Researchers from India’s Vellore Institute of Technology have tested a seven-level inverter with five power semiconductor switches for use with solar-powered, off-grid water pumping systems. The ...

Multiple factors affect the productive lifespan of a residential solar system. In Part 2 of our series, we look at solar ...

These modulation frequencies are used so that the inverters have approximately the same output waveform quality. For 250HP, the drive will have a nominal output current rating of 300Arms at a ...

Standard unipolar PWM voltage modulation is used because it offers the advantage of effectively doubling the switching frequency of the inverter voltage. Fig. 2, on page 47, depicts the inverter ...

It features adjustable maximum speed, minimum speed, current limit, I.R. compensation and acceleration, plus a quiet ...

Keeping op-amp outputs “live” at and below zero volts, generating symmetrical output signals, and processing bipolar analog inputs, are all examples of design situations where a few milliamps of ...