負性抵抗素子を用いたA-D変換器の新しい回路

抄録

Self-oscillation is observed in a transmission line with a current-controlled negative resistance element on one end. Generally, the current wave form through the element is in pulse form and its frequency changes discretely according to the bias current of the element. Based on these facts is the principle of new analog-digital converter described in this paper which is very simple in construction. This circuit can also be used as a pulse generator, pulse frequency modulator with discontinuous levels, etc.
In this paper, the circuit is theoretically analyzed by the Witt's method and the results of the fundamental experiment are shown using a PNPN diode and a Double Base diode as the negative-resistance element.