EV6923-S-00A – HIGH EFFICIENCY SYNCHRONOUS RECTIFICATION EV BOARD

NOTICE:

The information in this document is subject to change without notice. Users should warrant and guarantee that third

party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not

assume any legal responsibility for any said applications.

EV6923-S-00A Rev. 1.0

www.MonolithicPower.com

5

1/11/2016

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QUICK START GUIDE

The demo board is intended to implement the synchronous rectifier in an LLC resonant converter with

center-tap secondary winding. If the converters implement diode rectification,

1. Remove the diodes rectifiers from the board as the Fig.5 shows.

2. Connect the center-tap and other two secondary windings of transformer as the Fig.6 shows.

3. Connect the Vout and GND pins on MP6923GS demo board as the Fig. 6 shows.

4. Turn the power supply on. The IC will start up automatically.

Lr

Cr

T1

Half Bridge

Driver

M1

M2

D1

D2

Vout

Figure 5—How to disconnect the diode rectifiers

Lr

Cr

T1

Half Bridge

Driver

M1

M2

Vout

MP6923

Demo Board

CT

LS1

LS2

Vout

GND

Figure 6—How to connect the EV6923-S-00A