Patent ID: 11913980
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 16:
17. A method of detecting power in a circuit, the method comprising:
receiving an input signal at a comparator circuit;
generating, by the comparator circuit, an output signal in response to the input signal, wherein generating the output signal comprises:
generating the output signal comprising a first logic value in response to the input signal attaining a first threshold value, and
generating the output signal comprising a second logic value when the input signal subsequently attains a second threshold value;

controlling the first threshold value and the second threshold value through a feedback circuit connected to the comparator circuit; and
limiting a leakage current of the comparator circuit through a current limiting circuit connected in parallel to the feedback circuit.