Patent · US Active

System and method of charging a buffer capacitor

US10862472B1 · kind B1 · utility

4Cited by

8References

20Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Markus Zannoth · Munich, DE
Matthias Bogus · Munich, DE
Christian Heiling · Graz, AT
Ivan Muhoberac · Graz, AT

Key dates

Filing date	Jul 11, 2019
Grant date	Dec 8, 2020
Priority date	—
Expiry date	Jul 11, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/0081
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In accordance with an embodiment, a method includes monitoring a first voltage across a buffer capacitor; activating a first current path between a power supply node and the buffer capacitor when the monitored first voltage is below a first threshold voltage, activating a second current path between the power supply node and the buffer capacitor when the monitored first voltage is below a second threshold voltage, and transferring power from the buffer capacitor to a driver circuit coupled across the buffer capacitor.

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