Optimization methods for amplifier with variable supply power
US-9219445-B2 · Dec 22, 2015 · US
Amplifying device
US9065404B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9065404-B2 |
| Application number | US-201213979461-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 12, 2012 |
| Priority date | Jan 14, 2011 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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Abstract
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To effectively control the amplitude vs. power supply voltage characteristics, for example, in an ET amplifier. An amplifying device for amplifying an input signal wherein: amplifier means ( 4 ) amplifies the input signal; amplification control means ( 5, 7 ) control the power supply voltage to the amplification means on the basis of the input signal; first detection means ( 14 ) detects the amplification factor between the input signal and a feedback signal obtained by means of a feedback of the signal that has been amplified by the amplification means; second detection means ( 14 ) detects the variance of the amplification factors for each value or range of the amplitude of the input signal; and amplification control update means ( 14 ) performs an update so as to increase the power supply voltage with respect to a value or range of amplitude that exhibits a variance in excess of a predetermined threshold value, or to reduce the power supply voltage with respect to a value or range of amplitude that exhibits a variance lower than the predetermined threshold value.
First claim
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The invention claimed is: 1. An amplifying device that amplifies an input signal, comprising: amplification means that amplifies the input signal; amplification control means that controls a power supply voltage, which is supplied to the amplification means, based on the input signal; first detection means that detects a amplification factor or a phase difference between the input signal and a feedback signal generated by feeding back a signal amplified by the amplification me…
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- H03F1/0222Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9065404B2 cover?
- To effectively control the amplitude vs. power supply voltage characteristics, for example, in an ET amplifier. An amplifying device for amplifying an input signal wherein: amplifier means ( 4 ) amplifies the input signal; amplification control means ( 5, 7 ) control the power supply voltage to the amplification means on the basis of the input signal; first detection means ( 14 ) detects the am…
- Who is the assignee on this patent?
- Hongo Naoki, Hitachi Int Electric Inc
- What technology area does this patent fall under?
- Primary CPC classification H03F1/0222. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 23 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).