STDA010
January 2026
LM25180-Q1
,
LM5155-Q1
,
SN6507-Q1
,
UCC14240-Q1
,
UCC34141-Q1
1
Abstract
Trademarks
1
Introduction
1.1
Low-Voltage Isolated Bias Power Supply
1.2
High-Voltage Bias Power Supply
2
Bias Power in Common-Source Configuration of Back-to-Back FETs
3
Bias Power in Common Drain Configuration of Back-to-Back and Bidirectional FETs
3.1
Centralized Isolated Bias Power Supply Architecture
3.2
Semi-Distributed Isolated Bias Power Supply Architecture
3.3
Bias Power Supply Using a DC-DC Converter Module
4
Isolated Bias Power Supply Using Gate Driver to Drive the Transformer
5
Redundancy in the Isolated Bias Power Supply Architecture
6
Summary
7
Terminology
Technical White Paper
Isolated Bias Power Supply Architecture for HEV/EV Single Stage Onboard Chargers