A high precision phase control unit for DDS-based PLLs for 2.4-GHz ISM band applications

Talarico, Claudio; D'Amato, G.; Coviello, Giuseppe; Avitabile, G.

doi:10.1109/mwscas.2015.7282033

Cited by 15 publications

(7 citation statements)

References 14 publications

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“…In the photovoltaic grid-connected inverter control structure, a phase-locked loop (PLL) is used. Several scientific studies have shown further viable options for the PLL approach [34,35]. The authors of [34] introduce the design and implementation of a new programmable phase control unit (PCU) topology for active phased array antennas; the array is based on a hybrid direct digital synthesizer (DDS) phase-lock-loop (PLL) approach.…”

Section: Control Strategy Of Three-phase Photovoltaic Grid-connected mentioning

confidence: 99%

“…Several scientific studies have shown further viable options for the PLL approach [34,35]. The authors of [34] introduce the design and implementation of a new programmable phase control unit (PCU) topology for active phased array antennas; the array is based on a hybrid direct digital synthesizer (DDS) phase-lock-loop (PLL) approach. The authors of [35] introduce the design and implementation of a high performance, reconfigurable, four channel beam steering unit (BSU) for active phased-array antennas based on field programmable gate array (FPGA) synthesized delay-lines and PLLs.…”

Section: Control Strategy Of Three-phase Photovoltaic Grid-connected mentioning

confidence: 99%

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Linear Active Disturbance Rejection Control of Grid-Connected Photovoltaic Inverter Based on Deviation Control Principle

Zhou

Wang

2020

Energies

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Photovoltaic grid-connected power generation systems are easily affected by external factors, and their anti-interference performance is poor. For example, changes in illumination and fluctuations in the power grid affect the operation ability of the system. Linear active disturbance rejection control (LADRC) can extract the “summation disturbance” information from the system and eliminate the disturbance at the fastest speed by controlling the signal before it affects the final output of the system. In this paper, an improved linear ADRC based on the principle of deviation control is proposed, and the voltage outer loop is controlled by an improved LADRC. This improved LADRC takes the deviation between each state variable and its observed value as the regulation basis for each state variable of the linear extended state observer (LESO). Based on the analysis of the bode diagram in the frequency domain, it can be concluded that, compared with the unimproved LADRC, the new LADRC has better disturbance rejection performance. The simulation results show that the control performance of the new, improved LADRC is better than that of the unimproved LADRC under different operating conditions, and it has better stability performance and anti-disturbance performance.

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Section: Control Strategy Of Three-phase Photovoltaic Grid-connected mentioning

confidence: 99%

Section: Control Strategy Of Three-phase Photovoltaic Grid-connected mentioning

confidence: 99%

Linear Active Disturbance Rejection Control of Grid-Connected Photovoltaic Inverter Based on Deviation Control Principle

Zhou

Wang

2020

Energies

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“…The core of the control circuit is a phase modulator [13], which is implemented using a sawtooth carrier (leading edge) signal, a comparator and two monostable multivibrators. The control voltage, v c , and the carrier are compared, generating a PWM signal that triggers the drive signals of phases A and B of the converter.…”

Section: Validation Of the Converter Dynamic Modelmentioning

confidence: 99%

Two-Phase Resonant Converter to Drive High-Power LED Lamps

et al. 2019

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This paper presents the design and modeling of a two-phase resonant converter that drives a LED lamp with a high-frequency pulsed current free of instabilities and flicker effect, fulfilling the recommendations of the IEEE PAR 1789-2015, so that it enables visible light-based communication at a 10 kB/s bit rate. The dynamic study of the converter takes into consideration the effect of the reflected impedance of the output filter on the AC side. In order to evaluate the dynamic response of the converter, a Spice model is defined. A 120 W prototype intended for street lighting applications has been built to validate the analysis and modeling.Electronics 2020, 9, 53 2 of 13 obtained from the envelope model of the converter. The experimental validation of the model is presented in Section 4, finalizing with the discussion of the results. Two-Phase Series-Parallel Resonant ConverterThe two-phase series-parallel (LC s C p ) resonant converter [8], shown in Figure 1, consists of the resonant inverter stage loaded by a center tap rectifier [9].Electronics 2019, 8, x FOR PEER REVIEW 2 of 13 model is obtained from the envelope model of the converter. The experimental validation of the model is presented in Section 4, finalizing with the discussion of the results. Two-phase Series-parallel Resonant ConverterThe two-phase series-parallel (LCsCp) resonant converter [8], shown in Figure 1, consists of the resonant inverter stage loaded by a center tap rectifier [9].

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“…Given that a beam synthesis and steering solution based on the evidence that the output phase of a PLL can be changed through a convenient delay of its reference signal has already been proposed in literature [17], in this work we focus on illustrating how the proposed BSU architecture can operate as a modulator-less polar transmitter. If one of the PLL output phases is considered as a reference phase, φ0, it can be said that some of its other output phases (related to an equal number of reference signal delays) can be interpreted as the symbols of a PSK constellation.…”

Section: Bsu Prototype and Modulator-less Polar Transmitter Theomentioning

confidence: 99%

A modulator-less beam steering transmitter based on a revised DDS-PLL phase shifter architecture

D'Amato

Avitabile

Coviello

et al. 2018

JCOMSS

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This paper details the design and implementation of a modulator-less beam steering transmitter based on a revised DDS-PLL phase shifter architecture. The proposed topology targets low data rate communications for Internet-of-Things systems, and has been demonstrated using an FPGA evaluation board and a custom PCB with four PLLs centered at 2.453-GHz. Measured system performance for an experimental 32-kbps data rate achieved through a 16-PSK modulation scheme are discussed. The proposed architecture is frequency independent, can be used in multi-band devices and has the potential for being integrated as an RF System-on-Chip.

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A high precision phase control unit for DDS-based PLLs for 2.4-GHz ISM band applications

Cited by 15 publications

References 14 publications

Linear Active Disturbance Rejection Control of Grid-Connected Photovoltaic Inverter Based on Deviation Control Principle

Linear Active Disturbance Rejection Control of Grid-Connected Photovoltaic Inverter Based on Deviation Control Principle

Two-Phase Resonant Converter to Drive High-Power LED Lamps

A modulator-less beam steering transmitter based on a revised DDS-PLL phase shifter architecture

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