The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 1983
Filed:
Jan. 22, 1981
David E Sanders, St. Petersburg, FL (US);
E-Systems, Inc., Dallas, TX (US);
Abstract
A peak detector circuit (10) is disclosed wherein an input signal is full-wave rectified by a circuit (14) and the rectified signal is provided simultaneously to peak detect, hold and dump circuits (18), (20). Each of the peak detect, hold and dump circuits is discharged at the start of periodic intervals with a phase offset between the intervals for the two circuits. The peak signals are discharged at essentially the start of the interval followed by rapid charging of the peak signal to the peak amplitude of the rectified input signal. The later portions of each of the intervals of the peak signals produced by the peak detect, hold and dump circuits (18) and (20) are transmitted alternately through a multiplexer circuit (24). The resulting output signal is transmitted through a high impedance buffer amplifier (30) to an output terminal (32) of peak detector circuit (10). The timing of the operation of multiplexer (24) serves to remove the discharge and charge transitions of the peak signals from the peak detected output signal.