Design of High Frequency Class E Inverter With Adjustable Output Voltage

The system represented during this paper uses 3 matrix converters and a high frequency electrical device to attain isolation and voltage transformation from primary to secondary aspect. Two matrix converters manufacture high frequency voltage across a transformer, with open all over primary. a 3rd matrix device converts the high frequency cut voltage to line frequency. The non-idealities like outflow inductance of the electrical device have a big impact on the device performance. This paper studies the impact of outflow inductance on the regulation of the output voltage of the device. The simulation study has been carried out in SIMULINK and also the results are presented.

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An Innovative Technology for Measuring The Dynamic Characteristics of Pressure Sensors

Materials Science Forum ◽

10.4028/www.scientific.net/msf.505-507.1057 ◽

2006 ◽

Vol 505-507 ◽

pp. 1057-1062 ◽

Cited By ~ 1

Author(s):

Ho Chang ◽

Mu Jung Kao ◽

Tsing Tshih Tsung ◽

J.L. Wu

Keyword(s):

Dynamic Characteristics ◽

Spectrum Analysis ◽

Pressure Sensor ◽

High Frequency ◽

Pressure Wave ◽

Hydraulic System ◽

Output Voltage ◽

Pressure Sensors ◽

Innovative Technology ◽

Wave Generator

This study developed a square-like pressure wave generator as an excitation source to test dynamic characteristics of pressure sensors. The developed generator can generate a square-like pressure wave of as high as 2 kHz and can achieve high-frequency switching by utilizing the differential principle through a series of mechanical rotations between the revolving spindle and revolving ring. The square-like pressure wave generated is input into the hydraulic system while the output voltage signals given by the pressure sensor can be analyzed by spectrum analysis to obtain dynamic characteristics of the pressure sensor

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Experimental Study on Differentiating between Natural Honey and Honey Glucose Syrup by Using Hall Effect Sensor

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.775.231 ◽

2018 ◽

Vol 775 ◽

pp. 231-237

Author(s):

Witsarut Sriratana ◽

Siwakon Sokjabok ◽

Lerdlekha Sriratana

Keyword(s):

Electromagnetic Field ◽

Hall Effect ◽

High Frequency ◽

Output Voltage ◽

Electrical Conductance ◽

Magnetic Core ◽

Hall Effect Sensor ◽

Sugar Substitute ◽

Glucose Syrup ◽

Natural Honey

This study presents the application of Hall Effect sensor for differentiating the combination of liquids based on electrical conductance. Electromagnetic field was generated from wire (AWG 31) bound on high frequency magnetic core namely Toroidal iron power (T131-26) or C-shape Toroidal core. In this study, the electrochemical cell was fixed at 0.09375 cm-1 and there were 10 samples of several liquid types for testing. Hall Effect sensor was designed to place with high frequency magnetic cores bound by 310-turns wire. From experiment using electromagnetic field generated by C-shape Toroidal core, it can be observed that the samples of natural honey from Germany (J) and sugar substitute for diabetics (I) could be distinguished by considering output voltage of Hall Effect sensor (VH) and electrical conductance. The output voltage and the electrical conductance from measurement of natural honey (J) were 3.037 V and 0.941 mS.T, respectively while those from measurement of sugar substitute (I) were 3.030 V and 0.938 mS.T, respectively. Moreover, it can be noted that this methodology could be applied for measuring electrical conductance of several liquid types due to the relationships of output voltage of Hall Effect sensor and electrical conductance of liquid. However, only C-shape Toroidal core was used in this study due to the appropriate generation of electromagnetic field for differentiating both sample liquid types with 1.83% of error for natural honey and 1.51% of error for sugar substitute from 195 times of repetitive measurement.

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Bidirectional High-Frequency Inductive Power Transfer Systems Based on Differential Load-Independent Class E Converters

10.1109/iecon48115.2021.9589373 ◽

2021 ◽

Author(s):

Yifan Jiang ◽

Heyuan Li ◽

Minfan Fu

Keyword(s):

High Frequency ◽

Power Transfer ◽

Inductive Power Transfer ◽

Inductive Power ◽

Class E

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Modeling and stability study of a high frequency and high efficiency photovoltaic DC boost converter

Journal of Computational Methods in Sciences and Engineering ◽

10.3233/jcm-194056 ◽

2020 ◽

Vol 20 (3) ◽

pp. 817-826

Author(s):

Shengshan Li ◽

Ming Li ◽

Liangliang Liu

Keyword(s):

Power Generation ◽

High Frequency ◽

Output Voltage ◽

High Efficiency ◽

Boost Converter ◽

Stability Study ◽

Power Circuit ◽

Point Tracking ◽

Photovoltaic Power ◽

Power Generation Systems

Many practical photovoltaic power generation systems with higher output voltage levels rely on photovoltaic DC boost converters with high frequency and high efficiency, which performance directly affect the conversion efficiency of photovoltaic power generation systems. This paper investigates a high-frequency and high-efficiency photovoltaic DC boost converter, which adopts the Boost full-bridge isolation circuit topology with active clamps. The conductance increment method is used as the maximum power point tracking algorithm. The small signal models of its power circuit and control circuit are established to obtain the system model and analyze its stability. The simulation results indicate that the ripple coefficient of output current is less than 3%, and the ripple coefficient of output voltage is less than 5%, which meets the stability requirements.

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