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. 23, 1996
Filed:
Feb. 22, 1994
Brian K Good, Greentown, IN (US);
Delco Electronics Corporation, Kokomo, IN (US);
Abstract
A conversion circuit is provided for converting a differential voltage to a single-ended voltage. The conversion circuit has an input circuit including first and second input lines for receiving a differential voltage that is produced by a magnetic sensor in response to rotation of a wheel. First and second buffers are coupled to the first and second input lines, respectively, of the input circuit and each provide a buffered output. The conversion circuit further includes a difference amplifier having a positive input coupled to the output of the first buffer and a negative input coupled to the output of the second buffer. The amplifier provides as an output the voltage difference between the first and second inputs as a single-ended voltage output. The output circuit further converts the single-ended voltage output into a series of voltage pulses which provide rotational speed information about the wheel.