Operational Amplifier's Applications and T-shaped Resistance Net
Duan Shou-min · Journal of Zhengzhou University of Technology · 2000
While designing electronic circuit to measure and amplify,we often want higher voltage amplification factor or change the voltage amplification factor according to certain requirement.Traditional way can not satisfy its requirement.Based on practice the application of T-shaped resistance net in operational amplifier's circuits are analysed.Faced to problems existed in practice,we have a discussion and a aimed test.According to the analysis of testing result,reach the two circuits of having practical value one operational amplifier's circuits feedback network by the T-shaped resistance the others voltage gain be controlled by digital system have been designed. They are easily connected analogue switch with digital circuit and satisfy other requirement.These operational amplifier's circuits have certain worth to use.