基于ST STM32F334C8 Cortex M4 MCU的数字AC-DC电源供应器方案

useful onformation,thanks

As refer to STM web site

https://www.st.com/en/microcontrollers-microprocessors/stm32f334.html

 

The main peripherals of the STM32F3x4 are:

• High-resolution timer: 217ps, self-compensated versus power supply and temperature drift.
• Ultra-fast comparator: 26ns from analog input to PWM shut-down
• Ultra-fast 12-bit ADC 5Msps (0.2µs)
• Operational amplifier with 5 built-in gain settings and 1% accuracy

The high resolution timer consists of a bank of 6 timers totaling:

• 10 PWM outputs (can be coupled by pairs)
• 10 external events inputs (Current limitation, Zero Voltage / Zero Current Detection…)  and 5 fault inputs

The main features of the high resolution timers are:

• 217ps resolution available for all operating modes
  • Variable duty cycle, variable frequency, Transition mode,…
• A number of features allows to unload the CPU
  • One DMA channel per timer
  • Built-in burst mode controller, topology specific modes: push-pull, resonant.
• Numerous interconnects between timers to
  • Reset/Start adjacent timers
  • Set / Reset / Toggle other outputs
• Transparent high-resolution implementation (equivalent to 4.6GHz timer) for easy programming