Research of High Frequency Drive Circuit for Motor Drive System Based on GaN Power Device

2020 ◽  
Author(s):  
Yu Ma ◽  
Ming Yang ◽  
Zekai Lyu ◽  
Donglin Xu ◽  
Dianguo Xu
Keyword(s):  
High Frequency ◽  
Drive System ◽  
Power Device ◽  
Motor Drive ◽  
Drive Circuit ◽  
Motor Drive System

A Novel Ultrasonic Motor Driver Based on Two Phase PWM Signals

2011 ◽  
Vol 189-193 ◽  
pp. 1543-1546
Author(s):  
Tie Min Zhang ◽  
Zhi Yang Xie ◽  
Jian Tao Zhang
Keyword(s):  
Phase Difference ◽  
High Frequency ◽  
Ultrasonic Motor ◽  
Drive System ◽  
Motor Drive ◽  
Two Phase ◽  
Power Drive ◽  
Phase Signal ◽  
Drive Circuit ◽  
Motor Drive System

An ultrasonic motor (USM) has been widely used in many applications since it has several advantages over the conventional electromagnetic motor, such as high torque at low speeds, no electromagnetic interference, and high holding torque without power supply. However, in order to achieve high efficiency, its electrical drive system presents unique challenges, especially in producing two-phase signal (high frequency, high voltage, phase difference of two-phase signal) input to a low impedance capacitive motor. In this paper, a novel drive system based on microcontroller (ATmega16) has been proposed for ultrasonic motor. Drive system includes power drive circuit and control system. Power drive circuit is combined from Push-Pull Inverter to provide high-frequency two-phase voltages. A microcontroller was used to control ultrasonic motor drive system. PWM signals were generated and then directly applied to the MOSFET drivers for speed control of ultrasonic motor. The frequency and phase difference of two phase PWM signals can be directly changed by microcontroller. Detailed experimental results are provided to demonstrate the successful of the proposed drive system.

Modeling of Conducted EMI in Electric Vehicle Motor Drive System

2013 ◽  
Vol 325-326 ◽  
pp. 543-546
Author(s):  
Yong Ming Yang ◽  
He Meng Peng ◽  
Quan Di Wang
Keyword(s):  
Electric Vehicle ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
Drive System ◽  
Motor Drive ◽  
Frequency Range ◽  
Parasitic Parameters ◽  
Simulation Results ◽  
Motor Drive System ◽  
Conducted Emi

In this paper, a method for conducted electromagnetic interference (EMI) prediction in Electric Vehicle motor drive system based on components’ circuit models is presented. Firstly, the characteristics of the components are analyzed and the equivalent circuits are drew; then, the parasitic parameters of the electromagnetic device are extracted by the measurement, analytical solution and finite element method (FEM); and finally, the circuit model of the whole motor drive system in high frequency range is established. This model is verified by the measurement and simulation results in the frequency domain.

Sign in / Sign up

Export Citation Format

Share Document