AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

Study and Analysis of the Carrier Distortion Sources in PWM Analog DCI-NPC Modulator

In this work, it is studied and analyzed an Analog PWM Modulator for a Half-Bridge DCI-NPC Amplifier (Diode Clamped Inverter - Neutral Point Clamped) as one of the sources of distortion in the switching amplification chain. The four types of error or distortion sources are studied and analyzed: Carriers Offset Error (COE), Carriers Phase Error (CPE), Carriers Symmetry Error (CSE) and Carriers Amplitude Error (CAE). This paper concludes that the two major sources of error or distortion in PWM modulation process for DCI-NPC topology are the Amplitude (CAE) and Offset (COE) Errors, the latter being largest contributor to the total distortion.

Authors:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society