| 发明名称 | Drive circuit for illumination device and illumination device | ||
| 摘要 | Various embodiments relate to a drive circuit for an illumination device and an illumination device. The drive circuit includes a first drive module, wherein the first drive module is configured to convert an alternating current signal from a power supply to a constant current drive signal supplied to a light-emitting unit of the illumination device, and wherein the drive circuit further includes a second drive module, and wherein the second drive module is in series connection with the first drive module and the light-emitting unit and is configured to hold a voltage which is applied across the second drive module by the constant current drive signal, and the second drive module further includes a first switch means which is driven by the held voltage to turn on such that a current signal output from the second drive module is a direct current signal. | ||
| 申请公布号 | US9351360(B2) | 申请公布日期 | 2016.05.24 |
| 申请号 | US201514826231 | 申请日期 | 2015.08.14 |
| 申请人 | OSRAM GMBH | 发明人 | Zhang Quan |
| 分类号 | H05B33/08 | 主分类号 | H05B33/08 |
| 代理机构 | Viering, Jentschura & Partner mbB | 代理人 | Viering, Jentschura & Partner mbB |
| 主权项 | 1. A drive circuit for an illumination device, comprising: a first drive module configured to convert an alternating current signal from a power supply to a constant current drive signal supplied to a light-emitting unit of the illumination device, and a second drive module connected in series with the first drive module and the light-emitting unit, and configured to hold a voltage which is applied across the second drive module by the constant current drive signal, the second drive module comprising a first switch which is driven by the held voltage to turn on such that a current signal output from the second drive module is a direct current signal. | ||
| 地址 | Munich DE | ||