A Novel Lossless Snubber for Boost Converters

Marshall, J.; Kazerani, M.

doi:10.1109/isie.2006.295778

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…By concerning the passive components of snubbers with the resonant interval times, it recommended that the passive components of snubbers and resonant interval times is less than some fraction (0 < k < 1) of the switching period T sw . Thus, the relationship can be pointed out as (21) and (22).…”

Section: Design Guidelines Of Passive Lossless Snubbermentioning

confidence: 99%

“…Thus, to reduce the semiconductor losses in the converter, the soft-switching techniques can be applied to tackle this problem [11][12][13]. In previous studies, several soft-switching techniques have been presented in [14][15][16][17][18][19][20][21][22][23][24][25][26]. This paper considered passive lossless snubber circuit due to the reliability and simple circuit configuration, which is suitable for the EV application [15,19].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of high power density achievement of optimum 4‐level capacitor‐clamped DC–DC boost converter with passive lossless snubber circuit by using Pareto‐Front method

Kasiran

Ponniran

Yatim

et al. 2020

IET Power Electronics

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This study presents the evaluation of the proposed optimum 4-level capacitor-clamped DC-DC boost converter (CCBC) for high power density achievement by using Pareto-Front method. The 4-level CCBC with considering high switching frequency can greatly reduce the inductor size and volume. High switching frequency caused the switching devices to suffer high semiconductor losses. Consequently, the cooling device volume is increased as well. Thus, this study presents softswitching technique in the 4-level CCBC for semiconductor losses reduction. The combination of optimum design of inductor, improvement of circuit structure and soft-switching technique may lead to the highest power density of the converter. A 400 W of the 4-level CCBC converter is designed and experimentally verified. The results show that the inductance and inductor volume required in the 4-level CCBC is reduced by 88.89 and 80.75%, respectively. Besides, Pareto-Front curve shows the highest power density of soft-switching technique with the proposed 4-level CCBC is 6.51 kW/dm 3 at 800 kHz of switching frequency with efficiency of 97.20%.

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Section: Design Guidelines Of Passive Lossless Snubbermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of high power density achievement of optimum 4‐level capacitor‐clamped DC–DC boost converter with passive lossless snubber circuit by using Pareto‐Front method

Kasiran

Ponniran

Yatim

et al. 2020

IET Power Electronics

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show abstract

“…But the fly-back type power converters suffer from the disadvantage of having a very low efficiency due to its increased snubber losses. In Matsui et al (2000) and Marshall and Kazerani (2006), lossless snubbers have been proposed, but no analysis regarding the voltage stress on the device and its possible reduction strategies were shown. As the converters are switched at a very high frequency because of many different advantages, a very large voltage spikes appear on the device at the instant of turn-off due to the presence of stored energy in the leakage inductance of the fly-back converter transformer.…”

Section: Introductionmentioning

confidence: 99%

A modified non-dissipative LC snubber circuit for MOSFET based fly-back converters

Chatterjee

Ganguli

Chakrabarti

et al. 2010

IJPELEC

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High frequency converters with different switching topologies are now being widely used over a wide range of applications, which mainly includes different types of power supplies. Snubber circuit design for high frequency-switched converters using MOSFET as a power device assumes different dimension as regards the minimisation of the power dissipation in the snubber resistance. This paper shows a different mode of operation to reduce the clamp voltage across the device used in fly-back type converter. The LC snubber circuit is almost lossless and of energy regenerative type. A reduced clamp voltage is required not only for device protection, but also to reduce the cross regulation effect in multiple output converters. Simulations and experimental results validate the concept.

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A Boost Converter with Lossless Passive Snubber for Powering the 5G Small Cell Station

Yau

Hung

2022

2022 IEEE Applied Power Electronics Conference and Exposition (APEC)

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A Novel Lossless Snubber for Boost Converters

Cited by 11 publications

References 12 publications

Evaluation of high power density achievement of optimum 4‐level capacitor‐clamped DC–DC boost converter with passive lossless snubber circuit by using Pareto‐Front method

Evaluation of high power density achievement of optimum 4‐level capacitor‐clamped DC–DC boost converter with passive lossless snubber circuit by using Pareto‐Front method

A modified non-dissipative LC snubber circuit for MOSFET based fly-back converters

A Boost Converter with Lossless Passive Snubber for Powering the 5G Small Cell Station

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