Patent · US Active

Bandgap module and linear regulator

US11829171B1 · kind B1 · utility

0Cited by
2References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 20, 2022
Grant dateNov 28, 2023
Priority date—
Expiry dateJun 28, 2042

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05F3/267
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A bandgap module and a linear regulator are provided. The linear regulator includes the bandgap module and an error amplifier. The voltage supply voltage includes a bandgap circuit, a lowpass filter, and a start-up module. The voltage supply voltage generates a bandgap voltage. The lowpass filter filters the bandgap voltage and generates a reference voltage accordingly. The start-up module includes a first start-up circuit and a second start-up circuit. The bandgap voltage is increased to a predefined value when the bandgap module operates in a first phase. The bandgap voltage maintains at the predefined value when the bandgap module operates in a second phase. The second phase is after the first phase.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.