Patent · US Active

Average input current estimation based on primary side current sense

US9071147B2 · kind B2 · utility

2Cited by

1References

13Claims

0Family size

Assignee

DIALOG SEMICONDUCTOR INC. · DE

Inventors

Guang Feng · Campbell, US
Xiaoyan Wang · Milpitas, US
Liang Yan · Milpitas, US
Chuanyang Wang · Campbell, US
Clarita Poon · Pleasanton, US

Key dates

Filing date	Feb 19, 2013
Grant date	Jun 30, 2015
Priority date	—
Expiry date	Jul 19, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/0009
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The embodiments herein describe a power converter including a controller that estimates input current of the power converter. The controller estimates the input current without explicitly sensing the input current. The estimated input current can be used in various applications such as regulating power factor and total harmonic distortion as well as estimating current required to maintain proper operation of a dimmer switch in light emitting diode lamp systems.

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