GB1290304A - - Google Patents

Info

Publication number
GB1290304A
GB1290304A GB1290304DA GB1290304A GB 1290304 A GB1290304 A GB 1290304A GB 1290304D A GB1290304D A GB 1290304DA GB 1290304 A GB1290304 A GB 1290304A
Authority
GB
United Kingdom
Prior art keywords
transistor
sinusoidal signal
winding
input
primary winding
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1290304A publication Critical patent/GB1290304A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2176—Class E amplifiers
    • 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
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB1290304D 1970-06-10 1971-05-20 Expired GB1290304A (forum.php)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4516370A 1970-06-10 1970-06-10

Publications (1)

Publication Number Publication Date
GB1290304A true GB1290304A (forum.php) 1972-09-27

Family

ID=21936339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1290304D Expired GB1290304A (forum.php) 1970-06-10 1971-05-20

Country Status (7)

Country Link
US (1) US3648188A (forum.php)
CA (1) CA939759A (forum.php)
DE (1) DE2126469A1 (forum.php)
FR (1) FR2096158A5 (forum.php)
GB (1) GB1290304A (forum.php)
NL (1) NL7107952A (forum.php)
SE (1) SE376133B (forum.php)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1885060A3 (de) * 2006-07-28 2008-04-30 Siemens Audiologische Technik GmbH Verstärker für einen Radiofrequenzsender zum Übertragen eines Sendesignals an eine otologische Vorrichtung
US7513896B2 (en) * 2006-01-24 2009-04-07 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
US7648499B2 (en) * 2006-03-21 2010-01-19 Covidien Ag System and method for generating radio frequency energy
US8485993B2 (en) 2003-10-30 2013-07-16 Covidien Ag Switched resonant ultrasonic power amplifier system
US8486061B2 (en) 2009-01-12 2013-07-16 Covidien Lp Imaginary impedance process monitoring and intelligent shut-off
US8647340B2 (en) 2003-10-23 2014-02-11 Covidien Ag Thermocouple measurement system
US9270202B2 (en) 2013-03-11 2016-02-23 Covidien Lp Constant power inverter with crest factor control
US9283028B2 (en) 2013-03-15 2016-03-15 Covidien Lp Crest-factor control of phase-shifted inverter
US9529025B2 (en) 2012-06-29 2016-12-27 Covidien Lp Systems and methods for measuring the frequency of signals generated by high frequency medical devices
US9636165B2 (en) 2013-07-29 2017-05-02 Covidien Lp Systems and methods for measuring tissue impedance through an electrosurgical cable
US9872719B2 (en) 2013-07-24 2018-01-23 Covidien Lp Systems and methods for generating electrosurgical energy using a multistage power converter
US10610285B2 (en) 2013-07-19 2020-04-07 Covidien Lp Electrosurgical generators
US10729484B2 (en) 2013-07-16 2020-08-04 Covidien Lp Electrosurgical generator with continuously and arbitrarily variable crest factor
US11006997B2 (en) 2016-08-09 2021-05-18 Covidien Lp Ultrasonic and radiofrequency energy production and control from a single power converter
US12226143B2 (en) 2020-06-22 2025-02-18 Covidien Lp Universal surgical footswitch toggling

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859604A (en) * 1972-07-26 1975-01-07 John Charles Rankin Isolated amplifier
US3863170A (en) * 1973-02-21 1975-01-28 Bendix Corp Thermally stable power amplifier
US5834871A (en) * 1996-08-05 1998-11-10 Puskas; William L. Apparatus and methods for cleaning and/or processing delicate parts
US6016821A (en) 1996-09-24 2000-01-25 Puskas; William L. Systems and methods for ultrasonically processing delicate parts
US4598212A (en) * 1984-12-17 1986-07-01 Honeywell, Inc. Driver circuit
US4879525A (en) * 1988-12-05 1989-11-07 Q-Bit Corporation High gain RF amplifier with directional coupler feedback
US7336019B1 (en) 2005-07-01 2008-02-26 Puskas William L Apparatus, circuitry, signals, probes and methods for cleaning and/or processing with sound
US7211928B2 (en) * 1996-08-05 2007-05-01 Puskas William L Apparatus, circuitry, signals and methods for cleaning and/or processing with sound
US8075695B2 (en) * 1996-08-05 2011-12-13 Puskas William L Apparatus, circuitry, signals, probes and methods for cleaning and/or processing with sound
US6822372B2 (en) * 1999-08-09 2004-11-23 William L. Puskas Apparatus, circuitry and methods for cleaning and/or processing with sound waves
US20060086604A1 (en) * 1996-09-24 2006-04-27 Puskas William L Organism inactivation method and system
US7211927B2 (en) * 1996-09-24 2007-05-01 William Puskas Multi-generator system for an ultrasonic processing tank
US7741753B2 (en) * 1996-08-05 2010-06-22 Puskas William L Megasonic apparatus, circuitry, signals and methods for cleaning and/or processing
US6313565B1 (en) 2000-02-15 2001-11-06 William L. Puskas Multiple frequency cleaning system
US20080047575A1 (en) * 1996-09-24 2008-02-28 Puskas William L Apparatus, circuitry, signals and methods for cleaning and processing with sound
EP1047186A1 (en) * 1999-04-19 2000-10-25 Semiconductor Ideas to The Market (ItoM) BV Amplifier form communication device
JP7411411B2 (ja) * 2019-12-27 2024-01-11 ローランド株式会社 楽音信号の増幅器
US11689163B2 (en) * 2019-12-31 2023-06-27 Skyworks Solutions, Inc. Load insensitive power detection
US11975358B1 (en) 2021-06-24 2024-05-07 Cleaning Technologies Group, Llc Ultrasonic RF generator with automatically controllable output tuning

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL239629A (forum.php) * 1958-05-28
US2954527A (en) * 1959-10-02 1960-09-27 Avco Corp Single transistor threshold circuit
US3206694A (en) * 1961-05-23 1965-09-14 Gulton Ind Inc Synchronized inverter circuit
US3239772A (en) * 1963-02-06 1966-03-08 Westinghouse Electric Corp Highly efficient semiconductor switching amplifier
US3415949A (en) * 1964-11-16 1968-12-10 Dimension Inc Frequency burst synchronization circuit
US3471796A (en) * 1966-10-13 1969-10-07 Motorola Inc Power amplifier including plurality of transistors operating in parallel

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8647340B2 (en) 2003-10-23 2014-02-11 Covidien Ag Thermocouple measurement system
US9768373B2 (en) 2003-10-30 2017-09-19 Covidien Ag Switched resonant ultrasonic power amplifier system
US8485993B2 (en) 2003-10-30 2013-07-16 Covidien Ag Switched resonant ultrasonic power amplifier system
US8966981B2 (en) 2003-10-30 2015-03-03 Covidien Ag Switched resonant ultrasonic power amplifier system
US7513896B2 (en) * 2006-01-24 2009-04-07 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
US20090157073A1 (en) * 2006-01-24 2009-06-18 Sherwood Services Ag Dual Synchro-Resonant Electrosurgical Apparatus with Bi-Directional Magnetic Coupling
US20090237169A1 (en) * 2006-01-24 2009-09-24 Covidien Ag Dual Synchro-Resonant Electrosurgical Apparatus With Bi-Directional Magnetic Coupling
US8187262B2 (en) * 2006-01-24 2012-05-29 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
US8202271B2 (en) * 2006-01-24 2012-06-19 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
US7648499B2 (en) * 2006-03-21 2010-01-19 Covidien Ag System and method for generating radio frequency energy
EP1885060A3 (de) * 2006-07-28 2008-04-30 Siemens Audiologische Technik GmbH Verstärker für einen Radiofrequenzsender zum Übertragen eines Sendesignals an eine otologische Vorrichtung
US8486061B2 (en) 2009-01-12 2013-07-16 Covidien Lp Imaginary impedance process monitoring and intelligent shut-off
US10073125B2 (en) 2012-06-29 2018-09-11 Covidien Lp Systems and methods for measuring the frequency of signals generated by high frequency medical devices
US9529025B2 (en) 2012-06-29 2016-12-27 Covidien Lp Systems and methods for measuring the frequency of signals generated by high frequency medical devices
US10338115B2 (en) 2012-06-29 2019-07-02 Covidien Lp Systems and methods for measuring the frequency of signals generated by high frequency medical devices
US9270202B2 (en) 2013-03-11 2016-02-23 Covidien Lp Constant power inverter with crest factor control
US9283028B2 (en) 2013-03-15 2016-03-15 Covidien Lp Crest-factor control of phase-shifted inverter
US10729484B2 (en) 2013-07-16 2020-08-04 Covidien Lp Electrosurgical generator with continuously and arbitrarily variable crest factor
US10610285B2 (en) 2013-07-19 2020-04-07 Covidien Lp Electrosurgical generators
US9872719B2 (en) 2013-07-24 2018-01-23 Covidien Lp Systems and methods for generating electrosurgical energy using a multistage power converter
US11135001B2 (en) 2013-07-24 2021-10-05 Covidien Lp Systems and methods for generating electrosurgical energy using a multistage power converter
US9655670B2 (en) 2013-07-29 2017-05-23 Covidien Lp Systems and methods for measuring tissue impedance through an electrosurgical cable
US9636165B2 (en) 2013-07-29 2017-05-02 Covidien Lp Systems and methods for measuring tissue impedance through an electrosurgical cable
US11006997B2 (en) 2016-08-09 2021-05-18 Covidien Lp Ultrasonic and radiofrequency energy production and control from a single power converter
US12426936B2 (en) 2016-08-09 2025-09-30 Covidien Lp Ultrasonic and radiofrequency energy production and control from a single power converter
US12226143B2 (en) 2020-06-22 2025-02-18 Covidien Lp Universal surgical footswitch toggling

Also Published As

Publication number Publication date
CA939759A (en) 1974-01-08
DE2126469A1 (de) 1972-06-22
FR2096158A5 (forum.php) 1972-02-11
NL7107952A (forum.php) 1971-12-14
SE376133B (forum.php) 1975-05-05
US3648188A (en) 1972-03-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee