Distortion minimisation in pulse width modulated systems using a digital sampling process

1990 ◽  
Vol 26 (16) ◽  
pp. 1310
Author(s):  
S.P. Leigh ◽  
P.H. Mellor ◽  
B.G.M. Cheetham
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulated ◽  
Digital Sampling ◽  
Sampling Process

Digital sampling process for audio class D, pulse width modulated, power amplifiers

1992 ◽  
Vol 28 (1) ◽  
pp. 56-58 ◽  
Author(s):  
P.H. Mellor ◽  
S.P. Leigh ◽  
B.M.G. Cheetham
Keyword(s):  
Power Amplifiers ◽  
Pulse Width ◽  
Pulse Width Modulated ◽  
Digital Sampling ◽  
Sampling Process ◽  
Class D

Pulse-Width Modulated Amplifier for DC Servo System and Its Matlab Simulation

2015 ◽  
Vol 9 (1) ◽  
pp. 625-631
Author(s):  
Ma Xiaocheng ◽  
Zhang Haotian ◽  
Cheng Yiqing ◽  
Zhu Lina ◽  
Wu Dan
Keyword(s):  
Mathematical Model ◽  
Transfer Function ◽  
Input Signal ◽  
Pulse Width ◽  
Rotation Speed ◽  
Servo Motor ◽  
Matlab Simulation ◽  
Pulse Width Modulated ◽  
Signal Changes ◽  
The Relationship

This paper introduces a mathematical model for Pulse-Width Modulated Amplifier for DC Servo Motor. The relationship between pulse-width modulated (PWM) signal and reference rotation speed is specified, and a general model of motor represented by transfer function is also put forward. When the input signal changes, the rotation speed of the servo motor will change accordingly. By changing zeros and poles, transient performance of this system is discussed in detail, and optimal ranges of the parameters is recommended at the end of discussion.

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