Design of Physics Laboratory: DC Regulated Power Supply Using IC LM723
Keywords:
Circuit, Diodes, ICLM723, Power supply, TransistorsAbstract
LM723 is a voltage regulator IC that is normally used as a high-precision voltage regulator. LM723 is a monolithic type linear IC available in various packages. In this research, the DC regulated power supply is designed using the IC LM723. This paper presents the design and construction of a dual-regulated ±12V DC power supply that serves two purposes: providing a positive and negative DC output for use in electronic appliances in a Physics laboratory. This power supply gives a precise output voltage using a potentiometer. The circuit diagram was designed with preferred values of components and also used a suitable step-down transformer. In this circuit, a full-wave rectifier to convert AC into DC must be used. The main focus of this paper is to design a dual high-precision power supply used in the physics laboratory.
References
U. Mohammed, M. A. Aminu, S. A. Adeshina, O. Oshiga, G. Koyunlu and S. Thomas, “Design and implementation of regulated DC variable power supply using solar PV with storage (0–15V, 5A),” 2019 15th International Conference on Electronics, Computer and Computation (ICECCO), Abuja, Nigeria, 2019, pp. 1–6, doi: https://doi.org/10.1109/ICECCO48375.2019.9043215
L. Udawat, H. Rodage, C. Raut, M. Waghade, D. Pawar, S. Shekhdar, P. Kadam, “DC variable power supply: Review paper,” International Research Journal of Modernisation in Engineering Technology and Science, vol. 5, no. 11, pp. 310–312. Nov. 2023, Available: https://www.irjmets.com/uploadedfiles/paper//issue_11_november_2023/45932/final/fin_irjmets1699194961.pdf
S. I. Umboh and Marianus, “Design and build a regulated power supply to complete basic electronics practicum facilities,” IJISET -International Journal of Innovative Science, Engineering & Technology, vol. 9, no. 10, Oct. 2022, Available: https://ijiset.com/vol9/v9s10/IJISET_V9_I10_01.pdf
G. Oltean, E. Sipos, “Adjustable from zero voltage regulator using only one 723 integrated circuit,” Acta Technica Napocensis: Electronics and Telecommunications, vol. 46, no. 2, 2005, Available: https://www.researchgate.net/publication/273764473
Microcontrollers Lab, “LM723 regulator pinout, datasheet, examples, applications, working,” Microcontrollers Lab, Feb. 18, 2020. Available: https://microcontrollerslab.com/lm723-variable-voltage-regulator/
Elprocus, “LM723 IC: Pin configuration, circuit diagram, and its applications,” ElProCus: Electronic Projects for Engineering Students, May 21, 2019. Available: https://www.elprocus.com/lm723-voltage-regulator-pin-configuration-circuit-diagram/