Transactions of the Society of Instrument and Control Engineers
Online ISSN : 1883-8189
Print ISSN : 0453-4654
ISSN-L : 0453-4654
Current-Pulse Width Converter Using Storage Time of Diode
Masahiro OKUDAKoji YOSHIDA
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1968 Volume 4 Issue 3 Pages 213-218

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Abstract

About the circuit using the storage time of junction diode, many reports are published. However, the pulse width converter and diode amplifier with high accuracy are difficult to be performed, using the storage, effect of diode itself.
Therefore, we used a simple circuit construction, where the series inductance is connected with the storage effect diode, and then improved the linear characteristics between the forward current and total delay time, by limiting the low speed circuit (the pulse width is about 0∼0.25μs, 0∼0.1μs).
In this circuit, Q of junction capacity increases rapidly after the recovery time of diode, then the resonance circuit is constructed with the junction capacity and series inductance. Therefore, the sharp pulse as the end pulse is obtained.
In this paper, the storage time equation in the circuit is calculated, and it is proved that the series inductance improved the linear characteristics between the forward current and total delay time from calculated results.
Also, the dependence of delay time on series inductance and dependence of delay time on drive voltage are explained by our experiments for the storage time of diode.
The above experimental data show that the calculated result and experimental one are coincident succesfully.

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