STMicroelectronics (ST) has released details of a patented high-efficiency circuit and dedicated optimized power components. This new technology will produce cost savings while helping designers comply with the highest power-efficiency standards. The new circuit and power components are ideally suited for boost or buck converters, which are power devices that are usually used in solar inverters or SMPS (Switched-Mode Power Supplies) for computers and telecom equipment.
Legislation governing energy efficiency and power quality already requires many types of mains-powered equipment to be fitted with Power Factor Correction (PFC) circuitry to minimize energy loss and distortion. These PFC circuits typically combine a power MOSFET, a rectifier diode, an inductor, and a capacitor. Historically, engineers required expensive technology, such as silicon carbide (SiC) for the rectifier diode, to meet high efficiency certification levels such as 80 Plus Bronze, Silver or Gold.