Supply stage has secondary side measurement circuit with input from transformer output, device for evaluating voltage caused by transformer during switching phase for magnetically charging transformer

摘要

The device has a primary side connected to a supply voltage and electrically isolated from a secondary side. The secondary side contains a measurement circuit whose input is connected to the transformer's secondary side output with an associated evaluation device for evaluating the voltage at the secondary side caused by the transformer during the switching phase of a switching regulator for magnetically charging the transformer. The device has a primary side (3) connected to a supply voltage and electrically isolated from a secondary side (4), whereby the supply stage (1) operates as a switching regulator, with a switching control unit (5) and a transformer (2). The secondary side contains a measurement circuit (7) whose input is connected to the transformer's secondary side output with an associated evaluation device (8) for evaluating the voltage at the secondary side caused by the transformer during the switching phase of the switching regulator for magnetically charging the transformer.