Power Integrations inrtos highly integrated PFC IC for compact consumer products and PCs

USA: Power Integrations introduced HiperPFS-2, a new family of high-efficiency, active-PFC ICs for offline applications from 100W to 380W.

HiperPFS-2 ICs combine a boost PFC controller, driver, PFC power MOSFET, PFC diode and protection circuits in one package, enabling exceptionally compact designs ideal for small-form-factor power supplies as used in mini-tower PCs, all-in-one PCs, game console adapters and TVs.

The HiperPFS-2 controller uses a variable-frequency CCM algorithm providing up to 97 percent efficiency across the load spectrum from 20 percent to 100 percent and power factor greater than 0.9 at 20 percent load with 265 VAC input for designs over 200W.

Including line-connected sense elements, the new device contributes just 60mW to a typical high-power adapter’s 300mW no-load budget. Conducted and radiated EMI are minimized due to the integrated soft-recovery diode and short parasitic inductance loop which results from the highly integrated, compact design.