AES Store

Journal Forum

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

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

Access Journal Forum

AES E-Library

High-Power Amplifier With Direct Three-Phase 400 V Power Supply

Proposed amplifier has direct three-phase 400V power supply which consists only of diodes and uses neither filtering capacitors nor transformer. Proposed amplifier consists of 3 modules. The first module is a conventional Class-D digital audio amplifier, which can work on high voltage supply. The second module is a simple 3-phase diode rectifier which rectifies alternating voltage of a 400 V three-phase system. The third module is a negative feedback system that nearly eliminates the ripple voltage in the output signal. With the help of the third module (negative feedback for the power supply ripple) the first module (conventional class-D amplifier) actually behaves as it has power supply with the voltage equal to DC component Vdc of the rectified three-phase voltage.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Session 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