A Study and Simulation of a Single-Phase Inverter Using Cd4047 Timing IC and IR2112 High–Low Side MOSFET Driver
Keywords:
Single-phase inverter, MOSFET driver, IR2112, CD4047, gate driving, PWM signals, H-bridge, Proteus simulation.Abstract
This paper presents the design, development, and simulation analysis of a single-phase inverter using the CD4047 astable multivibrator as a pulse-generation stage and the IR2112 high–low side MOSFET gate driver for effective switching of an H-bridge MOSFET structure. The work focuses on achieving stable gate-drive pulses, proper dead-time insertion, and reliable switching transitions to minimize power losses. Detailed simulation experiments are carried out using Proteus Design Suite, where the inverter operation, gate signals, and output load waveform are observed. Results show that the combination of CD4047 and IR2112 provides excellent timing accuracy, high noise immunity, and reliable floating high-side operation, ensuring distortion-free output voltage suitable for low- to medium-power applications. The inverter’s performance demonstrates smooth switching, minimal ripple, improved device protection, and an efficient overall operation. The presented design is appropriate for low-cost power backup units, domestic loads, and renewable-energy conversion systems.
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