Specifications

dsPIC33F/PIC24H Family Reference Manual
DS70323E-page 43-100 © 2008-2012 Microchip Technology Inc.
Figure 43-52: Current Reset PWM
External current comparator resets PWM counter. PWM cycle restarts earlier than the programmed period.
This is a Constant On-Time Variable Frequency PWM mode.
Programmed
Period
Period Value
External Reset
Duty Cycle
Programmed Period
Duty Cycle
Duty Cycle
PWMxH/L
New
Period
Duty Cycle Duty Cycle
EXTREF
Fault Source
CMREF
Targeted Voltage
PID
ADC
Virtual I/O
(1)
DAC
MUX
Comp
INTREF
Control
AV DD /2
dsPIC33FJXXGSXXX
+
AC IN
L
I
L
PWMxH/L
D
V
OUT
COUT
˜
High-Speed
PWM Generator
˜
PWMxH/L
Note 1: Applicable only to devices with re-mappable I/O.