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Amplifier circuit, method and mobile communication device

An amplifier circuit and amplifier technology, applied in the field of amplifying signals, can solve the problems of design cost, time-consuming calibration process, and large workload

Active Publication Date: 2017-10-13
INTEL MOBILE COMM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is the complicated (time-consuming) calibration process
In addition, the characteristics of the output power are mostly process and temperature dependent, unless it takes a lot of effort to design

Method used

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  • Amplifier circuit, method and mobile communication device
  • Amplifier circuit, method and mobile communication device
  • Amplifier circuit, method and mobile communication device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] FIG. 1 a shows a schematic block diagram of an exemplary mobile communication device 800 .

[0026] The mobile communication device 800 includes a digital baseband processor 801 , an exemplary amplifier circuit 803 (such as one of the amplifiers described herein) and an antenna 211 . Amplifier circuit 803 is coupled between digital baseband processor 801 and antenna 211 . As an example, the digital baseband processor 801 provides the first amplifier input signal 113 to the amplifier circuit 803 and the antenna 211 is configured to retransmit the output signal 117 of the amplifier circuit 803 .

[0027] In one embodiment, the mobile communication device 800 may be a portable mobile communication device.

[0028] As an example, the mobile communication device 800 can be configured to perform voice and / or data communication (according to mobile communication standards) with another (portable) mobile communication device and / or a mobile communication base station. Such mo...

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PUM

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Abstract

The amplifier circuit includes: a gain controller; a first amplifier; and a second amplifier coupled in series to the first amplifier, wherein the second amplifier includes a plurality of amplification units. The gain controller is configured to receive a desired gain value, provide a gain adjustment signal to the first amplifier based on the received desired gain value, and activate an amplifying unit of the plurality of amplifying units of the second amplifier based on the received desired gain value. A certain combination makes the combined gain of the active amplifying units of the first amplifier and the second amplifier correspond to the received expected gain value.

Description

technical field [0001] The present invention relates to amplifier circuits and mobile communication devices. Furthermore, the invention relates to a method for amplifying a signal. Background technique [0002] In general, absolute and relative accuracy of power adjustment can be required for any transmission device. This accuracy requirement will be achievable with less effort (eg calibration) due to time and cost issues. [0003] In conventional systems, the relationship between output power and the control parameters used to adjust the power is non-linear. The disadvantage is the complicated (time-consuming) calibration process. Furthermore, the characteristics of the output power are mostly very process and temperature dependent unless there is significant effort to the design. Contents of the invention [0004] The present invention relates to an amplifier circuit comprising: a gain controller; a first amplifier; and a second amplifier coupled in series to the fir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F3/20H03G3/20H04B7/14
CPCH03F1/0277H03F3/195H03F3/211H03F3/245H03F3/72H03F2200/411H03F2203/21136H03F2203/21142H03F2203/7215H03F2203/7236H03G3/3042
Inventor G·埃施尔贝克C·迈耶A·施瓦茨H·亨宁森K·希尔施
Owner INTEL MOBILE COMM GMBH
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