Patent · US Active

Power transistor bias circuit

US10523104B2 · kind B2 · utility

0Cited by

4References

18Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Xinyu Wang · Beijing, CN
Qiang Xie · Shanghai, CN
Liang Chen · Nanhu, CN

Key dates

Filing date	Jun 7, 2019
Grant date	Dec 31, 2019
Priority date	—
Expiry date	Jun 7, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/102
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A direct current-direct current (DC-DC) converter includes an upper transistor, a lower transistor, a first bias circuit and a second bias circuit. A first input end of the first bias circuit is coupled to a first voltage reference, a second input end of the first bias circuit is coupled to a power source (PVDD), and an output end of the first bias circuit is coupled to a gate of the upper transistor to provide a first bias voltage for the gate of the upper transistor. A first input end of the second bias circuit is coupled to a second voltage reference, a second input end of the second bias circuit is coupled to a power ground (PGND), and an output end of the second bias circuit is coupled to a gate of the lower transistor to provide a second bias voltage for the gate of the lower transistor.

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