LOW-PROFILE HIGH-FREQUENCY OFF-LINE QUASI-RESONANT CONVERTER

CIRCUIT OPERATION This paper describes the development of a 1.4 MHz secondary-side quasi-resonant off-line dc-to-dc converter. The material presented covers operation of the half-bridge circuit, derivation of the circuit equations, a design exam­ ple, prototype description and comparisons between simu­ lations and actual circuit performance. L2