logo

For the Inventor, By the Inventor

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 10437317 B1

PDFFull Text
Date of Patent:
Oct. 08, 2019

Filed:

Apr. 02, 2018

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 8/61 (2018.01); G06F 9/22 (2006.01); H02M 1/00 (2006.01); H02M 1/32 (2007.01); H02M 1/36 (2007.01); H02M 1/42 (2007.01); G06F 12/02 (2006.01); G06F 13/40 (2006.01); G06F 13/42 (2006.01); G06F 8/654 (2018.01); H02P 23/26 (2016.01); H02P 29/02 (2016.01); G06F 1/3287 (2019.01); G05B 19/042 (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 70/126 (2013.01); Y02D 10/42 (2018.01);
Abstract

A circuit for driving a motor of a compressor includes a microcontroller that generates a reference current value for a power factor correction (PFC) converter. A programmable logic device (PLD) receives control messages from the microcontroller. The PLD sets a value in an off-time register based on a control message from the microcontroller. The PLD controls a power switch of the PFC converter to turn off in response to receiving a comparison signal indicating that a measured current in the PFC converter exceeds the reference current value. Subsequent to controlling the power switch to turn off, the PLD waits for a period of time determined by the off-time register before controlling the power switch to turn on.

Find Patent Forward Citations

Loading…