MP1907―100V, 2.5A, HIGH FREQUENCY HALF-BRIDGE GATE DRIVER

MP1907 Rev. 1.1

www.MonolithicPower.com

14

11/20/2013

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Active-Clamp Forward Converter

In active-clamp forward converter topology, the

MOSFETs are driven alternately. The high-side

reset the power transformer in a lossless manner.

This topology lends itself well to run at duty

cycles exceeding 50%. For these reasons, the

input voltage may not be able to run at 100V for

this application.

EN

INH

INL

VSS

DRVL

SW

DRVH

BST

NC

VDD

DRVL

DRVL

1

2

3

4

5

10

9

8

7

6

EN

INH

INL

Up to 100 V

VDD

9V to 18V

10µF

+

MP1907

Secondary

Circuit

Figure 4—Active-clamp Forward Converter