Transient behavior of a transistor-tunnel diode circuit

The transient behavior of a transistor with tunnel diode feedback has been studied using the charge-control model for the transistor and empirical power functions for the tunnel diode. Though an accurate nonlinear power function is used for the tunnel diode, the final expressions are obtained in terms of some average time constants associated with the various segments of the tunnel diode characteristic. The theoretical results are found to be in good agreement with experimental observations.