Design and analysis the operation of Schmitt trigger circuit in radiation environment
DOI:
https://doi.org/10.15587/2706-5448.2020.220101Keywords:
Schmitt trigger, Op-Amps, threshold levels, radiation environment, electronic circuit, gamma radiation.Abstract
The object of research is the effect of gamma radiation on the characteristics of the operation amplifier, and consequently the behavior of the output voltage waveforms of Schmitt trigger circuit. One of the most problematic is the effect of the circuit elements, reference voltage, input frequency, input DC-voltage and bias voltage effects, on the operation of the proposed Schmitt trigger circuit. In the course of the research, the used Op Amp can be exposed to different types of radiation. As a result of the research it is shown that the threshold levels of Schmitt trigger circuit increased when operates in nuclear radiation environment.
From the experimental work, computer simulation, and results analysis, the conclusions could be deduced, that Operation of operational amplifiers in gamma radiation environment show serious changes on their electrical characteristics. As a result, the Schmitt trigger circuit exposed to gamma radiation range from 3 kGy up to 20 kGy, at 10 Hz, where, its output voltage waveforms are shown to be independent on the gamma-dose. On the other hand, at frequency of 4.0 kHz, a severe effect are noticed, where the lower threshold level (VLTL) increase from –5.35 V up to –3.58 V, while the upper threshold voltage level (VUTL) is slightly increased from 4.21 V to 5 V, as a function of the same gamma doses. The obtained experimental results are shown to be in close agreement with those obtained from programming the Schmitt trigger equations to computer.
In the future, the proposed approaches show that, whenever the Op Amp circuits are used in gamma radiation environment, it preferable to be operate at low frequency levels, where the output voltage waveform of Schmitt trigger circuit are shown to be independent on gamma dose but at high frequency the effect increased as a function of same gamma dose.
References
- ECE 3274 LAB Project 3, “Digital Applications of the Op-Amp” (2004). Available at: https://www.courses.ece.vt.edu/ece3274/Project3.pdf
- Als, A. (1999). Schmitt Trigger.
- Schmitt Trigger using Op-Amp. Available at: https://www.circuitstoday.com/schmitt-trigger-using-op-amp
- Electronics-Lab: Electronic Projects, Embedded News and Online Community. Available at: https://www.electronics-lab.com/
- Abrar, M. M. (2017). Design and Implementation of Schmitt Trigger using Operational Amplifier. International Journal of Engineering Research and Applications, 7 (1), 5–9. doi: http://doi.org/10.9790/9622-0701040509
- Leach, D. P., Malvino, A. P., Goutam, S. (2011). Digital Principles and Applications. New Delhi: Tata McGraw Hill, Special Indian Edition, 250–252.
- Godse, A. P., Godse, U. A. (2016). Analog & Digital Electronics. Pune: Technical Publications, 3, 15–30.
- Vardhan, K. V., Santhoshini, K. M., Musala, S., Pabbisetty, V. N. L. (2019). Schmitt Trigger Circuits using Various Active Devices. International Journal of Engineering and Advanced Technology, 9 (1S5), 143–146. doi: http://doi.org/10.35940/ijeat.a1035.1291s52019
- Schmitt, O. H. (1938). A thermionic trigger. Journal of Scientific Instruments, 15 (1), 24–26. doi: http://doi.org/10.1088/0950-7671/15/1/305
- Kundra, S., Soni, P. (2012). Low Power Schmitt Trigger. Innovative Systems Design and Engineering, 3 (2), 43–51.
- Carpenter, S. R. (1991). Electronic Design. Redwood city: Benjamin Cummings publishing company, Inc, 1024.
- Sophomore Physics Laboratory (2002). Analog Electronic. Ch. 5. Virginio de Oliveira Sannibale.
- Millman, J. (1979). Microelectronic: Digital and Analog Circuits and systems. Mc Graw-Hill, Inc. 881.
- Theodre, F., Bogart, J. R. (1991). Electronic Devices and Circuits. Singapore: Prentice Hall.
- Using Schmitt Trigger for Low Slew-Rate Input (2002). Available at: www.actel.com/documents/SchmittTrigger_AN.pdf
- Bernard, M. F., Dusseau, L., Buchner, S., McMorrow, D., Ecoffet, R., Boch, J. et. al. (2007). Impact of Total Ionizing Dose on the Analog Single Event Transient Sensitivity of a Linear Bipolar Integrated Circuit. IEEE Transactions on Nuclear Science, 54 (6), 2534–2540. doi: http://doi.org/10.1109/tns.2007.910229
- Xiaoming, J. et. al. (2013). Transient Ionizing Radiation effect of Bipolar Operational Amplifiers to Pulsed X-rays. Proceedings of IPAC. Shanghai, 3687–3689.
- Ashry, H. A., Soliman, F. A. S., Swidan, A. M., El-Ghanam, S. M., Abdel Rahman, W. A. (2007). Gamma Radiation Effects on the Electrical Parameters of Some Operational Amplifiers. The Second All African IRPA Regional Radiation Protection Congress. Ismailia.
- Soliman, F. A. S., El-Ghanam, S. M. R., Abd El-Maksood, A. M. (2016). Impact of Outer Space Environment on Electronic Devices and Systems. Lambert Academic Publishing, Omni Scriptum GmbH and Co. KG., 142421.
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