A review on enabling technologies for high power density power electronic applications

Mahesh, M.; Kumar, Kundan; Abebe, Mesfin; Udayakumar, L.; Mathankumar, M

doi:10.1016/j.matpr.2021.02.340

Cited by 25 publications

(8 citation statements)

References 19 publications

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“…2. Resonant gate drivers may encounter frequency mismatch between the resonant frequency and the control frequency [15,[20][21][22][23]. When the control frequency and the resonant frequency are not perfectly matched, the system may face issues such as overvoltage [24], increased losses [25], and over-resonance, severely affecting system reliability.…”

Section: Introductionmentioning

confidence: 99%

Resonant Gate Drive Circuit with Active Clamping to Increase Efficiency and Reliability

Zheng,

Du,

Chen

et al. 2024

WEVJ

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In power converters with high switching frequency, drive losses constitute a significant portion of the overall power losses. Resonant gate drivers can reduce drive losses, thereby enhancing the efficiency. However, resonant drivers suffer certain challenges: parameter drifts lead to the mismatch between the resonant frequency and the control frequency, and this mismatch can cause gate-to-source voltage overshoot. Moreover, the resonant driver is susceptible to external interference. This paper proposes a resonant circuit structure and control timing scheme aimed at overcoming these limitations. By incorporating a half-bridge clamp circuit, the proposed design achieves voltage clamping, thereby insulating the system from disturbances caused by mains power fluctuations. When there is a mismatch in resonant frequencies, the strategy employs a combination of hardware circuit diodes and control system timing to prevent overvoltage issues. Additionally, the utilization of MOSFETs minimizes the loss caused by prolonged current flow through body diodes, further reducing the resonant driving losses. Simulations have demonstrated the system’s stability under varying resonant parameters and its effective anti-interference capabilities in voltage clamping. Experiments achieved a power saving of 83.3% at a 1 MHz operating frequency. Both simulations and experimental validations confirm the feasibility of the proposed solution, its effectiveness in interference suppression, handling of resonant mismatches, and its role in further augmenting power conservation.

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Section: Introductionmentioning

confidence: 99%

Resonant Gate Drive Circuit with Active Clamping to Increase Efficiency and Reliability

Zheng,

Du,

Chen

et al. 2024

WEVJ

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“…The far-field category refers to the transmission of a large amount of energy between two positions, e.g., sending energy by electromagnetic waves. Near-field WPT refers to the distance of transfer energy within the wavelength (λ) of the transmitter antenna [6][7][8]. This paper will focus on near-field WPT.…”

Section: Introductionmentioning

confidence: 99%

Inductive Compensation of an Open-Loop IPT Circuit: Analysis and Design

Ponce-Silva,

García-García,

Arau

et al. 2023

Inventions

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The main contribution of this paper is the inductive compensation of a wireless inductive power transmission circuit (IPT) with resonant open-loop inductive coupling. The variations in the coupling coefficient k due to the misalignment of the transmitter and receiver are compensated with only one auxiliary inductance in the primary of the inductive coupling. A low-power prototype was implemented with the following specifications: input voltage Vin = 27.5 V, output power Po = 10 W, switching frequency f = 500 kHz, output voltage Vo = 12 V, transmission distance d = 1.5 mm. Experimental results varying the distance “d” with several values of the compensation inductor demonstrate the feasibility of the proposal. An efficiency of 75.10% under nominal conditions was achieved. This proposal is a simple compensation topology for wireless chargers of cellular phones presenting small distances between the transmitter and receiver.

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“…The rising demand for high power density electronics requires miniaturization and integration of chips or devices which are smaller and more powerful. 1,2 At the same time, the super high power makes it much harder to manage the heat ux and thus leads to fatal overheating problems, ultimately resulting in worse reliability of devices. Today, more than half of the power consumption in electronic components is converted to waste heat energy, which makes heat dissipation and thermal management a key issue.…”

Section: Introductionmentioning

confidence: 99%

Atomic layer deposited high quality AlN thin films for efficient thermal management

Zhang,

Li,

Fang

et al. 2023

J. Mater. Chem. A

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A review on enabling technologies for high power density power electronic applications

Cited by 25 publications

References 19 publications

Resonant Gate Drive Circuit with Active Clamping to Increase Efficiency and Reliability

Resonant Gate Drive Circuit with Active Clamping to Increase Efficiency and Reliability

Inductive Compensation of an Open-Loop IPT Circuit: Analysis and Design

Atomic layer deposited high quality AlN thin films for efficient thermal management

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