News Article
Two-Switch-Forward IC Bring s Component Count Down
Power Integrations, a supplier of high-voltage integrated circuits has announced the HiperTFS-2 family of ICs, combining two-switch-forward and flyback power-supply controller ICs with integrated high-voltage MOSFETs.
The company maintains this high level of integration saves more than 20 components, resulting in a smaller form factor and higher power density. The main converter provides a selectable switching frequency between 66 kHz and 132 kHz, which reduces system cost by enabling the use of very small magnetics.
HiperTFS-2 ICs enable efficiencies of more than 90% at full load. They also provide 175% peak power, a requirement of next-gen Intel CPUs. This single-chip implementation of a two-switch-forward main (66/132 kHz) and flyback (132 kHz) standby power supply delivers up to 364 W total output power (586 W peak) in a compact, two-row eSIP power package. Safety features include under voltage, overvoltage, over-temperature, over current and short-circuit protection. A transformer-reset control function prevents saturation under all conditions.
Comments Chris Lee, product marketing manager at Power Integrations: "HiperTFS-2 ICs enable power supply miniaturization in applications including 80 PLUS Bronze and 80 PLUS Silver PCs, gaming-console adapters and industrial products. The inclusion of the high-side MOSFET driver allows designers to eliminate the pulse transformer and many other supporting components, simplifying design and reducing the size (and cost) of the magnetics."
