High-Frequency Resonant Transistor DC-DC Converters

Steigerwald, R.L.

doi:10.1109/tie.1984.350066

Cited by 300 publications

(82 citation statements)

References 6 publications

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“…Introducing expressions (7,10) yields that an amplitude of current in resonant circuit with resistance is Computer simulations show that at rising of switching relation * sw  a shape of current differs a lot from the sine-wave form -it is closer to the triangular one (see Fig. 4).…”

Section: Simplified Mathematical Description Of the Processesmentioning

confidence: 99%

“…At that the later should be provided increasing a control switching frequency above the resonant one which depends on the accepted values of the resonant circuit inductance L and series resonant capacitor C [3,4,5,6]. A good methodology of investigation of the resonant converters is presented in [7,8,9] but without the qZ link. Because of the novelty of the proposed solution a certain evaluation of the method must be done and that is the purpose of the paper.…”

Section: Introductionmentioning

confidence: 99%

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Operation of Resonant DC/DC Converter in the BUCK Operation Regime

Raņķis

Zaķis

2014

Power and Electrical Engineering

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-The series resonant DC/DC converter with isolation transformer is investigated. When switching frequency of input inverter bridge is above the resonant one a shortening of the naturally half-waves of current through a L-C resonant circuit takes place resulting in a circulating current through the DC supply source reducing a mean value of supply current and also reducing load voltage in respect to the one at normally resonant case. The main relations for the case with strong voltage supply source are obtained and operation regimes at raised switching frequency investigated using a computer modeling. Some conclusions are made for proper calculation of parameters. It is shown that the shape of the resonant circuit current at raised frequency grows to the triangular one and that asks for proper correction of the expressions obtained for sinusoidal case. Applying qZ input link processes quite differ from observed for the strong supply -arise charging of the capacitors of the link by influence of circulating current and this phenomena impedes to reducing of the load voltage. That qZ link does not allow to create proper regulation of load parameters.

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Section: Simplified Mathematical Description Of the Processesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Operation of Resonant DC/DC Converter in the BUCK Operation Regime

Raņķis

Zaķis

2014

Power and Electrical Engineering

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“…Note here that the energy dissipated in the internal package inductance is calculated as a function of the collector current once the value of the package inductance is determined. Hence, the tail-current turn-off losses are calculated via (4) A curve-fitting approach can be used to estimate tail-current turn-off loss given by (4). For a given value of snubber capacitance, the turn-off energy loss due to tail current is given by (5) where is the device current and and are the constant coefficients resulting from the second-order polynomial curve-fitted equations.…”

Section: B Turn-on Testmentioning

confidence: 99%

Design considerations and topology selection for a 120-kW IGBT converter for EV fast charging

Kutkut¹,

Divan

Novotny

et al. 1998

IEEE Trans. Power Electron.

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“…The series-parallel load-resonant converter has been previously analysed in the timedomain using state-space analysis [34,[40][41][42][43][44]. Steigerwald [40] proposed the series- …”

Section: Analysis Of the Circuit In The Time-domainmentioning

confidence: 99%