KR970058362A - Dual Half-Bridge Electromagnetic Induction Heating Cooker for Multi-Output Control - Google Patents

Dual Half-Bridge Electromagnetic Induction Heating Cooker for Multi-Output Control Download PDF

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Publication number
KR970058362A
KR970058362A KR1019950059759A KR19950059759A KR970058362A KR 970058362 A KR970058362 A KR 970058362A KR 1019950059759 A KR1019950059759 A KR 1019950059759A KR 19950059759 A KR19950059759 A KR 19950059759A KR 970058362 A KR970058362 A KR 970058362A
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KR
South Korea
Prior art keywords
electromagnetic induction
induction heating
output control
bridge
heating cooker
Prior art date
Application number
KR1019950059759A
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Korean (ko)
Other versions
KR0179536B1 (en
Inventor
정용채
노희석
Original Assignee
구자홍
Lg 전자 주식회사
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Application filed by 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019950059759A priority Critical patent/KR0179536B1/en
Publication of KR970058362A publication Critical patent/KR970058362A/en
Application granted granted Critical
Publication of KR0179536B1 publication Critical patent/KR0179536B1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/04—Sources of current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them

Abstract

본 발명은 전자 유도가열 조리기 있어, 하나의 인버터 회로로서 두개의 워킹 코일을 동작시킬 수 있도록 하여 회로의 구성을 최소화하고, 두개의 워킹 코일의 출력제어를 실행하게 될때 발생하게 되는 간섭음을 방지하며, 또한 스위칭 손실을 줄일 수 있도록 한 다출력 제어를 위한 듀얼 할프 브리지(Dual Half-Bridge)형 전자유도 가열 조리 장치에 관한 것이다.The present invention is an electromagnetic induction heating cooker, it is possible to operate two working coils as one inverter circuit to minimize the configuration of the circuit, and to prevent the interference sound generated when performing the output control of the two working coils The present invention also relates to a dual half-bridge type electromagnetic induction heating cooking device for multi-output control to reduce switching loss.

종래 전자유도 가열 조리 장치에 있어 인접한 워킹 코일 사이에 동작주파수의 차이에 의한 간섭음이 발생하게 되어 워킹 코일의 정확한 출력제어가 이루어지지 않게 되며, 또한 각각의 구성된 인버터만큼 정류수단과 입력단의 정류수단으로부터의 전압을 평활 및 필터링하게 되는 L,C필터를 구성하여야 만 하므로서, 전체 회로가 복잡하게 되며, 기구구성에의 경제성이 결여되는 문제점이 발생하게 된다.In the conventional electromagnetic induction heating cooking apparatus, interference noises are generated between the working coils adjacent to each other, so that accurate output control of the working coils is not performed. Since the L and C filters for smoothing and filtering the voltage from the filter must be configured, the entire circuit becomes complicated, and there is a problem in that the economy of the device configuration is lacking.

본 발명은 다출력 제어를 위한 전자유도 가열 조리 장치에 있어서 발생되는 상기와 같은 문제점을 해결하기 위하여 할프 브리지형 전자유도 가열 조리기를 제안하는 바, 두개의 할프 브리지형 인버터를 입력측에 병렬구성하여 하나의 인버터 회로를 구성하고, 각각의 서로 다른 DC전원 공급원으로부터 전원을 인가받아 구성된 각각의 워킹 코일을 동작시키도록 하므로서, 회로구성을 최소화하여 하나의 인버터로서, 두개의 가열판을 동작시킬 수 있도록 하고, 시분할 제어를 통하여 각각의 워킹 코일의 출력제어를 이루도록 하므로서, 가열판간의 간섭음의 발생을 방지할 수 있게 되는 것이다.The present invention proposes a half-bridge type electromagnetic induction heating cooker in order to solve the above problems generated in the electromagnetic induction heating cooking apparatus for multi-output control, by forming two half-bridge inverters in parallel on the input side The inverter circuit is configured to operate each working coil configured by receiving power from each different DC power source, thereby minimizing the circuit configuration, and operating two heating plates as one inverter. By controlling the output of each working coil through time division control, it is possible to prevent the occurrence of interference sound between the heating plates.

Description

다출력 제어를 위한 듀얼 할프 브리지(Dual Half-Bridge)형 전자유도 가열 조리 장치Dual Half-Bridge Electromagnetic Induction Heating Cooker for Multi-Output Control

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명 다출력 제어를 위한 듀얼 할프 브리지(Dual Half-Bridge)형 전자유도 가열 조리 장치의 구성을 보인 회로도,2 is a circuit diagram showing the configuration of a dual half-bridge type electromagnetic induction heating cooking apparatus for multi-output control of the present invention;

제3도의 (가)~(다)는 본 발명에 있어서, 워킹 코일(L11)이 동작하게 될 경우의 스위칭 소자의 온/오프 스위칭에 따라 변화되는 워킹 코일(L11)의 전류 파형도.(A) to (c) of FIG. 3 are diagrams of current waveforms of the working coil (L11) changed according to on / off switching of the switching element when the working coil (L11) is operated in the present invention.

Claims (2)

별도의 스위칭 전원을 입력받아 온/오프 스위칭하게 되는 트랜지스터(Q11,Q12)와, 상기 트랜지스터(Q11,Q12)에 역병렬 접속되어지는 다이오드(D11,D12)와, 상기 트랜지스터(Q11,Q12)에 병렬접속되어지는 보조 공진용 콘덴서(C11,C12)와, 상기 트랜지스터(Q12)에 병렬 접속되어 공진하는 콘덴서(C13) 및 워킹 코일(L11)의 구성요소를 포함하는 할프 브리지형 인버터를 구성하며, 상기 구성된 할프 브리지형 인버터를 직렬로 연결하여 입력측에 병렬로 접속구성하여 하나의 인버터 회로를 구성하고, 구성된 각각의 인버터에 각각의 서로 다른 전원부(V1,V2)로부터 전원이 공급되어지도록 하는 것을 특징으로 하는 다출력 제어를 위한 듀얼 할프 브리지(Dual Half-Bridge)형 전자유도 가열 조리 장치.The transistors Q11 and Q12 that are switched on / off by receiving a separate switching power source, the diodes D11 and D12 which are connected in anti-parallel to the transistors Q11 and Q12, and the transistors Q11 and Q12. And a half-bridge type inverter including components of the auxiliary resonance capacitors C11 and C12 connected in parallel, and the components of the capacitor C13 and the working coil L11 connected in parallel to the transistor Q12 for resonance. The configured half-bridge inverters are connected in series and connected in parallel to the input side to configure one inverter circuit, and power is supplied to each of the configured inverters from each of the different power supply units V1 and V2. Dual Half-Bridge Electromagnetic Induction Heating Cooker for Multi-Output Control. 제1항에 있어서, 상기 구성된 각각의 할프 브리지형 인버터의 출력제어는 시분할 제어를 통하여 이루어지는 것을 특징으로 하는 다출력 제어를 위한 듀얼 할프 브리지(Dual Half-Bridge)형 전자유도 가열 조리 장치.The dual half-bridge type electromagnetic induction heating cooking device according to claim 1, wherein the output control of each of the configured half-bridge inverters is performed through time division control. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950059759A 1995-12-27 1995-12-27 Dual half bridge type induction heating cooker KR0179536B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950059759A KR0179536B1 (en) 1995-12-27 1995-12-27 Dual half bridge type induction heating cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950059759A KR0179536B1 (en) 1995-12-27 1995-12-27 Dual half bridge type induction heating cooker

Publications (2)

Publication Number Publication Date
KR970058362A true KR970058362A (en) 1997-07-31
KR0179536B1 KR0179536B1 (en) 1999-05-15

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KR1019950059759A KR0179536B1 (en) 1995-12-27 1995-12-27 Dual half bridge type induction heating cooker

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040005292A (en) * 2002-07-09 2004-01-16 엘지전자 주식회사 Driving apparatus for microwave oven

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040005292A (en) * 2002-07-09 2004-01-16 엘지전자 주식회사 Driving apparatus for microwave oven

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