Figure 194. Push-Pull With Deadtime - ST STM32G4 Series Reference Manual

Advanced arm-based 32-bit mcus

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High-resolution timer (HRTIM)

A deadtime insertion unit allows to generate a couple of complementary signals from a

single reference waveform, with programmable delays between active state transitions. This

is commonly used for topologies using half-bridges or full bridges. It simplifies the software:

only 1 waveform is programmed and controlled to drive two outputs.

The Dead time insertion is enabled by setting DTEN bit in HRTIM_OUTxR register. The

complementary signals are built based on the reference waveform defined for output 1,

using HRTIM_SETx1R and HRTIM_RSTx1R registers: HRTIM_SETx2R and

HRTIM_RSTx2R registers are not significant when DTEN bit is set.

Two deadtimes can be defined in relationship with the rising edge and the falling edge of the

reference waveform, as in

Figure 194. Push-Pull with deadtime

Deadtime falling

RM0440 Rev 1

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