Title:
LED LAMP DRIVER CIRCUIT AND LIGHTING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2015/062169
Kind Code:
A1
Abstract:
Embodiments of the present invention provide an LED lamp driver circuit and lighting circuit, so that a problem in the prior art that the service life of an LED lighting system is shortened due to high heat generation because many capacitors are deployed in a driver circuit is solved. The driver circuit comprises a zero-crossing detector, a frequency detector, a pulse width modulation (PWM) mode, a PWM generator, an LED current reference module, and a MOSFET transistor group, so as to implement driving for an LED lamp by using a connection relationship between components. Because a capacitor device is not used in the driver circuit in the embodiments of the present invention, a problem of heating from a long time use of a capacitor device does not exist, and the service life of the lighting system is also not affected.
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Inventors:
LIU XINGJUN (CN)
CHO BYONG DO (CN)
CHO BYONG DO (CN)
Application Number:
PCT/CN2014/000961
Publication Date:
May 07, 2015
Filing Date:
October 31, 2014
Export Citation:
Assignee:
LANGFANG SANTIAN ELECTRIC APPLIANCE CO LTD (CN)
International Classes:
H05B37/02
Foreign References:
| CN103906313A | 2014-07-02 | |||
| CN203851322U | 2014-09-24 |
Attorney, Agent or Firm:
BEIJING STRONG WISDOM INTELLECTUAL PROPERTY LAW FIRM (CN)
北京中强智尚知识产权代理有限公司 (CN)
北京中强智尚知识产权代理有限公司 (CN)
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