Vivanco UNIVERSAL SWITCHMODE AC TO DC MAINS ADAPTERS WITH USB CHARGING FUNCTION Guía de usuario Pagina 83

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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
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