| 发明名称 | Lighting device and luminaire using same | ||
| 摘要 | A lighting device includes a step-down circuit configured to convert an input voltage into a DC voltage by no insulation, and a control circuit configured to control the step-down circuit. The step-down circuit has an input end, and the step-down circuit is provided on a side of the input end with an overcurrent protector. The overcurrent protector is configured to be fused by flowing of an overcurrent. The step-down circuit has an output end, a side of which is connected in parallel with a switching circuit. The switching circuit includes a switching element. The control circuit is configured to turn on the switching element according to an output voltage of the step-down circuit. | ||
| 申请公布号 | US9265120(B2) | 申请公布日期 | 2016.02.16 |
| 申请号 | US201314428712 | 申请日期 | 2013.10.24 |
| 申请人 | Panasonic Intellectual Property Management Co., Ltd. | 发明人 | Ido Shigeru |
| 分类号 | H05B33/08 | 主分类号 | H05B33/08 |
| 代理机构 | Renner, Otto, Boisselle & Sklar, LLP | 代理人 | Renner, Otto, Boisselle & Sklar, LLP |
| 主权项 | 1. A lighting device, comprising: a step-down circuit configured to convert an input voltage into a DC voltage by no insulation; and a control circuit configured to control the step-down circuit, wherein the step-down circuit has an input end, the step-down circuit being provided on a side of the input end with an overcurrent protector, the overcurrent protector being configured to be fused by flowing of an overcurrent, wherein the step-down circuit has an output end, a side of which is connected in parallel with a switching circuit, the switching circuit comprising a switching element, and wherein the control circuit is configured to turn on the switching element according to an output voltage of the step-down circuit. | ||
| 地址 | Osaka JP | ||