Results 21 to 30 of about 4,746 (161)
Extending locked range of digital phase-locked loop by prediction estimation of states
Tongxin xuebao, 2008 A method to extend locked range of the positive zero crossing detection digital phase-locked loop（ZC-DPLL） was proposed.The nonlinear dynamical model of phase error of a non-controlled DPLL is firstly built,linearation predic-tion estimation of phase ...
ZHAO Yi-bo1 +3 more
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Experimental research of transient processes in firmware digital phase-locked loop
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2016 This article considers the experimental research of transient processes that occur in digital phase-locked loops (DPLL) after closing the feedback loop. Firmware implementation of DPLL device was made for this purpose.
А. П. Бондарев +1 more
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Sub-parts Control Parameter Fitting Method of VSC Based on RTDS
发电技术, 2020 Voltage source converter (VSC) is the main power electronic components of wind power, photovoltaic and converter stations. It's control mode and parameter setting have important influence on system operation.
Peng XU +3 more
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Study on Digital Phase-Locked Loop for Grid-connected Power Electronic Device
Kongzhi Yu Xinxi Jishu, 2012 As the grid-connected power electronic device has been widely applied, digital phase-locked loop (PLL) is becoming a key technology of such devices. An advanced digital SRF-PLL is applied based on the synchronous rotating reference frame, and the unified
WANG Baogui +3 more
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Semidigital PLL Design for Low-Cost Low-Power Clock Generation
Journal of Electrical and Computer Engineering, 2011 This paper describes recent semidigital architectures of the phase-locked loop (PLL) systems for low-cost low-power clock generation. With the absence of the time-to-digital converter (TDC), the semi-digital PLL (SDPLL) enables low-power linear phase ...
Ni Xu, Woogeun Rhee, Zhihua Wang
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Analog-digital systems of phase-locked loop
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019 Considered the system digital phase-locked loop with a frequency synthesizer (the reference signal generator), implemented by analog circuits phase-locked.
S. A. Gankevich
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Extended Lock Range Zero-Crossing Digital Phase-Locked Loop with Time Delay
EURASIP Journal on Wireless Communications and Networking, 2005 The input frequency limit of the conventional zero-crossing digital phase-locked loop (ZCDPLL) is due to the operating time of the digital circuitry inside the feedback loop.
Nasir Qassim
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IET Optoelectronics, 2023 The technical feasibility of developing an Internet of Things multi‐user communication system is evaluated based on a central digital multiband carrierless amplitude and phase transmitter, which broadcasts data on multiple channels for a number of low ...
Luís Rodrigues +3 more
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An Improved Single Phase-locked Loop Based on Synchronous Reference Frame
Kongzhi Yu Xinxi Jishu, 2019 Accurate tracking of phase angle, frequency and amplitude of the utility voltage is essential to ensure correct operation of grid connected inverters. The commonly used single phase-locked loop(SPLL) has poor dynamic characteristics due to the problem of
TANG Jianyu +4 more
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Phase noise and jitter modeling for fractional-N PLLs [PDF]
Advances in Radio Science, 2007 We present an analytical phase noise model for fractional-N phase-locked loops (PLL) with emphasis on integrated RF synthesizers in the GHz range. The noise of the crystal reference, the voltage-controlled oscillator (VCO), the loop filter, the charge ...
S. A. Osmany +3 more
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