Patent · US Active

Synchronous rectification controller

US9979309B1 · kind B1 · utility

3Cited by
1References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 19, 2017
Grant dateMay 22, 2018
Priority date
Expiry dateJul 19, 2037

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02B70/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In one example, a circuit for controlling synchronous rectification includes a first current compensation module, a second current compensation module, and a control module. The first current compensation module is configured to provide a first current into parasitic capacitance at a drain pin when a drain of a synchronous rectifier draws current from the parasitic capacitance. The drain pin is coupled to the drain of the synchronous rectifier via a resistor. The first current compensation module is further configured to generate a triggering signal using the first current. The second current compensation module is configured to draw a second current from the parasitic capacitance when the drain of the synchronous rectifier provides current into the parasitic capacitance and generate an arming signal using the second current. The control module is configured to activate the synchronous rectifier using the triggering signal and the arming signal.

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