US Patent No: 5,559,478

Number of patents in Portfolio can not be more than 2000

Highly efficient, complementary, resonant pulse generation

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Abstract

A power source, inductor and clamping device coupled to generate substantially sinusoidal drive pulses. The power source has an output capacitance. The inductor is connected to the power source and to the load to be driven. In combination with the inductor, the output capacitance of the power source and the input capacitance of the load to be driven create a resonant circuit which generates a stream of substantially sinusoidal pulses. A clamping device is connected to the inductor and prevents the stream of pulses which are driving the load from exceeding a clamping level. In one preferred embodiment, a complementary set of clamping devices and inductors are used to generate a complementary set of pulse streams.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
UNIVERSITY OF SOUTHERN CALIFORNIALOS ANGELES, CA865

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Athas, William C San Jose, CA 76 288
Svensson, Lars G Gothenburg, SE 17 67

Cited Art

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
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4,862,113 Sinusoidal oscillator with instant start-up 7 1988
 
BELL TELEPHONE LABORATORIES, INCORPORATED (1)
4,605,999 Self-oscillating high frequency power converter 43 1985
 
HEWLETT-PACKARD COMPANY (1)
4,707,692 Electroluminescent display drive system 54 1984
 
NORTH AMERICAN PHILIPS CORPORATION (1)
4,920,474 High frequency high voltage power supply with controlled output power 18 1989
 
OSRAM SYLVANIA INC. (1)
5,150,013 Power converter employing a multivibrator-inverter 13 1991
 
SONY CORPORATION (1)
5,051,668 Sine wave deflecting circuit 8 1990
 
U.S. PHILIPS CORPORATION (1)
5,107,136 Control circuit for at least one clock electrode of an integrated circuit 12 1990

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
UNIVERSITY OF SOUTHERN CALIFORNIA (6)
RE37552 System and method for power-efficient charging and discharging of a capacitive load from a single source 14 1997
6,985,142 Power-efficient, pulsed driving of capacitive loads to controllable voltage levels 3 1999
7,075,347 Multiphase resonant pulse generators 1 2001
RE42066 System and method for power-efficient charging and discharging of a capacitive load from a single source 1 2005
7,663,618 Power-efficient, pulsed driving of capacitive loads to controllable voltage levels 0 2005
7,202,712 Multiphase resonant pulse generators 3 2006
 
CYCLOS SEMICONDUCTOR, INC. (5)
8,400,192 Architecture for frequency-scaled operation in resonant clock distribution networks 0 2010
8,368,450 Architecture for adjusting natural frequency in resonant clock distribution networks 0 2010
8,362,811 Architecture for single-stepping in resonant clock distribution networks 0 2010
8,358,163 Resonant clock distribution network architecture for tracking parameter variations in conventional clock distribution networks 0 2010
8,339,209 Method for selecting natural frequency in resonant clock distribution networks with no inductor overhead 0 2010
 
THE REGENTS OF THE UNIVERSITY OF MICHIGAN (5)
7,398,375 Technique for reduced-tag dynamic scheduling and reduced-tag prediction 1 2003
6,879,190 Low-power driver with energy recovery 11 2003
6,777,992 Low-power CMOS flip-flop 8 2003
6,742,132 Method and apparatus for generating a clock signal having a driven oscillator circuit formed with energy storage characteristics of a memory storage device 6 2003
7,622,977 Ramped clock digital storage control 4 2006
 
INNURVATION IP, LLC (4)
6,297,668 Serial device compaction for improving integrated circuit layouts 13 1999
6,252,448 Coincident complementary clock generator for logic circuits 8 1999
6,198,324 Flip flops 10 1999
6,333,656 Flip-flops 26 2000
 
PICONETICS INTELLECTUAL PROPERTY TRUST (4)
6,448,816 Resonant logic and the implementation of low power digital integrated circuits 1 2000
6,559,681 Resonant logic and the implementation of low power digital integrated circuits 7 2001
6,812,745 Resonant logic and the implementation of low power digital integrated circuits 0 2003
7,142,020 Resonant logic and the implementation of low power digital integrated circuits 0 2004
 
APPLE INC. (3)
8,320,141 High-efficiency, switched-capacitor power conversion using a resonant clocking circuit to produce gate drive signals for switching capacitors 0 2009
7,982,548 Resonant oscillator with oscillation-startup circuitry 0 2009
8,085,103 Resonant oscillator circuit with reduced startup transients 0 2009
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
7,237,217 Resonant tree driven clock distribution grid 1 2003
7,571,410 Resonant tree driven clock distribution grid 0 2007
 
MEDTRONIC, INC. (2)
6,438,422 Power dissipation reduction in medical devices using adiabatic logic 12 1999
6,415,181 Implantable medical device incorporating adiabatic clock-powered logic 7 2000
 
STMICROELECTRONICS S.R.L. (2)
6,181,031 System for driving a reactive load 1 1998
6,538,346 System for driving a reactive load 7 2000
 
LUCENT TECHNOLOGIES INC. (1)
5,995,688 Micro-opto-electromechanical devices and method therefor 70 1998
 
ROSE RESEARCH, L.L.C. (1)
6,777,684 Systems and methods for millimeter and sub-millimeter wave imaging 62 2000
 
ROSSELLA LIMITED (1)
6,108,000 Resonant driver apparatus and method 9 1998
 
SAMSUNG ELECTRONICS CO., LTD. (1)
6,542,002 Hybrid power supply circuit and method for charging/discharging a logic circuit using the same 7 2002
 
THOMSON LICENSING (1)
6,166,926 Zero voltage switching power supply with burst mode 5 2000
 
U.S. PHILIPS CORPORATION (1)
5,821,923 Picture display device 9 1996
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (3)
7,479,838 Energy efficient waveform generation using tuned resonators 0 2006
7,782,149 Energy efficient waveform generation using tuned resonators 0 2009
7,872,539 Energy efficient waveform generation using tuned resonators 0 2010