Thin-film magnetoresistive current sensors

2019 ◽  
pp. 59-64
Author(s):  
V. I. Sukhanov ◽  
A. B. Grabov
Keyword(s):  
Thin Film ◽  
Electric Circuit ◽  
Current Control ◽  
Electronic Apparatus ◽  
Current Sensors

The article presents some features of thin-film magnetoresistive current sensors and detectors that was developed in JSC NPO IT for noncontact current control in electric circuit aviation and cosmic electronic apparatus.

Thin film head characteristics studied by inductance change from bias current control

1992 ◽  
Vol 28 (5) ◽  
pp. 2109-2111 ◽  
Author(s):  
K. Kawakami ◽  
T. Ohtu ◽  
H. Homma
Keyword(s):  
Thin Film ◽  
Bias Current ◽  
Current Control

Critical current control in a superconducting thin film with a ferromagnetic layer

2003 ◽  
Vol 13 (2) ◽  
pp. 2849-2852 ◽  
Author(s):  
M.D. Allsworth ◽  
R.A. Chakalov ◽  
P. Mikheenko ◽  
M.S. Colclough ◽  
C.M. Muirhead
Keyword(s):  
Thin Film ◽  
Critical Current ◽  
Ferromagnetic Layer ◽  
Current Control ◽  
Superconducting Thin Film

Research on the Performance of 3-State Power Amplifiers for Magnetic Bearings

2013 ◽  
Vol 389 ◽  
pp. 245-250
Author(s):  
Zhi Li Li ◽  
Kai Zhang ◽  
Xing Jian Dai
Keyword(s):  
Power Amplifier ◽  
Power Amplifiers ◽  
Current Control ◽  
Experimental Results ◽  
Control Mode ◽  
Current Sensor ◽  
Performance Difference ◽  
Actual Use ◽  
Current Sensors ◽  
Current Ripples

The performance of the power amplifier is closely related to their hardware components and current control modes. The work was focused on comparison of the experimental results based on different current sensors and the application of two different current control modes for 3-state amplifiers. When the same control mode was used, three kind of current sensors were tested and the corresponding amplifier current ripples were measured. Experimental results shown that when using a faster current sensor, the amplifier achieved smaller current ripples. Then a 3-state PWM current control mode and a Sample-Hold current control mode were compared based on the power amplifier circuit with the same hardware components. The performance difference in the experiments were studied and explained. The 3-state PWM power amplifier could achieve a better performance in actual use.

Investigation of Bipolar Resistance Switching Properties in SrTiO3 Thin Films with Symmetric Electrodes Structure

2009 ◽  
Vol 66 ◽  
pp. 119-122 ◽  
Author(s):  
Wei Dong Yu ◽  
Xiao Min Li ◽  
Yi Wen Zhang ◽  
Rui Yang ◽  
Qun Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Current Control ◽  
Differential Conductance ◽  
Bipolar Resistive Switching ◽  
Si Substrates ◽  
Voltage Sweep ◽  
Symmetric Structure ◽  
Current Sweep ◽  
A Current ◽  
Bipolar Resistance Switching

A noncrystalline SrTiO3 (STO) thin film was grown on Pt/Ti/SiO2/Si substrates by pulsed laser deposition. The Pt thin film was deposited on STO film as top electrode, forming a symmetric structure (Pt/STO/Pt) to exclude the influence of the electrical difference in STO-electrode interfaces. It was found that a stable bipolar resistive switching was obtained in this structure. In a current sweep, an obvious S type negative differential conductance (NDC) phenomenon was found in both polarities. And in a voltage sweep, no NDC was observed due to the current control mechanism of S type NDC effect. The possible mechanism of this effect is discussed preliminarily.

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