A Switched Capacitor Based AC/DC Resonant Converter for High Frequency AC Power Generation

Xu, Chi; Cheng, Ka Wai Eric

doi:10.3390/en81010842

Cited by 4 publications

(3 citation statements)

References 20 publications

(19 reference statements)

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“…For full-wave conductors in practical energy harvesting systems, however, the possibility of a full-powered circuit is a crucial factor to consider [24][25][26][27]. The first is typically a diode bridge, whereas the second is a toggling power converter [28][29]. Piezoelectric micropower generators with modified power conversion circuits [30][31][32] include a half-wave synchronous rectifier with a voltage doubler, a full-wave synchronous rectifier, and a passive full-wave rectifier circuit.…”

Section: Review Of Passive and Active Ac-dc Rectification Techniquesmentioning

confidence: 99%

Review of Active Circuit and Passive Circuit Techniques to Improve the Performance of Highly Efficient Energy Harvesting Systems

Fang

Rahim

Romli

et al. 2023

ARASET

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In piezoelectric energy harvesting systems, energy harvesting circuits are the interface between piezoelectric devices and electrical loads. The conventional view of this interface is based on the concept of impedance matching. In fact, in the power supply circuit can also apply as an electrical boundary conditions, such as voltage and charge, to piezoelectric devices for each energy conversion cycle. The major drawback of piezoelectric power harvesting have low-power relationships in systems within (in the range of μW to mW), then system also have significantly reduced any potential losses in circuits that make up the EH system, whereas other condition into careful selection of circuits and components can enhanced the energy harvesting performance and electricity consumption. In the study of energy harvesting systems, it is an energy harvesting system approach that using active and passive electronic circuit to control voltage and or charge on piezoelectric devices as proposed and review to mechanical inputs for optimized energy conversion. Several factors in the practical limitation of active and passive energy consumption, due to device limitations and the power efficiency of electronic circuits, will be introduced and have played an important role into to enhance optimum and increase efficiency of energy harvesting system.

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Section: Review Of Passive and Active Ac-dc Rectification Techniquesmentioning

confidence: 99%

Review of Active Circuit and Passive Circuit Techniques to Improve the Performance of Highly Efficient Energy Harvesting Systems

Fang

Rahim

Romli

et al. 2023

ARASET

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“…This control strategy dramatically increases the adjustable output voltage range and achieves an incredible maximum output power of 20 kW, and the proposed converter's test machine passes the stringent industry specifications with amazing robustness and stability [15]. The proposed LLC converter has excellent control accuracy over the specified output range and enables smooth automatic adjustment when changing load conditions, while maintaining a stabilized target output voltage value [16].…”

Section: Introductionmentioning

confidence: 96%

A High Power Interleaved Parallel Topology Full-Bridge LLC Converter for Off-Board Charger

Chen¹,

Yang²,

Tang³

et al. 2021

IEEE Access

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“…The main advantages of this technique are that the bulky magnetic components are no longer needed and just a pair of complementary pulse signals with fixed duty ratio 0.5 is required to control all switches [9,10]. It means SC voltage equalizer can be designed with smaller size and lower cost.…”

Section: Introductionmentioning

confidence: 99%

An Automatic Switched-Capacitor Cell Balancing Circuit for Series-Connected Battery Strings

Cheng

2016

Energies

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Abstract:In this paper, a novel voltage equalizer is developed for series battery strings based on the two-phase switched capacitor technique. Different from the conventional voltage equalizers which are developed by switched-mode power converters, bulky magnetic components and complex monitoring and control system are avoided in the proposed system. Just a pair of complementary pulse signals with constant switching frequency and fixed duty ratio are required to control all of switches employed in the proposed voltage equalizer, and charge transfers from the higher voltage battery cells to lower voltage ones automatically. The circuit configuration and operation principle are provided in this paper. The model of the proposed voltage equalizer is also derived. Comparison with other works indicates that the proposed method is superior to the conventional switched-capacitor (SC) voltage equalizer for the high stack of series battery strings. Experimental results demonstrate that the proposed voltage equalization system is capable of excellent voltage balancing performance with a simple control method.

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A Switched Capacitor Based AC/DC Resonant Converter for High Frequency AC Power Generation

Cited by 4 publications

References 20 publications

Review of Active Circuit and Passive Circuit Techniques to Improve the Performance of Highly Efficient Energy Harvesting Systems

Review of Active Circuit and Passive Circuit Techniques to Improve the Performance of Highly Efficient Energy Harvesting Systems

A High Power Interleaved Parallel Topology Full-Bridge LLC Converter for Off-Board Charger

An Automatic Switched-Capacitor Cell Balancing Circuit for Series-Connected Battery Strings

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