The design and analysis of the multistage common emitter (CE) amplifier for improved voltage gain over the single stage CE amplifier is presented in this paper. The design procedure started with the design of a single stage CE amplifier. The design specifications for the CE amplifier were specified. The design of the multistage CE amplifier was done using the designed single stage CE amplifier as the basic configuration. The designed single stage and multistage CE amplifiers were simulated in the linear technology simulation program with integrated circuit emphasis (LT SPICE). The results obtained show that using analytical method a voltage gain of 45 dB was obtained for the single stage and 54 dB was obtained for the multistage respectively, the LT SPICE simulation software presented a result of 44 dB for the single stage and 54 dB for the multistage. The proposed amplifier may find suitable applications in devices operating in the low frequency such as audio signal applications. Furthermore, judging from these results coupling of more stages of the transistor amplifier to obtain greater voltage, current and power gains is recommended.
P. M. Huang, Electronics Principles, 4th ed. New Delhi: Prentice Hall of India Private Limited, 2006.ch. 4.
H. Edward and H. John, Electrical/Electronic Technology Junction Transistor Amplifiers. 10th ed. New Delhi: Prentice Hall, 2005.ch. 6.
A. Pittman, “The Tube Amp Book”. 4th ed. San Francisco, New Delhi: Backbeat. S. Chand Publishers, 2003.pp. 123-125.
P. Malvino, Electronic Principles. 3rd ed. New Delhi: Prentice Hall of India Private Limited., 2008. pp. 135-137.
L. F. Floyd, Electronic Devices. 4th ed. New Delhi: Prentice Hall, India private limited, 2006. Ch. 6.
E. J. Angelo, Electronics: BJTs, FETs and Micro circuits. 2nd ed. New York, St Louis, San Francisco, London, Toronto, Mexico, Panama: Mc Graw-Hill book Company. 2000. Ch. 3.
A. B. Agawai, Electronic Devices and Circuits. 5th ed. India: Oxford University Press, 2007. pp. 177-179.
J. G. Gonzalez, Microwave Transistor Amplifiers-Analysis and Design. 2nd ed. New Jersey: Prentice Hall, 2003. Ch. 6.
C. J. Vanwagoner, Structured Electronic Design: Negative-Feedback Amplifiers. 4th ed. Boston: Kluwer Academic Publishers, 2014. Ch. 4.
M. N. Ibrahim, H. C. Soh, H. I. Hamzah and A. A. Othman, “Simulation of Single Stage BJT amplifier using LT SPICE”. International research journal of design and communication system. pp 27-33, Vol 55, 2016.
N. K. Kaphungkui “Two Stage Cascade BJT Amplifier for Very Small Signal Amplification”. International Research Journal of Engineering and Technology. pp223- 224, Vol 41, 2012.
K. O. Leung and L. F. Mok. “Analysis of Multistage Amplifier Frequency Compensation”. International research journal of emerging technologies in computation and applied sciences, pp1418-1421, vol. 34, 2003.
A. P. Scwong and S. B. Murat. “A Multistage Common Emitter Circuit Simulation using WINSPICE”. International Journal of Electronic and Information Engineering, pp.141- 142, Vol 4, 2001.
R. L. Boylestad, Electronic Devices and Circuit Theory. 3rd ed. Asia:.Pearson Education,2010.Ch. 5.
D. C. Ferris, Elements of Electronic design. 5th ed. New Delhi: Prentice Hall of India Private Limited. 2015. Ch. 7
V. D. Toro, Electrical Engineering fundamentals. 2nd Ed.. New Delhi: Prentice Hall of India Private Limited, 2006.Ch. 5.
C. H. Christos, Integrated Electronics: Analog and Digital Circuits and Systems, International Student ed. New Jersey: Prentice Hall, Tata McGraw Hill. 2008.
This work is licensed under a Creative Commons Attribution 4.0 International License.
The names and email addresses entered in this journal site will be used exclusively for the stated purposes of this journal and will not be made available for any other purpose or to any other party.
Submission of the manuscript represents that the manuscript has not been published previously and is not considered for publication elsewhere.