Current sensing module and power conversion apparatus and electronic apparatus using the same

摘要

A current sensing module and a power conversion apparatus and an electronic apparatus using the same are provided. The current sensing module is suitable for detecting a first load current flowing through a first load. The current sensing module includes a sampling stage circuit and an output stage circuit. The sampling stage circuit couples across the first load and selectively exchanges coupling nodes between the sampling stage circuit and the first load by a multiplex switching means, so as to sample the first load current flowing along a first direction or a second direction, and thus generate a sampling signal. The output stage circuit is coupled to the sampling stage circuit and switches coupling nodes between the output stage circuit and the output terminal of the sampling stage circuit, so as to generate a current indication signal indicating the magnitude of the first load current according to the sampling signal.

主权项

1. A current sensing module, adapted to detect a first load current flowing through a first load, the current sensing module comprising:
a sampling stage circuit, coupled across the first load, and configured to selectively exchange coupling nodes between the sampling stage circuit and the first load by applying a multiplex switching means according to a current direction of the first load current, so as to sample the first load current flowing along a first direction or a second direction, and thus generate a sampling signal; and an output stage circuit, coupled to the sampling stage circuit, and switching coupling nodes between the output stage circuit and an output terminals of the sampling stage circuit in collaboration with a switching timing of the sampling stage circuit, so as to generate a current indication signal for indicating a magnitude of the first load current according to the sampling signal.