AMPLIFIER

摘要

Two series-connected power sources supply operating power to a voltage amplifying circuit. An input resistor is connected between a noninverting input terminal of the voltage amplifier and ground terminal. A power amplifying stage has a high input inpedance input buffer, an input terminal of which is connected to an output terminal of the voltage amplifying stage. Two further series connected power sources supply operating power to the power amplifying stage. A voltage divider has end terminals connected respectively to an output of the power amplifying stage and the second ground terminal. A high input impedance buffer stage has an input terminal connected to an intermediate point of the voltage divider.