• Title/Summary/Keyword: High frequency inverter

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Novel ZCS-PFM Series Resonant High Frequency Inverter for Electromagnetic Induction Eddy Current-Heated Roller

  • Mun, Sang-Pil;Kang, Shin-Chul;Kim, Soo-Wook;Nakaoka, Mutsuo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.22 no.7
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    • pp.28-36
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    • 2008
  • This paper presents a novel prototype of zero current switching pulse frequency modulation (ZCS-PFM )high frequency series resonant inverter using IGBT power module for electromagnetic induction eddy current heated roller in copy and printing machines. The operating principle and unique features of this voltage-fed half bridge inverter with two additional soft commutation inductor snubber are presented including the transformer modeling of induction heated rolling drum. This soft switching inverter can achieve stable zero current soft commutation under a discontinuous and continuous resonant load current for a widely specified power regulation processing. The experimental results and computer-aided analysis of this inverter are discussed from a practical point of view.

Zero Voltage Soft Switching PWM High-Frequency Inverter with Active Inductor Snubber for Induction Heated Roller in New Type Copy Machine

  • Muraoka S.;Feng Y.L.;Kunimoto H.;Chandhaket S.;Okuno A.;Nakaoka M.
    • Proceedings of the KIPE Conference
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    • 2001.10a
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    • pp.75-79
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    • 2001
  • This paper presents a novel version of an active voltage clamped ZVS-PWM high frequency inverter using IGBTs for electromagnetic induction eddy current-based rolling drum heating in new generation copy and printing machines in consumer business use. The operating principle of this inverter circuit and unique features are described herein. Its constant frequency duty cycle (asymmetrical PWM) controlled voltage source quasi-resonant soft switching high frequency inverter employing IGBTs is proposed, which is capable of achieving stable and efficient zero voltage soft switching commutation over a widely specified power regulation range from full power to low power. The operating performances in a steady state of this inverter is discussed and evaluated on basis of simulation and experimental results as an induction heated roller in new generation copy machine.

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New Partial Resonant Zero Voltage Switching PWM High Frequency Inverter using Induction Heating (유도 가열용에 사용되어지는 새로운 부분공진형 영전압 스위칭 PWM 고주파 인버터)

  • Jung, Young-Su;Mun, Sang-Pil;Park, Han-Seok
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.64 no.4
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    • pp.261-266
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    • 2015
  • This paper presents a newly proposed prototype of voltage-fed half-bridge partial resonant zero voltage switching PWM inverter operating at a constant frequency variable power regulation scheme, which is more suitable and acceptable for induction heated(IH) cooking appliances. This application-specific high frequency inverter circuit topology using a new generation specially-designed IGBTs can operate under a principle of a fixed frequency ZVS-PWM strategy. The operating principle of a new partial resonant inverter circuit is described on the basis of its computer-aided simulation analysis, its including steady-state operating characteristics.

A Study on Phase Shift of Driving Signal in order to Output Control of Inverter for High Frequency Induction Heating (고주파 유도가열용 인버터의 출력제어를 위한 구동신호의 위상 천이에 관한 연구)

  • Lee Bong-Seob;Choi Shin-Hyeong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.7 no.4
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    • pp.580-586
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    • 2006
  • This paper proposes high frequency inverter for induction heating and discusses output control of high frequency inverter. Output control method of inverter is controlled by phase shift of switching devices applied to driving signal and the principle and a characteristic estimates of proposed circuit described on normal parameters. Also output characteristics for circuit design presented to numeric analysis and experimental equipment is made to compare theoretical result with an experimental result and an established characteristic estimate.

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Novel Electromagnetic Induction Eddy Current DPH based Continuous Pipeline Fluid Heating using Soft Switching PWM High Frequency Inverter

  • Nam, Jing-Rak
    • Journal of information and communication convergence engineering
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    • v.6 no.3
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    • pp.305-309
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    • 2008
  • This paper presents an innovative prototype of a new conceptual electromagnetic induction eddy current based fluid heating appliance using voltage-fed quasi resonant zero voltage soft switching PWM high-frequency inverter using IGBTs, which can operate at a constant frequency variable power regulation scheme. The promising simple high efficient low noise inverter type electromagnetic induction eddy current based pipeline fluid heating appliance is proposed for saturated steam generator, superheated steam generator, hot water and hot air producer, metal catalyst heating for exhaust gas cleaning in engine. Under these technological backgrounds, a novel electromagnetic induction eddy current Dual Packs Heater(DPH) based pipeline fluid heating incorporates thin metal layer type package for continuous fluid heating appliances applying two types of voltage-fed quasi load resonant ZVS-PWM high frequency inverter. The unique features of a novel electromagnetic induction eddy current DPH based continuous pipeline fluid heating appliance is illustrated on the basis of simulation and discussed for the steady state operating characteristics and experimental results.

PDM ZCS Resonant High Frequency Inverter for Induction Heated Roller

  • Kang, Shin-Chul
    • Journal of information and communication convergence engineering
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    • v.6 no.3
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    • pp.301-304
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    • 2008
  • This paper presents a lossless inductor snubber-assisted series resonant high frequency inverter using the trench gate IGBTs for the electromagnetic induction eddy current-heated fixing roller in copy and printing machines in a new generation. This soft switching high-frequency inverter can completely achieve zero current soft switching (ZCS) commutation mode transitions and wide power regulation under its constant frequency pulse density modulation (PDM) scheme. Its transient and steady state operating principle is originally presented for a constant frequency PDM strategy under a ZCS operation, together with its output power regulation characteristics-based on the pulse density modulation. The effectiveness of this soft switching high-frequency inverter is confirmed for the fixing equipment with the induction-heated fixing roller.

Induction Heating Water Heater using Dual Mode Phase Shifted ZVS-PWM High Frequency Resonant Inverter (듀얼 모드 위상 시프트 ZVS PWM 제어 고주파 공진형 인버터를 이용한 IH 온수기)

  • Lee, Sang-Wook;Ryu, Yeoi-Joung;Woo, Kyung-Il;Park, Han-Seok
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.67 no.2
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    • pp.82-89
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    • 2018
  • This paper presents a novel prototype of dual mode control based phase shift ZVS PWM high frequency load resonant inverter with lossless snubber capacitors in addition to a single active auxiliary resonant snubber for electromagnetic induction heating(IH) foam metal based consumer fluid dual packs(DPA) heater. The operating principle in steady state and unique features of this voltage source soft switching high frequency inverter circuit topology are described in this paper. The lossless snubber and auxiliary active resonant snubber assisted constant frequency phase shift ZVS PWM high frequency load resonant inverter employing IGBT power modules actually is capable of achieving zero voltage soft commutation over a widely specified power regulation range from full power to low power. The steady state operating performances of this dual mode phase shift PWM series load resonant high frequency inverter are evaluated and discussed on the basis of simulation and experimental results for induction heated foam metal heater which is designed for compact and high efficient moving fluid heating appliance in the consumer pipeline systems.

A Study on Development of Power Supply for High Frequency Induction Heating (고주파 유도가열용 전원장치의 개발에 관한 연구)

  • Lee, Bong-Seob
    • Journal of the Korean Society of Industry Convergence
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    • v.5 no.3
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    • pp.179-186
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    • 2002
  • This paper proposed LC resonant current fed high frequency inverter for high frequency induction heating using leakage inductance of transformer and, its described operating principle. The analysis of circuit presented by using normalized parameter in considering leakage inductance of transformer and, discussed characteristic evaluation of inverter circuit in detail. The proposed inverter is operating ZVS to reduce turn-on and turn-off loss of switching devices so, raised an efficiency. And, the experimental apparatus was made on base characteristic evaluation of theoretical analysis to discuss possibility on high frequency source and confirmed a rightfulness theoretical analysis. A result of study, the proposed inverter is higher utilizing factor using on leakage inductance of transformer and show possibility, which is application on high frequency power system.

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Digital Control of Low-Frequency Square-Wave Two-Stage Electronic Ballast for HID Lamps with Resonant Ignition and High Efficiency (공진 점등 기능과 효율 향상을 위한 HID 램프의 저주파수 구형파 2단 전자식 안정기)

  • Lee, Woo-Cheol
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.27 no.2
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    • pp.69-76
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    • 2013
  • In this paper, electronic ballast using resonant inverter for HID lamp is designed and implemented. The proposed electronic ballast is used the soft switching technology ZVS(Zero Voltage Switching) to reduce turn-on and turn-off loss. The ignition of proposed electronic ballast is achieved by controlling a full bridge inverter which is consisted of LC filter for resonance. After ignition the ballast operates as a low frequency square wave inverter by controlling a full bridge inverter as a buck converter. After ignition at resonant frequency of $f_o$=160kHz, the switching frequency of a buck converter is consisted of 50kHz of high frequency and 170Hz of low frequency. This is for attenuating high frequency harmonics and avoiding acoustic resonance. The experimental results show that electronic ballast using resonant inverter is operated stably.

A Study on Prediction of Conducted EMI In PWM inverter fed Induction Motor Drive System (PWM 인버터-유도전동기 구동시스템의 전도노이즈 예측에 관한 연구)

  • 이진환;안정준;원충연;김영석;최세완
    • Proceedings of the KIPE Conference
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    • 1999.07a
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    • pp.367-372
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    • 1999
  • In this paper, an inverter fed induction motor drive system is analyed in order to predict the conducted interference. High frequency model for inverter, motor and system parasitic components are proposed. High frequency component allows time and frequency domain analysis to be performed with standard PSpice tool. The overall high frequency component and model are verified by comparing simulation and experimental result.

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