KR970014462A - Power Control Method of Induction Heating Cooker - Google Patents

Power Control Method of Induction Heating Cooker Download PDF

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Publication number
KR970014462A
KR970014462A KR1019950024117A KR19950024117A KR970014462A KR 970014462 A KR970014462 A KR 970014462A KR 1019950024117 A KR1019950024117 A KR 1019950024117A KR 19950024117 A KR19950024117 A KR 19950024117A KR 970014462 A KR970014462 A KR 970014462A
Authority
KR
South Korea
Prior art keywords
power control
power
control
induction heating
heating cooker
Prior art date
Application number
KR1019950024117A
Other languages
Korean (ko)
Inventor
박병욱
Original Assignee
구자홍
엘지전자 주식회사
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 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019950024117A priority Critical patent/KR970014462A/en
Publication of KR970014462A publication Critical patent/KR970014462A/en

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  • General Induction Heating (AREA)

Abstract

본 발명은 유도가열조리기의 전력 제어방법에 관한 것으로, 종래에는 전력 제어를 비교회로를 이용하여 수행함으로써 한정된 전력 제어와 전력 제어단계가 증가할 경우엔 스위징소자가 증가해야 함에 따라 원가 상승의 문제와 입력 전원의 변동등의 불안정 요인에 대해서 전력 제어가 불균일 해지는 등의 문제점이 있다. 따라서, 본 발명은 마이크로 프로세서 자체의 타이머를 이용하여 PWM 펄스폭을 조정하여 전력 제어를 행하도록 함으로써 별도의 비교회로를 사용하지 않아도 원하는 단계의 전력 제어가 가능함에 따라 원가 상승의 부담을 해소하고, 입력 전원의 변동에 대해서도 즉시 전력 제어의 증감을 제어 할 수 있어 전력 제어의 안정성을 도모할 수 있도록 한다.The present invention relates to a power control method of an induction heating cooker, and in the related art, when the limited power control and the power control step are increased by performing power control using a comparison circuit, the problem of cost increase as the number of switching elements increases. There is a problem such as uneven power control against instability factors such as fluctuations in and input power. Therefore, the present invention is to control the PWM pulse width by using the timer of the microprocessor itself to perform power control to eliminate the burden of cost increase as it is possible to control the power of the desired stage without using a separate comparison circuit, It is possible to control the increase or decrease of the power control immediately even with the fluctuation of the input power, so that the power control can be stabilized.

Description

유도가열조리기의 전력 제어방법Power Control Method of Induction Heating Cooker

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

제2도는 제1도에 의한 입출력 파형도,2 is an input / output waveform diagram according to FIG.

제3도는 본 발명 유도가열조리기의 전력 제어장치 회로도,3 is a circuit diagram of a power control device of the induction heating cooker of the present invention;

제4도는 본 발명 유도가열조리기의 전력 제어방법에 대한 동작흐름도.Figure 4 is a flow chart for the power control method of the induction heating cooker of the present invention.

Claims (2)

부하에 공급되는 전류 및 입력전압을 각각 검지하여 전력을 계산하는 제1단계와, 상기 제1단계에서 계산된 현전력과 목표전력을 비교하는 제2단계와, 상기 제2단계에서 비교결과 현전력이 목표전력보다 작으면 PWM펄스의"하이(H)" 상태시간을 증가시키고 크면 감소시키는 제3단계와, 상기 제2단계에서 현전력과 목표전력이 같으면 PWM펄스의 "하이" 상태시간과 "로우"; 상태시간을 설정하고 그 설정된 시간이 완료되면 종료하는 제4단계로 이루어진 것을 특징으로 하는 유도가열조리기의 전력 제어방법.A first step of calculating power by detecting a current and an input voltage supplied to a load, a second step of comparing the present power calculated in the first step with a target power, and the result of the comparison in the second step If the target power is smaller than the target power, the third step of increasing and decreasing the "H" state time of the PWM pulse; and if the present power and the target power are the same in the second step, the "high" state time of the PWM pulse is " low"; And a fourth step of setting a state time and ending when the set time is completed. 제1항에 있어서, PWM펄스의 상태시간 설정은 마이크로 프로세서 자체의 타이머를 이용하는 것을 특징으로 하는 유도가열조리기의 전력 제어방법 .The power control method of an induction heating cooker according to claim 1, wherein the state time setting of the PWM pulses uses a timer of the microprocessor itself. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950024117A 1995-08-04 1995-08-04 Power Control Method of Induction Heating Cooker KR970014462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950024117A KR970014462A (en) 1995-08-04 1995-08-04 Power Control Method of Induction Heating Cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950024117A KR970014462A (en) 1995-08-04 1995-08-04 Power Control Method of Induction Heating Cooker

Publications (1)

Publication Number Publication Date
KR970014462A true KR970014462A (en) 1997-03-29

Family

ID=66595523

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950024117A KR970014462A (en) 1995-08-04 1995-08-04 Power Control Method of Induction Heating Cooker

Country Status (1)

Country Link
KR (1) KR970014462A (en)

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