Motor
dc
brush
APWM1
APWM2
brush
Motor
APWM4
APWM3
brush
Motor
brush
Motor
DC bus
0
0
0
APRD(2)
APRD(3)
APRD(4)
4,000
5,000
10,000
Slave APWM(2−4) module/s
Phase = 0
°
Master APWM(1) module
Time
Time
APRD(1)
ACMP(1)
0000 0000
APWM1
(o/p pin)
CTR=PRD
(SyncOut)
20,000
7,000
TSCTR
FFFF FFFFh
dc
dc
dc
Applications
444
SPRUH82C – April 2013 – Revised September 2016
Copyright © 2013–2016, Texas Instruments Incorporated
Enhanced Capture (eCAP) Module
Figure 15-15. Multichannel PWM Example Using 4 eCAP Modules