Author : Priya S.Devkar

In order to improve the performance of conventional AC/DC converter the proposed system presents a microcontroller based triggering circuitry for converter with power factor correction. Microcontroller with Zero crossing detectors and ADC are used to generate triggering pulses for semi converter to obtain controlled DC output. Special IC La6561 is used for power factor correction. The main aim is to achieve controlled dc drive output with variable voltage range and power factor correction. Proposed system is specially used for Domestic applications and small scale industries.

Keywords: Firing angle control; Optoisolator; Semi converter; ZCD; ICL6561; PFC

Article published in International Journal of Current Engineering and Technology, Vol.6, No.1 (Feb-2016)