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Associate
April 15, 2025
Question

H bridge driving Signal generation with 100us dead time

  • April 15, 2025
  • 1 reply
  • 496 views

This is the output from an UPS inverter. they are driving signals of four mosfets of H-Bridge.
I can generate same signals using stm32f103 advanced motor conotrol timer(TIM1).
center aligned pwm and complimentary output with maximum 20us dead time.
The problem is, stm32f103 cant give more than 20us dead time. But i need 100us for my project.
Is there any other way to generate these signals ?
Thanks

1 reply

ST Employee
April 15, 2025

Hello @jubaid_h

Consider using STM32G474 with more advanced timer features and precise control of dead time through HRTIM! 

 

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jubaid_hAuthor
Associate
April 15, 2025

its  not possible to change the device right now. is there any other way like configuring several timers ?