Time-Domain Analysis of Intermodulation Distortion of Closed-Loop Class-D Amplifiers

THD Analysis in Closed-Loop Analog PWM Class-D Amplifiers

In this paper, we investigate the parameters affecting Total Harmonic Distortion (THD) and Power Supply Rejection Ratio (PSRR) in PWM Class D Amplifiers (CDAs) on the basis of linear models with feedback. From our mathematical analysis, we show that the THD of a PWM Class D amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...

thd analysis in closed-loop analog pwm class-d amplifiers

in this paper, we investigate the parameters affecting total harmonic distortion (thd) and power supply rejection ratio (psrr) in pwm class d amplifiers (cdas) on the basis of linear models with feedback. from our mathematical analysis, we show that the thd of a pwm class d amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...

Bandwidth-Dependent Intermodulation Distortion in FET Amplifiers

Modern communication systems present significant challenges to circuit designers, including a demand for low intermodulation distortion amplifiers. A major obstacle to achieving this is bandwidth-dependent distortion effects, otherwise called memory effects. This thesis investigates the causes of bandwidth-dependent distortion in FET (Field-Effect Transistor) circuits, including consideration o...

Computer Simulation of Intermodulation Distortion in Traveling Wave Tube Amplifiers

The intermodulation performance of a helix TWT was computed using a large-signal disc model with two, three and eight correlated carriers and also using the program IMAL which models a generalized nonlinearity described by its single carrier transfer characteristics. The results obtained by both methods showed good agreement. The inter-modulation performance of a TWT for both correlated and unc...

Intermodulation Distortion