Patent ID: 9379601
Filing Date: 2016-06-28
CPC Classification: G05F,H02M,H03K

Claim Text:
1. A charge module configured to pre-charge a control node to a pre-charged voltage, such that in a case a control module outputs a control voltage, a drive module is activated according to a gate voltage summed by the control voltage and the pre-charged voltage, wherein the charge module comprises: a first switch configured to provide a first voltage to an operation node; a charge switch configured to be switched on corresponding to the first voltage of the operation node, so as to charge the control node via an end of the charge switch; and a second switch configured to receive the gate voltage on the control node via a control end of the second switch and provide a second voltage to the operation node according to the gate voltage, wherein both of the control end of the second switch and the end of the charge switch are connected to the control node; wherein, in a first case that the gate voltage is not greater than a predetermined voltage, in one operating state of charging the control node, the first switch is switched on, the second switch is switched off, and the charge switch is switched on concurrently, and in a second case that the gate voltage is greater than the predetermined voltage, the second switch provides the second voltage to the operation node, such that the charge switch is switched off and the control node does not be charged.