GB2526630B - Amplifier for induction loop - Google Patents
Amplifier for induction loopInfo
- Publication number
- GB2526630B GB2526630B GB1409729.9A GB201409729A GB2526630B GB 2526630 B GB2526630 B GB 2526630B GB 201409729 A GB201409729 A GB 201409729A GB 2526630 B GB2526630 B GB 2526630B
- Authority
- GB
- United Kingdom
- Prior art keywords
- amplifier
- induction loop
- induction
- loop
- 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 - Fee Related
Links
- 230000006698 induction Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
- H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
- G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
- G05F1/445—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being transistors in series with the load
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
- H04R27/02—Amplifying systems for the deaf
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/301—Indexing scheme relating to amplifiers the loading circuit of an amplifying stage comprising a coil
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Acoustics & Sound (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Amplifiers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1409729.9A GB2526630B (en) | 2014-05-30 | 2014-05-30 | Amplifier for induction loop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1409729.9A GB2526630B (en) | 2014-05-30 | 2014-05-30 | Amplifier for induction loop |
Publications (3)
Publication Number | Publication Date |
---|---|
GB201409729D0 GB201409729D0 (en) | 2014-07-16 |
GB2526630A GB2526630A (en) | 2015-12-02 |
GB2526630B true GB2526630B (en) | 2016-05-04 |
Family
ID=51214552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1409729.9A Expired - Fee Related GB2526630B (en) | 2014-05-30 | 2014-05-30 | Amplifier for induction loop |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2526630B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019128498A1 (en) | 2019-10-22 | 2021-04-22 | Avantgarde Acoustic Lautsprechersysteme Gmbh | Amplifier circuit with variable current source |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008970A1 (en) * | 1988-03-18 | 1989-09-21 | Leon Andre Pieters | Induction loop driving amplifiers |
US6501255B2 (en) * | 2000-11-21 | 2002-12-31 | Lake Shore Cryotronics, Inc. | Differential current source with active common mode reduction |
GB2449904A (en) * | 2007-06-07 | 2008-12-10 | Univ Montfort | A high-frequency current source for Electrical impedance Tomography (EIT), with compensation for amplifier gain error |
US7821496B2 (en) * | 1995-01-18 | 2010-10-26 | Immersion Corporation | Computer interface apparatus including linkage having flex |
US7937109B2 (en) * | 2008-01-24 | 2011-05-03 | Hewlett-Packard Development Company, L.P. | Current source driver for common ground signal interface |
-
2014
- 2014-05-30 GB GB1409729.9A patent/GB2526630B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989008970A1 (en) * | 1988-03-18 | 1989-09-21 | Leon Andre Pieters | Induction loop driving amplifiers |
US7821496B2 (en) * | 1995-01-18 | 2010-10-26 | Immersion Corporation | Computer interface apparatus including linkage having flex |
US6501255B2 (en) * | 2000-11-21 | 2002-12-31 | Lake Shore Cryotronics, Inc. | Differential current source with active common mode reduction |
GB2449904A (en) * | 2007-06-07 | 2008-12-10 | Univ Montfort | A high-frequency current source for Electrical impedance Tomography (EIT), with compensation for amplifier gain error |
US7937109B2 (en) * | 2008-01-24 | 2011-05-03 | Hewlett-Packard Development Company, L.P. | Current source driver for common ground signal interface |
Also Published As
Publication number | Publication date |
---|---|
GB2526630A (en) | 2015-12-02 |
GB201409729D0 (en) | 2014-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20220530 |