Design of High Voltage Integrated Class-F Amplifier for Ultra Sound Transducers
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 10
Abstract
Pulsers are usually adopted in ultra sound applications due to their efficiency. On the other hand, amplifiers would enable apodization profiles with high resolution; beams with low harmonic content and instantaneous changes in transmit energy between pulses. Their use is rather limited when relying on a discrete technology approach, due to high manufacturing costs and space occupation. In view of an increased level of integration, the availability of a BCD technology, capable of watts level driving at high frequency, encourages investigation of linear amplifiers, the topic of this work. Advantages in terms of reliability, space and cost would derive. The proposed amplifier, closed in a feedback loop, uses a high low-voltage transconductor driving a high voltage trans-impedance stage operating in class-B. Device parameters vary with signal amplitude making circuit analysis involved. Techniques to analyze large signal frequency response, distortion and stability are proposed in this paper leading to useful design insights.
Authors and Affiliations
Ganeswar B, Chandrasekhar H
Keywords
Related Articles
- EP ID EP21357
- DOI -
- Views 323
- Downloads 5
Performance Testing of NACA0012 Aerofoil by Providing Dimple Surface
The aim of research paper is to delay the flow separation of an aerofoil by providing dimples on the upper surface of aerofoil at trailing edge. In present work research is done on experimental and numerical analysis of...
Analysis of Single-Input Multiple-Output DC–DC Converter
The aim of this study is to develop a closed loop single-input multiple-output (SIMO) dc–dc converter. The proposed converter can increase the voltage of a low level voltage input power source to a controllable high lev...
Blood Circulatory Massager Positive Machine
In this paper, we have overviewed the Blood Circulation Massager Positive Machine which supports a Body of Maximum “110 kg” using the fundamental principles of “Traditional Indian Medicine” effectively. Accordingly, we...
slugMobile robot Navigation Techniques: A Survey
This paper describes the developments of different basic techniques for mobile robot navigation during the last 10 years. Now a day’s mobile robots are vastly used in many industries for performing different activities....
Mercury contamination in the ambient media in and around the World Heritage Site: Indian Sundarbans
We analyzed the concentrations of dissolved mercury and biologically available mercury in the surface sediment during premonsoon, monsoon and postmonsoon seasons in the year 2015 in 12 selected stations in and around In...