PWM ASIC design for the three-phase bi-directional buck converter

N. A. Rahim, T. C. Green, B. W. Williams

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


The design of hardware and software generation of the synchronous pulse-width modulation (PWM) suitable for the three-phase bi-directional AC-DC power converter is presented. The switching of the power devices is modulated by synchronous PWM implemented in an XC-3042 field programmable gate array (FPGA). There are no mains capture and synchronization problems. The utilization of the switches is based on the voltage-space vector control of an inverter. Displacement factor control is achieved in the design by decrement and increment of the phase-shift counter to give leading or lagging phase angle respectively. Results are provided to demonstrate the effectiveness of the design.

Original languageEnglish
Pages (from-to)603-615
Number of pages13
JournalInternational Journal of Electronics
Issue number5
Publication statusPublished - Nov 1996


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