Browse Prior Art Database

Diode Amplifier

IP.com Disclosure Number: IPCOM000097629D
Original Publication Date: 1961-Mar-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 22K

Publishing Venue

IBM

Related People

Kwei, TCL: AUTHOR

Abstract

A diode exhibits a large transient forward resistance when a pulse is applied to it in the forward direction. This transient resistivity can be controlled by introducing a small forward bias to the diode. The circuit shown makes use of these properties to provide a diode amplifier.

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Diode Amplifier

A diode exhibits a large transient forward resistance when a pulse is applied to it in the forward direction. This transient resistivity can be controlled by introducing a small forward bias to the diode. The circuit shown makes use of these properties to provide a diode amplifier.

In the circuit, the pulse generator G supplies pulses the duration of which is short compared to the transient forward resistance of the amplifying diode D1. These pulses pass through the series combination of the load RL and diode D1. Forward biasing current, controlled by the bias generator Gb and resistor Rb is also passed through D1 to control the magnitude of the transient resistivity. High conductance diode D2 blocks passage of bias current to the load.

By controlling the bias, the resistance of D1 to pulses from generator G may be accurately controlled to vary the current through the load RL.

The graph of load current versus bias current illustrates the amplification attained.

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