WASET
	@article{(Open Science Index):https://publications.waset.org/pdf/10009006,
	  title     = {Perturbation Based Modelling of Differential Amplifier Circuit},
	  author    = {Rahul Bansal and  Sudipta Majumdar},
	  country	= {},
	  institution	= {},
	  abstract     = {This paper presents the closed form nonlinear
expressions of bipolar junction transistor (BJT) differential amplifier
(DA) using perturbation method. Circuit equations have been derived
using Kirchhoff’s voltage law (KVL) and Kirchhoff’s current law
(KCL). The perturbation method has been applied to state variables
for obtaining the linear and nonlinear terms. The implementation
of the proposed method is simple. The closed form nonlinear
expressions provide better insights of physical systems. The derived
equations can be used for signal processing applications.},
	    journal   = {International Journal of Electronics and Communication Engineering},
	  volume    = {12},
	  number    = {4},
	  year      = {2018},
	  pages     = {335 - 340},
	  ee        = {https://publications.waset.org/pdf/10009006},
	  url   	= {https://publications.waset.org/vol/136},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 136, 2018},
	}