Patent ID: 9000832
Filing Date: 2015-04-07
Classification: H03K

Abstract:
1. A switch, which is provided between a power source and a loading, comprising: a first switching member having a first terminal, a second terminal, and a control terminal, wherein the first terminal is electrically connected to the power source, and the second terminal is electrically connected to the loading; the control terminal controls conduction between the first terminal and the second terminal; and a latch circuit including a first transistor and a second transistor which are electrically connected to each other, wherein the first transistor is electrically connected to the first terminal of the first switching member, and the second transistor is electrically connected to the control terminal of the first switching member; wherein, when a trigger voltage is provided to the second transistor, the second transistor and the first switching member are conducted to make the first transistor conductive; after the first transistor becoming conductive, the first transistor provides electricity to the second transistor, which keeps the second transistor conductive.