Pulse-width modulation multiplier Patent

Pulse duration modulation multiplier syste

Transistor servo system including a unique differential amplifier circuit Patent

Electric motor control system with pulse width modulation for providing automatic null seeking serv

Power supply circuit for an ion engine sequentially operated power inverters

A power supply circuit for an ion engine suitable for a spacecraft has a voltage bus having input line and a return line. The power supply circuit includes a pulse width modulation circuit. A plurality of bridge inverter circuits is coupled to the bus and the pulse width modulation circuit. The pulse width modulation circuit generates operating signals having a variable duty cycle. Each bridge inverter has a primary winding and a secondary winding. Each secondary winding is coupled to a rectifier bridge. Each secondary winding is coupled in series with another of the plurality of rectifier bridges

Modeling and simulation of PMSM control system based on SVPWM

The paper introduces the basic principle of space vector pulse width modulation simply and expatiates a method for implementing space vector pulse width modulation in detail based on MATLAB/SIMULINK, designs modeling and simulation of AC servo system with PMSM (Permanent Magnet Synchronous Motor), the simulation results show that the model is effective, and the method provides a base for both software and hardware design of an actual PMSM

Design and manufacture of direct current torquer amplifiers Final summary report

Design and manufacture of direct current torquer amplifier with pulse width modulation circui