About HLabi.1

HLabi.1 · 2021-07-07

I am trying to use the Nucleo-F429ZI board to read the ZVS signal.This is possible using an STM32F100 on PC15 GPIO pin, according to UM1631 (page 19).https://www.st.com/resource/en/user_manual/dm00082165-stevaliht005v2--33-v-control-of-acstriac-with-...

HLabi.1 · 2021-06-21

HLabi.1 · 2021-07-07

Is there a way to test the diodes ?

HLabi.1 · 2021-07-07

Yes, I am able to see the signal on the scope.I used this code:static GPIO_InitTypeDef GPIO_InitStruct;int main(void){ HAL_Init();SystemClock_Config();__HAL_RCC_GPIOA_CLK_ENABLE(); GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = ...

HLabi.1 · 2021-07-07

I am using a 5V external positive power supply to power the nucleo board. The power supply, the board and the ZVS circuit are sharing the same GND=0V.If I disconnect the GPIO pin, I obtain the expected red curve on the oscilloscope. (figure below). T...

HLabi.1 · 2021-07-07

Expected is the red curve. Obtained is the blue line as shown in the figure above.Here is the figure again:

HLabi.1 · 2021-07-07

I'm using also the same configuration. The problem is that i can't see the expected ZVS on the oscilloscope.

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How is it possible to read the zero voltage switching signal (ZVS), using a nucleo board 144?

How is it possible to power the Nucleo-144 board with an external NEGATIVE power supply (VDD= 0V, VSS= -3v3)?

Re: How is it possible to read the zero voltage switching signal (ZVS), using a nucleo board 144?

Re: How is it possible to read the zero voltage switching signal (ZVS), using a nucleo board 144?

Re: How is it possible to read the zero voltage switching signal (ZVS), using a nucleo board 144?

Re: How is it possible to read the zero voltage switching signal (ZVS), using a nucleo board 144?

Re: How is it possible to read the zero voltage switching signal (ZVS), using a nucleo board 144?