The circuit in the figure provides three levels of speed control for a dc motor, using a PC’s parallel port (LPT1). A C++ program performs the control functions by allowing the signals from the ...

EW Technology 25/02/2004 – Embedded exhibition sets out to simplify DC motor control circuits Embedded exhibition sets out to simplify DC motor control circuits Richard Wilson Simplifying the design ...

Guest columnist Alfred Hesener, European marketing director at Fairchild Semiconductor, describes how good design of power switches can help reduce losses in motor control circuits. Energy-saving ...