Amplifier circuit and methods of operation thereof
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United States of America Patent
Stats
-
Jun 20, 2017
Grant Date -
Jul 21, 2016
app pub date -
Mar 30, 2016
filing date -
Jun 30, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.
First Claim
Other Claims data not available
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International Classification(s)
- 2016 Application Filing Year
- H02M Class
- 3114 Applications Filed
- 2512 Patents Issued To-Date
- 80.67 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H02M Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
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| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 20, 2028 |
