Dc-to-dc converter

摘要: A transformer has a primary winding connected between pair of d.c. input terminals via an on-off switch, and secondary output rectifying smoothing circuit. The voltage applied from the circuit to load is held constant by switching through feedback control. switch driven in either two different prescribed modes depending upon whether converter under normal or light load. In order ascertain magnitude flyback period determination tertiary for providing signal indicative during which exists across after turned off each time. Each compared with reference periods time hysteretic Several other embodiments are disclosed.