Patent · US Active

Adaptive low-power zero-cross comparator for discontinuous current mode operated switching mode power supply

US9473029B2 · kind B2 · utility

0Cited by

9References

8Claims

0Family size

Assignee

DIALOG SEMICONDUCTOR INC. · DE

Inventors

Jindrich Svorc · Swindon, GB
Martin Faerber · Munich, DE

Key dates

Filing date	May 16, 2013
Grant date	Oct 18, 2016
Priority date	—
Expiry date	Jul 4, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/0058
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A time off estimator and an adaptive controller implemented on an integrated circuit to emulate current dependent zero crossing circuitry to permit improved performance of a buck type switching mode power supply. The time off estimator circuit is enhanced by an automatic correction circuit for the timing of a zero crossing where energy to a reference capacitor returns to zero and is turned off awaiting the next cycle where the capacitor is again charged and discharged.

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