US Patent Application No: 2008/0144,341

Number of patents in Portfolio can not be more than 2000

POWER CONVERTER

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A switch-type power converter includes a double FET switch operating in a variable duty cycle mode under the control of a Unitrode 3846 integrated circuit controller. Indications of excess input voltage and reverse battery connections are provided by circuits including an element which permanently changes state. A cooling fan mounted on a finned heat sink is operated in a variable speed mode.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PROGRESSIVE DYNAMICS, INC.MARSHALL, MI21

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cook, James C Marshall, MI 5 79

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 4,871,957 Method and apparatus for the automatic connection of battery cables 22 1988
* 5,202,811 Electrical power system with high voltage protection responsive to plural control voltages 12 1990
 
Power Integrations, Inc. (1)
* 5,285,367 Linear load circuit to control switching power supplies under minimum load conditions 69 1992
 
Jetronic Industries, Inc. (1)
* 4,564,800 Battery charger 25 1984
 
PWER BRIDGE, LLC (2)
* 5,254,932 Charging voltage control circuit for battery chargers 8 1990
* 5,192,905 Charging voltage control and current limit for battery chargers 22 1991
 
ZENITH ELECTRONICS CORPORATION (1)
* 4,717,994 Current mode control for DC converters operating over 50% duty cycle 39 1986
 
Plant Specialties Company (1)
* 4,589,475 Heat recovery system employing a temperature controlled variable speed fan 45 1983
 
La Telemecanique Electrique (1)
* 4,415,945 Detector apparatus of the two-terminal type supplied with rectified A.C. power the voltage of which can vary in a wide range, with load control by switching thyristors 9 1981
 
JDS UNIPHASE CORPORATION (1)
* 4,959,606 Current mode switching regulator with programmed offtime 92 1989
 
ALLIED-SIGNAL INC. (1)
* 5,168,436 Uninterruptible power supply 8 1990
 
STEP TECHNOLOGIES, A MINNESOTA CORPORATION (1)
* 5,019,717 Computer-controlled uninterruptable power supply 102 1988
 
XANTREX TECHNOLOGY INC. (2)
* 4,742,441 High frequency switching power converter 39 1986
* 5,155,672 Switched multi-tapped transformer power conversion method and apparatus 36 1990
 
ELEGANT DESIGN SOLUTIONS INC., A CORP. OF OR (1)
* 5,184,025 Computer-controlled uninterruptible power supply 87 1991
 
ROCKWELL INTERNATIONAL CORPORATION (1)
* 4,709,315 Isolated controller circuit 21 1986
 
Nuvatec, Inc. (2)
* 4,499,385 Recreational vehicle power control system 23 1983
* 4,617,472 Recreational vehicle power control system 31 1984
 
RICHTER & PARTNERS INC., AS RECEIVER (2)
* 5,670,861 Battery energy monitoring circuits 44 1995
* 5,680,031 Method and apparatus for charging batteries 28 1996
 
Canon Kabushiki Kaisha (1)
* 5,297,014 Switching DC power supply apparatus 71 1992
 
Thames Television Limited (1)
* 4,385,269 Battery charger 152 1981
 
CUMMINS POWERGEN IP, INC. (1)
* 5,293,145 Switch battery charger with reduced electromagnetic emission 18 1993
 
SANSHA ELECTRIC MANUFACTURING COMPANY, LIMITED (1)
* 5,825,642 Power supply apparatus 26 1997
 
Progressive Dynamics, Inc. (2)
* 5,600,550 Power converter for recreational vehicles and the like 22 1994
* 5,687,066 Power converter with overvoltage protection 37 1995
 
SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD. (2)
* 6,396,231 Fan motor having two-stage speed control 26 2001
* 6,407,525 Thermal control variable speed fan motor 18 2001
 
LENOVO (SINGAPORE) PTE LTD. (1)
* 5,349,668 Battery operated computer having improved battery monitor and cell reversal protection circuit 47 1992
 
Tensor Development, Inc. (1)
* 4,891,764 Program controlled force measurement and control system 287 1987
 
AOPEN INC. (1)
* 2004/0264,125 Computer cooling system 3 2003
 
Midtronics, Inc. (1)
* 5,583,416 Apparatus and method for step-charging batteries to optimize charge acceptance 158 1994
 
VANNER, INC. (1)
* 5,077,652 Dual feedback loop DC-to-AC converter 30 1990
 
National Semiconductor Corporation (1)
* 6,751,282 Signal active percentage monitor 2 2003
 
LJM PRODUCTS, LP DBA JMC PRODUCTS (1)
* 6,545,438 Cooling module and related control circuits useful therefor incorporating a communication port for receiving digital command signals to control module 78 2000
 
PREMIER POWER, INC. (1)
* 5,428,267 Regulated DC power supply 29 1992
 
MITAC TECHNOLOGY CORP. (2)
* 2002/0187,049 Fan protection device 0 2001
* 6,551,065 Fan protection device 9 2001
 
HEART INTERFACE CORPORATION (1)
* 4,564,896 Inverter with improved operating efficiencies 10 1984
 
PANASONIC ELECTRIC WORKS CO., LTD. (1)
* 5,034,871 DC to DC converter with steady control of output DC voltage by monitoring output DC current 77 1990
 
DELTA ELECTRONICS, INC. (2)
* 6,779,981 Fan control system using a microcontroller 10 2002
* 2004/0207,966 Fan protection method and apparatus 0 2003
 
PERFECT GALAXY INTERNATIONAL LIMITED (1)
* 5,736,831 Power limiting circuit for electric vehicle battery charger 14 1996
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
8,452,566 Warranty monitoring and enforcement for integrated circuit and related design structure 0 2008
* 2009/0276,178 WARRANTY MONITORING AND ENFORCEMENT FOR INTEGRATED CIRCUIT AND RELATED DESIGN STRUCTURE 4 2008
 
Other [Check patent profile for assignment information] (1)
* 8,801,479 Hydraulic marine jack plate position indicator system 0 2012
 
HON HAI PRECISION INDUSTRY CO., LTD. (4)
* 8,310,371 Power supply protection device 0 2008
* 2009/0243,870 POWER SUPPLY PROTECTION DEVICE 2 2008
* 2013/0088,805 OVERHEATING PROTECTION CIRCUIT FOR ELECTRONIC DEVICES 0 2012
* 2014/0001,862 UNINTERRUPTIBLE POWER SUPPLY 0 2012
 
REGAL BELOIT AMERICA, INC. (4)
* 9,030,143 Method and system of limiting current to a motor 0 2011
* 8,975,845 Motor operation failure detection 0 2011
* 2013/0106,334 VARIABLE SPEED MOTOR POWER DE-RATING (LIMITING) SYSTEM AND METHOD FOR OPERATING A MOTOR WITH THE SAME 0 2011
* 2013/0106,331 MOTOR OPERATION FAILURE DETECTION 0 2011
 
IXYS CORPORATION (3)
* 9,225,260 High-efficiency, low-power power supply circuit 0 2012
* 2014/0043,878 High-Efficiency, Low-Power Power Supply Circuit 0 2012
* 9,054,587 Non-isolated AC-to-DC converter having a low charging current initial power up mode 0 2014
 
GENERAL INSTRUMENT CORPORATION (1)
* 2007/0105,415 Power connector with automatic power control 6 2005
 
TESLA MOTORS, INC. (1)
* 8,638,069 Bidirectional polyphase multimode converter including boost and buck-boost modes 0 2013
* Cited By Examiner