| 发明名称 | Dimming drive circuit and illumination apparatus including the dimming drive circuit | ||
| 摘要 | Various embodiments may relate to a dimming drive circuit for an illumination apparatus and an illumination apparatus including the dimming drive circuit, wherein the dimming drive circuit includes a filter circuit unit and a bleeder circuit unit, a main control module connected to the filter circuit unit and the bleeder circuit unit, respectively, and an auxiliary control module configured to reduce the current of the bleeder circuit unit and/or to switch off the bleeder circuit unit according to a characteristic input current of the dimming drive circuit prior to switch-off of the bleeder circuit unit by the main control module in a first operation state of the dimming drive circuit, and to prevent the filter circuit unit from releasing electrical energy via the bleeder circuit unit in a second operation state of the dimming drive circuit. | ||
| 申请公布号 | US9565729(B2) | 申请公布日期 | 2017.02.07 |
| 申请号 | US201514684464 | 申请日期 | 2015.04.13 |
| 申请人 | OSRAM GMBH | 发明人 | Xiao Haibin;Dong YuLei |
| 分类号 | H05B39/02;H05B33/08;H05B37/02 | 主分类号 | H05B39/02 |
| 代理机构 | Viering, Jentschura & Partner mbB | 代理人 | Viering, Jentschura & Partner mbB |
| 主权项 | 1. A dimming drive circuit for an illumination apparatus, comprising; a filter circuit unit and a bleeder circuit unit, a main control module connected to the filter circuit unit and the bleeder circuit unit, respectively, and an auxiliary control module configured to reduce the current of the bleeder circuit unit and/or to switch off the bleeder circuit unit according to a characteristic input current of the dimming drive circuit prior to switch-off of the bleeder circuit unit by the main control module in a first operation state of the dimming drive circuit, and to prevent the filter circuit unit from releasing electrical energy via the bleeder circuit unit in a second operation state of the dimming drive circuit. | ||
| 地址 | Munich DE | ||