Gate Drive Transformer Design Guide

The lph8045 series is a coupled inductor transformer that can be wired as a gate drive transorme r.

Gate drive transformer design guide.

Most gate drive transformers are used with high speed switching devices such as field effect transistor fet and insulated gate bipolar transistor igbt electronics. Based on a single turn he calculated the core area needed and then went looking for a core. Precise engineering is essential at every stage of designing a circuit and it is equally important in the design of the components. The final design would be greatly simplified if he could meet the requirements using single turn windings.

Design procedure for ground referenced and high side gate drive circuits ac coupled and transformer isolated solutions are described in great details. Two of the critical components to control when designing a gate drive transformer are the leakage inductance and distributed capacitance. 12 steps for designing gate drive transformers february 22 2019 august 11 2020 bhuvana madhaiyan sampath palaniappan gate drivers power supply smps switched mode following these 12 steps when designing gate drive transformers will ensure a long component life and optimal performance. Coilcraft s off the shelf gate drive transformers simplify the design of your gate drive circuit and shorten design cycle time.

The basic gate drive transformer has several design varia. Several important factors need to be considered when designing an optimized gate drive transformer gdt. Coilcraft s off the shelf gate drive transformers simplify the design of your gate drive circuit and shorten design cycle time. A guide to gate drive transformers.

One component that must be carefully designed is the gate drive transformer in a switch mode power supply smps. Gate drive transformers are essentially pulse transformers that are used to drive the gate of an electronic switching device. The common schematics and their corresponding turns ratios with several design variations to design gate drive transformers of an electronic switching device are presented. Gate drive transformers gts are a key component in many modern electronic systems.

This article discusses several gdt design considerations as well as ideal applications for their use. They also provide impedance matching and voltage isolation. A gate drive transformer is needed in a smps to control the timing of the circuit. Gate drive transformers are used to modify the voltage level to a gate.

Assum ing optimal values for rise time droop and overshoot the application is what discriminates the gate drive transformer from other transformers. A special chapter deals with the gate drive requirements of the mosfets in synchronous rectifier applications.