• Vinod S Chippalakatti

      Articles written in Sadhana

    • Design and development of high voltage high power operational amplifier using thick film technology

      Krishna Mohan Nutheti Vinod S Chippalakatti Shashikala Prakash

      More Details Abstract Fulltext PDF

      Applications of power operational amplifiers (opamps) are increasing day by day in the industry as they are used in audio amplifiers, Piezo transducer systems and the electron deflection systems. Power operational amplifiers have all the features of a general purpose opamp except the additional power handling capability. The power handling feature can be achieved using an external circuitry around a regular opamp. Normally power opamps can deliver current more than 50 mA and can operate on the supply voltage more than ±25 V. This paper gives the details of one of the power opamps developed to drive the Piezo Actuators for Active Vibration Control (AVC) of aircraft/aerospace structures. The designed power opamp will work on ±200 V supply voltage and can deliver 200 mA current.

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