Isolated interleaved-phase-shift-PWM DC-DC ZVS converter

Baggio, J.E.; Hey, H.L.; Gründling, Hilton Abílio; Pinheiro, Humberto; Pinheiro, J.R.

doi:10.1109/tia.2003.818965

Cited by 61 publications

(20 citation statements)

References 5 publications

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“…This simplifies the voltage balancing of all four capacitors considerably. An example of such an ac-dc front-end converter is the three-level boost (TLB) converter that was first proposed in [20] As for the two dc bus capacitors within each half-bridge converter, these can be balanced by using a simple passive auxiliary circuit such as the one proposed in [21]. The reader is referred to this paper for more details about this voltage balancing method.…”

Section: Capacitor Voltage Balancingmentioning

confidence: 99%

Analysis and design of a new multilevel-based dual-type DC/DC converter for switch-mode power supplies

Narimani

Moschopoulos

2012

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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A new three-level DC/DC converter is proposed in the paper. The outstanding feature of this converter is that it operates with ZVS from full-load to no-load conditions with hardly any circulating freewheeling primary current due to its novel structure. Since the converter has no circulating current and its switches are exposed to only half the input voltage, it has high efficiency even when operating under light load conditions. In the paper, the new converter is introduced, its basic operating principles are explained, its modes of operation and its steadystate characteristics are discussed in detail as is its design, and experimental results obtained from a prototype converter that confirm its feasibility are presented.

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Section: Capacitor Voltage Balancingmentioning

confidence: 99%

Analysis and design of a new multilevel-based dual-type DC/DC converter for switch-mode power supplies

Narimani

Moschopoulos

2012

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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“…Therefore, in many high power applications, multiple phase boost converters are often adopted in order to increase the power capacity and interleaving operation is used to cancel the current ripple and reduce the volume of the input EMI filter. Meanwhile, the input/output current/voltage ripple can still be minimized without sacrificing efficiency [4]- [6].…”

Section: Introductionmentioning

confidence: 99%

“…With the turnon time shifting method, a boost converter operated in the slave phase may turn on before the inductor current reaches zero, and it may lose ZCS for the diode. Thus the turn-off Manuscript received Jan. 4 time shifting method appears to be a better choice since both the master phase and the slave phase can be worked with CRM operation which guarantees ZCS operation for the diode in any case. However, a so-called sub-harmonic oscillation phenomenon occurs at high line voltages for this operating mode.…”

Section: Introductionmentioning

confidence: 99%

A Novel Interleaving Control Scheme for Boost Converters Operating in Critical Conduction Mode

Yang¹,

Ying²,

Chen³

2010

Journal of Power Electronics

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Interleaving techniques are widely used to reduce input/output ripples and to increase the power capacity of boost converters operating in critical conduction mode. Two types of phase-shift control schemes are studied in this paper, the turn-on time shifting method and the turn-off time shifting method. It is found that although the turn-off time shifting method exhibits better performance, it suffers from sub-harmonic oscillations at high input voltages. To solve this problem, an intensive quantitative analysis of the sub-harmonic oscillation phenomenon is made in this paper. Based upon that, a novel modified turn off time shifting control scheme for interleaved boost converters operating in critical conduction mode is proposed. An important advantage of this scheme is that both the master phase and the slave phase can operate stably in critical conduction mode without any oscillations in the full input voltage range. This method is implemented with a FPGA based digital PWM control platform, and tests were carried out on a two-phase interleaved boost PFC converter prototype. Experimental results demonstrated the feasibility and performance of the proposed phase-shift control scheme.

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“…However, in this operation mode the switching frequency is variable and the current or voltage ripple of the converter with CRM operation is higher than those with CCM operation, this is generally undesirable for high power and power factor correction applications [1]- [3]. Therefore, in high power applications, boost converters are often paralleled in an interleaved manner to increase the processed power capacity and reduce the volume of front EMI filter, while still keeping low current or voltage ripple in the input and output waveforms without sacrificing efficiency [4]- [7].…”

Section: Introductionmentioning

confidence: 99%

A Novel Phase-shift Control Scheme for Interleaved Boost Converters Operating in Critical Conduction Mode

Yin

Yang

Bai³

et al. 2009

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition

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Interleaving techniques are adopted to reduce input/output current or voltage ripples for converters with critical conduction mode. The paper studies and implements two types of phase-shift control schemes for critical interleaved boost PFC converters. Sub-harmonic oscillation phenomena occur at high line voltage when one of them is adopted. So this paper presents a quantitative analysis on the phenomena and proposes a novel phase-shift control scheme. Experimental results are presented in order to verify the feasibility and performance of the novel phase-shift control scheme.

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Isolated interleaved-phase-shift-PWM DC-DC ZVS converter

Cited by 61 publications

References 5 publications

Analysis and design of a new multilevel-based dual-type DC/DC converter for switch-mode power supplies

Analysis and design of a new multilevel-based dual-type DC/DC converter for switch-mode power supplies

A Novel Interleaving Control Scheme for Boost Converters Operating in Critical Conduction Mode

A Novel Phase-shift Control Scheme for Interleaved Boost Converters Operating in Critical Conduction Mode

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