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:
Apr. 19, 2022
Filed:
Feb. 23, 2020
Applicant:
Meggitt (Orange County), Inc., Irvine, CA (US);
Inventors:
Felix A. Levinzon, Mission Viejo, CA (US);
Margie Mattingly, San Clemente, CA (US);
Assignee:
Meggitt (Orange County), Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/70 (2006.01); H03F 3/185 (2006.01); H03F 3/45 (2006.01); B06B 1/06 (2006.01); G01P 15/09 (2006.01); G01H 11/08 (2006.01);
U.S. Cl.
CPC ...
H03F 3/70 (2013.01); B06B 1/06 (2013.01); G01H 11/08 (2013.01); G01P 15/09 (2013.01); H03F 3/1855 (2013.01); H03F 3/45071 (2013.01);
Abstract
A circuit has an input and a two-wire output. The circuit is designed for use with HTPE transducers and comprised of four stages. The first stage is a charge amplifier based on operational amplifier, the second stage is a 1-pole passive low-pass filter, the third stage is an active 2-pole low-pass filter based on two JFETs, and the fourth stage is an emitter follower comprising two bipolar junction transistors connected to each other in Darlington configuration.