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:
May. 07, 2024

Filed:

Jun. 03, 2021
Applicant:

Capstan Ag Systems, Inc., Topeka, KS (US);

Inventor:

Kale Schrader, Hiawatha, KS (US);

Assignee:

Capstan Ag Systems, Inc., Topeka, KS (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); H01F 7/18 (2006.01); A01C 23/00 (2006.01);
U.S. Cl.
CPC ...
F16K 31/0679 (2013.01); H01F 7/1816 (2013.01); A01C 23/007 (2013.01); H01F 2007/1822 (2013.01); H01F 2007/1888 (2013.01);
Abstract

A drive circuit for controlling a solenoid valve having a solenoid coil and a poppet that translates therein is provided. The drive circuit includes a supply bus, a return bus, a flyback circuit, and a switch. The supply bus is configured to couple the solenoid coil to a power supply and supply a coil current. The return bus is configured to provide a ground path for the coil current. The flyback circuit is coupled in parallel to only the solenoid coil. The flyback circuit includes only a bipolar diode. The switch is coupled in series with the solenoid coil and configured to couple and decouple the solenoid coil to the return bus.


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