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Communication module for power supplies controlling
Zachar, Jiří ; Šmíd, Petr (referee) ; Dřínovský, Jiří (advisor)
The aim of this work is to design a communication module for laboratory source Manson. This power supply communicates only through a serial RS-232 link. Modern computers usually use for the connection with other peripherals mainly USB. Designed communication module contains converter between the RS-232 and USB. Power supply is used in the automated measurement setup, which is controlled from the Virtual Engineering Environment from the Agilent Technologies. Direct commands for laboratory source Manson are not compatible with the SCPI (Standard Commands for Programmable Instruments) standard commands. So, the communication module converts commands from the SCPI format to Manson supply instructions. The communication with the Manson supply will be obvious for students by using new communication module.
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Impedance Transformers with Impedance Ratio 1/50 Ohms for Wide Frequency Range
Zachar, Jiří ; Šebesta, Jiří (referee) ; Dřínovský, Jiří (advisor)
One of the aims of this bachelor’s project was to explore possibilities of the design of impedance transformers for a very wide frequency bandwidth (10 Hz – 100 MHz) with the impedance ratio 1/50 . It is not possible to cover this wide frequency band by one transformer, so the design was split into the design of two impedance transformers. The first transformer was realized on the ferrite coil RIK20. The second transformer was realized by with the components T16-1 and TT25-1-kk+ produced by Mini-CircuitsŽ company, and transform impedance directly in a high frequency range. The performance of realized transformers was approved by measuring transformed impedance on their outputs. The frequency band of transformers was determined from these data. Their insertion loss was also measured. The last part of this work was focused on measuring the insertion loss of EMI filters. The main task was to compare the impedance systems 1 /100 and 0,1 /100 and vice versa. The insertion loss was measured for several chosen EMI filters. The insertion loss of all filters reached approximately the same values for both impedance systems.
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Communication module for power supplies controlling
Zachar, Jiří ; Šmíd, Petr (referee) ; Dřínovský, Jiří (advisor)
The aim of this work is to design a communication module for laboratory source Manson. This power supply communicates only through a serial RS-232 link. Modern computers usually use for the connection with other peripherals mainly USB. Designed communication module contains converter between the RS-232 and USB. Power supply is used in the automated measurement setup, which is controlled from the Virtual Engineering Environment from the Agilent Technologies. Direct commands for laboratory source Manson are not compatible with the SCPI (Standard Commands for Programmable Instruments) standard commands. So, the communication module converts commands from the SCPI format to Manson supply instructions. The communication with the Manson supply will be obvious for students by using new communication module.
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|
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Impedance Transformers with Impedance Ratio 1/50 Ohms for Wide Frequency Range
Zachar, Jiří ; Šebesta, Jiří (referee) ; Dřínovský, Jiří (advisor)
One of the aims of this bachelor’s project was to explore possibilities of the design of impedance transformers for a very wide frequency bandwidth (10 Hz – 100 MHz) with the impedance ratio 1/50 . It is not possible to cover this wide frequency band by one transformer, so the design was split into the design of two impedance transformers. The first transformer was realized on the ferrite coil RIK20. The second transformer was realized by with the components T16-1 and TT25-1-kk+ produced by Mini-CircuitsŽ company, and transform impedance directly in a high frequency range. The performance of realized transformers was approved by measuring transformed impedance on their outputs. The frequency band of transformers was determined from these data. Their insertion loss was also measured. The last part of this work was focused on measuring the insertion loss of EMI filters. The main task was to compare the impedance systems 1 /100 and 0,1 /100 and vice versa. The insertion loss was measured for several chosen EMI filters. The insertion loss of all filters reached approximately the same values for both impedance systems.
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