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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 10985670 B1

PDFFull Text
Date of Patent:
Apr. 20, 2021

Filed:

Jun. 28, 2018

Power supply device having charging current detection, inverter device and converter device using the power supply device, and refrigeration device and air cleaner using the inverter device or the convertor device

Applicant:

Daikin Industries, Ltd., Osaka, JP;

Inventors:

Yuuki Nakajima, Osaka, JP;

Junya Mitsui, Osaka, JP;

Toshiaki Satou, Osaka, JP;

Assignee:

Daikin Industries, Ltd., Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Yusef A Ahmed

Int. Cl.
CPC ...
H02M 7/48 (2007.01); F24F 1/20 (2011.01); H02M 3/28 (2006.01); H02M 7/04 (2006.01); H02M 1/08 (2006.01); H02J 3/12 (2006.01); F24F 11/30 (2018.01); H02M 7/12 (2006.01); H02P 6/08 (2016.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02M 7/48 (2013.01); F24F 1/20 (2013.01); F24F 11/30 (2018.01); H02J 3/12 (2013.01); H02M 1/081 (2013.01); H02M 3/28 (2013.01); H02M 7/04 (2013.01); H02M 7/12 (2013.01); H02P 6/08 (2013.01); H02P 27/06 (2013.01);
Abstract

A power supply device is provided with a diode rectifier circuit having an input connected to an AC power source, the output of the diode rectifier circuit producing a rectified voltage; a capacitor connected to the diode rectifier to be charged by the rectified voltage; and a controller configured to receive as input a detection signal representing a charging current flowing into the capacitor, the controller being further configured to calculate a voltage frequency, a cycle, or a power voltage phase of the AC power on the basis of the detection signal. At least one of the following is used to detect the charging current flowing into the capacitor and produce the detection signal: a photocoupler; an amplifier circuit including a shunt resistor and an operational amplifier; and a current transformer.

Find Patent Forward Citations

Nakajima, Yuuki. (2021). Power supply device having charging current detection, inverter device and converter device using the power supply device, and refrigeration device and air cleaner using the inverter device or the convertor device (U.S. Patent No. 10985670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10985670

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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