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.

Date of Patent:
Mar. 29, 2022

Filed:

Aug. 30, 2021
Applicant:

Crane Electronics, Inc., Lynnwood, WA (US);

Inventors:

Cuon Lam, Renton, WA (US);

Ryan Ricchiuti, Edmonds, WA (US);

Reza Ahmadi, Kirkland, WA (US);

Sovann Song, Kent, WA (US);

Assignee:

Crane Electronics, Inc., Lynnwood, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/569 (2006.01); G05F 1/575 (2006.01); G05F 1/567 (2006.01); G05F 1/571 (2006.01); H02H 7/12 (2006.01); G05F 1/56 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 7/1213 (2013.01); G05F 1/56 (2013.01); H02H 1/0007 (2013.01); G05F 1/567 (2013.01); G05F 1/569 (2013.01); G05F 1/571 (2013.01); G05F 1/575 (2013.01);
Abstract

A circuit includes a voltage detection path having a first transistor and a second transistor coupled to the first voltage detection path by a first terminal of the second transistor. The first voltage detection path includes: a first current source and a first voltage divider unit coupled to the first current source. The first transistor is coupled to the first voltage divider unit by a first terminal of the first transistor. A first voltage value at a second terminal of the first transistor is configured to switch between a first high voltage value and a first low voltage value at least partially based on a first detection voltage value provided at the first terminal of the first transistor by the first voltage divider unit. A second voltage at a second terminal of the second transistor is configured to switch between a second high voltage value and a second low voltage value at least partially based on the first voltage value at the second terminal of the first transistor.


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