PIC18F2510 MICROCHIP [Microchip Technology], PIC18F2510 Datasheet - Page 147

• Manufacturer Part Number: PIC18F2510
• Description: 28/40/44-PIN FLASH MICROCONTROLLERS WITH 10-BIT A/D AND NANO WATT TECHNOLOGY
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 15-8:
FIGURE 15-9:
 2004 Microchip Technology Inc.
Note 1: The direction bit in the CCP1 Control register (CCP1CON<7>) is written any time during the PWM cycle.
External Switch C
External Switch D
P1A (Active-High)
P1B (Active-High)
P1C (Active-High)
P1D (Active-High)
Note 1: All signals are shown as active-high.
2: When changing directions, the P1A and P1C signals switch before the end of the current PWM cycle at intervals
Shoot-Through
SIGNAL
of 4 T
are inactive at this time.
2: t
3: t
Current
Potential
OSC
P1A
P1B
P1C
P1D
ON
OFF
PWM DIRECTION CHANGE
PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE
, 16 T
is the turn-on delay of power switch QC and its driver.
(1)
(1)
(1)
(1)
(1)
(1)
(1)
is the turn-off delay of power switch QD and its driver.
OSC
or 64 T
DC
OSC
, depending on the Timer2 prescaler value. The modulated P1B and P1D signals
Forward Period
Period
DC
Preliminary
(1)
t1
PIC18F2X1X/4X1X
DC
(Note 2)
t
ON
Reverse Period
t
t = t
(2)
OFF
(3)
OFF
Period
DC
– t
ON
(2,3)
DS39636A-page 145