Patent ID: 9287784
Filing Date: 2016-03-15
CPC Classification: H02M

Claim Text:
1. An adjustable bias current generator circuit for use in a power converter, comprising: a reference current circuit coupled to generate a constant reference current, wherein the reference current circuit includes: a comparison circuit coupled to the reference current circuit to generate an adjustable reference current, wherein the comparison circuit includes: an output circuit coupled to the reference current circuit and the comparison circuit to generate the adjustable bias current, wherein the output circuit includes a third current mirror circuit including a sixth transistor coupled to a seventh transistor, wherein the reference current circuit and the comparison circuit are coupled to receive the constant reference current and the adjustable reference current from the sixth transistor, and wherein the seventh transistor is coupled to the sixth transistor to mirror a sum of the constant reference current and the adjustable reference current to generate the adjustable bias current.