International Research Journal of Engineering and Technology (IRJET) Volume: 10 Issue: 06 | Jun 2023
www.irjet.net
e-ISSN: 2395-0056 p-ISSN: 2395-0072
Low power consumptions high speed Class B amplifier Arvind Tiwari1 , Krishna Kumar Shukla2, Arunendra Nath Tripathi3 1 , 2 Department of Physics, Maharishi University of Information Technology,Lucknow U.P. India 3, Department of Physics and Electronics, Dr. Ram Manohar Lohiya Awadh University Ayodhya U.P. India
------------------------------------------------------------------------***----------------------------------------------------------------------Abstract- In this paper we present new combinations to design class B amplifiers which consume extremally low power
consumptions in the range of nanowatt, temperature stability of this combinations is very high from -1000c to 2000c. These combinations reported that PAE more than 72%. Volage gain 36.6dB and bandwidth range in MHz. Proposed pair design with the help of combinations of Darlington pair and Szikli pair. Darlington pair increases the voltage gain and Szikli provided bandwidth, therefor this pair reported high voltage gain and larger bandwidth.
Key words- Darlington pair, Szikli pair, low power consumptions, temperature stability, bandwidth Introduction- Long-term use of battery-operated devices is an important challenge in present times. To meet this challenge, simply increasing the battery capacity is not enough as it will increase the weight and size of the portable device. Therefore, this challenge cannot be controlled by increasing the capacity of the battery, but if somehow the power consumption is controlled, then this challenge can be controlled to a great extent, but along with this control, this thing Care should be taken not to affect the basic properties of the device i.e., voltage gain and bandwidth.
The determination of the efficiency of the transmitter used in the communication system depends on the fact that how much is the overall efficiency of the power amplifier. The main focus of any power amplifier is how well it can convert dc input power to ac input power to rf/micro wave output power without any harmonic distortion. To achieve this goal, the classical class b amplifier has been built. The most important feature of class b is that its efficiency is up to 78%, it also has a drawback, its conducting angle is 180 degree or semi-circular. Hence the class ab of the complete circle was constructed. In which two transistors have been used, in the first half cycle the first transistor is on, in the second cycle the second transistor is on, thus the conducting angle is up to 360. In fact, there are many general paper and books available for class b amplifier study. These amplifiers designed using either complimentary compound pair or other method, basically two methods widely used to design class B amplifier one is Darlington and other is Szikli. This paper divided into four parts, first is introduction second reference and expletory circuit third simulation and result and fourth is discussions.
Part II reference and expletory circuitsIn this part of the article, we have presented the proposed circuit along with the reference circuit, the triplet transistor configurations are used for the first time in the construction of the reference class b amplifier and 25-volt DC voltage used with Diode and resistance for circuit stability. In the constructions of the proposed circuit, we have used Darlington and Szikli pair with one MOS transistor to design class B amplifier. One more thing we used triplet diode with resistance for circuit stability of the circuit.
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