NMOS switch pipe Q1 connects the resistance R2 other ends, one end source electrode connection capacitance C1 of NMOS switch pipe Q1, diode D1
Cathode, power supply VCC, the anode of diode D1, capacitance C1 other ends ground connection.
Operation principle is as described below：When beginning, capacitance C0 both end voltages are 0, and NMOS switch pipe Q1 is off, capacitance C1
Both end voltage is 0V, and at this moment IC driving chips do not work, and over time, high-voltage power supply HV is filled by resistance R1 to capacitance C0
Electricity, when the voltage at the both ends capacitance C0 reaches the threshold value that NMOS switch pipe Q1 is opened, then NMOS switch pipe Q1 is connected, and high-voltage power supply HV is logical
It crosses resistance R2 to charge to capacitance C1, due to resistance R2 resistance value very littles, so the voltage at the both ends capacitance C1 quickly reaches the work of IC
Voltage VCC（VCC powers to IC）, after IC driving chip Enable Pins start, Enable is dragged down, at this moment the electricity at the both ends capacitance C0
Pressure is 0, the Q1 shutdowns of NMOS switch pipe.Start-up circuit completes startup work, into low power consumpting state（Power consumption is HV2/R1）.
The effect of diode D1 and diode D2 starting voltage amplitude limits, protection voltage are no more than the maximum working voltage of IC driving chips.
Claims (1)
1. a kind of high-voltage high-speed start-up circuit of low-power consumption, which is characterized in that it includes resistance R1 and resistance R2, the resistance R1
One end and the one end resistance R2 are all connected with high-voltage power supply HV, and the resistance R1 other ends are the Enable Pin of IC driving chips and connect capacitance
The one end C0, the cathode of diode D2, NMOS switch pipe Q1 grid, the anode of the diode D2, another termination of capacitance C0
The drain electrode on ground, the NMOS switch pipe Q1 connects the resistance R2 other ends, and the source electrode of the NMOS switch pipe Q1 connects capacitance
The one end C1, the cathode of diode D1, the anode of power supply VCC, the diode D1, capacitance C1 other ends ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721758917.3U CN208063506U (en) | 2017-12-16 | 2017-12-16 | The high-voltage high-speed start-up circuit of low-power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721758917.3U CN208063506U (en) | 2017-12-16 | 2017-12-16 | The high-voltage high-speed start-up circuit of low-power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208063506U true CN208063506U (en) | 2018-11-06 |
Family
ID=63998115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721758917.3U Expired - Fee Related CN208063506U (en) | 2017-12-16 | 2017-12-16 | The high-voltage high-speed start-up circuit of low-power consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208063506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-12-16 CN CN201721758917.3U patent/CN208063506U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20191216 |