KR960028699A - Output Control Circuit of Resonant Inverter - Google Patents

Output Control Circuit of Resonant Inverter Download PDF

Info

Publication number
KR960028699A
KR960028699A KR1019940040471A KR19940040471A KR960028699A KR 960028699 A KR960028699 A KR 960028699A KR 1019940040471 A KR1019940040471 A KR 1019940040471A KR 19940040471 A KR19940040471 A KR 19940040471A KR 960028699 A KR960028699 A KR 960028699A
Authority
KR
South Korea
Prior art keywords
switching
setting
control circuit
heating
present
Prior art date
Application number
KR1019940040471A
Other languages
Korean (ko)
Other versions
KR100301464B1 (en
Inventor
권경안
Original Assignee
이헌조
주식회사 금성사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019940040471A priority Critical patent/KR100301464B1/en
Publication of KR960028699A publication Critical patent/KR960028699A/en
Application granted granted Critical
Publication of KR100301464B1 publication Critical patent/KR100301464B1/en

Links

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inverter Devices (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

본 발명은 공진형 인버터의 출력 제어 회로에 관한 것으로, 종래에는 스위칭 소자의 통전 시간을 제어하여 전력을 제어하고 영전압 스위칭 실현을 위하여 스위칭 소자 및 다이오드의 오프구간을 공진 상수에 의해 결정하므로 전력 제어시 주파수의 변화가 발생하는 문제점이 있었다. 이러한 점을 개선하기 위하여 본 발명은 스위칭 전압이 영전압 및 전원 전압과 교차하는 시점을 검출하여 그 시점을 기준으로 스위칭듀티비를 조정하므로써 공진 주파수의 변화를 방지하도록 구성한다. 따라서, 본 발명은 복수개의 인버터가 인접한 경우 출력 레벨이 상이하게 되어도 동작 주파수의 차이가 발생하지 않으므로 가청 소음이나 조명 기기등에서 프리커링(flicking)현상과 같은 전자기 간섭이 발생하지 않게 된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output control circuit of a resonant inverter. In the related art, power is controlled by controlling an energization time of a switching element, and power control is performed by determining an off period of the switching element and a diode by a resonance constant to achieve zero voltage switching. There was a problem that a change in time frequency occurs. In order to improve this point, the present invention is configured to detect a time point at which the switching voltage intersects the zero voltage and the power supply voltage, and to adjust the switching duty ratio based on the time point to prevent the change of the resonance frequency. Accordingly, the present invention does not generate a difference in operating frequency even when the output levels are different when a plurality of inverters are adjacent to each other, so that electromagnetic interference such as flicking phenomenon does not occur in audible noise or lighting equipment.

Description

공진형 인버터의 출력 제어회로Output Control Circuit of Resonant Inverter

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

제3도는 본 발명 공진형 인버터의 출력 제어회로도, 제4도는 제3도에 있어서, 동작 파형도, 제5도는 제3도에 있어서, 모드에 따른 회로의 동작 상태 예시도.3 is an output control circuit diagram of the resonant inverter of the present invention, FIG. 4 is an operating waveform diagram in FIG. 3, and FIG. 5 is an exemplary diagram showing an operation state of a circuit according to a mode.

Claims (2)

전원 전압의 스위칭에 의해 유도 기전력이 발생되어 피가열체를 가열 하는 가열수단과, 이 가열수단의 유도 기전력으로부터 동기를 검출하는 동기 검출 수단과, 스위칭 온 타임을 설정하는 출력 설정 수단과, 상기 동기 검출수단의 동기를 검출하여 상기 출력 설정수단의 스위칭 온 타임에 의한 듀티비를 조정하는 듀티 설정 수단과, 이 듀티설정 수단의 듀티비 설정에 따른 구동신호를 출력하는 제1구동 수단과, 이 제1구동수단의 구동 신호에 따라 상기 가열 수단을 공진시키는 제1스위칭 수단과, 상기 듀티설정 수단의 듀티비 설정에 따른 구동신호를 출력하는 제2구동 수단과, 이 제2구동수단의 구동신호에 따라 상기 가열수단의 공진 주기를 일정하게 제어하는 제2스위칭 수단으로 구성한 것을 특징으로 하는 공진형 인버터의 출력 제어회로.Induction electromotive force is generated by switching the power supply voltage, and heating means for heating the heated object, synchronization detection means for detecting synchronization from the induced electromotive force of the heating means, output setting means for setting a switching on time, and the synchronization A duty setting means for detecting synchronization of the detection means and adjusting a duty ratio according to the switching on time of the output setting means, first driving means for outputting a drive signal according to the duty ratio setting of the duty setting means, and First switching means for resonating the heating means in accordance with a drive signal of the first drive means, second drive means for outputting a drive signal according to the duty ratio setting of the duty setting means, and a drive signal of the second drive means. And a second switching means for constantly controlling the resonant period of the heating means. 제1항에 있어서, 제2스위칭 수단은 전압 (E)에 접속된 다이오드(D2)에 스위칭 소자(SW2)를 직렬 접속하여 가열수단에 병렬 접속하여 구성한 것을 특징으로 하는 공진형 인버터의 출력 제어회로.The output control circuit of a resonant inverter according to claim 1, wherein the second switching means is configured by connecting a switching element (SW2) in series to a diode (D2) connected to a voltage (E) and connecting in parallel to a heating means. .
KR1019940040471A 1994-12-31 1994-12-31 Circuit for controlling output of resonance-type inverter KR100301464B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940040471A KR100301464B1 (en) 1994-12-31 1994-12-31 Circuit for controlling output of resonance-type inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940040471A KR100301464B1 (en) 1994-12-31 1994-12-31 Circuit for controlling output of resonance-type inverter

Publications (2)

Publication Number Publication Date
KR960028699A true KR960028699A (en) 1996-07-22
KR100301464B1 KR100301464B1 (en) 2001-10-22

Family

ID=37529113

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940040471A KR100301464B1 (en) 1994-12-31 1994-12-31 Circuit for controlling output of resonance-type inverter

Country Status (1)

Country Link
KR (1) KR100301464B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10813177B2 (en) 2016-09-01 2020-10-20 Samsung Electronics Co., Ltd. Cooking apparatus and method of controlling the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101000503B1 (en) 2009-07-21 2010-12-14 현대중공업 주식회사 Switching frequency variableness method of electric power inverter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2512531B2 (en) * 1988-06-09 1996-07-03 松下電器産業株式会社 Induction heating cooker
EP0540094A1 (en) * 1991-10-30 1993-05-05 Laboratoires D'electronique Philips S.A.S. Multidirectional control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10813177B2 (en) 2016-09-01 2020-10-20 Samsung Electronics Co., Ltd. Cooking apparatus and method of controlling the same

Also Published As

Publication number Publication date
KR100301464B1 (en) 2001-10-22

Similar Documents

Publication Publication Date Title
KR920017326A (en) Drive controller of non-commutator motor
KR900007383B1 (en) Power control circuit and method for 4-burner of electronic inductive cooker
US5994883A (en) Alternating current power control device
KR910004997A (en) Microwave
WO2001052603A1 (en) Induction heating cooker
KR900001270A (en) Cooker
US5001318A (en) High frequency heating apparatus with abnormal condition detection
JPH09185986A (en) Electromagnetic cooker
KR100836683B1 (en) Apparatus for controlling igbt selection of synchronous induction heating circuit
KR960028699A (en) Output Control Circuit of Resonant Inverter
KR100784313B1 (en) Apparatus for controlling induction heating circuit
US4639845A (en) Voltage inverter
JP2512531B2 (en) Induction heating cooker
KR970064514A (en) Dual half-bridge type electromagnetic induction heating apparatus and control method
JP2001237058A (en) Induction heating cooker
KR100904236B1 (en) Apparatus for controlling inverter circuit guaranteeing minimum switching off time
JPH0823694A (en) Sped control device of dc brushless motor
JPH08288059A (en) Microwave oven
KR0116494Y1 (en) Isolation circuit of microwave oven
ES2050320T3 (en) ARRANGEMENT FOR THE CONTROLLED OPERATION OF A CONSUMER.
JP3394273B2 (en) Induction heating cooker
JPH10208575A (en) Relay controlling method
KR0182514B1 (en) Microwave oven operating apparatus
KR0120227Y1 (en) Zero crossing control circuit for dielectric heating cooker
KR960020617A (en) High frequency heater

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090529

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee