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. However, currently several devices mentioned in the earlier architectures in this paper are available and are specifically targeted for isolated bias power supply applications. These architectures are preferred compared to the approach of using a gate driver to drive a transformer for isolated bias power supply generation.

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