User`s guide

ManualsBrandsVivanco ManualsAdapterUNIVERSAL SWITCHMODE AC TO DC MAINS ADAPTERS WITH USB CHARGING FUNCTION

Board Layouts and Schematics

© 2008 Microchip Technology Inc. DS70320B-page 79

FIGURE A-5: FULL-BRIDGE ZVT SCHEMATIC

+HV_BUS

DRIVE_B

LIVE_GND

DRIVE_D

DRIVE_B

DRIVE_A

LIVE_GND

BAS16

D4

DRIVE_A

DRIVE_D

DRIVE_C

BRIDGE_B

DRIVE_C

C6C8

ZVT_LEFT_LOW_FIRE

ZVT_LEFT_HIGH_FIRE

-HV_BUS

ZVT_RIGHT_LOW_FIRE

LIVE_DRIVE_SUPPLY

ZVT_RIGHT_HIGH_FIRE

D47

D45

BRIDGE_A

D49

BAS16

D6

BAS16

D3

LIVE_DRIVE_SUPPLY

8

1

6

5

4

3

U4

Connect Resistor and Transformer Directly to Source

and then connect to -HV_BUS

U3

D48

C5C7

8

1

6

5

4

3

BAS16

D2