Conferences related to Digital-to-frequency converters

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2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)

Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies


2020 59th IEEE Conference on Decision and Control (CDC)

The CDC is the premier conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, automatic control, and related areas.


2020 IEEE 29th International Symposium on Industrial Electronics (ISIE)

ISIE focuses on advancements in knowledge, new methods, and technologies relevant to industrial electronics, along with their applications and future developments.


2020 IEEE Applied Power Electronics Conference and Exposition (APEC)

APEC focuses on the practical and applied aspects of the power electronics business. Not just a power designer’s conference, APEC has something of interest for anyone involved in power electronics including:- Equipment OEMs that use power supplies and converters in their equipment- Designers of power supplies, dc-dc converters, motor drives, uninterruptable power supplies, inverters and any other power electronic circuits, equipments and systems- Manufacturers and suppliers of components and assemblies used in power electronics- Manufacturing, quality and test engineers involved with power electronics equipment- Marketing, sales and anyone involved in the business of power electronic- Compliance engineers testing and qualifying power electronics equipment or equipment that uses power electronics


2020 IEEE Industry Applications Society Annual Meeting

The Annual Meeting is a gathering of experts who work and conduct research in the industrial applications of electrical systems.


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Periodicals related to Digital-to-frequency converters

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Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Circuits and Systems I: Regular Papers, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


Circuits and Systems Magazine, IEEE


Communications, IEEE Transactions on

Telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; and communication theory. In addition to the above, ...


Consumer Electronics, IEEE Transactions on

The design and manufacture of consumer electronics products, components, and related activities, particularly those used for entertainment, leisure, and educational purposes


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Most published Xplore authors for Digital-to-frequency converters

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Xplore Articles related to Digital-to-frequency converters

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Improving grid voltage quality by decentral injection of current harmonics

31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005., 2005

This research project deals with the development of an adjustable converter for injection of fuel cell power. A DC/DC converter stage increasing the voltage level is connected to a DC/AC inverter for grid current injection via a high capacitance DC link. This decouples the momentary power drawn from the energy source from the momentary power being injected into the grid, ...


Analysis of a three phase direct frequency changer for input unbalance correction

Conference Record of the Power Conversion Conference - Yokohama 1993, 1993

Direct frequency changers are designed to work under a balanced input condition. The three phase power frequency input voltage of static power converters may be unbalanced either in phase or in amplitude. This paper discusses a novel technique to produce the output of the converter balanced when the input is amplitude unbalanced. The proposed three phase direct frequency changer can ...


A generalized framework for power spectral estimation

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1980

This correspondence presents a generalized framework for power spectral estimation and shows how three previous estimation methods fit into this framework as special cases. Further, this correspondence clarifies some recent misleading comments made on spectral estimation; in particular, specific references are given that strongly support the use of overlapped weighted segment averaging for spectral estimation.


A Non-Linear Neural D/A Converter for Direct Digital Frequency Synthesizers

The 2006 IEEE International Joint Conference on Neural Network Proceedings, 2006

In this paper, a new non-linear D/A converter (DAC) is presented. This D/A converter uses neural network to approximate a sine function. It is targeted for direct digital frequency synthesizers in which the phase to sine amplitude conversion is usually performed using a ROM. Utilizing the proposed DAC, the power hungry ROM is removed. A design example is presented and ...


Design of Periodic Output Feedback for Robust Stability

1992 American Control Conference, 1992

Discrete-time H<sub>&3x0221E;</sub> results are applied to the design of piecewise-constant, periodic output feedback systems for stability robustness with respect to additive perturbations of the plant state matrix.


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Educational Resources on Digital-to-frequency converters

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IEEE.tv Videos

Analog to Digital Traits
Analog to Digital Types
Dissecting Design Choices in Continuous-time Delta-Sigma Converters
Intermodulation Distortion Mitigation in Microwave Amplifiers and Frequency Converters
Richard Schreier Ph.D: Understanding Delta Sigma Data Converters
Co-design of Power Amplifier and Dynamic Power Supplies for Radar and Communications Transmitters
KeyTalk with Hamish Laird: The Gap Between Large Power Converters and Small Power Converters - APEC 2017
APEC Exhibitor Showcase - Texas Instruments Power Management
Qualifying RF Systems for 5G Using Off the Shelf Parts Without Iterations: MicroApps 2015 - Keysight Technologies
Transportation Electrification: Smart Grids and Sustainable Generation
A 10-40GHz Frequency Quadrupler Source with Switchable Bandpass Filters and >30dBc Harmonic Rejection: RFIC Interactive Forum 2017
Noise-Shaped Active SAR Analog-to-Digital Converter - IEEE Circuits and Systems Society (CAS) Distinguished Lecture
IMS 2014:Active 600GHz Frequency Multiplier-by-Six S-MMICs for Submillimeter-Wave Generation
Analog Devices, Inc. accepts the IEEE Corporate Innovation Award - Honors Ceremony 2017
APEC 2010 - Exhibitor Overview
Micro-Apps Keynote 2013: Modern RF Measurements and How They Drive Spectrum Analyzer Digital IF Processor Design
IEEE Day Future Milestones: 100% Renewable Energy penetration Is Possible
IMS 2011 Microapps - Understanding the Proper Dielectric Constant of High Frequency Laminates to Be Used for Circuit Modeling and Design
The Intergrid - Safe, Dependable, Sustainable: IECON 2018
A Highly-Efficient 138?170GHz SiGe HBT Frequency Doubler for PowerConstrained Applications: RFIC Interactive Forum

IEEE-USA E-Books

  • Improving grid voltage quality by decentral injection of current harmonics

    This research project deals with the development of an adjustable converter for injection of fuel cell power. A DC/DC converter stage increasing the voltage level is connected to a DC/AC inverter for grid current injection via a high capacitance DC link. This decouples the momentary power drawn from the energy source from the momentary power being injected into the grid, allowing arbitrary output current waveforms without an increase of input current ripple. Conventionally, pure fundamental frequency currents are considered the optimum waveform regarding the injected currents impact on the grid. This paper demonstrates how grid voltage harmonics caused by nonlinear loads can be minimized by adapting the converters injected current shape. In contrast to harmonics compensation in industrial applications where the compensation current is determined by measuring the local loads current harmonics, the intended decentral application in private houses suggests a different approach to improve overall grid voltage quality. The digital signal processor used for the converters control and monitoring functions calculates the frequency spectrum of the measured grid voltage run by digital Fourier transformation (DFT) and determines the current harmonics necessary to counteract the present voltage harmonics. The resulting current frequency spectrum is modulated into a time dependant current shape that is added to the fundamental frequency current run determined by the requested amounts of active and reactive power. This way, harmonic currents of the local loads are compensated without changes in the house installation for measuring the loads currents. Also current harmonics of neighbouring houses are compensated.

  • Analysis of a three phase direct frequency changer for input unbalance correction

    Direct frequency changers are designed to work under a balanced input condition. The three phase power frequency input voltage of static power converters may be unbalanced either in phase or in amplitude. This paper discusses a novel technique to produce the output of the converter balanced when the input is amplitude unbalanced. The proposed three phase direct frequency changer can find wide applications in motion control, specifically AC drives, when the input AC is amplitude unbalanced. Analytically predicted results are verified by simulation.<<ETX>>

  • A generalized framework for power spectral estimation

    This correspondence presents a generalized framework for power spectral estimation and shows how three previous estimation methods fit into this framework as special cases. Further, this correspondence clarifies some recent misleading comments made on spectral estimation; in particular, specific references are given that strongly support the use of overlapped weighted segment averaging for spectral estimation.

  • A Non-Linear Neural D/A Converter for Direct Digital Frequency Synthesizers

    In this paper, a new non-linear D/A converter (DAC) is presented. This D/A converter uses neural network to approximate a sine function. It is targeted for direct digital frequency synthesizers in which the phase to sine amplitude conversion is usually performed using a ROM. Utilizing the proposed DAC, the power hungry ROM is removed. A design example is presented and the performance of the DAC is compared to the conventional method. The impact of non- idealities on the performance of the system is also investigated.

  • Design of Periodic Output Feedback for Robust Stability

    Discrete-time H<sub>&3x0221E;</sub> results are applied to the design of piecewise-constant, periodic output feedback systems for stability robustness with respect to additive perturbations of the plant state matrix.

  • Design and Implementation of a High Switching Frequency Digital Controlled SMPS

    This paper describes design and implementation of a high switching frequency digitally controlled boost converter. A mixed control approach is applied to reach a high performance. An FPGA based implementation with 1 MHz switching frequency is build to verify the control methodology, and two controllers with 1 MHZ and 10 MHz switching frequency is applied on silicon. The raising edge of Vout to drive four LEDs is less than 100 mus.

  • A Segmented Digital Pulse Width Modulator with Self-Calibration for Low-Power SMPS

    The next-generation, digitally controlled DC-DC converters require a high frequency, high resolution, low power and area efficient digital pulse width modulator (DPWM). This paper introduces a self-calibrated segmented DPWM that uses a delay-locked loop to calibrate adjacent delay segments. An 8-bit prototype designed in a 0.13-μm CMOS process operates at a switching frequency of 11.6 MHz, draws 190μA from a 1.2 V supply and occupies only 0.0075 mm2.

  • A novel digital PID controlled dc-dc converter

    This paper presents the relationship between the dynamic characteristics and sampling frequency of digitally controlled dc-dc converter with a novel control method. In the proposed method, the calculation process of P and I-D controls is parallel. The sampling interval and points for I-D control are same to the conventional method. However, the sampling point for P control is quickly. The AD converter can sample the output voltage during the short interval because the calculation process of P control is very simple and to important for transient response. The only sample data near the turn-off timing of PWM pulse is used. The simulation and experiment results of the output voltage against the step change of the load and changing the P control sampling frequency are discussed. As a result, it is revealed experimentally that the good transient response is obtained.

  • Dual focus Cassegrainian module can achieve ≫45% efficiency

    Various types of multijunction solar cells have now been demonstrated with energy conversion efficiencies over 40%. Higher cell efficiencies are still possible. NREL, Fraunhoffer and others have announced >40% Inverted metamorphic triple-junction (IMMTJ) InGaP/GaAs/GaInAs cells. One key feature of these cells is that the lowest bandgap cell is no longer a Ge cell. The IMMTJ lowest cell bandgap now allows for a 4thjunction cell either integrated or separate. Herein, it is observed that the dual focus Cassegrainian (DFC) module can be fitted with a InGaP/GaAsP/InGaAs triple junction cell at its primary focus and with a GaSb or other IR sensitive cell at its secondary focus. This can allow a straight forward rapid path to a combined cell efficiency of >44%. The potential advantages of this configuration are, first, a rapid path to a combined cell efficiency of 44%, and second, given the fact that the heat load is divided into two locations, both cells will run cooler giving a higher module efficiency.

  • A MOPSO Self Regulating PID Dynamic Error Driven Controller for Tidal Wave Energy Conversion

    The paper proposes novel FACTS based stabilization scheme for maximum energy utilization of a tidal energy system using Particle Swarm Optimization PSO search technique. PSO is implemented in the control of a hybrid low cost dynamic filter/capacitor compensation DFC and Static VAR Compensator SVC (TCR+FC) scheme. The dynamic self regulating control method uses real time error to stabilize the Tidal Wave Energy Conversion Scheme (TWEC). The control objective is to track and extract maximum available energy from the tidal wave energy scheme and transfer this energy efficiency to the local isolated electric load.



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