Stmicroelectronics international n.v. (20250103081). CORRECTION CIRCUIT FOR BANDGAP CIRCUIT

CORRECTION CIRCUIT FOR BANDGAP CIRCUIT

Organization Name

stmicroelectronics international n.v.

Inventor(s)

Jean-Pierre Blanc of Theys FR

Sarah Verhaeren of Le Versoud FR

CORRECTION CIRCUIT FOR BANDGAP CIRCUIT

This abstract first appeared for US patent application 20250103081 titled 'CORRECTION CIRCUIT FOR BANDGAP CIRCUIT

Original Abstract Submitted

the present description concerns a correction circuit for a bandgap circuit comprising a first bipolar transistor and a second bipolar transistor, the bandgap circuit being configured to deliver a temperature-stable dc voltage based on the first and second bipolar transistors, the correction circuit being configured to generate a correction current equal to a difference in the base currents of said first and second transistors, and inject the correction current on the emitter of one of said first and second bipolar transistors to correct an error on the temperature-stable voltage resulting from a current gain difference between said first and second bipolar transistors.