Patent ID: 8610422
Filing Date: 2013-12-17
Classification: H03F,H03M

Abstract:
1. A current mirror circuit, comprising: a first capacitor; a first transistor having a gate coupled to a first plate of the first capacitor, the first transistor regulating current in an electronic component connected to the first transistor based on voltage at the gate; a second transistor having a drain and a gate coupled to the gate of the first transistor to control the voltage at the gate of the first transistor; a second capacitor coupled between the gate of the first transistor and a low reference voltage source; and a first switch selectively coupling a second plate of the first capacitor to one of a high reference voltage source and the low reference voltage source, wherein the first capacitor is configured to transfer a positive charge to the second capacitor responsive to coupling the second plate of the first capacitor to the high reference voltage source.