A New Phase Shifted ZVS-PWM Controlled Full Bridge Series Resonant High Frequency Inverter with Auxiliary Active Quasi-Resonant Commutation Circuit

Sugimura, Hisayuki; Kwon, Sang Jik; Ogiwara, H.; Hiraki, Eiji; Nakaoka, Mutsuo

doi:10.1109/pccon.2007.373163

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…Also, environmental heat losses from the pipe's outer wall dramatically degrade the system efficiency. In other studies, as another approach, induction heating is achieved with the help of metal heater immersed in a fluid [12][13][14][15][16][17][18][19][20][21][22][23][24]. In such systems non-metallic pipe, coil, and heat exchanger, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In the reported systems, different types of heat exchanger have been investigated. These include cylindrical and spiral heater structures with involuted shapes towards the centre [12][13][14][15][16][17], carbon ceramic heaters that consist of many thin axial tubes [15][16][17][18], heaters with metal layer structure [17][18][19][20][21], and heaters with an iron core rod stick at the centre and foamed metals with ring shapes placed around the stick [22]. Although these structures provide high contact surface and uniform heating, they are complex and not suitable for mass production.…”

Section: Introductionmentioning

confidence: 99%

“…Although these structures provide high contact surface and uniform heating, they are complex and not suitable for mass production. Also, the heater with an iron core rod stick at its centre and ring shape foamed metals around the stick might decrease the fluid's flow rate [22]. Heaters with unusual geometries such as cork screw and star shapes were also reported [23, 24].…”

Section: Introductionmentioning

confidence: 99%

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High‐efficiency flow‐through induction heating

Kılıç

Ünal

Demir

2020

IET Power Electronics

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This study reports a newly designed induction heating system for efficient, fast, and safe flow-through heating. The system has a very simple architecture, which is composed of a transmitting coil, an isolating plastic pipe, and an embedded metal shell. Wireless energy transfer from the external coil to the internal metal shell through the pipe is essential for decreasing losses. Also, a large contact surface between a fluid and the immersed shell enables rapid heat transfer. The proposed heating system was systematically investigated for different shell geometries and the results were compared with a commercially available conductive flow-through heating device. As a proof-of-concept demonstration, a prototype of the designed induction heating system was manufactured and the heating measurements were conducted with water. Power transfer efficiency of the prototyped induction heating system was measured to be 97%. The comparative study indicates that such high-efficiency induction flow-through heating system offers a great potential for replacing the conventional conductive heating device used in household applications in which the rapid and compact heating is desired.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High‐efficiency flow‐through induction heating

Kılıç

Ünal

Demir

2020

IET Power Electronics

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“…switching frequency limitation for the low-medium output power settings, thereby the wide range power regulation oh the IH load cannot be ensured [3]. In addition, improvement of power density cannot be expected in the asymmetrical halfbridge HF inverter without the complicated power regulation schemes [5] [6], and so in the phase shift PWM (PS-PWM) full-bridge (FB) inverters [11]- [15] because of the narrow softswitching range. In particular, the conventional ZVS PS-PWM FB HF inverter as depicted in Fig.…”

Section: Introductionmentioning

confidence: 99%

A New Current Phasor-Controlled ZVS Twin Half-Bridge High-Frequency Resonant Inverter for Induction Heating

Mishima

Takami

Nakaoka

2014

IEEE Trans. Ind. Electron.

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A novel soft-switching high-frequency (HF) resonant (HF-R) inverter for induction heating (IH) applications is presented in this paper. By adopting the current phasor control of changing a phase shift (PS) angle between two half-bridge inverter units, the IH load resonant current can be regulated continuously under the condition of wide range soft-switching operations. In addition to this, the dual mode power regulation scheme based PS angle control & asymmetrical pulse-widthmodulation (PWM) in one inverter unit is proposed for improving the efficiency in low output power settings. The essential performances on the output power regulation and soft-switching operations are demonstrated in an experiment using its 1 kW-60 kHz HF-R inverter prototype, then the topological validity is evaluated from a practical point of view. Index Terms-induction heating (IH), high-frequency (HF) resonant (HF-R) inverter, zero voltage soft-switching (ZVS), current phasor, phase shift (PS) angle control, asymmetrical PWM.

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“…The output power of these converters is controlled by changing the switching frequency and therefore, the control circuit is complex. However, in some converters, such as full-bridge converter, constant frequency phase-shift modulation can be used [19]. Also, in quasi-resonant converters, the magnetic elements cannot be designed optimal due to variation in switching frequency.…”

Section: Introductionmentioning

confidence: 99%

Family of single‐switch soft‐switching pulse‐width modulation DC–DC converters with reduced switch stress

Khalilian¹,

Adib²,

Farzanehfard³

2014

IET Power Electronics

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In this study, a new family of pulse width modulation DC-DC converters is introduced. The proposed converters have one switch that turns on at zero current switching condition and turns off at zero voltage switching condition. The proposed auxiliary circuit can be used instead of converter switch in any non-isolated and isolated DC-DC converter. The buck converter from this converter family is analysed and its operating modes are discussed. The design considerations are presented and a prototype is realised. The experimental results confirm the validity of theoretical analysis.

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A New Phase Shifted ZVS-PWM Controlled Full Bridge Series Resonant High Frequency Inverter with Auxiliary Active Quasi-Resonant Commutation Circuit

Cited by 9 publications

References 3 publications

High‐efficiency flow‐through induction heating

High‐efficiency flow‐through induction heating

A New Current Phasor-Controlled ZVS Twin Half-Bridge High-Frequency Resonant Inverter for Induction Heating

Family of single‐switch soft‐switching pulse‐width modulation DC–DC converters with reduced switch stress

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