UNI-DIRECTIONAL CURRENT DETECTING CIRCUIT USING SECOND-GENERATION CURRENT CONVEYOR

摘要

PURPOSE: A one-way current detection circuit which utilizes a second generation current conveyer is provided to increase a bandwidth and detection voltage. CONSTITUTION: A one-way current detection circuit comprises a single input signal line(31), a second generation positive polarity current conveyer(32A), a second generation negative polarity current conveyer(32B), and a second generation current conveyer buffer(32C). The second generation positive polarity current conveyer receives positive polarity current of a detection resistor of the single input signal line and provides voltage to an X terminal according to positive polarity conveyer properties. The second generation positive polarity current conveyer provides current flowing in the X terminal to a Z terminal. The second generation negative polarity current conveyer receives negative polarity voltage of the detection resistor of the single input signal line from a Y terminal and provides voltage to the X terminal according to negative polarity conveyer properties. The second generation negative polarity current conveyer provides the current flowing in the X terminal to the Z terminal. The second generation current conveyer buffer receives voltage applied by an output resistor and total current of the second generation positive and negative polarity current conveyers through the Y terminal and provides voltage to the X terminal according to conveyer buffer properties.