CN106163014A - LED with inductance step-down - Google Patents

LED with inductance step-down Download PDF

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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
Authority
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.)
Pending
Application number
CN201610777175.2A
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Chinese (zh)
Inventor
周鸿德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610777175.2A priority Critical patent/CN106163014A/en
Publication of CN106163014A publication Critical patent/CN106163014A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40Details 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

LED with inductance step-down
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
CN201610777175.2A 2016-08-31 2016-08-31 LED with inductance step-down Pending CN106163014A (en)

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)

* Cited by examiner, † Cited by third party
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 中山银利自动化系统设备有限公司 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

Patent Citations (15)

* Cited by examiner, † Cited by third party
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 中山银利自动化系统设备有限公司 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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Application publication date: 20161123