Patent ID: 6300815
Filing Date: 2001-10-09
Classification: H03K

Abstract:
A voltage reference overshoot dampening circuit comprising:a first transistor operational to receive a reference voltage signal and configured to receive an oscillating voltage signal such that the first transistor will pass a current proportional to the oscillating voltage signal there through when the oscillating voltage signal exceeds a level determined by the reference voltage signal and a turn-on voltage signal associated with the first transistor;an n-channel transistor having a source node configured to receive the oscillating voltage signal and a gate node configured to receive a current passed by the first transistor such that the n-channel transistor will reduce the oscillating voltage signal in proportion to a current received from the first transistor; anda second transistor configured as a switch to selectively stop the flow of current passed by the first transistor to the gate node of the n-channel transistor.