Kumngern, Montree

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Kumngern, Montree
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KUMNGERN, Montree
Kumngern, M.
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montree.ku@kmitl.ac.th

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    Item type:Publication,
    High frequency and high precision CMOS full-wave rectifier
    (2006-03-01)
    Kumngern, M.
    ;
    Dejhan, K.
    This paper describes a high frequency and high precision full-wave rectifier using a fully differential input and output operational transconductance amplifier (FDIO-OTA), which is very suitable for CMOS technology implementation. The system comprises a voltage to current converter, precision full-wave rectifier and a current-to-voltage converter. An input voltage signal is converted into two symmetrical current signals by using a FDIO-OTA. Two current signals will be rectified by using MOS diodes and convert into output voltage by using grounded MOS resistor. The circuit exhibits a very precise rectifier and very high operating frequency. The simulation results demonstrate the performance of the proposed circuit.