Patent ID: 9281968
Filing Date: 2016-03-08
CPC Classification: H04L

Claim Text:
1. A differential circuit system in an integrated circuit, connected to an external power source for receiving an external voltage and a ground voltage, the differential circuit system comprising: a differential circuit set, comprising a plurality of differential circuits connected between a first node and a second node, wherein each of the plurality of the differential circuits generates a current flowing from the first node to the second node, wherein the first node supplies a high voltage and the second node supplies a low voltage and the first node receives the external voltage; a voltage regulator, for generating the low voltage according to a first voltage and supplying the low voltage to the second node; and a current drainage circuit set, connected between the second node and the ground voltage, for generating a drainage current, wherein a superposed current flowing to the voltage regulator is equivalent to summation of a plurality currents outputted by the plurality of differential circuits minuses the drainage current.