High-Voltage Pulse Generations by Power Conditioning of Flux Compression Generators

Kuk, Jeonghyeon; Yim, Dongwoo; Kim, Jingi; Kim, Cheonho

doi:10.1109/ppps.2007.4346015

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…Времяимпульсные преобразователи (ВИП) осуществляют преобразование выходной аналоговой величины первичного преобразователя в длительность, период или частоту импульсных сигналов [1][2][3][4][5][6][7][8][9]. В пассивных ВИП преобразование реализуется с использованием апериодического переходного процесса в цепи первого порядка.…”

Section: Introductionunclassified

Multichannel Generator Time-To-Pulse Converter of the Telemetry Temperature Measurement System

Kulikov,

Syakterev,

Syaktereva

et al. 2023

Intellekt. Sist. Proizv.

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The article considers the multichannel time-to-pulse intermediate converter as a part of telemetric temperature measurement system. The principle of operation is based on the use of aperiodic transient in a first-order circuit formed by resistance temperature device and capacitor. Switching of resistance temperature device in the process of temperature measurements is carried out by MIS keys (metal-insulator-semiconductor) according to the signal from the output of the circuit, and the allocation of the output information interval is carried out by a voltage comparator. The article illustrates an electric circuit of a time-to-pulse converter. Based on the equivalent scheme, the main metrological characteristics were obtained by calculation, namely, the dependences of the sensitivity of the output value of the converter to changes in the parameters of the circuit elements expressed in terms of temperature. The scheme of a time-to-pulse converter with an optical output, designed for use with semiconductor resistance temperature devices was experimentally investigated. Variants of multichannel converters for 7 and 15 measuring channels are implemented. Digital elements of the MIS-type (metal-insulator-semiconductor) are used. Information about the temperature at the output of the converters was encoded in the duration of 128 periods of pulse signals, which ensured reliable of information intervals in the receiving part of the equipment. A laboratory tester with an optoelectronic input was used as a receiver of optical pulses. The duration of the information intervals was measured by an industrial measuring device with a resolution of 10 billiseconds. The experimental and rated characteristics of the conversion and the dependence of the conversion error on the supply voltage, operating temperature and resistance of primary thermal converters are presented. It is established that in terms of the main operational parameters, a generator-type time-to-pulse converter is not inferior to a circuit with external excitation. At the same time, the generator converter is less sensitive to the errors of the comparator in terms of electrical bias and speed. The use of a multichannel generator time-to-pulse converter is advisable in telemetric temperature measurement systems when transmitting information in a communication channel during the duration of the period of information, in particular, optical pulses.

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Section: Introductionunclassified

Multichannel Generator Time-To-Pulse Converter of the Telemetry Temperature Measurement System

Kulikov,

Syakterev,

Syaktereva

et al. 2023

Intellekt. Sist. Proizv.

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“…В первом случае в тракте преобразования отсутствуют усилительные элементы, например операционные усилители (ОУ), во втором случае, наоборот, применяются ОУ, которые осуществляют не только усиление сигнала, но и выполняют функции его преобразования, например интегрирование и др. [1][2][3][4][5].…”

Section: Introductionunclassified

Application of Passive Time-to-Pulse Converter in Temperature Measurement Systems of Moving Objects

Kulikov,

Syakterev,

Syaktereva

2022

Intellekt. Sist. Proizv.

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A variant of the implementation of a time-to-pulse converter as part of a human temperature measurement system is considered, in which a first-order circuit forming an information time interval is formed by a resistance temperature device and a capacitor. Initialization and registration of the time for the transient phenomena are carried out by MIS transistor and an integral comparator. Assessment of the differential sensibility of the converter depending on the time constant of the forming circuit for medium-speed keys is provided. The scheme of a multichannel converter is presented, with sequential and cyclic resistance of several thermal converters into the duration of the impulse response. At the same time, to decrypt the number of the measuring channel, the conversion cycles are separated by pauses. The function of converting temperature into the duration of the time interval is derived for a nickel resistance temperature device based on an equivalent electrical circuit of a time-to-pulse converter. Analytic forms are obtained to assess the effect of inaccuracy of circuit elements and destabilizing factors on the temperature measurement error. The conditions for its reduction have been determined. The converter connection is investigated in the Micro-Cap circuit simulation environment. The discrepancies between the experimental and calculated values of the conversion function did not exceed 0.2%. The temperature instability of the output information intervals of the time-to-pulse converter was no more than 0.1% in the operating temperature range 0 ...50°C and is due to the voltage temperature drift of the comparator bias voltage. The use of a passive time-to-pulse converter is advisable in telemetry systems for measuring temperature or other physical quantities with primary resistance, capacitance or inductance converters forming a first-order circuit in the conversion path. The presented analytical expressions can be used to estimate the additional measurement error.

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“…The Pulse Forming System (PFS) is an electrical system that adjusts pulse parameters to the load requirements by accumulating the energy supplied from the previous stage of the cascade and discharging the stored energy in the form of a voltage or current pulse with a much greater instantaneous power and shorter duration time than the previous generation stage guarantees. In the typical solutions, the relative increase in the instantaneous power and the shortening of the pulse duration at the output in relation to the input pulse parameters exceeds 1000% [21][22][23]. Among PFS, depending on the used forming technique, two dominant types can be distinguished [24]:…”

Section: Introductionmentioning

confidence: 99%

“…So far the most effective method of rapid current interruption in PFS is the use of forming fuses (FF) (or fuse-opening switches) [21][22][23][24][25][26][27], using the electro-explosion of the conductor phenomenon [43]. In typical FF solutions, the times of current limiting to zero reach hundreds of ns [24,31,44], depending on the limiting current value and the forming coil inductance.…”

Section: Introductionmentioning

confidence: 99%

Compact and Integrated High-Power Pulse Generation and Forming System

et al. 2021

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This paper presents comprehensive analytical, numerical and experimental research of the compact and integrated high-power pulse generation and forming system based on the flux compression generator and the electro-explosive forming fuse. The paper includes the analysis of the presented solution, starting from the individual components studies, i.e., the separate flux compression generator tests in field conditions and the forming fuse laboratory test, through the formulation of the extended quasi-empirical components models aimed at enabling their optimal parameters determination at the early design stage and ending with the description of the integrated system studies in field conditions. Based on detailed research, it was possible to achieve very high parameters of the generated pulses, i.e., overvoltages of up to 340 kV with the available source power reaching 25 GW. A very high convergence of the simulation and the results of experimental research has been obtained. The parameters of the presented system have been compared with other literature solutions and the selected topology of the high power pulse generation and forming system has been distinguished against other available ones, e.g., based on Marx generators and forming lines.

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High-Voltage Pulse Generations by Power Conditioning of Flux Compression Generators

Cited by 4 publications

References 1 publication

Multichannel Generator Time-To-Pulse Converter of the Telemetry Temperature Measurement System

Multichannel Generator Time-To-Pulse Converter of the Telemetry Temperature Measurement System

Application of Passive Time-to-Pulse Converter in Temperature Measurement Systems of Moving Objects

Compact and Integrated High-Power Pulse Generation and Forming System

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