Results 71 to 80 of about 25,801 (307)

Bidirectional vehicle-to-grid interface under a microgrid project [PDF]

open access: yes, 2014
In the emergent deployment of smart grids, storage systems play an important role into assets utilization optimization, providing backup power and peak-shaving. This concept becomes more critical in the context of microgrids with a high penetration of
Batista, José   +2 more
core  

Analysis of a Bidirectional DC-DC Converter with High Voltage Gain [PDF]

open access: yes, 2015
A novel bidirectional DC-DC converter with high conversion ratio is proposed in this paper. The proposed converter uses the three windings coupled-inductor to achieved high voltage conversion ratio.
Razzaghzadeh, B. (Behrouz)   +1 more
core   +1 more source

Wireless Power Transfer Modalities for Implantable Bioelectronics: Electromagnetic, Acoustic, and Magneto‐Dynamic Perspectives

open access: yesAdvanced Materials Technologies, EarlyView.
This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley   +1 more source

Theoretical Analysis of a Three-Phase Bidirectional Isolated DC-DC Converter Using Phase-Shifted Modulation [PDF]

open access: yes, 2018
A three-phase bidirectional isolated dc-dc converter consists of two six-pulse two-level active converters that enable bidirectional power flow by introducing a lag phase-shift angle of one converter with respect to the other converter.
Hussain, Ida Suzana   +2 more
core   +2 more sources

Mapping of Physiological Signals From Wireless Battery‐Free Implants With Plane‐Wave Ultrasound Imaging

open access: yesAdvanced Materials Technologies, EarlyView.
Combined approach of electromagnetic (Power) and ultrasound (data harvesting) waves is proposed to address the miniaturized ultrasonic implants. Electromagnetic waves trigger the piezoelectric element to generate the acoustic pulse which is modulated by the variations in the sensor's impedance.
Anam Bhatti   +6 more
wiley   +1 more source

Push-pull switching power amplifier [PDF]

open access: yes, 1980
A true push-pull switching power amplifier is disclosed utilizing two dc-to-dc converters. Each converter is comprised of two inductances, one inductance in series with a DC source and the other inductor in series with the output load, and an electrical ...
Cuk, Slobodan M.
core   +1 more source

High efficiency bidirectional 5kW DC-DC converter with super-junction MOSFETs for electric vehicle super-capacitor systems [PDF]

open access: yes, 2015
This paper presents a high efficiency 5-kW bidirectional DC-DC converter for use in electric vehicle super-capacitor systems. Super-junction MOSFETs are deployed in the power stage to minimize losses.
Anthony, Philip   +3 more
core   +2 more sources

Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC

open access: yesAdvanced Robotics Research, EarlyView.
The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang   +7 more
wiley   +1 more source

A Full-Controlled Bidirectional Dual-Stage Interleaved Converter for Interfacing AC and DC Power Grids

open access: yesEnergies
Power grids are progressing, and the possibility of incorporating DC grids toward hybrid AC/DC grids is gaining increasing relevance, as several technologies available nowadays are operating natively in DC.
Goncalo Marques   +2 more
doaj   +1 more source

Speed Control and Regenerative Braking of Bidirectional DC-DC Converter Fed Permanent Magnet DC Motor [PDF]

open access: yes, 2015
This thesis mainly emphasis on speed control and regenerative braking of PMDC motor fed by a bidirectional DC-DC converter. The main objective is to increase the efficiency of the motor and also the power flow in both directions which also further ...
Chiruvolu, Naganaveen Kumar   +1 more
core  

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