How does an SMPS Power Supply Work?

In this article, we’ll go into detail, how an SMPS or Switched Mode Power Supply works on a control board. We’ll talk about how the input filter works, initial rectification or conversion of AC into DC voltage, the switching circuit, high frequency transformer and galvanic isolation, feedback control circuit, and output rectification and filter. We’ll […]

How does a Control Board Work?

Important Note Never attempt to repair circuit boards in appliances or HVAC systems unless you are directly supervised by a licensed professional engineer and doing so under approved ISO and UL processes. Anatomy of a Control Board In this article, I’ll do a detailed walkthrough of a common refrigerator control board – the WR55x10942, go […]