Zero-voltage-switched quasi-resonant buck and flyback converters-experimental results at 10 MHz

Tabisz, W.A.; Gradzki, P.M.; Lee, F.C.Y.

doi:10.1109/63.24904

Cited by 111 publications

(28 citation statements)

References 7 publications

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“…For instance, the use of diamond-added AgSnCu solder materials for chip package coupled with a high thermal conductive metal-core printed circuit board (MCPCB), where the conventional dielectric layer was replaced with a thin diamond-like layer, has been shown to improve thermal heat dissipation [45]. Furthermore, resonance topologies can be utilised to improve the efficiency value [46,47].…”

Section: Discussionmentioning

confidence: 99%

Heterogeneous Integration of GaN and BCD Technologies

et al. 2019

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Light-emitting diodes (LEDs) are solid-state devices that are highly energy efficient, fast switching, have a small form factor, and can emit a specific wavelength of light. The ability to precisely control the wavelength of light emitted with the fabrication process enables LEDs to not only provide illumination, but also find applications in biology and life science research. To enable the new generation of LED devices, methods to improve the energy efficiency for possible battery operation and integration level for miniaturized lighting devices should be explored. This paper presents the first case of the heterogeneous integration of gallium nitride (GaN) power devices, both GaN LED and GaN transistor, with bipolar CMOS DMOS (BCD) circuits that can achieve this. To validate this concept, an LED driver was designed, implemented and verified experimentally. It features an output electrical power of 1.36 W and compact size of 2.4 × 4.4 mm2. The designed fully integrated LED lighting device emits visible light at a wavelength of approximately 454 nm and can therefore be adopted for biology research and life science applications.

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Section: Discussionmentioning

confidence: 99%

Heterogeneous Integration of GaN and BCD Technologies

et al. 2019

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“…MHz [9]. Contrary to the ZCS QRC's, the switching frequency of ZVS QRC's is increased at light loads.…”

Section: Introductionmentioning

confidence: 88%

High-frequency off-line power conversion using zero-voltage-switching quasi-resonant and multiresonant techniques

Jovanovic

Tabisz

Lee

1989

IEEE Trans. Power Electron.

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The characteristics and limitations of the half-bridge zerovoltage-switched (ZVS) quasi-resonant converters (QRC's) are described. A novel multiresonant switch concept is proposed for the halfbridge topology to improve the ZVS QRC's load range. Experimental results for 300-V 75-W zero-voltage-switched quasi-resonant and multiresonant converters operating in the frequency range of 2 MHz to 8 MHz are presented.

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“…As the size of the electronic components such as inductors, capacitors and transformer can be reduced with increasing operating frequency and there is a continuous demand for more compactness in power supply equipment, the switching frequency of the power converter is expected to continue to increase into the Mega-Hertz realm [1]. New power devices based on GaAs and new design of passive components such as planar inductors capacitor have made it possible to operate power converter at a frequency up to 10MHz and beyond [2][3][4][5][6]. Conventional filter components have stray components that will become the limiting factor in the effective filtering bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Alternating stacked inductor for Mega-Hertz power converter and filtering applications

Lee

Chan

Hui

2008

2008 IEEE Power Electronics Specialists Conference

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In this paper, an alternating winding structure for the stacked inductor is studied for use in Mega-Hertz switching converter and filtering applications. This alternating stacked winding structure reduces the parasitic capacitance of a stacked inductor. Thus, the operating frequency range of the inductor is substantially extended. The equivalent capacitances of the alternating stacked inductors are estimated by energy consideration in an attempt to explain the relative magnitudes of the capacitances of the stacked inductors with similar but different structures. Both theoretical analysis and practical measurements have confirmed the bandwidth advantages of the alternating stacked inductors.

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Zero-voltage-switched quasi-resonant buck and flyback converters-experimental results at 10 MHz

Cited by 111 publications

References 7 publications

Heterogeneous Integration of GaN and BCD Technologies

Heterogeneous Integration of GaN and BCD Technologies

High-frequency off-line power conversion using zero-voltage-switching quasi-resonant and multiresonant techniques

Alternating stacked inductor for Mega-Hertz power converter and filtering applications

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