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:
Sep. 11, 2018
Filed:
Sep. 07, 2017
Renesas Electronics Corporation, Tokyo, JP;
Kosuke Fuwa, Tokyo, JP;
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Abstract
A current output circuit includes a separation circuit that separates a digital pseudo sine wave into first and second digital pseudo half-waves; a first digital-to-analog (DA) converter that converts the first digital pseudo half-wave into a first analog half-wave signal; a second DA converter that converts the second digital pseudo half-wave into a second analog half-wave signal; and a voltage-current conversion circuit that converts voltages of the first and second half-wave signals into currents and outputs a current obtained by combining the currents, wherein the pseudo sine wave is represented by a digital code having an n (n is a natural number) bit width, and the separation circuit includes: a plurality of OR circuits that output a logical OR between a value of a most significant bit representing a code in the digital code and values of bits other than the most significant bit as the first pseudo half-wave.