Heat a borad

[heppoko]

Hi,

I am using to drive 24V 3A DC motor by MD10C. The board gets heat just by connecting the power supply. Temperature is about 60~70 degrees. More more heat when motor is moving. Is this normal? Not burning now but I worry to burn the board. Do I need to cool the board? Everyone use cooling fan?
I know the stress test video, it is heat until 117 degrees with no cooler. Is this no problem?

[Idris]

Hi heppoko,

It is not normal the driver heat up without load. Could you share a few clear photos/video on your hardware setup?

[heppoko]

Thank you for replay.

Connectioin

I only connected from Power unit to driver. The power supply unit I use is TDK-lambda RWS150B-24.

https://www.us.tdk-lambda.com/lp/produc ... sb-series/

heat area

Turn on the power and listen carefully, I hear the high frequency sound from the driver.
I have several MD10C driver boards. Each board is the same heat. Is there any problem with the power supply unit?

[Idris]

Hi heppoko,

Thanks for the clear photos.

The area that you highlighted is 7812 regulator. The heat (on that area) is normal for 24V operation.

Thanks.

[heppoko]

Would you please tell me your thoughts on waste heat for these drivers?