Current steering circuit
文献类型：专利
| 作者 | LUQUE, PHILLIP R. |
| 发表日期 | 1998-06-09 |
| 专利号 | US5764667 |
| 著作权人 | HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Current steering circuit |
| 英文摘要 | A current steering circuit accomplishes high speed switching of drive current through a vertical cavity surface emitting laser (VCSEL) diode. The preferred embodiment of the current steering circuit includes a first and second schottky diode, connected anode to anode, as the circuit elements used to steer the current that flows into the common connection point of the schottky diodes. The cathode of the first schottky diode is connected to the anode of the VCSEL diode. The cathode of the second schottky diode is connected to one side of a network formed from three resistors. The other side of the network is connected to the output of a CMOS invertor used to buffer the video signal which controls the steering of the current. With the output of the CMOS invertor at a high level, the second schottky diode is in the off state and the first schottky diode is in the on state, forcing drive current to flow through the VCSEL diode. With the output of the CMOS invertor at a low level, the first schottky diode is in the off state and the second schottky diode is in the on state, forcing drive current to bypass the VCSEL diode. |
| 公开日期 | 1998-06-09 |
| 申请日期 | 1996-12-09 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/42809]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
| 推荐引用方式 GB/T 7714 | LUQUE, PHILLIP R.. Current steering circuit. US5764667. 1998-06-09. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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