The rapid expansion of high voltage direct current (HVDC) grids, driven by the massive integration of renewable energy sources, has underscored the critical role of DC circuit breakers (DCCBs) and ...

This file type includes high resolution graphics and schematics when applicable. This 8051 microcontroller-based control circuit adjusts the speed of a small permanent-magnet dc motor via photosensors ...

Many applications using miniature brushed DC motors require motors to operate at more than one load point or through specific load cycles. Running a motor at usable load points requires a variable, ...

LED-driver circuits can be dimmed by applying a variable duty cycle (pulse-width modulation, or PWM) to the LED. PWM exploits LED behavior: At higher current levels, the LED’s light output is higher ...

The GSD1 series drives are pulse-width-modulated (PWM) controllers for 12-36 V battery/solar-powered equipment and feature adjustable maximum/minimum speed, current limit, IR compensation and ...

Variable frequency drives (or VFDs) are widely used throughout industry to provide adjustable speed control of ac motors. Although modern versions are relatively simple to install and operate, VFDs ...