Automatic gain control in cascaded erbium doped fibre amplifier systems

1991 ◽  
Vol 27 (3) ◽  
pp. 193 ◽  
Author(s):  
A.D. Ellis ◽  
R.M. Percival ◽  
A. Lord ◽  
W.A. Stallard
Keyword(s):  
Automatic Gain Control ◽  
Gain Control ◽  
Fibre Amplifier ◽  
Erbium Doped

1480 nm pumped erbium doped fibre amplifier with all optical automatic gain control

1994 ◽  
Vol 30 (12) ◽  
pp. 962-964 ◽  
Author(s):  
J.F. Massicott ◽  
R.A. Lobbett ◽  
J.R. Armitage ◽  
S.D. Willson ◽  
R. Kashyap ◽  
...  
Keyword(s):  
Automatic Gain Control ◽  
Gain Control ◽  
Fibre Amplifier ◽  
Erbium Doped ◽  
All Optical

An output power stabilized erbium-doped fiber amplifier with automatic gain control

1997 ◽  
Vol 3 (4) ◽  
pp. 1019-1026 ◽  
Author(s):  
N. Takahashi ◽  
T. Hirono ◽  
H. Akashi ◽  
S. Takahashi ◽  
T. Sasaki
Keyword(s):  
Output Power ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Fiber Amplifier ◽  
Erbium Doped Fiber Amplifier ◽  
Erbium Doped

Thermal properties of an erbium-doped fibre amplifier

1990 ◽  
Vol 137 (3) ◽  
pp. 155 ◽  
Author(s):  
C.A. Millar ◽  
T.J. Whitley ◽  
S.C. Fleming
Keyword(s):  
Thermal Properties ◽  
Fibre Amplifier ◽  
Erbium Doped

Efficient erbium-doped fibre amplifier pumped at 820 nm

1990 ◽  
Vol 26 (23) ◽  
pp. 1936 ◽  
Author(s):  
M. Nakazawa ◽  
Y. Kimura ◽  
E. Yoshida ◽  
K. Suzuki
Keyword(s):  
Fibre Amplifier ◽  
Erbium Doped

scholarly journals Measuring Current in a Power Converter Using Fuzzy Automatic Gain Control

2021 ◽  
Vol 11 (13) ◽  
pp. 5793
Author(s):  
Bartosz Dominikowski
Keyword(s):  
High Resolution ◽  
Fuzzy Controller ◽  
Automatic Gain Control ◽  
Gain Control ◽  
Measurement Range ◽  
Power Converter ◽  
Current Measurement ◽  
Dc Power ◽  
Programmable Gain ◽  
Electric Loads

The accuracy of current measurements can be increased by appropriate amplification of the signal to within the measurement range. Accurate current measurement is important for energy monitoring and in power converter control systems. Resistance and inductive current transducers are used to measure the major current in AC/DC power converters. The output value of the current transducer depends on the load motor, and changes across the whole measurement range. Modern current measurement circuits are equipped with operational amplifiers with constant or programmable gain. These circuits are not able to measure small input currents with high resolution. This article proposes a precise loop gain system that can be implemented with various algorithms. Computer analysis of various automatic gain control (AGC) systems proved the effectiveness of the Mamdani controller, which was implemented in an MCU (microprocessor). The proposed fuzzy controller continuously determines the value of the conversion factor. The system also enables high resolution measurements of the current emitted from small electric loads (≥1 A) when the electric motor is stationary.

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