Magamp method

A method of controlling output on the secondary side of a power supply circuit's transformer using a saturable core. This method leverages the property where the core remains in an off state with high impedance before saturation, and switches to an on state with low impedance after saturation. Output is controlled by changing the bias to vary the duration of the on and off states. The magamp method is cost-effective when voltage is low and current is high. Therefore, it is commonly used in power supplies for desktop computers, servers, copiers, printers, and mobile phone base stations.