Patent ID: 7924188

Claim:
A rapid recovery circuit connected with a semiconductor circuit including a reference voltage terminal and a stabilizing capacitor connected with the reference voltage terminal to stabilize a reference voltage of the reference voltage terminal, the rapid recovery circuit comprising: a current source for charging the stabilizing capacitor; a comparator which charges the stabilizing capacitor by using the current source when the semiconductor circuit recovers from a power down state to a normal operational state, and stops the charging of the stabilizing capacitor by the current source when the reference voltage of the reference voltage terminal approaches a desired reference voltage as a result of the charging; and a bias circuit, wherein the bias circuit includes a first current path for generating a threshold voltage according to which the comparator stops the charging of the stabilizing capacitor by the current source; a second current path for generating the reference voltage of the reference voltage terminal; and a current mirror circuit for providing current mirroring of a current of the first current path to the second current path.