Patent ID: 8884654
Filing Date: 2014-11-11
Classification: G01R,H03K

Abstract:
1. An integrated detector, comprising: a rectifying circuit, having an input and an output, configured to generate an rectified voltage at the output corresponding to an oscillating voltage at the input; an integrated capacitor configured to store an envelope voltage representing a last detected peak value of the oscillating voltage; a first switch configured to electrically couple said integrated capacitor to the output of the rectifying circuit when the first switch is closed, and to isolate the integrated capacitor from the rectifying circuit when the first switch is open; and a comparator configured to compare the envelope voltage with the oscillating voltage, generate a command signal that closes said first switch in response to determining that a difference between the envelope voltage and the oscillating voltage is smaller than a first offset voltage, and keep the first switch open in response to determining that the difference is greater than the first offset voltage, wherein said first switch comprises: