| 摘要 |
The four-pole coupler or transfer circuit is used as a positive impedance converter or active transformer and is constructed so that it can easily be integrated. An inverting negative impedance converter (INIC) is connected between one input terminal (E1) and the resistor (R1) forming part of the potential divider to whose tapping the output of an operational amplifier (OV) is connected. The other end of the divider drives the load. The operational amplifier's two inputs receive the input signal from (E1) and the output of the voltage divider. The operational amplifier's second output (a2) is connected to the common input/output rail. |
