Driving circuit of laser diode
文献类型：专利
| 作者 | MORITSUGU MASAHARU; OZAWA YASUYUKI |
| 发表日期 | 1984-05-08 |
| 专利号 | JP1984079440A |
| 著作权人 | FUJITSU KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Driving circuit of laser diode |
| 英文摘要 | PURPOSE:To perform both accurate storage and read-out of information with just a single laser diode by providing a control circuit which controls the driving current of the laser diode based on the difference between the output signal sent from a sample holder and a prescribed reference signal. CONSTITUTION:The output voltage of a sample holder 9 is applied to the reverse input terminal of a differential amplifier 4 via a resistor 13. The reference voltage Vref is applied to a reference voltage generating source 6. A resistor 12b is equal to a feedback resistance of the amplifier 4, and the voltage Vf is controlled in relation to a resistor 12a and then applied to the reverse input terminal of the amplifier 4. The amplifier 4 calculates (Vref-Vf), and this difference voltage is properly amplified and applied between the base and the emitter of a transistor 5 via a resistor 12c. The transistor 5 flows a current proportional to said difference voltage to a laser diode A resistor 12d controls the driving current Ir of the laser diode Ir. |
| 公开日期 | 1984-05-08 |
| 申请日期 | 1982-10-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59311]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJITSU KK |
| 推荐引用方式 GB/T 7714 | MORITSUGU MASAHARU,OZAWA YASUYUKI. Driving circuit of laser diode. JP1984079440A. 1984-05-08. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。