Title:
HYBRID VARIABLE GAIN AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2019/085830
Kind Code:
A1
Abstract:
Hybrid variable gain amplifiers and methods of controlling hybrid VGAs are disclosed. The hybrid VGA includes a first portion that provides a current path between a positive input and a positive output, and a current path either between the positive input and a negative output, in a first mode of operation, or between the positive input and a voltage source, in a second mode of operation. A second portion of the VGA provides a current path between a negative input and the negative output, and a current path either between the negative input and the positive output, in the first mode of operation, or between the negative input and the voltage source, in the second mode of operation. Control voltages selectively enable the paths in the first or second mode of operation. The control voltages further control amount of current flow in the enabled paths.
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Inventors:
TAGHIZADEH ANSARI KIMIA (CA)
ROSS TYLER NEIL (CA)
ROSS TYLER NEIL (CA)
Application Number:
PCT/CN2018/112088
Publication Date:
May 09, 2019
Filing Date:
October 26, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03G1/00
Domestic Patent References:
| WO2017172344A1 | 2017-10-05 |
Foreign References:
| CN101627547A | 2010-01-13 | |||
| US20130300502A1 | 2013-11-14 |
Other References:
See also references of EP 3698473A4
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