CN108174482A - A kind of high-voltage starting circuit of supper-fast low-power consumption - Google Patents
A kind of high-voltage starting circuit of supper-fast low-power consumption Download PDFInfo
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- CN108174482A CN108174482A CN201711455531.XA CN201711455531A CN108174482A CN 108174482 A CN108174482 A CN 108174482A CN 201711455531 A CN201711455531 A CN 201711455531A CN 108174482 A CN108174482 A CN 108174482A
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- triode
- diode
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- power consumption
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- 230000000087 stabilizing effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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Abstract
The present invention provides a kind of high-voltage starting circuits of supper-fast low-power consumption,Its circuit structure design advantages of simple,The power consumption of entire circuit system can be substantially reduced while improving and starting speed,It includes resistance R1,R2,Resistance R1,Connection high voltage power supply HV after one end connection of R2,The base stage of one end connecting triode Q1 of resistance R1,The collector of triode Q1 connects the other end of resistance R2 respectively,The collector of triode Q2,The base stage of the emitter difference connecting triode Q2 of triode Q1,The cathode of zener diode D2,The anode connection enable port Enable of zener diode D2,The emitter of triode Q2 connects voltage source VCC respectively,One end of capacitance C1,The cathode of diode D1,The other end of capacitance C1,It is grounded after the anode connection of diode D1,Zener diode D2 can use the diode D3 of series connection,D4 is replaced.
Description
Technical field
The present invention relates to circuit start engineering device technique field, specially a kind of high-voltage starting circuit of supper-fast low-power consumption.
Background technology
At present, the driving IC of LED light is often needed using high pressure as startup power supply, high-voltage starting circuit of the prior art
Startup speed and low-power consumption be often conflicting.The high-voltage starting circuit of common LED light switching power source chip is main
Circuit is made quickly to start using the external method for starting resistance, but this Starting mode circuit is unable to automatic shutoff, and starts
The increase of resistance not only makes entire more complicated circuit structure, but also makes the power consumption of entire start-up circuit bigger than normal.If reduce this
Part power consumption, it is necessary to increase additional resistance, can greatly prolong the startup time of entire circuit system again in this way.Therefore,
High-voltage starting circuit a kind of capable of fast starting and relatively low power consumption is invented as our urgent problems to be solved.
Invention content
For the problems such as circuit structure in the prior art is complicated, startup speed and low-power consumption is conflicting, this hair
Bright to provide a kind of high-voltage starting circuit of supper-fast low-power consumption, circuit structure design advantages of simple starts speed improving
While can substantially reduce the power consumption of entire circuit system.
A kind of high-voltage starting circuit of supper-fast low-power consumption, including resistance R1, R2, one end of described resistance R1, R2 connect
High voltage power supply HV is connected after connecing, which is characterized in that the base stage of one end connecting triode Q1 of the resistance R1, the triode Q1
Collector connect the collector of the other end of the resistance R2, the triode Q2, the emitter of the triode Q1 respectively
The base stage of the triode Q2, the cathode of zener diode D2 are connected respectively, and the anode connection of the zener diode D2 is enabled
Port Enable, the emitter of the triode Q2 connect the cathode of voltage source VCC, one end of capacitance C1, diode D1 respectively,
It is grounded after the anode connection of the other end, diode D1 of the capacitance C1.
It is further characterized by the zener diode D2 can be replaced with diode D3, D4 of series connection, the triode
The emitter of Q1 connect respectively the base stage of the triode Q2, the diode D3 anode, the cathode of the diode D3 connects
The anode of the diode D4 is connect, the cathode of the triode D4 connects the enable port Enable, two pole of series connection
The effect of pipe D3, D4 in circuit is as zener diode D2 effects in circuit, it is ensured that the enable port
The voltage of Enable is no more than the voltage value of voltage source VCC.
Applying the present invention in the driving IC of LED lamp, voltage source VCC's act as powering to driving IC, resistance R1,
R2's act as current limliting, and at the beginning of system electrification, capacitance C1 both end voltages are 0V, at this moment IC are driven not work, with pushing away for time
It moving, high voltage power supply HV gives C1 quick charges, and electric current is amplified by Q1, Q2 by resistance R1, triode Q1, Q2, when
When the voltage at C1 both ends reaches the value of the operating voltage voltage source VCC of driving IC, driving IC starts, at this time by enable port
Enable is dragged down, at this moment triode Q1, Q2 shutdowns.Start-up circuit completes startup work, and enters low power consumpting state.As it can be seen that
The quick startup of driving IC can be realized without external startup resistance for start-up circuit design, and the power consumption of driving IC is at this time
HV2/R1, greatly reduce the power consumption for driving IC.Voltage is protected in the effect of two zener diode D1, D2 starting voltage amplitude limits
No more than the maximum working voltage of driving IC, i.e. the voltage of enable port Enable is no more than the voltage value of voltage source VCC, equally
, diode D3, D4 can ensure that the voltage of enable port Enable is no more than the voltage value of voltage source VCC.
Description of the drawings
Fig. 1 is circuit diagram when present invention inside connects zener diode D2；
Fig. 2 is circuit diagram when present invention inside connects diode D3, D4.
Specific embodiment
Embodiment one, as shown in Figure 1, a kind of high-voltage starting circuit of supper-fast low-power consumption, including resistance R1, R2, electricity
High voltage power supply HV is connected after hindering one end connection of R1, R2, which is characterized in that the base stage of one end connecting triode Q1 of resistance R1,
The collector of triode Q1 connects the collector of the other end of resistance R2, triode Q2, the emitter difference of triode Q1 respectively
The base stage of connecting triode Q2, the cathode of zener diode D2, zener diode D2 anode connection enable port Enable, three
The emitter of pole pipe Q2 connects the cathode of voltage source VCC, one end of capacitance C1, diode D1, the other end of capacitance C1, two respectively
It is grounded after the anode connection of pole pipe D1.
Embodiment two, as shown in Fig. 2, a kind of high-voltage starting circuit of supper-fast low-power consumption, including resistance R1, R2, electricity
High voltage power supply HV is connected after hindering one end connection of R1, R2, which is characterized in that the base stage of one end connecting triode Q1 of resistance R1,
The collector of triode Q1 connects the collector of the other end of resistance R2, triode Q2, the emitter difference of triode Q1 respectively
The base stage of connecting triode Q2, the anode of diode D3, the anode of the cathode connection diode D4 of diode D3, triode D4's
Cathode connects enable port Enable, and the emitter of triode Q2 connects voltage source VCC, one end of capacitance C1, diode respectively
The cathode of D1 is grounded after the anode connection of the other end, diode D1 of capacitance C1.
Its concrete operating principle is as described below, and embodiment one is identical with the operation principle of embodiment two, the work of voltage source VCC
With to give driving IC power supplies, resistance R1, R2's act as current limliting, and at the beginning of system electrification, capacitance C1 both end voltages are 0V, are at this moment driven
Dynamic IC does not work, and over time, high voltage power supply HV gives C1 quick charges, and electricity by resistance R1, triode Q1, Q2
Stream is amplified by Q1, Q2, when the voltage at C1 both ends reaches the value of the operating voltage voltage source VCC of driving IC, drives IC
Start, at this time drag down enable port Enable, at this moment triode Q1, Q2 shutdowns.Start-up circuit completes startup work, goes forward side by side
Enter low power consumpting state.The effect of two zener diode D1, D2 starting voltage amplitude limits in embodiment one, protection voltage are no more than driving
The maximum working voltage of IC, the i.e. voltage of enable port Enable are no more than the voltage value of voltage source VCC, likewise, embodiment
In two, diode D3, D4 can ensure that the voltage of enable port Enable is no more than the voltage value of voltage source VCC.
Claims (2)
1. a kind of high-voltage starting circuit of supper-fast low-power consumption, including resistance R1, R2, one end connection of described resistance R1, R2
Connection high voltage power supply HV afterwards, which is characterized in that the base stage of one end connecting triode Q1 of the resistance R1, the triode Q1's
Collector connects the collector of the other end of the resistance R2, the triode Q2, the emitter point of the triode Q1 respectively
The base stage of the triode Q2, the cathode of zener diode D2, the anode connection Enable Pin of the zener diode D2 are not connected
Mouth Enable, the emitter of the triode Q2 connect the cathode of voltage source VCC, one end of capacitance C1, diode D1, institute respectively
It is grounded after stating the anode connection of the other end, diode D1 of capacitance C1.
A kind of 2. high-voltage starting circuit of supper-fast low-power consumption according to claim 1, which is characterized in that the voltage stabilizing two
Pole pipe D2 can be replaced with diode D3, D4 of series connection, and the emitter of the triode Q1 connects the base of the triode Q2 respectively
Pole, the anode of the diode D3, the cathode of the diode D3 connect the anode of the diode D4, the triode D4's
Cathode connects the enable port Enable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711455531.XA CN108174482A (en) | 2017-12-28 | 2017-12-28 | A kind of high-voltage starting circuit of supper-fast low-power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711455531.XA CN108174482A (en) | 2017-12-28 | 2017-12-28 | A kind of high-voltage starting circuit of supper-fast low-power consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108174482A true CN108174482A (en) | 2018-06-15 |
Family
ID=62519154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711455531.XA Withdrawn CN108174482A (en) | 2017-12-28 | 2017-12-28 | A kind of high-voltage starting circuit of supper-fast low-power consumption |
Country Status (1)
| Country | Link |
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| CN (1) | CN108174482A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203574536U (en) * | 2013-09-23 | 2014-04-30 | 深圳科士达科技股份有限公司 | Starting circuit of PWM chip of wide-voltage auxiliary power source |
| CN104124878A (en) * | 2014-07-23 | 2014-10-29 | 上海晶丰明源半导体有限公司 | Power supply module, switch power supply chip and switch power supply system |
| CN104333722A (en) * | 2014-10-30 | 2015-02-04 | 青岛歌尔声学科技有限公司 | Low power consumption starting circuit and liquid crystal television |
| CN106452041A (en) * | 2016-11-01 | 2017-02-22 | 苏州锴威特半导体有限公司 | Power supply circuit for AC-DC switching power supply and achieving high-voltage rapid start through PowerMOS pipe |
| CN206595889U (en) * | 2017-03-23 | 2017-10-27 | 广州市爱浦电子科技有限公司 | The power starting circuit of output short circuit protection small power consumption |
| 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 |
| CN207835865U (en) * | 2017-12-28 | 2018-09-07 | 无锡昌至盛机械制造有限公司 | A kind of high-voltage starting circuit of supper-fast low-power consumption |
-
2017
- 2017-12-28 CN CN201711455531.XA patent/CN108174482A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203574536U (en) * | 2013-09-23 | 2014-04-30 | 深圳科士达科技股份有限公司 | Starting circuit of PWM chip of wide-voltage auxiliary power source |
| CN104124878A (en) * | 2014-07-23 | 2014-10-29 | 上海晶丰明源半导体有限公司 | Power supply module, switch power supply chip and switch power supply system |
| CN104333722A (en) * | 2014-10-30 | 2015-02-04 | 青岛歌尔声学科技有限公司 | Low power consumption starting circuit and liquid crystal television |
| CN106452041A (en) * | 2016-11-01 | 2017-02-22 | 苏州锴威特半导体有限公司 | Power supply circuit for AC-DC switching power supply and achieving high-voltage rapid start through PowerMOS pipe |
| CN206595889U (en) * | 2017-03-23 | 2017-10-27 | 广州市爱浦电子科技有限公司 | The power starting circuit of output short circuit protection small power consumption |
| 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 |
| CN207835865U (en) * | 2017-12-28 | 2018-09-07 | 无锡昌至盛机械制造有限公司 | A kind of high-voltage starting circuit of supper-fast low-power consumption |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20180615 |