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Subject: search.filters.subject.multiphase oscillator

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    Item type:Publication,
    Three-Phase Oscillator with Cascade Ability Using Voltage Current Conveyor
    (2024-01-01)
    Buakaew, Seangrawee
    ;
    Narksarp, Wipavan
    ;
    Choeysombat, Kamonthip
    ;
    Kanjanawiwin, Juthamas
    ;
    Atiwongsangthong, Narin
    This paper presents a new circuit configuration employing voltage current conveyors (VCII) in conjunction with a minimal number of passive elements to achieve a voltage mode sinusoidal oscillator with a 3 -phase differential output. The proposed circuit features a straightforward architecture, with all passive elements connected to low-impedance nodes. Consisting solely of identical VCIIs without multiple outputs, the circuit facilitates the cascading of the 3 -phase outputs without requiring supplementary buffering. Simulation results obtained through PSPICE, along with experimental validation using commercial ICs, are provided to substantiate the efficacy of the proposed circuit.
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    Design and Implementation of Multiphase Digital Oscillator
    (2024-01-01)
    Jongsataporn, Thitaphan
    ;
    Yospanya, Poonna
    ;
    Chivapreecha, Sorawat
    This paper presents a design and implementation of the multiphase digital oscillator, which can determine the initial phase of multi-output signals to desired initial phases. The proposed system consists of biquad digital oscillator to oscillate the reference signal, and the new phase shifters which are first order IIR filters that can shift the phase of signals at a specified frequency to give them the desired phases. Design example and simulation results will be shown. Moreover, real-time hardware implementation on STM32 digital signal processor can be demonstrated to confirm the proposed design can work with hardware experimental results.