Synchronous Rectifier in High-Frequency 24V/15A MagAmp Power Converter

Yaskiv, Volodymyr; Martseniuk, Anatoliy; Yaskiv, Anna; Yurchenko, O.M.

doi:10.1109/ieps51250.2020.9263190

Cited by 3 publications

(5 citation statements)

References 6 publications

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“…1. It consists of an unregulated highfrequency transistor voltage inverter 1, power transformer TV, push-pull output rectifier VD3, VD4, saturation cores TS1, TS2, output filter 2, load, control circuit 3, demagnetizing diodes VD1, VD2 [8].…”

Section: Methods Of Design Of Magamp Power Convertersmentioning

confidence: 99%

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Unregulated transistor inverter for high-frequency magamp power converters

Yaskiv,

Yurchenko

2020

Comput. probl. electr. eng.

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Section: Methods Of Design Of Magamp Power Convertersmentioning

confidence: 99%

“…1. Functional scheme of MagAmp power converter [6] The operation principle of magnetic amplifiers is described in the literature sources [3][4][5][6][7][8]. High efficiency and reliable operation of such a converter depends largely on the implementation of a high-frequency unregulated transistor inverter.…”

Section: Methods Of Design Of Magamp Power Convertersmentioning

confidence: 99%

Unregulated transistor inverter for high-frequency magamp power converters

Yaskiv,

Yurchenko

2020

Comput. probl. electr. eng.

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“…1. Here, the permeability of the core is very low and the inductance of the MagAmp coil has only a negligible value, which allows a large current flowing in the circuit [18].…”

Section: Principles Of Magamp Operationmentioning

confidence: 99%

“…However, MagAmp cannot interrupt the current once started. Hence, MagAmps are used in pulse circuits where they are assisted by diode rectifiers, which cut off the current as the applied voltage changes polarity [18].…”

Section: Fig 1 Magamp Switching Trajectory In B-h Plain [12]mentioning

confidence: 99%

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Development of the Power Supply and Control System for the Hemodialysis Machine

Yaskiv,

Yaskiv

2023

IAPGOS

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The article describes new approaches to creating an autonomous compact system with automatic control for hemodialysis. It is proposed to organize a closed circuit for cleaning the dialysis solution using an electrolytic regenerator as a function of the concentration of urea in it. The functional diagram of the created system is presented and described. To power the regenerator, ensure thermal stabilization of the solution, and power auxiliary electronic and electrical equipment, a multi-channel power supply and control system for the hemodialysis machine based on high-frequency magnetic amplifiers has been developed and researched. The advantages of power switches based on high-frequency magnetic amplifiers in comparison with transistor switches, including in the construction of controlled power sources, are given. The principle of operation of the voltage regulator on high-frequency magnetic amplifiers is described. Theoretical and experimental oscillograms are given. Photographs of the experimental unit as well as an industrial sample of the multi-channel power supply and control system of the hemodialysis machine are provided. Their main technical characteristics are given. Conclusions to the conducted work are formulated. Carrying out the regeneration of the dialysis solution significantly reduces its costs – 2 liters of solution, which is suitable for use for 6 months, is enough for the operation of the device. Existing hemodialysis machines are a stationary open system using a single-use dialysis solution at a rate of up to 35 l/h, which ties the machine to stationary clinical conditions. Introducing feedback on the concentration of urea in the dialysis solution allows you to automate the blood purification procedure, as well as automatically complete hemodialysis at the necessary time, and also eliminates the dependence of the device on the conditions of the hospital.

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Multi-channel switching magamp power converter for radio recieving devices

Yaskiv,

Yaskiv

2023

Comput. probl. electr. eng.

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Development of high-quality energy supply of radio receiving devices is an urgent task. The article discusses the methods of designing high-frequency multi-channel power converters based on high-frequency magnetic amplifiers, the magnetic cores of which are made of an amorphous alloy with a rectangular hysteresis loop. Their significant advantages when powering radio receiving devices are the high quality of the output voltages and the low level of electromagnetic interference, both radiated and conductive. At the same time, they have a higher level of dynamic characteristics, reliability and efficiency while reducing their topological complexity and cost. In addition, it allows the implementation of multi-channel power converters with equivalent and independent output channels in a wide range of output powers. The paper presents the implementation of such a converter for powering radio receiving devices.

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Synchronous Rectifier in High-Frequency 24V/15A MagAmp Power Converter

Cited by 3 publications

References 6 publications

Unregulated transistor inverter for high-frequency magamp power converters

Unregulated transistor inverter for high-frequency magamp power converters

Development of the Power Supply and Control System for the Hemodialysis Machine

Multi-channel switching magamp power converter for radio recieving devices

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