CN106163014A - LED with inductance step-down - Google Patents
LED with inductance step-down Download PDFInfo
- Publication number
- CN106163014A CN106163014A CN201610777175.2A CN201610777175A CN106163014A CN 106163014 A CN106163014 A CN 106163014A CN 201610777175 A CN201610777175 A CN 201610777175A CN 106163014 A CN106163014 A CN 106163014A
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- CN
- China
- Prior art keywords
- inductor
- led
- alternating current
- rectistack
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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]
- H05B45/40—Details of LED load circuits
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of LED of inductance step-down, including the Zener diode VD connecting with LED and rectistack D, it is characterised in that: the alternating current input of described rectistack D is connected to the first inductor L1, the second inductor L2 respectively.Its advantage is the characteristic utilizing inductance, AC impedance is big, DC impedance is little, inductor is connected on the power input of LED, alternating current voltage is reduced, obtain being suitable for the power supply of LED operation, simultaneously, direct current can also pass through inductor and return in circuit, and will not produce high heat, reliable working performance during inductor work.
Description
Technical field
The present invention relates to a kind of light fixture, particularly to the LED of a kind of inductance step-down.
Background technology
Chinese patent is disclosed entitled: " power supply of automatic stabilisation operating voltage and electric current " (patent No.:
2014106842959), this power supply may be used for LED lamp, and an alternating current input at rectistack uses capacitance decompression
Mode is depressured, and this power supply there is the problem that, when alternating current is positive half cycle, alternating current enters rectification by capacitance decompression
Heap, rectified heap exports direct current, and direct current is through electric capacity C2After filtering, flow through light emitting diode RL, Zener diode VD, by whole
The output of stream heap returns to the other end of alternating current input, and now, LED operation is luminous.When alternating current is negative half period,
Alternating current can directly input rectistack, and rectistack exports direct current, and direct current is through electric capacity C2Flow after filtering with light emitting diode RL,
Zener diode VD, outwards exports after entering rectistack, and now, direct current can not pass through electric capacity C1, can only be by resistance R5Upper logical
Cross, because resistance R5Resistance very big, the electric current flowing through is very little, so when alternating current is negative half period, whole circuit is substantially
Not working, the alternating current having half is can not to work and be wasted.
Content of the invention
It is an object of the invention to provide a kind of characteristic utilizing inductance, AC impedance is big, and DC impedance is little, by inductor
It is connected on the power input of LED, alternating current voltage is reduced, obtain being suitable for the power supply of LED operation, meanwhile, directly
Stream electricity can also pass through inductor and return in circuit, and will not produce high heat, the use of reliable working performance during inductor work
The LED of inductance step-down.
The solution of the present invention is such that
A kind of LED of inductance step-down, including the Zener diode VD connecting with LED and rectistack D, it is characterised in that:
The alternating current input of described rectistack D is connected to the first inductor L respectively1, the second inductor L2。
It is an advantage of the invention that the characteristic utilizing inductance, AC impedance is big, and DC impedance is little, and inductor is connected on LED
Alternating current voltage is reduced by the power input of lamp, obtains being suitable for the power supply of LED operation, and meanwhile, direct current can also
Pass through inductor to return in circuit, and high heat, reliable working performance during inductor work, will not be produced.
Brief description
Fig. 1 is the circuit theory diagrams of the present invention.
Detailed description of the invention
As it is shown in figure 1, the present invention includes the first inductor L1, the second inductor L2, rectistack D, electric capacity C, voltage stabilizing two war proclamation setting forth the purpose of the expedition and enumerating the crimes of the enemy pipe
VD and light emitting diode RL, the first inductor L1, the second inductor L2It is coupled with two alternating current inputs of rectistack D.
Concrete connection is: the first inductor L1One end is alternating current input A end, and the other end connects 1 pin of rectistack D；The
Two inductor L2 one end are exchange input B end, and the other end connects 2 pin of rectistack D, and 3 pin of rectistack D are just connecting electric capacity C
Pole and the positive pole of light emitting diode RL, 4 pin of rectistack D connect the negative pole of electric capacity C and the positive pole of Zener diode VD, luminescence two
Pole pipe RLNegative pole connect Zener diode VD negative pole.
The operation principle of the present invention is:
Access 220V alternating current at A, B two ends, when alternating current is positive half cycle, alternating current is entered through the first inductor by A end
L1When, voltage can reduce, and electric current also can reduce, and the alternating current after step-down is entered by 1 pin of rectistack D and from 3 pin output direct currents
Electricity, direct current, after electric capacity C filtering, flows through light emitting diode RL, Zener diode VD, by rectistack D 4 pin enter and by 2
Pin exports, and inductor is very little to galvanic impedance, so direct current passes through the second inductor L2Return to B end, now, send out
Optical diode RLLuminous work.When alternating current is negative half period, when alternating current is passed through the second inductor L2 by B end, voltage can drop
Low, electric current can reduce, and the alternating current after step-down is by the 2 pin inputs of rectistack D and from 3 pin output direct currents, and direct current is through electric capacity C
Pass through light emitting diode R after filteringL, Zener diode VD, entered and from 1 pin output, and led to smoothly by 4 pin of rectistack D
Cross the first inductor L1Return to A end, now, light emitting diode RLLuminous work.
Knowable to upper description, the present invention worked within the whole cycle of alternating current.
Claims (1)
1. the LED with inductance step-down, including the Zener diode VD connecting with LED and rectistack D, its feature exists
In: the alternating current input of described rectistack D is connected to the first inductor L respectively1, the second inductor L2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610777175.2A CN106163014A (en) | 2016-08-31 | 2016-08-31 | LED with inductance step-down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610777175.2A CN106163014A (en) | 2016-08-31 | 2016-08-31 | LED with inductance step-down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106163014A true CN106163014A (en) | 2016-11-23 |
Family
ID=57344247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610777175.2A Pending CN106163014A (en) | 2016-08-31 | 2016-08-31 | LED with inductance step-down |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106163014A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636021A (en) * | 2008-07-25 | 2010-01-27 | 深圳市海洋王照明科技股份有限公司 | LED constant current driving circuit |
| CN201450636U (en) * | 2009-06-04 | 2010-05-05 | 广州冠今电子科技有限公司 | LED constant-current drive circuit capable of regulating light |
| CN101765273A (en) * | 2010-01-22 | 2010-06-30 | 海洋王照明科技股份有限公司 | Stepless dimming LED drive circuit |
| US7816872B2 (en) * | 2008-02-29 | 2010-10-19 | General Electric Company | Dimmable instant start ballast |
| CN201821546U (en) * | 2010-09-01 | 2011-05-04 | 中山银利自动化***设备有限公司 | LED light source driving power supply |
| JP2011243331A (en) * | 2010-05-14 | 2011-12-01 | Fkk Co Ltd | Led power supply circuit |
| CN203645881U (en) * | 2013-12-17 | 2014-06-11 | 苏州东山精密制造股份有限公司 | LED down lamp with wireless radio frequency remote control |
| CN104093246A (en) * | 2014-07-03 | 2014-10-08 | 广东良得光电科技有限公司 | Valley-filled-type-current-correction and dimmable LED driving circuit |
| CN204119579U (en) * | 2014-07-03 | 2015-01-21 | 广东良得光电科技有限公司 | A kind of valley fill type electric current correction Dimmable LED drive circuit |
| CN104320009A (en) * | 2014-11-25 | 2015-01-28 | 周鸿德 | Power source for automatically stabilizing working voltages and currents |
| CN204191007U (en) * | 2014-11-19 | 2015-03-04 | 西安重装渭南光电科技有限公司 | Led drive device |
| CN204518147U (en) * | 2015-03-18 | 2015-07-29 | 盐城工学院 | A kind of LED drive circuit |
| CN104981064A (en) * | 2015-06-23 | 2015-10-14 | 成都亿信标准认证集团有限公司 | Simple and practical harmonic wave improved LED drive circuit |
| CN104994653A (en) * | 2015-07-04 | 2015-10-21 | 嘉兴市伊飞诺电器有限公司 | High-power-factor driving circuit |
| CN204887585U (en) * | 2015-07-28 | 2015-12-16 | 国网江西省电力公司南昌供电分公司 | Turn over and swash formula LED drive circuit |
-
2016
- 2016-08-31 CN CN201610777175.2A patent/CN106163014A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7816872B2 (en) * | 2008-02-29 | 2010-10-19 | General Electric Company | Dimmable instant start ballast |
| CN101636021A (en) * | 2008-07-25 | 2010-01-27 | 深圳市海洋王照明科技股份有限公司 | LED constant current driving circuit |
| CN201450636U (en) * | 2009-06-04 | 2010-05-05 | 广州冠今电子科技有限公司 | LED constant-current drive circuit capable of regulating light |
| CN101765273A (en) * | 2010-01-22 | 2010-06-30 | 海洋王照明科技股份有限公司 | Stepless dimming LED drive circuit |
| JP2011243331A (en) * | 2010-05-14 | 2011-12-01 | Fkk Co Ltd | Led power supply circuit |
| CN201821546U (en) * | 2010-09-01 | 2011-05-04 | 中山银利自动化***设备有限公司 | LED light source driving power supply |
| CN203645881U (en) * | 2013-12-17 | 2014-06-11 | 苏州东山精密制造股份有限公司 | LED down lamp with wireless radio frequency remote control |
| CN104093246A (en) * | 2014-07-03 | 2014-10-08 | 广东良得光电科技有限公司 | Valley-filled-type-current-correction and dimmable LED driving circuit |
| CN204119579U (en) * | 2014-07-03 | 2015-01-21 | 广东良得光电科技有限公司 | A kind of valley fill type electric current correction Dimmable LED drive circuit |
| CN204191007U (en) * | 2014-11-19 | 2015-03-04 | 西安重装渭南光电科技有限公司 | Led drive device |
| CN104320009A (en) * | 2014-11-25 | 2015-01-28 | 周鸿德 | Power source for automatically stabilizing working voltages and currents |
| CN204518147U (en) * | 2015-03-18 | 2015-07-29 | 盐城工学院 | A kind of LED drive circuit |
| CN104981064A (en) * | 2015-06-23 | 2015-10-14 | 成都亿信标准认证集团有限公司 | Simple and practical harmonic wave improved LED drive circuit |
| CN104994653A (en) * | 2015-07-04 | 2015-10-21 | 嘉兴市伊飞诺电器有限公司 | High-power-factor driving circuit |
| CN204887585U (en) * | 2015-07-28 | 2015-12-16 | 国网江西省电力公司南昌供电分公司 | Turn over and swash formula LED drive circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |