Title:
An LED driver and the control method
Document Type and Number:
Japanese Patent JP6279749
Kind Code:
B2
Abstract:
A DC-DC converter has a pulse width control circuit producing a sequence of pulses, with an on time, an off time and a switching frequency. The on time as well as the switching frequency are both varied in dependence on a dimming setting.
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Inventors:
Shuliwen
Tuan Chi
Chuwan Shujin
Tuan Chi
Chuwan Shujin
Application Number:
JP2016546458A
Publication Date:
February 14, 2018
Filing Date:
December 29, 2014
Export Citation:
Assignee:
Philips Lighting Holding BV
International Classes:
H05B37/02; H05B44/00; H01L33/00; H02M3/155
Domestic Patent References:
| JP2013118134A | ||||
| JP2012227051A |
Foreign References:
| US20120217892 | ||||
| US7755342 | ||||
| EP0758159A2 | ||||
| GB2492833A |
Attorney, Agent or Firm:
Patent Services Corporation m&s Partners