A major cause of losses in a conventional power supply using a 50/60-Hz transformer is the bridge rectifier. This article shows how to build a “greener” rectifier, substantially reducing losses by ...

The phase-shifted full bridge (PSFB) shown in Figure 1 is popular in applications >500 W because it can achieve soft switching on its input switches for high converter efficiency. Although switching ...

Helium-filled half-wave rectifier. A 4-pin base with brass shell and ceramic insulator. Tipped S-shaped envelope. Maker's stamping on base reads: "Raytheon / Type B Patented / June 27, 1922 July 7, ...

Inductor-inductor-capacitor (LLC) resonant converters have a couple of appealing characteristics for applications requiring an isolated DC/DC converter such as minimal switching losses, no reverse ...

A plastic 4-pin base with tipped S-shaped envelope. Donor's card reads: "Full wave rectifier made by the Eveready Raytheon Company about 1929. A gaseous type rectifier without filament or heater, an ...