[DigiKey "Smart Manufacturing, Non-stop Happiness" Creative Competition] - Current Conversion Board

lansebuluo

[DigiKey "Smart Manufacturing, Non-stop Happiness" Creative Competition] - Current Conversion Board [Copy link]

 

The external interface CN1 provides power, including +12V, -12V, +5V, +5V1, -5V is not used, and +5V1 is isolated from other power supplies.

5V to 3.3V power supply, using voltage regulator chip MET1117A33.

The voltage-to-current conversion circuit is as shown below. This is the principle I saw recently and I’ll try it this time.

Voltage output expands load capacity.

WIFI to serial port module, this model has never been used, purchased from Taobao.

DAC conversion board interface, this module has been explained in a post.

This interface is intended for HID input.

This is the final rendering. I don’t know why the WIFI module came out. I won’t study it because there is not enough time and there is still a lot of work to be done.

lugl4313820

Congratulations to you for completing such a beautiful development board. I hope you can win the grand prize.

lansebuluo

lugl4313820 posted on 2023-12-11 07:22 Congratulations to the boss for completing such a beautiful development board. I hope to win the grand prize.

Thank you, time is running out, first try to finish it, then improve it

秦天qintian0303

How is negative voltage generated?

jobszheng5

This PCB design is really nice

lansebuluo

Qintianqintian0303 posted on 2023-12-11 09:02 How is negative voltage generated?

Does it refer to the negative power supply, which is provided externally?