SLUAB19 May   2025 LM25180-Q1 , LM5155-Q1 , SN6507-Q1 , UCC14240-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Low-Voltage Isolated Bias Power Supply
    2. 1.2 High-Voltage Bias Power Supply
  5. 2Centralized Isolated Bias Power Supply Architecture
  6. 3Semi-Distributed Isolated Bias Power Supply Architecture
  7. 4Bias Power Supply Using DC-DC Converter Module
  8. 5Isolated Bias Power Supply Using Gate Driver to Drive the Transformer
  9. 6Redundancy in the Isolated Bias Power Supply Architecture
  10. 7Summary
  11. 8Terminology

5 Isolated Bias Power Supply Using Gate Driver to Drive the Transformer

Figure 5-1 shows how gate drivers can be used to drive the transformer to generate the isolated bias power supply. In this approach, PWM signals of certain duty cycle are fed to the gate driver, which drives the transformer to generate isolated bias power supply. A clock, microcontroller, or a particular IC (and so forth) can be used as the PWM generator.

Architecture Using Gate Driver to Drive the Transformer for Isolated Bias Power GenerationFigure 5-1 Architecture Using Gate Driver to Drive the Transformer for Isolated Bias Power Generation

The following devices can be used as the preferred choice for PWM generator and non-isolated gate driver to drive a transformer to generate isolated bais power for isolated gate driver:

  • PWM controller: UCC2843A-Q1, UCC28C56H-Q1, TPS40210-Q1, LM25037-Q1
  • Gate Driver: UCC27624-Q1, UCC27282-Q1