Patent ID: 8766611

Claim:
A reference voltage generation circuit, comprising: a bandgap reference circuit for generating a plurality of initial currents with different temperature coefficients; a base voltage generation circuit coupled to the bandgap reference circuit for duplicating and combining the initial currents into a combined current, and for converting the combined current into one or more base voltages; a bias current source circuit coupled to at least one of the bandgap reference circuit and the base voltage generation circuit for generating one or more bias currents according to at least one of the initial currents; and one or more regulating output circuits, each coupled to the base voltage generation circuit for receiving a corresponding one of the one or more base voltages, coupled to the bias current source circuit for receiving a corresponding one of the one or more bias currents, and converting the received bias current into a respective increment voltage and adding the increment voltage to the base voltage to generate a respective output reference voltage.