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	Bipolar current source based on a unipolar power supply
	ALFREY, ANTHONY J.
	2006-04-11
著作权人	ALFREY ANTHONY J
专利号	US7024864
国家	美国
文献子类	授权发明
其他题名	Bipolar current source based on a unipolar power supply
英文摘要	An adjustable bipolar current source for a load, such as a thermoelectric cooler, includes a voltage-controlled power supply having a unipolar output, and an H-bridge. At least one of the two active elements on a first side and at least one of the two active elements on a second side of the H-bridge comprises an active conductive element responsive to a control signal to set a magnitude of current flow through the active conductive element. Control logic provides the control signals to the active elements on the first and second sides to set the polarity of the current to the load. Logic coupled to the voltage-controlled power supply maintains a supply voltage sufficient to maintain a voltage drop across the active conductive elements within a linear range of operation of the conductive elements. The output of the voltage-controlled power supply is clamped at or near a minimum stable level.
公开日期	2006-04-11
申请日期	2002-12-03
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/36946]
专题	半导体激光器专利数据库
作者单位	ALFREY ANTHONY J
推荐引用方式 GB/T 7714	ALFREY, ANTHONY J.. Bipolar current source based on a unipolar power supply. US7024864. 2006-04-11.

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