DIODE BRIDGE AND CURRENT SOURCE PROVIDE CURRENT LIMITING FOR BIPOLAR SUPPLIES.

被引：0
|
作者：
Hofheimer, Richard W.
机构：
来源：
Electronic Design | 1973年 / 21卷 / 25期
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中图分类号：
TN7 [基本电子电路];
学科分类号：
080902 ;
摘要：
An open-loop system consisting of a four-diode bridge and a unipolar current source provides rapid current limiting for bipolar power supplies. The constant-current generator uses a Darlington connection of transistors to provide regulation. With an output current of 100 ma, the circuit responds to a short-circuit in less than 200 nsec. Although limiting accuracy is less than that of a closed-loop system, the speed is greater, since there are no amplifier-bandwidth limitations.
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