Source follower circuit, laser driving apparatus, semiconductor laser apparatus, current-voltage convertion circuit, and light receiving circuit

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	Source follower circuit, laser driving apparatus, semiconductor laser apparatus, current-voltage convertion circuit, and light receiving circuit
其他题名	Source follower circuit, laser driving apparatus, semiconductor laser apparatus, current-voltage convertion circuit, and light receiving circuit
	FURUDATE, SEIGO; TSUMURA, EIJI; SAWADA, SOSAKU; HARA, HIROSHI
	2003-05-20
专利权人	SUMITOMO ELECTRIC INDUSTRIES, LTD.
公开日期	2003-05-20
授权国家	美国
专利类型	授权发明
摘要	Provided are a source follower circuit having a current source having its improved current characteristics, laser driving apparatus, semiconductor laser apparatus, current-voltage conversion circuit, and light receiving circuit. Each of the laser driving apparatus, semiconductor laser apparatus, current-voltage conversion circuit, and light receiving circuit comprises the source follower circuit. The source follower circuit 10 comprises a source follower stage 12 and a bias stage 14. The source follower stage has III-V compound semiconductor transistors 16, 18 and 20. The bias stage 14 has a first node 22 for providing a first bias voltage and a second node 24 for providing a second biasing voltage different from the first biasing voltage. The gate of transistor 16 is coupled to input 26 and a source thereof is coupled to output 28. The gate of transistor 18 is connected to the second node 24. The gate of transistor 20 is connected to the first node 24. The transistor 20 is arranged between the source of the transistor 16 and the drain of the transistor 18.
其他摘要	提供一种源极跟随器电路，其具有电流源，其具有改善的电流特性，激光器驱动装置，半导体激光器装置，电流 - 电压转换电路和光接收电路。激光器驱动装置，半导体激光装置，电流 - 电压转换电路和光接收电路中的每一个包括源极跟随器电路。源极跟随器电路10包括源极跟随器级12和偏置级14.源极跟随器级具有III-V族化合物半导体晶体管16,18和20.偏置级14具有用于提供第一偏置电压的第一节点22和第二节点24，用于提供与第一偏置电压不同的第二偏置电压。晶体管16的栅极耦合到输入26，并且其源极耦合到输出28.晶体管18的栅极连接到第二节点24.晶体管20的栅极连接到第一节点24.晶体管20是布置在晶体管16的源极和晶体管18的漏极之间。
授权日期	2003-05-20
申请日期	2001-03-29
专利号	US6567441
专利状态	授权
申请号	US09/841694
公开（公告）号	US6567441
IPC 分类号	H01S5/00 \| H01S5/042 \| H01S5/0683 \| H01S5/062 \| H03F3/08 \| H03F3/50 \| H01S3/00
专利代理人	-
代理机构	SMITH,GAMBRELL & RUSSELL,LLP
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/35401
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	FURUDATE, SEIGO,TSUMURA, EIJI,SAWADA, SOSAKU,et al. Source follower circuit, laser driving apparatus, semiconductor laser apparatus, current-voltage convertion circuit, and light receiving circuit. US6567441[P]. 2003-05-20.