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US 4,362,996 AGranted
Method and means for an accurate wideband peak detector
AssigneeHewlett-Packard Company
InventorDurward H. Priebe
Life of this patent
Estimating the term…
Abstract
A peak detector is comprised of two related circuits having similar circuit parameters, each providing an output in response to a repetitive waveform applied to the detector. The two outputs are combined to eliminate the dependence on the circuit parameters to provide as an output of the detector an accurate, wideband peak voltage of the applied waveform.
Claims5
An apparatus for providing the peak amplitude of a waveform applied thereto comprising:
- (a) first detector means having an input port for receiving said waveform coupled thereto for detecting the peak amplitude of said waveform and for providing a first amplitude signal representing a first amplitude of said waveform at an output port;
- (b) second detector means having an input port for receiving said waveform coupled thereto for detecting the peak amplitude of said waveform and for providing a second amplitude signal representing a second amplitude of said waveform at an output port;
- and
- (c) differential amplifier having first and second input ports coupled to the output port of said first and second detector means, respectively, to provide an output signal at an output port representative of the difference between said first amplitude signal and a multiple of said second amplitude signal to indicate a substantially peak amplitude of said waveform.
1 more element
A means for providing the peak amplitude of a waveform comprising the steps of:
- detecting the amplitude of the waveform with a first detector;
- detecting the amplitude of the waveform with a second detector;
- and
- subtracting the detected amplitude from said first detector from a multiple of the detected amplitude from said second detector to provide the peak amplitude of said waveform.
1 more element
Dependencies are inferred from the claim text.