Power Integrations recently launched its HiperPLC power supply controller IC.
HiperPLC is the first member of the Hiper family of highly integrated, high efficiency, high power products. It combines a continuous conduction mode (CCM) PFC controller, an LLC resonant converter and 800 V half-bridge drivers in a single IC package.
HiperPLC is the company’s first product targeted at applications for high efficiency offline power converters in the power range of 200 to 600 W, such as flat-panel TVs, PC main power and workstation power supplies, and the latest generations of high-brightness LED streetlights. The combined PFC and LLC control ensures a single switching frequency for the entire power supply, reducing differential mode noise and EMI harmonic spectrum components to reduce input filter cost.
The device provides the necessary protection features for both power stages, increasing reliability and cutting parts count. Continuous-mode PFC minimises the cost of PFC magnetics by limiting AC flux, obviating the need for expensive Litz wire in the input choke and reducing ripple current delivered to the PFC bulk capacitor.
Other features include comprehensive PFC and LLC fault handling and current limiting as well as short-circuit protection designed to protect power components; high-efficiency zero voltage switching (ZVS) LLC; off-time PFC control to eliminate AC input sensing components; configurable, precise dead-time control and frequency limits that prevent hard MOSFET switching; tight LLC duty cycle symmetry for balanced output diode currents; and an internal PFC current-sense low-pass filter.
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