| Light-emitting element drive circuit | |
| SUZUKI, TAKASHI, C/O HAMAMATSU PHOTONICS K.K.; MIZUNO, SEIICHIRO, C/O HAMAMATSU PHOTONICS K.K. | |
| 2013-08-14 | |
| 著作权人 | HAMAMATSU PHOTONICS K.K. |
| 专利号 | EP1237239B1 |
| 国家 | 欧洲专利局 |
| 文献子类 | 授权发明 |
| 其他题名 | Light-emitting element drive circuit |
| 英文摘要 | A light-emitting element drive circuit is provided whereby level variation of the drive current can be suppressed. This circuit is provided with a detection circuit 4 that detects the DC current component I6' of high-frequency current I4 (I5) flowing through a second current mirror circuit 2, and an adjustment circuit 5 that subtracts the DC current component I6' detected by the detection circuit 4 from the DC current I1 (I7) flowing through line 1B of first current mirror circuit Thus, level variation of the drive current IL' which represents the superposition of the DC and high-frequency can be suppressed. |
| 公开日期 | 2013-08-14 |
| 申请日期 | 2002-02-28 |
| 状态 | 失效 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33782]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HAMAMATSU PHOTONICS K.K. |
| 推荐引用方式 GB/T 7714 | SUZUKI, TAKASHI, C/O HAMAMATSU PHOTONICS K.K.,MIZUNO, SEIICHIRO, C/O HAMAMATSU PHOTONICS K.K.. Light-emitting element drive circuit. EP1237239B1. 2013-08-14. |
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