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简单的电源FET驱动器是孤立的和直流耦合

资料介绍
摘要:一个隔离变压器驱动IC ( MAX845 )和小的外部变压器产生的功率FET的隔离门极控制信号。

Maxim > App Notes > COMMUNICATIONS CIRCUITS

Keywords: galvanic isolation, transformer-driver, power FET, power electronics Mar 14, 2005

APPLICATION NOTE 3465
Simple Power-FET Driver is Isolated and DC-
Coupled

Abstract: An isolated transformer-driver IC (MAX845) and small external transformer produce an isolated gate-
control signal for a power FET.

Designers of power electronic circuits must often drive power switches that feed DC, AC, or power signals to a
variety of loads. Logic-level electronic circuits always provide the driving signals. In general, however, the power
sources and their loads have reference levels different from that of the control circuitry (ground).

An isolated transformer-driver IC (MAX845) serves as a control-signal generator. The signal……
简单的电源FET驱动器是孤立的和直流耦合
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