WO2005107062A3 - Servo balancing among driver devices - Google Patents

Servo balancing among driver devices Download PDF

Info

Publication number
WO2005107062A3
WO2005107062A3 PCT/US2005/014160 US2005014160W WO2005107062A3 WO 2005107062 A3 WO2005107062 A3 WO 2005107062A3 US 2005014160 W US2005014160 W US 2005014160W WO 2005107062 A3 WO2005107062 A3 WO 2005107062A3
Authority
WO
WIPO (PCT)
Prior art keywords
drivers
driver
output
servo
designated
Prior art date
Application number
PCT/US2005/014160
Other languages
French (fr)
Other versions
WO2005107062A2 (en
Inventor
William H Laletin
Original Assignee
World Energy Labs 2 Inc
William H Laletin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by World Energy Labs 2 Inc, William H Laletin filed Critical World Energy Labs 2 Inc
Publication of WO2005107062A2 publication Critical patent/WO2005107062A2/en
Publication of WO2005107062A3 publication Critical patent/WO2005107062A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers

Abstract

A method and apparatus for reducing imbalances among the outputs of a plurality of driver devices connected in a parallel configuration to drive a common load. One driver is designated as the master, and suitable servo circuitry is provided to each of the other slave drivers, each servo being operative to force the output of its associated slave driver to accurately track the output of the designated master driver. The servo circuitry may be disposed to equalize either the output voltages or output currents of the several drivers to ensure load balancing among the drivers, to reduce cross-conduction currents and attendant power wastage and improve dynamic performance. The plurality of drivers may either operate in an open-loop configuration, or be enclosed within an overall negative feedback loop under the control of a separate controller that itself may be an amplifier.
PCT/US2005/014160 2004-04-26 2005-04-26 Servo balancing among driver devices WO2005107062A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/831,885 US7078965B2 (en) 2004-04-26 2004-04-26 Servo balancing among driver devices
US10/831,885 2004-04-26

Publications (2)

Publication Number Publication Date
WO2005107062A2 WO2005107062A2 (en) 2005-11-10
WO2005107062A3 true WO2005107062A3 (en) 2006-07-20

Family

ID=35135815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/014160 WO2005107062A2 (en) 2004-04-26 2005-04-26 Servo balancing among driver devices

Country Status (2)

Country Link
US (1) US7078965B2 (en)
WO (1) WO2005107062A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI345873B (en) * 2004-09-03 2011-07-21 Rohm Co Ltd Balanced output circuit and electronic machine using the same
US7183842B1 (en) * 2005-05-26 2007-02-27 Yu Hei Sunny Wai Optimum composite cascode amplifier
US8944454B2 (en) * 2007-10-01 2015-02-03 Pride Mobility Products Corporation Dual-track tilt mechanism
EP2341616B1 (en) * 2009-12-23 2013-04-24 STMicroelectronics Design and Application S.R.O. Capacitive load driving amplifier
US8390374B2 (en) * 2011-01-25 2013-03-05 Analog Devices, Inc. Apparatus and method for amplification with high front-end gain in the presence of large DC offsets
DE102012215755A1 (en) * 2012-09-05 2014-03-06 Robert Bosch Gmbh Low-voltage network with DC-DC converter and method for testing a low-voltage battery
US9287835B2 (en) * 2012-09-07 2016-03-15 Broadcom Corporation Low-quiescent current headset driver
EP3276808B1 (en) * 2016-07-26 2018-12-26 NXP USA, Inc. Accurate non-isolated high voltage dc-dc feedback
US10587234B2 (en) * 2017-07-12 2020-03-10 Honeywell International Inc. Non-inverting differential amplifier with configurable common-mode output signal and reduced common-mode gain
US10979009B2 (en) 2017-07-12 2021-04-13 Honeywell International Inc. Non-inverting differential amplifier with configurable common-mode output signal and reduced common-mode gain
WO2024054213A1 (en) * 2022-09-08 2024-03-14 Zeku, Inc. Driver amplifiers with differential amplifier arrays

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6717461B2 (en) * 2000-02-04 2004-04-06 The Trustees Of Columbia University In The City Of New York Circuits with dynamic biasing

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112343A (en) 1975-01-29 1978-09-05 Cornell-Dubilier Electric Corp. Bidirectional self balancing bridge
US4035718A (en) 1976-08-23 1977-07-12 Schlumberger Technology Corporation Enclosed nuclear-magnetism logging tool with compensated coil-isolating system
US4074204A (en) 1976-11-22 1978-02-14 Van Alstine Audio Systems, Inc. Equalizing amplifier
JPS5646311A (en) 1979-09-21 1981-04-27 Pioneer Electronic Corp Push-pull type amplifying circuit
JPS57211812A (en) 1981-06-24 1982-12-25 Iwatsu Electric Co Ltd Wide band amplifier
US6411098B1 (en) * 1996-03-27 2002-06-25 William H. Laletin Energy device analysis and evaluation
US6646508B1 (en) * 1996-12-30 2003-11-11 Anthony T. Barbetta Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops
US6052027A (en) 1997-04-07 2000-04-18 Bhc Consulting Pty Ltd. Wideband operational amplifier having a plurality of feedback loops
US6141169A (en) 1997-10-23 2000-10-31 Cirrus Logic, Inc. System and method for control of low frequency input levels to an amplifier and compensation of input offsets of the amplifier
DE69727934D1 (en) 1997-10-31 2004-04-08 St Microelectronics Srl Integrated power amplifier allowing parallel connections
US6160455A (en) 1998-03-10 2000-12-12 Indigo Manufacturing Inc. Derived power supply for composite bridge amplifiers
JP3512156B2 (en) 1999-02-17 2004-03-29 松下電器産業株式会社 Offset control circuit and offset control method
US6262619B1 (en) 1999-04-27 2001-07-17 International Business Machines Corporation Method and system for power amplifier offset nulling
JP3849835B2 (en) * 1999-06-23 2006-11-22 株式会社ルネサステクノロジ Semiconductor integrated circuit device
US6278263B1 (en) 1999-09-01 2001-08-21 Intersil Corporation Multi-phase converter with balanced currents
US6465993B1 (en) 1999-11-01 2002-10-15 John Clarkin Voltage regulation employing a composite feedback signal
US6636107B2 (en) 2000-03-28 2003-10-21 International Rectifier Corporation Active filter for reduction of common mode current
US6445195B1 (en) 2000-08-02 2002-09-03 The Charles Stark Draper Laboratory, Inc. Drive feedthrough nulling system
US6437645B1 (en) * 2001-02-15 2002-08-20 Texas Instruments Incorporated Slew rate boost circuitry and method
EP1408971A4 (en) 2001-06-21 2006-01-25 Ariad Pharma Inc Novel quinolines and uses thereof
US6590447B1 (en) 2002-04-02 2003-07-08 Bae Systems Information And Electronic Systems Integration Inc. Precision bridge amplifier
US6700453B2 (en) 2002-06-18 2004-03-02 Nokia Corporation Amplitude imbalance compensation of quadrature modulator
JP3776890B2 (en) * 2003-02-12 2006-05-17 日本電気株式会社 Display device drive circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6717461B2 (en) * 2000-02-04 2004-04-06 The Trustees Of Columbia University In The City Of New York Circuits with dynamic biasing

Also Published As

Publication number Publication date
US20050237109A1 (en) 2005-10-27
US7078965B2 (en) 2006-07-18
WO2005107062A2 (en) 2005-11-10

Similar Documents

Publication Publication Date Title
WO2005107062A3 (en) Servo balancing among driver devices
WO2007069239A3 (en) Apparatus, method and system for control of ac/ac conversion
WO2009044231A3 (en) A power system including a feed-back and a feed-forward control circuit
EP2579456A4 (en) Control method for fast tracking power source, fast tracking power source and system
EP1947833A3 (en) Power supply device and method of supplying power supply voltage to load device
WO2008004074A3 (en) Method and apparatus for providing adaptive supply voltage control of a power amplifier
EP1912327A3 (en) Control system for a generator
EP2540552A3 (en) Traction motor controller with dissipation mode
WO2010038229A3 (en) Actuator apparatus with comb-drive component and methods useful for manufacturing and operating same
AU2002334520A1 (en) Composite power amplifier
EP1580630A3 (en) Controller with agent functionality
WO2009045326A3 (en) Cvt control system having variable power source speed
WO2011052955A3 (en) Device and method for controlling electric product
TW200621485A (en) Press apparatus
WO2012173707A3 (en) Methods and apparatus for constant power/current control for switch-mode power converters
WO2006078546A3 (en) Methods and circuits for distributing power to spd loads
ATE545199T1 (en) CLASS H AMPLIFIER
WO2005089044A3 (en) Integrated fuel cell controller for devices
RU2014109386A (en) RAIL VEHICLE EMERGENCY BRAKE DEVICE, RAIL VEHICLE BRAKE SYSTEM AND RAIL VEHICLE
WO2007022164A3 (en) System and method for parallel control of variable frequency drives
EP1896908A4 (en) Method and apparatus for controlling a component by feed-forward closed-loop controller state modification
EP1750366A3 (en) High reliability RF generator architecture
WO2010085592A3 (en) Actuated feedforward controlled solar tracking system
WO2006112991A3 (en) Method and control circuitry for providing average current mode control in a power converter and an active power filter
WO2005043742A3 (en) Universal three phase controllers for power converters

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase