Design of Current Limiting Circuit in Low Dropout Linear Voltage Regulator

2006 ◽  
Author(s):  
Lin Chuan ◽  
Feng Quan-yuan
Keyword(s):  
Voltage Regulator ◽  
Current Limiting ◽  
Linear Voltage

A CMOS SiC Linear Voltage Regulator for High Temperature Applications

2016 ◽  
Vol 2016 (HiTEC) ◽  
pp. 000106-000111 ◽  
Author(s):  
R.C. Murphree ◽  
S. Ahmed ◽  
M. Barlow ◽  
A. Rahman ◽  
H.A. Mantooth ◽  
...  
Keyword(s):  
Feedback Loop ◽  
Input Voltage ◽  
Voltage Regulator ◽  
Voltage Reference ◽  
Frequency Compensation ◽  
Error Amplifier ◽  
Linear Regulator ◽  
Load Regulation ◽  
Pass Transistor ◽  
Linear Voltage

Abstract This paper establishes the first linear regulator in a 1.2 μm CMOS silicon carbide (SiC) process. The linear regulator presented consists of a SiC error amplifier and a pass transistor which has a W/L = 70,000 μm / 1.2 μm. The feedback loop is internal and the frequency compensation network is a combination of internal and external components. As a result of potential process variation in this emerging technology, the voltage reference used at the negative input terminal of the error amplifier has been made external. With an input voltage of 20 V to 30 V, the voltage regulator is able to provide a 15 V output and a continuous load current of 100 mA at temperatures ranging from 25 °C to over 400 °C. At a temperature of 400 °C, testing of the fabricated circuit has shown line regulation of less than 4 mV/V. Under the same test conditions, a load regulation of less than 420 mV/A is achieved.

scholarly journals Application Features of Thyristor Regulators to Control the Light Flux in Industrial Fishing

2021 ◽  
Vol 320 ◽  
pp. 01015
Author(s):  
E.P. Matafonova ◽  
S.B. Burkhanov
Keyword(s):  
Power Supply ◽  
Light Flux ◽  
Synchronous Generator ◽  
Voltage Regulator ◽  
Light Sources ◽  
Stator Windings ◽  
Three Phase ◽  
Current Limiting ◽  
Wire System ◽  
Generator Stator

To control the intensity of the light flux when fishing saury it is necessary to widely change the voltage of the lighting fishing equipment. It is reasonable to carry out this by controlling additionally installed thyristor regulators supplying individual symmetric three-phase groups of light sources that will ensure balanced loading of the synchronous generator stator windings. In this research the features of using a thyristor voltage regulator in a four-wire system of ship power supply are studied based on mathematical analysis, conclusions are made using computer modeling and the use of current limiting reactors is justified.

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