IGBT-Based PWM Buck-Boost Voltage Stabilizer for Tight Regulation & Rapid Correction

This is an SMPS type voltage stabilizer for mains voltage (AC input and AC output). This is a new switching topology where PWM is made directly in AC-to-AC switching, without any harmonic distortion. In this topology, there is no need to convert the AC input to DC and again convert it back to regulated AC output. This simplifies the design, reduces the component count, and improves the efficiency and reliability. The power stage is an IGBT chopper control. The chopping frequency is around 20KHz which ensures absolutely silent operation and pure sine wave output (no waveform distortion).

• Direct AC-AC conversion without rectifying to DC enhances efficiency, reliability, and reduces component usage.
• Rapid cycle-by-cycle correction for precise output stabilization.
• Output regulation accuracy of +/- 1%, unattainable in conventional stabilizers.
• Distortion-free output waveform ensures clean power delivery.
• Overload and short circuit cutoff for enhanced safety.
• Over voltage and under voltage protection to safeguard equipment.
• Automatic bypass function in case of system failure.
• LCD display for real-time monitoring of all parameters and company branding.