| 发明名称 | Light emitting element lighting device and lighting fixture using same | ||
| 摘要 | The light emitting element lighting device in accordance with the present invention, includes: a light emitting unit including a light emitting element; and a power supply circuit configured to supply a supply voltage to the light emitting unit. The power supply circuit is configured to increase the supply voltage from a first voltage lower than a lighting start voltage of the light emitting element to a second voltage higher than the lighting start voltage to light up the light emitting unit. The power supply circuit is configured to, in a process of increasing the supply voltage from the first voltage to the second voltage, decrease a rate of increase in the supply voltage as the supply voltage gets closer to the second voltage. | ||
| 申请公布号 | US9167658(B2) | 申请公布日期 | 2015.10.20 |
| 申请号 | US201313933283 | 申请日期 | 2013.07.02 |
| 申请人 | Panasonic Intellectual Property Management Co., Ltd. | 发明人 | Nakajo Akira;Kido Hiroshi |
| 分类号 | H05B33/08;H02H9/00 | 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 light emitting element lighting device comprising: a light emitting unit including a light emitting element; and a power supply circuit configured to supply a supply voltage to the light emitting unit, wherein: the power supply circuit is configured to increase the supply voltage from a first voltage lower than a lighting start voltage of the light emitting element to a second voltage higher than the lighting start voltage to light up the light emitting unit; the power supply circuit is configured to, in a process of increasing the supply voltage from the first voltage to the second voltage, decrease a rate of increase in the supply voltage as the supply voltage gets closer to the second voltage; and the power supply circuit is configured to increase the supply voltage from zero to the first voltage gradually. | ||
| 地址 | Osaka JP | ||