| 半導体レーザ保護装置 | |
| 朝田 賢一郎 | |
| 1999-12-10 | |
| 著作权人 | 株式会社リコー |
| 专利号 | JP3011238B2 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 半導体レーザ保護装置 |
| 英文摘要 | PURPOSE:To prevent a semiconductor laser from breaking by restricting the order of the rising and falling of each power source and resetting an APC circuit in the case of a transient state. CONSTITUTION:The output of a control system power source +5V(A) and a constant current power source + or -12V which are inputted to laser driving circuits 104 - 108 and the output of a power source +5V(B) for the laser which is connected directly to the semiconductor laser 104 are discriminated, and supplied or cut off according to what states the respective power sources are in. When the power source for the laser is cut off, a counter 110 is reset by a reset circuit 115. Thus, the rising-falling order of the respective power sources is controlled and the APC circuit is reset in the case of a transient state. Consequently, an overcurrent is prevented from flowing to the semiconductor laser 104. |
| 公开日期 | 2000-02-21 |
| 申请日期 | 1990-06-29 |
| 状态 | 失效 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33354]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 株式会社リコー |
| 推荐引用方式 GB/T 7714 | 朝田 賢一郎. 半導体レーザ保護装置. JP3011238B2. 1999-12-10. |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
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。
修改评论