A Single-Stage Symmetrical-Output-Voltage Push-Pull Boost Converter with a Notch Filter for Input-Current-Shaping

Coelho, Fabio; Oliveira, José Carlos de; Farias, V.J.; Coelho, E.A.A.; Freitas, L.C. de; Batista, Jr. Joao

doi:10.1109/apec.2006.1620568

Cited by 7 publications

(8 citation statements)

References 21 publications

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“…The flux paths created are shown in Fig. 4, [9] b Voltage-fed qZSI with cascaded qZS-network [9] c Boost derived push-pull converter [10][11][12][13][14][15] d Z-source and quasi-Z-source DC-DC converters [16] where they are indicated as having opposite directions for the fluxes created by turning on S1 and S2, separately. Their respective magnitudes f P1 and f P2 can also be written as…”

Section: Principle Of Magnetic Shoot-throughmentioning

confidence: 99%

“…Fig. 7 shows that the proposed converter demands a smaller duty cycle for the switches to produce the same gain, or can produce a higher gain at the same duty cycle when compared with the boost derived push-pull converter [10][11][12][13][14][15]. Its advantages over the boost push-pull converter can hence be summarised as follows:…”

Section: Comparison With Other Topologiesmentioning

confidence: 99%

“…Improved push-pull-based boost converter as shown in Fig. 2c, have been introduced in [10][11][12][13][14][15], with an aim to produce a wide range of voltage gain with galvanic isolation between input and output. The voltage gain is high; however, it is achieved at the expense of higher duty cycle and shoot-through period of the switches, which increase the conduction losses and stresses on the switching devices.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High‐voltage boost quasi‐Z‐source isolated DC/DC converter

Siwakoti¹,

Blaabjerg²,

Loh³

et al. 2014

IET Power Electronics

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A high-voltage gain two-switch quasi-Z-source isolated DC/DC converter has been presented in this study. It consists of a quasi-Z-source network at its input, a push-pull square-wave inverter at its middle, and a voltage-doubler rectifier at its output. When coordinated appropriately, the new converter uses less switches, a smaller common duty cycle and less turns for the transformer when compared with existing topologies. Its size and weight are therefore smaller, whereas its efficiency is higher. It is therefore well-suited for applications, where a wide range of voltage gain is required like renewable energy systems, DC power supplies found in telecom, aerospace and electric vehicles. To demonstrate the performance of the proposed converter, a 400 V, 500 W prototype has been implemented in the laboratory. Efficiency of the prototype measured is found to vary from 89.0 to 97.4% when its input voltage changes from 44 to 82 V at full load.

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Section: Principle Of Magnetic Shoot-throughmentioning

confidence: 99%

Section: Comparison With Other Topologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High‐voltage boost quasi‐Z‐source isolated DC/DC converter

Siwakoti¹,

Blaabjerg²,

Loh³

et al. 2014

IET Power Electronics

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show abstract

“…A single magnetic core is used. The interleaved operations of the switches act like a push-pull converter [6]- [7]. The difference is that the operating frequency of the core is double of the switching frequency, which means that the circuit volume and the current ripple can be reduced.…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of a push-pull quasi-resonant boost power factor corrector

et al. 2010

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This paper proposes a novel power factor corrector (PFC) which is mainly composed of two-phase transition-mode (TM) boost-type power factor correctors (PFCs) and a coupled inductor. By integrating two boost inductors into one magnetic core, not only the circuit volume is reduced, but also the ripple current at the input side is lower. Therefore, both the power factor (PF) value and the power density are increased. The proposed topology is capable of sharing the input current and output current equally. A cut-in-half duty cycle can reduce the conduction losses of the switches and both the turns and diameters of the inductor windings. The advantages of a TM boost PFC, such as quasi-resonant (QR) valley-switching on the switch and zero-current-switching (ZCS) of the output diode, are maintained to improve the overall conversion efficiency. Detailed analysis and design procedures of the proposed topology are given. Simulations and experiments are conducted on a prototype with a universal line voltage, a 380-V output DC voltage and a 200-W output power to verify its feasibility.

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“…The output power capability can be promoted up to the medium power level applications. Coupling the two-phase boost inductors into the same magnetic core acts as the interleaved operations of the switches [10][11][12][13][14][15][16][17][18][19][20] for the push-pull converters [21][22][23][24]. The difference is that the operating frequency of the core is double of the switching frequency.…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of a push–pull DCM boost power factor corrector

Lin

et al. 2011

Circuit Theory & Apps

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SUMMARYA novel power factor corrector (PFC) composed of two-phase discontinuous conduction mode (DCM) boost PFCs and a coupled inductor is proposed in this paper. By coupling the two-phase boost inductors into the same magnetic core, both the circuit volume and the input ripple current are reduced. Therefore, the power factor (PF) value and the power density are improved. In addition, the output capacitor size can be smaller. The proposed topology distributes the input current and output current equally for the two phase modules. A cut-in-half duty cycle can decrease the conduction losses of the switches, and both the turns and diameters of the inductor windings, which help more in the reduction of the circuit volume. The advantages of a DCM boost PFC, such as natural zero-current-switching (ZCS) of the output diode, a natural PFC function and the simplified EMI filter design, are maintained. Detailed analysis and design of the proposed topology and the experimental results on a prototype with a 380-V output voltage and a 200-W output power are provided.

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A Single-Stage Symmetrical-Output-Voltage Push-Pull Boost Converter with a Notch Filter for Input-Current-Shaping

Cited by 7 publications

References 21 publications

High‐voltage boost quasi‐Z‐source isolated DC/DC converter

High‐voltage boost quasi‐Z‐source isolated DC/DC converter

Analysis and design of a push-pull quasi-resonant boost power factor corrector

Analysis and design of a push–pull DCM boost power factor corrector

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