Auflistung Fakultät für Elektrotechnik und Informatik nach Autor/in "3f8b74ea-c420-4cc2-9d50-5b120996152e"

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Increasing the time resolution of a pulse width modulator in a class D power amplifier by using delay lines

Weber, M.; Vennemann, T.; Mathis, Wolfgang (Göttingen : Copernicus GmbH, 2014)

In this paper, we present a method to increase the time resolution of a pulse width modulator by using delay lines. The modulator is part of an open loop class D power amplifier, which uses the ZePoC algorithm to code the ...
A novel ZePoC encoder for sinusoidal signals with a predictable accuracy for an AC power standard

Vennemann, T.; Frye, T.; Liu, Z.; Kahmann, M.; Mathis, Wolfgang (Göttingen : Copernicus GmbH, 2015)

In this paper we present an analytical formulation of a Zero Position Coding (ZePoC) encoder for an AC power standard based on class-D topologies. For controlling a class-D power stage a binary signal with special spectral ...
Systematic design of output filters for audio class-D amplifiers via Simplified Real Frequency Technique

Hintzen, E.; Vennemann, T.; Mathis, Wolfgang (Göttingen : Copernicus GmbH, 2014)

In this paper a new filter design concept is proposed and implemented which takes into account the complex loudspeaker impedance. By means of techniques of broadband matching, that has been successfully applied in radio ...

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