CIRCUIT SCHEMATIC
WDD20U SERIES
SINGLE & DUAL OUTPUT
Block diagram for WDD20U series with single output
Vi +
Vi -
ON / OFF
Switching
Device
Rectifier
PWM
Controller
Opto -
Isolation
Reference &
Error Amp.
Vo +
Vo -
Trim
Block diagram for WDD20U series with dual output
Vi +
Vi -
ON / OFF
Switching
Device
PWM
Controller
Rectifier
Rectifier
Opto -
Isolation
Reference &
Error Amp.
Vo +
com
Vo -
Trim
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2008.09.23
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