Patent ID: 7049888
Filing Date: 2006-05-23
Classification: H03F,H03H

Abstract:
1. An active inductance circuit in which voltage and current characteristics at an output terminal represent characteristics of the circuit including inductance, comprising: a first transistor comprising a control terminal, a first signal terminal, and a second signal terminal; a second transistor different in conductivity type from the first transistor, comprising a control terminal, a first signal terminal, and a second signal terminal; a capacitor; and a current source, wherein the first signal terminal of the first transistor is connected to the output terminal; the control terminal of the second transistor is connected to the first signal terminal of the first transistor; the control terminal of the first transistor is connected to the second signal terminal of the second transistor; and the second signal terminal of the second transistor is connected to a terminal of the current source and a terminal of the capacitor.