Figure 98. Dead-Time Insertion Performed For Complementary Outputs - Holtek HT32F54231 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F54231/HT32F54241/HT32F54243/HT32F54253
Dead Time Generator
An 8-bit dead time generator function is included for channels 0 ~ 2. The dead time insertion
is enabled by setting both the CHxE and CHxNE bits. The relationship between the CHxO and
CHxNO signals with respect to the CHxOREF signal is as follows:
The CHxO signal is the same as the CHxOREF signal except for the rising edge which is delayed
▆
with a dead time relative to the reference signal rising edge.
The CHxNO is the opposite of the CHxOREF signal except for the rising edge which is delayed
▆
with a dead time relative to the reference signal falling edge.
CHxOREF
CHxO
CHxNO
When dead-time greater than negative pulse
CHxO
CHxNO
CHxOREF
CHxO
CHxNO
When dead-time is greater than positive pulse
CHxO
CHxNO

Figure 98. Dead-Time Insertion Performed for Complementary Outputs

If the delay is greater than the width of the active output of CHxO or CHxNO, then the
corresponding PWM pulses will not be generated.
Rev. 1.00
CHxP=0, CHxNP=0, CHMOE=1, CHxE=1, CHxNE=1
Dead-time
CHxP=0, CHxNP=0, CHMOE=1, CHxE=1, CHxNE=1
Dead-time
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Dead-time
Dead-time
Dead-time
Dead-time
January 28, 2022