Driving circuit for laser diode
文献类型：专利
| 作者 | TAMATOSHI KUNIYOSHI |
| 发表日期 | 1982-06-09 |
| 专利号 | JP1982092884A |
| 著作权人 | MITSUBISHI DENKI KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Driving circuit for laser diode |
| 英文摘要 | PURPOSE:To avoid a breakdown of a laser diode caused by an overcurrent by a method wherein the current of the laser diode is observed and when the current is going to exceed a specified value, the impedance of the circuit connected to the laser diode in parallel is reduced, so that the surge current is by-passed. CONSTITUTION:A transistor TR17 is connected to a circuit of a laser diode 2 in parallel and the emitter circuit of the TR17 is connected to a resistor 19. When a current begins to flow through the diode 2 by some reason, a voltage is produced between the both ends of an emitter resistor 13 of a compound TR3 by the surge current and the voltage is applied to the TR17 through a base resistor 18. If the circuit is so designed that a base voltage produced by the surge current is saturate enough by the TR17, most of the surge current will flow through the TR17. With the above method the diode 2 is protected from deterioration or breakdown caused by the surge current. |
| 公开日期 | 1982-06-09 |
| 申请日期 | 1980-12-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59268]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MITSUBISHI DENKI KK |
| 推荐引用方式 GB/T 7714 | TAMATOSHI KUNIYOSHI. Driving circuit for laser diode. JP1982092884A. 1982-06-09. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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