Patent · US Active

Bandgap reference starting circuit with ultra-low power consumption

US11815924B2 · kind B2 · utility

0Cited by
11References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 21, 2022
Grant dateNov 14, 2023
Priority date—
Expiry dateDec 21, 2042

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05F3/30
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A bandgap reference starting circuit with ultra-low power consumption includes a current generating unit and a first bias voltage generating unit respectively connected with a power supply voltage. The current generating unit generates an nA-level current and a starting voltage for the first bias voltage generating unit. The first bias voltage generating unit is started and generates a first bias voltage according to the starting voltage, and output the first bias voltage to a bandgap reference circuit to start up the bandgap reference circuit. The starting circuit can normally start up a bandgap reference circuit of nA level, and has an nA-level working current, thereby reducing power consumption and saving the cost.

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