Patent ID: 9239586
Filing Date: 2016-01-19
CPC Classification: G05F

Claim Text:
1. A leakage-current start-up reference circuit comprising: a reference circuit unit having a start-up terminal and a control terminal and generating a reference current; a trigger unit comprising a first transistor with source, gate and drain terminals, the drain terminal of the trigger unit being connected to the start-up terminal of the reference circuit unit, wherein the trigger unit starts up the reference circuit unit through the start-up terminal; a leakage-current generator comprising a second transistor with a drain terminal, the second transistor being a gate-drain-tied transistor; and a disable control unit comprising a third transistor with source, gate and drain terminals, the drain terminal of the leakage-current generator, the gate terminal of the trigger unit and the drain terminal of the disable control unit being joined at a node, and the gate terminal of the disable control unit being connected to the control terminal of the reference circuit unit, wherein the leakage-current generator provides a leakage-current for the disable control unit.