解决方案查找器

Variable output power supply

Posted by: atulbhakay on Mon, 08/02/2021

Hi ,

I want to design a power supply with following specs

Input = 100VAC to 265VAC

Output = 0V to 5V variable output and current is 5A

Can I use a potentiometer (pot) in pace of the fixed resistor used in the TL431 circuit (the resistor that is connected to secondary return) and get a variable output voltage ?

Kindly advise

Regards

Atul Bhakay

回應

Submitted by PI-Dumbo on Tue, 08/03/2021

Hi Atul Bhakay,

Can you send the schematic of the design?  Thank you.