CN103037561B - A kind of can the LED light circuit of anti-low-voltage starter - Google Patents
A kind of can the LED light circuit of anti-low-voltage starter Download PDFInfo
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- CN103037561B CN103037561B CN201110298647.3A CN201110298647A CN103037561B CN 103037561 B CN103037561 B CN 103037561B CN 201110298647 A CN201110298647 A CN 201110298647A CN 103037561 B CN103037561 B CN 103037561B
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- resistance
- rectifier bridge
- light
- optical coupler
- emitting diode
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Abstract
The present invention relates to a kind of can the LED light circuit of anti-low-voltage starter, comprise power supply VCC, voltage drop element, first rectifier bridge, second rectifier bridge, optical coupler, light-emitting diode, first resistance, second resistance and the 3rd resistance, described power supply VCC is respectively by voltage drop element, first resistance is connected with the input of the first rectifier bridge, described power supply VCC is respectively by the second resistance, 3rd resistance is connected with the input of the second rectifier bridge, the described cathode output end of the first rectifier bridge is connected with the output of optical coupler, the described cathode output end of the first rectifier bridge is connected with the negative pole of light-emitting diode, the positive pole of described light-emitting diode is connected with the output of optical coupler, the described output of the second rectifier bridge is connected with the input of optical coupler.Compared with prior art, the present invention has the advantages such as the scope of application is wide, safe and reliable.
Description
Technical field
The present invention relates to a kind of LED light circuit, especially relate to a kind of can the LED light circuit of anti-low-voltage starter.
Background technology
Current low-voltage electrical apparatus and the instruction of appliance switch industry are in the past with incandescent lamp, neon bulb is light source, now progressively change into LED light-emitting diode as light source, for the serial indicator light of φ 22, Siemens of current domestic well-known enterprise (APT), the serial indicator light LED light source of φ 22 that the companies such as sky, Shanghai ease electrical equipment produce, all there is a common fault, when using AC220V or other voltage, be energized about < 10V time LED just start starter luminescence, and inquire LED manufacturer, this is a common fault on current LED market, low-voltage LED chip just starts starter luminescence, just voltage does not reach the meeting of rated value light secretly, current this kind of high voltage indicator light is all adopt capacitance decompression or resistance step-down or capacitance resistance in conjunction with step-down.
Now some client proposes, have dry around or induced current time can cause signal misoperation like this, can not use.
Summary of the invention
Object of the present invention is exactly can the LED light circuit of anti-low-voltage starter in order to what overcome that defect that above-mentioned prior art exists provides a kind of scope of application wide, safe and reliable.
Object of the present invention can be achieved through the following technical solutions:
A kind of can the LED light circuit of anti-low-voltage starter, it is characterized in that, comprise power supply VCC, voltage drop element, first rectifier bridge, second rectifier bridge, optical coupler, light-emitting diode, first resistance, second resistance and the 3rd resistance, described power supply VCC is respectively by voltage drop element, first resistance is connected with the input of the first rectifier bridge, described power supply VCC is respectively by the second resistance, 3rd resistance is connected with the input of the second rectifier bridge, the described cathode output end of the first rectifier bridge is connected with the output of optical coupler, the described cathode output end of the first rectifier bridge is connected with the negative pole of light-emitting diode, the positive pole of described light-emitting diode is connected with the output of optical coupler, the described output of the second rectifier bridge is connected with the input of optical coupler.
Described voltage drop element is electric capacity or the 4th resistance.
The first described rectifier bridge, the second rectifier bridge are paster bridge heap MB6S.
Compared with prior art, the present invention has the following advantages:
1, the scope of application is wide: be applicable to various customer demand, solve to circuit loop have dry around or induced current customer demand.
2, safe and reliable: effectively can to prevent the misoperation of low pressure priming signal, avoid accident.
Accompanying drawing explanation
Fig. 1 be the present invention can the LED light of anti-low-voltage starter with capacity voltage dropping circuit figure;
Fig. 2 be the present invention can the LED light of anti-low-voltage starter with resistance reduction voltage circuit figure.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As Fig. 1, shown in Fig. 2, a kind of can the LED light circuit of anti-low-voltage starter, comprise power supply VCC, voltage drop element, first rectifier bridge 3, second rectifier bridge 6, optical coupler 5, light-emitting diode 4, first resistance 1, second resistance 8 and the 3rd resistance 7, described power supply VCC is respectively by voltage drop element, first resistance 1 is connected with the input of the first rectifier bridge 3, described power supply VCC is respectively by the second resistance 8, 3rd resistance 7 is connected with the input of the second rectifier bridge 6, the cathode output end of the first described rectifier bridge 3 is connected with the output of optical coupler 5, the cathode output end of the first described rectifier bridge 3 is connected with the negative pole of light-emitting diode 4, the positive pole of described light-emitting diode 4 is connected with the output of optical coupler 5, the output of the second described rectifier bridge 6 is connected with the input of optical coupler 5.Described voltage drop element is electric capacity 2 or the 4th resistance 9.The first described rectifier bridge 3, second rectifier bridge 6 is paster bridge heap MB6S.
Described light-emitting diode 4: the luminous element referring to LED class, overall dimension, shape do not fix requirement, as long as it is just passable to send out the luminous LED of energy.
Described electric capacity 2: to select according to rated voltage or need not.
By the 4th resistance 9 (or electric capacity 2) step-down and rectification, make LED form a loop, output switch on photo coupler 5 is connected on LED loop, therefore only have when photo coupler 5 works, LED could form a loop, carries out work.
Photo coupler 5 works, and is also by resistance step-down and carries out rectification and form a loop, this time just by regulating the dropping resistor before photo coupler 5, carrys out control LED starting voltage size.
Of the present invention can the LED light circuit of anti-low-voltage starter, to input AC220V voltage, adopt resistance step-down form, first resistance 1 selects 30K Ω/2W metalfilmresistor, 4th resistance 9 selects 15K Ω/2W metalfilmresistor, first rectifier bridge 3 adopts paster square (MB6S) rectifier bridge, light-emitting diode 4 adopts φ 5*4.5 (mm) light-emitting diode, photo coupler 5 adopts PC817 photo coupler, second rectifier bridge 6 adopts paster square (MB6S) rectifier bridge, 3rd resistance 7 adopts 10M Ω/12W metalfilmresistor, second resistance 8 not connecting resistance, direct lead wire, making loop by this circuit can LED not starter (starting voltage size mainly regulates the resistance value of the 3rd resistance 7 and the second resistance 8) within control AC or DC80V voltage.
Claims (1)
1. one kind can the LED light circuit of anti-low-voltage starter, it is characterized in that, comprise power supply VCC, voltage drop element, first rectifier bridge, second rectifier bridge, optical coupler, light-emitting diode, first resistance, second resistance and the 3rd resistance, described power supply VCC is respectively by voltage drop element, first resistance is connected with the input of the first rectifier bridge, described power supply VCC is respectively by the second resistance, 3rd resistance is connected with the input of the second rectifier bridge, the described cathode output end of the first rectifier bridge is connected with the output of optical coupler, the described cathode output end of the first rectifier bridge is connected with the negative pole of light-emitting diode, the positive pole of described light-emitting diode is connected with the output of optical coupler, the described output of the second rectifier bridge is connected with the input of optical coupler,
Described voltage drop element is electric capacity or the 4th resistance;
The first described rectifier bridge, the second rectifier bridge are paster bridge heap MB6S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110298647.3A CN103037561B (en) | 2011-09-30 | 2011-09-30 | A kind of can the LED light circuit of anti-low-voltage starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110298647.3A CN103037561B (en) | 2011-09-30 | 2011-09-30 | A kind of can the LED light circuit of anti-low-voltage starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103037561A CN103037561A (en) | 2013-04-10 |
| CN103037561B true CN103037561B (en) | 2015-12-02 |
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ID=48023901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110298647.3A Active CN103037561B (en) | 2011-09-30 | 2011-09-30 | A kind of can the LED light circuit of anti-low-voltage starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103037561B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2170068A (en) * | 1985-01-11 | 1986-07-23 | Hollingsworth | Line break detector |
| CN101893218A (en) * | 2010-07-13 | 2010-11-24 | 深圳市金流明光电技术有限公司 | LED tube and circuit thereof |
| CN202276514U (en) * | 2011-09-30 | 2012-06-13 | 上海永星电子开关有限公司 | LED indicating lamp circuit |
-
2011
- 2011-09-30 CN CN201110298647.3A patent/CN103037561B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2170068A (en) * | 1985-01-11 | 1986-07-23 | Hollingsworth | Line break detector |
| CN101893218A (en) * | 2010-07-13 | 2010-11-24 | 深圳市金流明光电技术有限公司 | LED tube and circuit thereof |
| CN202276514U (en) * | 2011-09-30 | 2012-06-13 | 上海永星电子开关有限公司 | LED indicating lamp circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103037561A (en) | 2013-04-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130410 Assignee: Top automotive electrical appliance (Shanghai) Co., Ltd. Assignor: Shanghai Yongxing Electronic Switch Co., Ltd. Contract record no.: 2017310000044 Denomination of invention: Light-emitting diode (LED) indicator lamp circuit capable of resisting low voltage starting Granted publication date: 20151202 License type: Exclusive License Record date: 20170727 |
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| EE01 | Entry into force of recordation of patent licensing contract |