Additional Dead-Band Operating Modes - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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Mode Mode Description
EPWMxA Out = EPWMxA In (No Delay)
6
EPWMxB Out = EPWMxA In with Falling Edge Delay
EPWMxA Out = EPWMxA In with Rising Edge Delay
7
EPWMxB Out = EPWMxB In with No Delay
Mode Description
EPWMxA and EPWMxB signals are as defined by OUT-MODE bits.
EPWMxA = A-path as defined by OUT-MODE bits.
EPWMxB = A-path as defined by OUT-MODE bits (rising edge delay or delay-
bypassed A-signal path)
EPWMxA = B-path as defined by OUT-MODE bits (falling edge delay or delay-
bypassed B-signal path)
EPWMxB = B-path as defined by OUT-MODE bits
EPWMxA = B-path as defined by OUT-MODE bits (falling edge delay or delay-
bypassed B-signal path)
EPWMxB = A-path as defined by OUT-MODE bits (rising edge delay or delay-
bypassed A-signal path)
Rising edge delay applied to EPWMxA / EPWMxB as selected by S4 switch (IN-
MODE bits) on A signal path only.
Falling edge delay applied to EPWMxA / EPWMxB as selected by S5 switch (IN-
MODE bits) on B signal path only.
Rising edge delay and falling edge delay applied to source selected by S4 switch
(IN-MODE bits) and output to B signal path only.
(1)
When this bit is set to 1, user should always either set OUT_MODE bits such that Apath = InA or OUTSWAP bits such that
EPWMxA=Bpath. Otherwise, EPWMxA will be invalid.
SPRUHE8E – October 2012 – Revised November 2019
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Table 7-15. Classical Dead-Band Operating Modes (continued)
Table 7-16. Additional Dead-Band Operating Modes
(1)
Copyright © 2012–2019, Texas Instruments Incorporated
DBCTL[POLSEL]
S3 S2
0 or 1 0 or 1
0 or 1 0 or 1
DBCTL[DEDB-
MODE]
S8
0
0
0
0
0
1
C28 Enhanced Pulse Width Modulator (ePWM) Module
ePWM Submodules
DBCTL[OUT_MODE]
S1 S0
0 1
1 0
DBCTL[OUTSWAP]
S6 S7
0 0
0 1
1 0
1 1
X X
X X
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