Datasheet

dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04 DS70318F-page 28 © 2008-2012 Microchip Technology Inc.
FIGURE 2-11: AC-TO-DC POWER SUPPLY WITH PFC AND THREE OUTPUTS (12V, 5V, AND 3.3V)
k
4
ADC
Channel
PWM
UART
RX
PWM
PWM
IZVT
VHV_BUS
VOUT
Isolation
Barrier
ADC
Channel
PWM PWM PWM
FET
Driver
FET
Driver
FET
Driver
dsPIC33FJ16GS504
k
6
Analog
Comp.
UART
TX
k
10
k
7
k
9
k
8
k
11
k
5
PWM PWM
ADC
Channel
Analog Comparator
Analog Comparator
ADC Channel
Analog Comparator
ADC
Channel
PWM PWM
PWM
PWM
PWM PWM
3.3V Output
5V Output
I
5V
12V Input
FET
Driver
FET
Driver
FET
Driver
FET
Driver
I
3.3V_3
I
3.3V_2
I
3.3V_1
dsPIC33FJ16GS504
VAC
IPFC
VHV_BUS
|VAC|
k
1
k
2
k
3
FET Driver
ADC
Ch.
ADC
Ch.
PWM
Output
ADC
Ch.
PFC Stage
3.3V Multi-Phase Buck Stage
ZVT with Current Doubler Synchronous Rectifier
5V Buck Stage
Secondary Controller
Primary Controller