Patent ID: 6807111
Filing Date: 2004-10-19
Classification: G11C,H03K

Abstract:
A pulse generator having a comparator whose output is generated in response to a difference between a potential level of a ramp signal from a ramp signal generator and a potential level of a threshold signal from a threshold signal generator, wherein the threshold signal generator comprises:an upper resistive component coupled between a first potential node and an output node of the threshold signal generator; a bipolar junction transistor having a base coupled to the output node of the threshold signal generator, a collector coupled to the output node of the threshold signal generator, and an emitter coupled to a second potential node through at least one resistive element; and at least one resistive element coupled in parallel with the bipolar junction transistor, each having an input coupled to the collector of the bipolar junction transistor and an output coupled to the emitter of the bipolar junction transistor.