Magamp system
A method of controlling output on the secondary side of a transformer's power supply circuit using a saturable core. Before the core saturates, it remains in a high impedance off state, and after saturation, it switches to a low impedance on state. This characteristic is used to control output. By varying the bias, the on and off times are adjusted to regulate the output. The mag-amp method offers cost-effectiveness 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.