Power-Factor Controller (PFC) IC For High Power Factor And Active Harmonic Filter

The TDA4862 is excellent convenient for designing a preconverter in ballasts and switched mode power supplies with sinusoidal line current consumption and a power factor approaching unity. The TDA4862 controls a boost converter as an active harmonics Filter in a discontinuous mode (free oscillating triangular shaped current mode). The TDA4862 comprises an internal start-up Timer a high gain voltage Amplifier an one quadrant multiplier for approaching unity power factor, a zero current detector, PWM and Logic circuitry, and totem pole MOSFET Gate driver. By Infineon Technologies Corporation