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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.:

US 10928884 B1

PDFFull Text
Date of Patent:
Feb. 23, 2021

Filed:

Oct. 07, 2019

Microcontroller architecture for power factor correction converter

Applicant:

Emerson Climate Technologies, Inc., Sidney, OH (US);

Inventors:

Charles E. Green, Fenton, MO (US);

Joseph G. Marcinkiewicz, St. Peters, MO (US);

Assignee:

Emerson Climate Technologies, Inc., Sidney, OH (US);

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

David Luo

Int. Cl.
CPC ...
G06F 1/3287 (2019.01); H02M 1/42 (2007.01); H02P 29/02 (2016.01); G06F 8/61 (2018.01); G06F 13/42 (2006.01); G06F 13/40 (2006.01); H02P 23/26 (2016.01); G06F 8/654 (2018.01); H02M 1/32 (2007.01); G06F 9/22 (2006.01); G06F 12/02 (2006.01); G05B 19/042 (2006.01); H02M 1/36 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
G06F 1/3287 (2013.01); G06F 8/61 (2013.01); G06F 8/654 (2018.02); G06F 13/4022 (2013.01); G06F 13/4282 (2013.01); H02M 1/32 (2013.01); H02M 1/42 (2013.01); H02M 1/4225 (2013.01); H02P 23/26 (2016.02); H02P 29/02 (2013.01); G05B 19/042 (2013.01); G05B 2219/2614 (2013.01); G06F 9/223 (2013.01); G06F 12/0246 (2013.01); G06F 2212/7201 (2013.01); H02M 1/36 (2013.01); H02M 2001/0012 (2013.01); H02M 2001/327 (2013.01); H02M 2001/4291 (2013.01); Y02B 70/10 (2013.01); Y02D 10/00 (2018.01);
Abstract

A control system for driving a motor of a compressor includes a microcontroller and a programmable logic device. The microcontroller is configured to generate a reference current value for a power factor correction (PFC) converter. The programmable logic device is configured to receive control messages from the microcontroller and, in response to data in a first control message, set a value into a timing register. The programmable logic device is configured to reverse a state of a power switch of the PFC converter between an on state and an off state in response to receiving a comparison signal indicating that a measured current in the PFC converter crossed the reference current value. The programmable logic device is configured to, subsequent to reversing the state of the power switch, wait for a period of time determined by the timing register and reverse the state of the power switch.

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