- 专利标题: Bleeder method using switch node coupling capacitor for TRIAC dimming of solid state lighting
-
申请号: US14330440申请日: 2014-07-14
-
公开(公告)号: US09692316B1公开(公告)日: 2017-06-27
- 发明人: Young Chul Ryu , Chang Qian , Wanfeng Zhang
- 申请人: Marvell International Ltd.
- 申请人地址: BM Hamilton
- 专利权人: Marvell International Ltd.
- 当前专利权人: Marvell International Ltd.
- 当前专利权人地址: BM Hamilton
- 主分类号: H05B33/08
- IPC分类号: H05B33/08 ; H02M7/06
摘要:
Power converters having bleeder circuits are disclosed. For example, in an embodiment, a power converter can include a controllable TRIAC in series with a rectifier that together produces a controllable rectified voltage at a first node, a first inductor having a first end and a second end, the first inductor being electrically connected to the first node at the first end, and electrically connected to a first power lead of a transistor and an anode of a diode at the second end, a load capacitor having a first end and a second end, the load capacitor being electrically coupled to the first node at the first end of the load capacitor, and electrically coupled to a cathode of the diode at the second end the load capacitor, control circuitry to control switching of the transistor, and a bleeder circuit coupled to the second end of the inductor, the bleeder circuit including a resistor in series with a coupling capacitor.
信息查询