Temperature controlling circuit for a semiconductor light-emitting device
文献类型：专利
| 作者 | TANAKA, KEIJI |
| 发表日期 | 2005-05-26 |
| 专利号 | US20050109041A1 |
| 著作权人 | SUMITOMO ELECTRIC INDUSTRIES, LTD. |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Temperature controlling circuit for a semiconductor light-emitting device |
| 英文摘要 | The present invention provides a temperature control circuit for a semiconductor light-emitting device, in which scale of the circuit is not enlarged and noise due to the current switching is not generated. In the temperature control circuit of the present invention, although the DC voltage VATC supplied to the Peltier device is generated by the DC-to-DC converting from the external power VCC, the DC voltage VATC is feedback controlled so as to coincide with a target value of the DC voltage that is set based on an error signal generated by detecting a voltage drop of the Peltier device and comparing this drop voltage with a reference voltage. A control signal for setting the temperature of the laser diode to the target temperature through heating up or cooling down the Peltier device by flowing a current corresponding to an error between the target temperature and a practical temperature detected by the thermistor in the Peltier device from the thermoelectric controller current driver. |
| 公开日期 | 2005-05-26 |
| 申请日期 | 2004-08-05 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/61128]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SUMITOMO ELECTRIC INDUSTRIES, LTD. |
| 推荐引用方式 GB/T 7714 | TANAKA, KEIJI. Temperature controlling circuit for a semiconductor light-emitting device. US20050109041A1. 2005-05-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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