电流的限制

Limiting current

Abstract

In an embodiment, a power-supply controller includes a switching regulator and a current limiter. The switching regulator is configured to generate an input current such that an output voltage is generated in response to the input current and an input voltage, and the current limiter is configured to limit the input current in response to a quantity that is related to a ratio of the output voltage divided by the input voltage. For example, an embodiment of such a power-supply controller may be able to limit the output or load current from a power supply to a set level by limiting the input current in response to a quantity that is related to the ratio (e.g., the boost ratio) of the output voltage to the input voltage.
在一实施例中,一种电源供应器的控制器是包含一切换式调节器以及一电流限制器。该切换式调节器被配置以产生一输入电流,使得一输出电压被产生以响应于该输入电流以及一输入电压,并且该电流限制器被配置以响应于一个相关该输出电压除以该输入电压的一比例的量来限制该输入电流。例如,此种电源供应器的控制器的一实施例能够通过响应于一个相关该输出电压至该输入电压的比例(例如,升压比例)的量来限制该输入电流,以限制来自一电源供应器的输出或负载电流至一设定的位准。

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Cited By (1)

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    CN-105322810-AFebruary 10, 2016力林科技股份有限公司Power conversion apparatus and protection method thereof while feedback current signal being abnormal