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Power supplies with testable current limiters, and methods of operating same
Power supplies with testable current limiters, and methods of operating same
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机译:具有可测试电流限制器的电源及其操作方法
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摘要
A power supply (20) for providing a desired current to an electric load (23) broadly comprises: a current limiter (21) for providing a desired current; a current sensor (28) for determining the actual current supplied by the current limiter and providing a feedback signal (30, 31) to the current limiter for causing the current limiter to reduce the error between the desired and the actual currents; and a test circuit (24) for temporarily changing the actual current sensed by the current sensor to a level different from the desired current for causing the current limiter to adjust the magnitude of the current provided thereby; whereby the operation of the power supply may be tested. The invention also provides an improved method of operating such a power supply.
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