Texas Instruments C2000 Workshop Guide And Lab Manual

ePWM
C2000 Microcontroller Workshop - Control Peripherals 7 - 29
The PWM trip zone has a fast, clock-independent logic path to the PWM output pins where the
outputs can be forced to high impedance. Two actions are supported: One-shot trip for major
short circuits or over-current conditions, and cycle-by-cycle trip for current limiting operation.
Trip-Zone Features
♦ Trip-Zone has a fast, clock independent logic path to high-impedance
the EPWMxA/B output pins
♦ Interrupt latency may not protect hardware when responding to over
current conditions or short-circuits through ISR software
♦ Supports: #1) one-shot trip for major short circuits or over
current conditions
#2) cycle-by-cycle trip for current limiting operation
CPU
core
P
W
M
O
U
T
P
U
T
S
EPWMxTZINT
TZ6
TZ5
TZ4
TZ3
TZ2
TZ1
Over
Current
Sensors
Cycle-by-Cycle
Mode
One-Shot
Mode
EPWMxA
EPWMxB
COMPxOUT
Digital
Compare
CPU
SYSCTRL
eQEP1
EMUSTOP
CLOCKFAIL
EQEP1ERR
The power drive protection is a safety feature that is provided for the safe operation of systems
such as power converters and motor drives. It can be used to inform the monitoring program of
motor drive abnormalities such as over-voltage, over-current, and excessive temperature rise. If
the power drive protection interrupt is unmasked, the PWM output pins will be put in the high-
impedance state immediately after the pin is driven low. An interrupt will also be generated.

Texas Instruments C2000 Specifications

General

Brand	Texas Instruments
Model	C2000
Category	Microcontrollers
Language	English