Publication result detail

Current-Mode Rectifiers and Analysis of Diode Reverse Recovery Time Influence

KUBÁNEK, D.; VRBA, K.; KOTON, J.

Original Title

Current-Mode Rectifiers and Analysis of Diode Reverse Recovery Time Influence

English Title

Current-Mode Rectifiers and Analysis of Diode Reverse Recovery Time Influence

Type

Paper in proceedings (conference paper)

Original Abstract

An explanation of the diode reverse recovery mechanism is provided in a simple circuit. Then a two-diode circuit fed by current is analyzed from the reverse recovery point of view. This simple circuit is often a part of rectifiers with current-mode active elements that are suitable for high-frequency signal processing. Feeding the rectifying diodes by current is advantageous because a diode fed by current can be usually considered as an ideal switch and its forward voltage drop can be neglected. A voltage bias is applied in the two-diode circuit mentioned to keep the diodes close to their conducting state and to reduce their voltage swing, which also reduces the diode capacity discharge time significantly. A symbolic formula for the time response of the two-diode circuit is computed using a differential equation describing the circuit. Graphical waveforms of the currents and voltages are computed and the influence of the bias voltage on the switching time is observed. A versatile rectifier with current follower is presented. It can operate in current, voltage and mixed mode and its high-frequency performance can be also improved by a bias voltage, which is verified by PSpice simulation.

English abstract

An explanation of the diode reverse recovery mechanism is provided in a simple circuit. Then a two-diode circuit fed by current is analyzed from the reverse recovery point of view. This simple circuit is often a part of rectifiers with current-mode active elements that are suitable for high-frequency signal processing. Feeding the rectifying diodes by current is advantageous because a diode fed by current can be usually considered as an ideal switch and its forward voltage drop can be neglected. A voltage bias is applied in the two-diode circuit mentioned to keep the diodes close to their conducting state and to reduce their voltage swing, which also reduces the diode capacity discharge time significantly. A symbolic formula for the time response of the two-diode circuit is computed using a differential equation describing the circuit. Graphical waveforms of the currents and voltages are computed and the influence of the bias voltage on the switching time is observed. A versatile rectifier with current follower is presented. It can operate in current, voltage and mixed mode and its high-frequency performance can be also improved by a bias voltage, which is verified by PSpice simulation.

Keywords

Precision Rectifier, Current Follower, Diode Reverse Recovery Time

Key words in English

Precision Rectifier, Current Follower, Diode Reverse Recovery Time

Authors

KUBÁNEK, D.; VRBA, K.; KOTON, J.

RIV year

2010

Released

01.09.2009

Publisher

Asszisztencia Szervezo Kft.

Location

Budapest

ISBN

978-963-06-7716-5

Book

Proceedings of the 32th International Conference Telecommunications and Signal Processing, TSP 2009

Pages from

1

Pages to

5

Pages count

5

BibTex

@inproceedings{BUT33933,
  author="David {Kubánek} and Kamil {Vrba} and Jaroslav {Koton}",
  title="Current-Mode Rectifiers and Analysis of Diode Reverse Recovery Time Influence",
  booktitle="Proceedings of the 32th International Conference Telecommunications and Signal Processing, TSP 2009",
  year="2009",
  pages="1--5",
  publisher="Asszisztencia Szervezo Kft.",
  address="Budapest",
  isbn="978-963-06-7716-5"
}