BRIDGE SWITCH CONTROL CIRCUIT AND METHOD OF OPERATING THE SAME

摘要

A method of operating a bridge switch control circuit is disclosed for controlling at least one pair of complementary switches. First, a first driving signal, a second driving signal, a first latching signal, and a second latching signal are provided. The first driving signal and the second driving signal drive the complementary switches. Afterward, it is to judge whether the first driving signal triggers one of the complementary switches by a rising-edge manner. If YES, the first latching signal is controlled at a high-level status and the second latching signal is simultaneously controlled at a low-level status. Afterward, it is to judge whether the second driving signal triggers the other of the complementary switches by a rising-edge manner. If YES, the second latching signal is controlled at a high-level status and the first latching signal is simultaneously controlled at a low-level status.

主权项

1. A method of operating a bridge switch control circuit, comprising following steps:
(a) providing a first driving signal, a second driving signal, a first latching signal, and a second latching signal, wherein the first driving signal and the second driving signal are configured to drive at least one pair of complementary switches; (b) judging whether the first driving signal triggers one of the complementary switches by a rising-edge manner; (c) controlling the first latching signal at a high-level status and simultaneously controlling the second latching signal at a low-level status when the first driving signal triggers one of the complementary switches by the rising-edge manner; (d) judging whether the second driving signal triggers the other of the complementary switches by a rising-edge manner; and (e) controlling the second latching signal at a high-level status and simultaneously controlling the first latching signal at a low-level status when the second driving signal triggers the other of the complementary switches by the rising-edge manner.