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KUBÁNEK, D. VRBA, K. KOTON, J.
Original Title
Current-Mode Rectifiers and Analysis of Diode Reverse Recovery Time Influence
Type
conference paper
Language
English
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.
Keywords
Precision Rectifier, Current Follower, Diode Reverse Recovery Time
Authors
KUBÁNEK, D.; VRBA, K.; KOTON, J.
RIV year
2009
Released
1. 9. 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
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" }