発光素子の駆動回路
文献类型：专利
| 作者 | 井上 泰明 |
| 发表日期 | 1994-01-26 |
| 专利号 | JP1994007609B2 |
| 著作权人 | SANYO ELECTRIC CO |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 発光素子の駆動回路 |
| 英文摘要 | PURPOSE:To make it possible to measure characteristics such as a threshold current value, response of an optical output and optical stability at the starting time of operation, by selecting operations of an APC circuit and an ACC circuit by changing a switch. CONSTITUTION:A driving part 1 drives a semiconductor laser LD. A light detecting part 2 has a light receiving diode PD, which receives the light emitted from the semiconductor laser LD. In a comparing part 3, the output voltage of the light detecting part 2 or the voltage at the cathode end of the semiconductor laser LD is compared with a preset reference voltage. In the detecting part 2, the light receiving diode PD, a resistor 21 and a variable resistor 22 for adjusting sensitivity are connected in series between a positive side power source +12V and the ground. A node between the light receiving diode PD and the resistor 21 is connected to a second switch contact C of a switch part 4. The switch part 4 has a common contact A and a first switch contact B in addition to the second switch contact C. The common contact A is connected to the gate of an FET 3 Thus both operations of an ADC and ACC can be selected. |
| 公开日期 | 1994-01-26 |
| 申请日期 | 1985-09-13 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/34545]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SANYO ELECTRIC CO |
| 推荐引用方式 GB/T 7714 | 井上 泰明. 発光素子の駆動回路. JP1994007609B2. 1994-01-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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