Integrated direct output current control switching converter using symmetrically-matched self-biased current sensors

2006 ◽  
Author(s):  
Yat-Hei Lam ◽  
S.-C. Koon ◽  
Wing-Hung Ki ◽  
Chi-Ying Tsui
Keyword(s):  
Current Control ◽  
Output Current ◽  
Switching Converter ◽  
Current Sensors

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.

Implementation of Coupled Inductor Based 7-level Inverter with Reduced Switches

2017 ◽  
Vol 8 (3) ◽  
pp. 1294 ◽  
Author(s):  
R. Palanisamy ◽  
K. Vijayakumar ◽  
Aishwarya Bagchi ◽  
Vachika Gupta ◽  
Swapnil Sinha
Keyword(s):  
Output Voltage ◽  
Control Algorithm ◽  
Harmonic Distortion ◽  
Current Control ◽  
Output Current ◽  
Hysteresis Current Control ◽  
Common Mode Voltage ◽  
Voltage Stress ◽  
Dsp Controller ◽  
Switching Devices

<p>This paper proposes implementation of coupled inductor based 7 level inverter with reduced number switches. The inverter which generates the sinusoidal output voltage by the use of coupled inductor with reduced total harmonic distortion. The voltage stress on each switching devices, capacitor balancing and common mode voltage can be minimized. The proposed system which gives better controlled output current and improved output voltage with diminished THD value. The switching devices of the system are controlled by using hysteresis current control algorithm by comparing the carrier signals with constant pulses with enclosed hysteresis band value. The simulation and experimental results of the proposed system outputs are verified using matlab/Simulink and TMS320F3825 dsp controller respectively.</p>

scholarly journals Modeling and Enhanced Error-Free Current Control Strategy for Inverter with Virtual Resistor Damping

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2499 ◽  
Author(s):  
Cheng Nie ◽  
Yue Wang ◽  
Wanjun Lei ◽  
Tian Li ◽  
Shiyuan Yin
Keyword(s):  
Design Method ◽  
Current Control ◽  
Simplified Model ◽  
Output Current ◽  
Control Precision ◽  
Harmonic Components ◽  
Grid Connected Inverter ◽  
Free Current ◽  
Output Filter ◽  
Compensation Design

In microgrid, the grid-connected inverter current with the LCL (inductor-capacitor-inductor) output filter is amplified at certain frequencies. Using virtual resistor damping method can help suppress the amplification. By choosing an appropriate virtual resistor value, the model of the inverter current control loop is simplified as a 2nd-order lowpass filter. Based on such simplified model, this paper proposes a design method of reference current compensation controller, which does not require decomposition of harmonic components. With the reference compensation, the inverter output current control precision is improved obviously. The simulation and experimental results verify the accuracy of the inverter simplified model and effectiveness of the reference compensation design method.

scholarly journals Current Source Based on H-Bridge Inverter with Output LCL Filter

2015 ◽  
Vol 66 (5) ◽  
pp. 287-291 ◽  
Author(s):  
Vojtech Blahnik ◽  
Jakub Talla ◽  
Zdenek Peroutka
Keyword(s):  
Single Phase ◽  
Control Strategies ◽  
Current Source ◽  
Current Control ◽  
Control Technique ◽  
Laboratory Model ◽  
Output Current ◽  
Lcl Filter ◽  
Precise Control ◽  
Single Phase Inverter

Abstract The paper deals with a control of current source with an LCL output filter. The controlled current source is realized as a single-phase inverter and output LCL filter provides low ripple of output current. However, systems incorporating LCL filters require more complex control strategies and there are several interesting approaches to the control of this type of converter. This paper presents the inverter control algorithm, which combines model based control with a direct current control based on resonant controllers and single-phase vector control. The primary goal is to reduce the current ripple and distortion under required limits and provides fast and precise control of output current. The proposed control technique is verified by measurements on the laboratory model.

Single-Inductor Dual-Output DC-DC Converter Design with Exclusive Control

2015 ◽  
Vol 643 ◽  
pp. 47-52
Author(s):  
Mu Rong Li ◽  
Yasunori Kobori ◽  
Feng Zhao ◽  
Qiu Lin Zhu ◽  
Zachary Nosker ◽  
...  
Keyword(s):  
Output Voltage ◽  
Boost Converter ◽  
Control Circuit ◽  
Output Current ◽  
Converter Design ◽  
Simulation Results ◽  
Current Sensors ◽  
Voltage Feedback

This paper proposes a single inductor dual output (SIDO) DC-DC converter with an exclusive control circuit. We propose two kinds of converter: a buck-buck and a boost-boost converter. Multiple voltage outputs are controlled exclusively, using error voltage feedback. This approach requires a few additional components (a switch, a diode and a comparator), but requires no current sensors and does not depend on the value of output voltage or output current. We describe circuit topologies, operation principles and simulation results.

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