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Texas Instruments TMS570LC4357

Texas Instruments TMS570LC4357
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PSCLK
EPWMxA
EPWMxB
EPWMxA
EPWMxB
Start
Clk
One
shot
Pulse-width
PCCTL
[OSHTWTH]
PWMA_ch
Bypass
Divider and
duty control
PSCLK
OSHT
EPWMxA
PCCTL
[CHPEN]
EPWMxA
/8VCLK4
Pulse-width
Start
shot
Clk
One
PCCTL
[OSHTWTH]
1
OSHT
PCCTL[CHPFREQ]
PCCTL[CHPDUTY]
PWMB_ch
Bypass
EPWMxB
EPWMxB
1
0
0
ePWM Submodules
www.ti.com
2034
SPNU563AMarch 2018
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Copyright © 2018, Texas Instruments Incorporated
Enhanced Pulse Width Modulator (ePWM) Module
Figure 35-31. PWM-Chopper Submodule Operational Details
35.2.6.4 Waveforms
Figure 35-32 shows simplified waveforms of the chopping action only; one-shot and duty-cycle control are
not shown. Details of the one-shot and duty-cycle control are discussed in the following sections.
Figure 35-32. Simple PWM-Chopper Submodule Waveforms Showing Chopping Action Only

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