In the world of electronics, power supplies are crucial in converting AC (alternating current) from mains power to a stable DC (direct current) required by most electronic circuits. Two common types of power supplies are capacitive and transformer-based . Each has its own set of characteristics, advantages, and disadvantages. In this blog, we’ll explore the differences between capacitive and transformer-based power supplies in detail. 1. What is a Capacitive Power Supply? A capacitive power supply is a type of power supply that uses a capacitor to drop the voltage from the AC mains. The capacitor, in combination with other components, reduces the input voltage to a lower value that can be used by low-power circuits. This type of supply is often used in small, low-power applications where isolation from the mains isn't a critical requirement. Working Principle The key component here is a non-polarized capacitor connected in series with the AC mains. The capacitor limi