GB0716762D0 - Class D amplifier - Google Patents
Class D amplifierInfo
- Publication number
- GB0716762D0 GB0716762D0 GBGB0716762.0A GB0716762A GB0716762D0 GB 0716762 D0 GB0716762 D0 GB 0716762D0 GB 0716762 A GB0716762 A GB 0716762A GB 0716762 D0 GB0716762 D0 GB 0716762D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- amplifier
- class
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3006—Compensating for, or preventing of, undesired influence of physical parameters
- H03M7/3008—Compensating for, or preventing of, undesired influence of physical parameters by averaging out the errors, e.g. using dither
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
- H03M7/3028—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
- H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs
- H03M7/304—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0716762A GB2438774B (en) | 2003-09-15 | 2003-09-15 | Class D amplifier |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0321589A GB2406008B (en) | 2003-09-15 | 2003-09-15 | Class D amplifier |
GB0716762A GB2438774B (en) | 2003-09-15 | 2003-09-15 | Class D amplifier |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0716762D0 true GB0716762D0 (en) | 2007-10-10 |
GB2438774A GB2438774A (en) | 2007-12-05 |
GB2438774B GB2438774B (en) | 2008-04-16 |
Family
ID=38616903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0716762A Expired - Lifetime GB2438774B (en) | 2003-09-15 | 2003-09-15 | Class D amplifier |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2438774B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011121139B4 (en) | 2011-12-15 | 2016-11-24 | IAD Gesellschaft für Informatik, Automatisierung und Datenverarbeitung mbH | Device having a delta-sigma modulator and a MOSFET output stage connected thereto |
US8717096B2 (en) * | 2012-02-17 | 2014-05-06 | NeoEnergy Microelectronics, Inc. | Switching amplifier system and method for suppressing signal distortion thereof |
CN107947800B (en) * | 2017-11-08 | 2021-07-16 | 中国电子科技集团公司电子科学研究院 | Low-delay loop detection method of binary LDPC code |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19854124C1 (en) * | 1998-11-24 | 2000-08-24 | Bosch Gmbh Robert | Sigma-Delta D / A converter |
-
2003
- 2003-09-15 GB GB0716762A patent/GB2438774B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2438774B (en) | 2008-04-16 |
GB2438774A (en) | 2007-12-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20150820 AND 20150826 |
|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20230914 |