using variable impedance

Industry

CPC
H02P7/288

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Parent Industries

HELECTRICITY H02Electric power H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors

Current Industry

H02P7/288using variable impedance

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Load driving circuit
- Patent number 10,992,244
- Issue date Apr 27, 2021
- Rohm Co., Ltd.
- Hiroki Sugamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic fitness device
- Patent number 9,190,950
- Issue date Nov 17, 2015
- John O. Chernega
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for quiet fan speed control
- Patent number 8,193,744
- Issue date Jun 5, 2012
- Lutron Electronics Co., Inc.
- James P. Steiner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power transistor with turn off control and method for operating
- Patent number 8,030,986
- Issue date Oct 4, 2011
- FREESCALE SEMICONDUCTOR, INC.
- Thierry Sicard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Series resistor assembly for an electric motor, circuit arrangement...
- Patent number 7,705,549
- Issue date Apr 27, 2010
- Behr GmbH & Co. KG
- Thomas Bielesch
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fan rotation speed control circuit of power supply system
- Patent number 7,683,566
- Issue date Mar 23, 2010
- Inventec Corporation
- Cheng-Shun Fan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Device for the incremental control of a direct-current motor for th...
- Patent number 7,683,561
- Issue date Mar 23, 2010
- Robert Bosch GmbH
- Richard Vogt
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for quiet fan speed control
- Patent number 7,671,549
- Issue date Mar 2, 2010
- Lutron Electronics Co., Inc.
- James P. Steiner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for detecting and controlling output characteristics of a DC...
- Patent number 7,652,446
- Issue date Jan 26, 2010
- Industrial Technology Research Institute
- Janq-Yann Lin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Start-up circuit for DC fan
- Patent number 7,598,690
- Issue date Oct 6, 2009
- Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.
- Xing-Jun Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for quiet fan speed control
- Patent number 7,489,094
- Issue date Feb 10, 2009
- Lutron Electronics Co., Inc.
- James P. Steiner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fan speed control device and method detailed description of the inv...
- Patent number 7,447,423
- Issue date Nov 4, 2008
- Delta Electronics, Inc.
- Chun-Lung Chiu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fan speed controlling circuit
- Patent number 7,443,151
- Issue date Oct 28, 2008
- Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.
- Xiang Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Self-startup circuit for DC fan
- Patent number 7,205,733
- Issue date Apr 17, 2007
- Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.
- Jin-Liang Xiong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuitry for controlling rotational speed of a DC motor
- Patent number 7,012,400
- Issue date Mar 14, 2006
- Delta Electronics, Inc.
- Shou-Te Yu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor driving system
- Patent number 6,946,809
- Issue date Sep 20, 2005
- Asia Vital Components Co., Ltd.
- Shou-Te Yu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Device for controlling a power output stage
- Patent number 6,873,141
- Issue date Mar 29, 2005
- Robert Bosch GmbH
- Bernd Seyfang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for regulating the rotational speed of a motor and a motor f...
- Patent number 6,831,431
- Issue date Dec 14, 2004
- Papst Motoren GmbH & Co. KG
- Roland Dieterle
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit for regulating a power supply voltage
- Patent number 6,700,339
- Issue date Mar 2, 2004
- Dell Products, L.P.
- Nikolai V. Vyssotski
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Air conditioner
- Patent number 6,657,408
- Issue date Dec 2, 2003
- Matsushita Electric Industrial Co., Ltd.
- Naomi Goto
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method and apparatus for controlling the speed of rotation of a dir...
- Patent number 6,654,548
- Issue date Nov 25, 2003
- Gebr. Maerklin & Cie. GmbH
- Rainer Schmitz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Fan speed controller with conditioned tachometer signal
- Patent number 6,650,074
- Issue date Nov 18, 2003
- Dell Products, L.P.
- Nikolai Vyssotski
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for measuring a frequency datum
- Patent number 6,496,786
- Issue date Dec 17, 2002
- Papst Motoren GmbH & Co. KG
- Roland Dieterle
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
AC/DC chopper for power tool
- Patent number 6,286,609
- Issue date Sep 11, 2001
- Black & Decker Inc.
- David A. Carrier
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Direct current motor safety circuits for fluid delivery systems
- Patent number 6,259,587
- Issue date Jul 10, 2001
- MiniMed Inc.
- Moberg Sheldon
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Electrical circuit to detect load current
- Patent number 6,242,938
- Issue date Jun 5, 2001
- Robert Bosch GmbH
- Martin Kessler
- G01 - MEASURING TESTING
Information Patent Grant
Terminal protection system for portable power tools
- Patent number 6,237,698
- Issue date May 29, 2001
- Black & Decker Inc.
- David Carrier
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Technique for controlling current limiter of motor
- Patent number 6,208,099
- Issue date Mar 27, 2001
- Samsung Electronics Co., Ltd.
- Young-Ki Kwon
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multistage rotating speed control circuit for DC motor
- Patent number 6,201,929
- Issue date Mar 13, 2001
- Delta Electronics, Inc.
- Shou-Te Yu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Drive system
- Patent number 6,081,089
- Issue date Jun 27, 2000
- AGFA-GEVAERT N.V.
- Fernand Godon
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
STEPLESS SPEED CONTROL CIRCUIT OF ELECTRIC SPRAYER
- Publication number 20200119671
- Publication date Apr 16, 2020
- SUZHOU CROSSTEC CO., LTD.
- Xiaobing ZHANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LOAD DRIVING CIRCUIT
- Publication number 20200021215
- Publication date Jan 16, 2020
- ROHM CO., LTD.
- Hiroki SUGAMOTO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MINIATURE STABILIZED UNMANNED AERIAL VEHICLE GIMBAL
- Publication number 20160291445
- Publication date Oct 6, 2016
- Vantage Robotics, LLC
- Tobin Fisher
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
VOICE COIL MOTOR DRIVING CIRCUIT
- Publication number 20160065111
- Publication date Mar 3, 2016
- Samsung Electro-Mechanics Co., Ltd.
- Shin-Jae KANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRONIC FITNESS DEVICE
- Publication number 20140062347
- Publication date Mar 6, 2014
- John O. CHERNEGA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ROTATION SPEED CONTROL DEVICE FOR A HEAT-DISSIPATING FAN
- Publication number 20120007534
- Publication date Jan 12, 2012
- NS MICRO MOTOR TECHNOLOGY CORP.
- Ta-Lun KO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POWER TRANSISTOR WITH TURN OFF CONTROL AND METHOD FOR OPERATING
- Publication number 20110050316
- Publication date Mar 3, 2011
- Thierry Sicard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
FAN DRIVING CIRCUIT
- Publication number 20100145548
- Publication date Jun 10, 2010
- HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
- Guang-Feng Ou
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD AND APPARATUS FOR QUIET FAN SPEED CONTROL
- Publication number 20100109597
- Publication date May 6, 2010
- Lutron Electronics Co., Inc.
- James P. Steiner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD AND APPARATUS FOR QUIET FAN SPEED CONTROL
- Publication number 20090072775
- Publication date Mar 19, 2009
- Lutron Electronics Co., Inc.
- James P. Steiner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD FOR DETECTING AND CONTROLLING OUTPUT CHARACTERISTICS OF A DC...
- Publication number 20080253752
- Publication date Oct 16, 2008
- Industrial Technology Research Institute
- Janq-Yann Lin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Fan rotation speed control circuit of power supply system
- Publication number 20080181586
- Publication date Jul 31, 2008
- Inventec Corporation
- Cheng-Shun Fan
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Device for the Incremental Control of a Direct-Current Motor for th...
- Publication number 20080002953
- Publication date Jan 3, 2008
- Richard Vogt
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Fan speed control device and method detailed description of the inv...
- Publication number 20070133956
- Publication date Jun 14, 2007
- DELTA ELECTRONICS, INC.
- Chun-Lung Chiu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD AND APPARATUS FOR QUIET FAN SPEED CONTROL
- Publication number 20070114963
- Publication date May 24, 2007
- James P. Steiner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FAN SPEED CONTROLLING CIRCUIT
- Publication number 20070057653
- Publication date Mar 15, 2007
- HON HAI PRECISION INDUSTRY CO., LTD.
- Xiang Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Series resistor assembly for an electric motor, circuit arrangement...
- Publication number 20060291821
- Publication date Dec 28, 2006
- Thomas Bielesch
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Self-startup circuit for DC fan
- Publication number 20060091837
- Publication date May 4, 2006
- HON HAI Precision Industry CO., LTD.
- Jin-Liang Xiong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Start-up circuit for DC fan
- Publication number 20060076912
- Publication date Apr 13, 2006
- Hon Hai Precision Industry CO., LTD.
- Xing-Jun Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Linear power module
- Publication number 20050264253
- Publication date Dec 1, 2005
- Mladen Ivankovic
- B60 - VEHICLES IN GENERAL
Information Patent Application
Motor driving system
- Publication number 20050067988
- Publication date Mar 31, 2005
- ASIA VITAL COMPONENTS CO., LTD.
- Shou-Te Yu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Control circuitry for controlling rotational speed of a DC motor
- Publication number 20040213558
- Publication date Oct 28, 2004
- DELTA ELECTRONICS, INC.
- Shou-Te Yu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Circuit for regulating a power supply voltage
- Publication number 20030222608
- Publication date Dec 4, 2003
- Nikolai V. Vyssotski
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Control circuitry for controlling rotational speed of a DC motor
- Publication number 20030219239
- Publication date Nov 27, 2003
- Shou-Te Yu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Method and apparatus for controlling the speed of rotation of a dir...
- Publication number 20030049023
- Publication date Mar 13, 2003
- Gebr. Maerklin & Cie. GmbH
- Rainer Schmitz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Air conditioner
- Publication number 20030006727
- Publication date Jan 9, 2003
- Naomi Goto
- B60 - VEHICLES IN GENERAL

using variable impedance

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Load driving circuit

Electronic fitness device

Method and apparatus for quiet fan speed control

Power transistor with turn off control and method for operating

Series resistor assembly for an electric motor, circuit arrangement...

Fan rotation speed control circuit of power supply system

Device for the incremental control of a direct-current motor for th...

Method and apparatus for quiet fan speed control

Method for detecting and controlling output characteristics of a DC...

Start-up circuit for DC fan

Method and apparatus for quiet fan speed control

Fan speed control device and method detailed description of the inv...

Fan speed controlling circuit

Self-startup circuit for DC fan

Control circuitry for controlling rotational speed of a DC motor

Motor driving system

Device for controlling a power output stage

Method for regulating the rotational speed of a motor and a motor f...

Circuit for regulating a power supply voltage

Air conditioner

Method and apparatus for controlling the speed of rotation of a dir...

Fan speed controller with conditioned tachometer signal

Method and apparatus for measuring a frequency datum

AC/DC chopper for power tool

Direct current motor safety circuits for fluid delivery systems

Electrical circuit to detect load current

Terminal protection system for portable power tools

Technique for controlling current limiter of motor

Multistage rotating speed control circuit for DC motor

Drive system

Patents Applicationslast 30 patents

STEPLESS SPEED CONTROL CIRCUIT OF ELECTRIC SPRAYER

LOAD DRIVING CIRCUIT

MINIATURE STABILIZED UNMANNED AERIAL VEHICLE GIMBAL

VOICE COIL MOTOR DRIVING CIRCUIT

ELECTRONIC FITNESS DEVICE

ROTATION SPEED CONTROL DEVICE FOR A HEAT-DISSIPATING FAN

POWER TRANSISTOR WITH TURN OFF CONTROL AND METHOD FOR OPERATING

FAN DRIVING CIRCUIT

METHOD AND APPARATUS FOR QUIET FAN SPEED CONTROL

METHOD AND APPARATUS FOR QUIET FAN SPEED CONTROL

METHOD FOR DETECTING AND CONTROLLING OUTPUT CHARACTERISTICS OF A DC...

Fan rotation speed control circuit of power supply system

Device for the Incremental Control of a Direct-Current Motor for th...

Fan speed control device and method detailed description of the inv...

METHOD AND APPARATUS FOR QUIET FAN SPEED CONTROL

FAN SPEED CONTROLLING CIRCUIT

Series resistor assembly for an electric motor, circuit arrangement...

Self-startup circuit for DC fan

Start-up circuit for DC fan

Linear power module

Motor driving system

Control circuitry for controlling rotational speed of a DC motor

Circuit for regulating a power supply voltage

Control circuitry for controlling rotational speed of a DC motor

Method and apparatus for controlling the speed of rotation of a dir...

Air conditioner