Blogs

India’s First Sine Wave Inverter, Solar Home Lighting, and the Birth of ‘Home UPS’ (Part 4)

Between 2002 and 2005, Su-Kam launched three innovations that rewrote India’s power backup industry: the first DSP sine wave inverter (with Jagdeep Chauhan), the Solar Home Lighting System, and the ‘Home UPS’ β€” a new product category that the entire industry adopted within a year. Also: the first BEE 4-star inverter and how an airplane overhead panel inspired our LED indication system.

Blogs

A New Beginning With Inverters β€” How a Rude Technician and Exploding MOSFETs Built Su-Kam (Part 2)

In 1998, a rude service technician told Kunwer Sachdev he wouldn’t understand inverter technology. That insult sparked two years of R&D, exploding MOSFETs, and the birth of India’s first MOSFET-based single-battery inverter. Featuring original photos of the first Su-Kam inverter, the Times of India ‘Digital Wonders’ article, and the R&D lab where it all happened.

Blogs

How We Built India’s First Solar Online UPS at Su-Kam β€” Making Double-Conversion Online UPS Energy Efficient

The untold story of how Su-Kam Power Systems solved the biggest problem with transformer-based Online UPS systems β€” their massive power consumption. In 2015, we integrated an MPPT solar charge controller that bypasses the main charger, making the double-conversion Online UPS energy efficient without sacrificing the galvanic isolation Indian power conditions demand. Includes real R&D thermal test data and 84.28% efficiency results.

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