KR0164516B1 - Heater control circuit - Google Patents
Heater control circuit Download PDFInfo
- Publication number
- KR0164516B1 KR0164516B1 KR1019950048035A KR19950048035A KR0164516B1 KR 0164516 B1 KR0164516 B1 KR 0164516B1 KR 1019950048035 A KR1019950048035 A KR 1019950048035A KR 19950048035 A KR19950048035 A KR 19950048035A KR 0164516 B1 KR0164516 B1 KR 0164516B1
- Authority
- KR
- South Korea
- Prior art keywords
- control circuit
- heater
- heater control
- rectifying
- power supply
- Prior art date
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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
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- 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
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/07—Heating plates with temperature control means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Cookers (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
본 발명은 히터 제어회로를 공개한다. 그 회로는 교류전원을 정류하여 직류전원을 발생하기 위한 정류수단, 상기 정류수단에 연결되고 유도 가열 전원전압을 발생하기 위한 유도 가열 전원 공급수단, 상기 정류수단의 제1출력단자에 연결된 히터, 상기 히터와 상기 정류수단의 제2출력단자인 접지전압에 연결된 스위칭 수단, 및 상기 스위칭 수단을 제어하기 위한 히터 제어수단으로 구성되어 있다. 따라서, 회로구성이 간단해 진다.The present invention discloses a heater control circuit. The circuit includes rectifying means for rectifying AC power to generate DC power, induction heating power supply means connected to the rectifying means and generating induction heating power supply voltage, a heater connected to the first output terminal of the rectifying means, And a switching means connected to a heater and a ground voltage which is a second output terminal of the rectifying means, and a heater control means for controlling the switching means. Therefore, the circuit configuration is simplified.
Description
제1도는 종래의 유도 가열 전기밥솥용 히터 제어회로를 나타내는 것이다.1 shows a conventional heater control circuit for an induction heating rice cooker.
제2도는 본 발명의 히터 제어회로를 나타낸 것이다.2 shows a heater control circuit of the present invention.
본 발명은 히터 제어회로에 관한 것으로, 특히 유도 가열 전기밥솥용 히터 제어회로에 관한 것이다.The present invention relates to a heater control circuit, and more particularly to a heater control circuit for an induction heating rice cooker.
제1도는 종래의 유도 가열 전기밥솥용 히터 제어회로를 나타내는 것으로, AC전원(1), 노이즈 필터(10), 정류기(12), 유도 가열 전원단(14), 히터(16), 트라이악(Triac), 전원(R), 직류전원회로(Vcc), 포토 커플러(18), 제어회로(20), 및 마이크로 컨트롤러(22)의 구성되어 있다.1 shows a conventional heater control circuit for an induction heating rice cooker, and includes an AC power supply 1, a noise filter 10, a rectifier 12, an induction heating power supply stage 14, a heater 16, and a triac ( Triac, a power supply R, a DC power supply circuit Vcc, a photo coupler 18, a control circuit 20, and a microcontroller 22 are configured.
종래의 유도 가열 전기밥솥용 히터 제어회로는 노이즈 필터(10)와 정류기(12) 사이의 AC전원을 이용해서 히터를 제어함으로써 정류기(12) 앞단의 교류 전원단의 정류기(12) 뒷단의 직류 전원단을 절연해야만 했다. 따라서, 정류기(12) 앞단의 교류 전원단과 정류기(12) 뒷단의 직류 전원단을 절연하기 위해서 절연회로인 포토 커플러(18)가 필요하게 되고, 포토 커플러(18)의 전원단(Vcc)이 별도로 필요하게 되고, 정류기(18) 앞단의 제어회로인 사이리스터(TH1), 저항(R)등이 필요하고, 또한, 정류기(18) 뒷단의 제어회로(20)가 역시 필요하게 된다. 따라서, 히터 제어회로로 복잡하고 회로 구성요소가 많아짐으로 해서 경제적이지 못하다는 단점이 있었다.The conventional heater control circuit for an induction heating rice cooker controls the heater by using an AC power source between the noise filter 10 and the rectifier 12, so that the DC power supply of the rectifier 12 at the rear end of the rectifier 12 at the front end of the rectifier 12 is controlled. The stage had to be insulated. Therefore, in order to insulate the AC power stage in front of the rectifier 12 and the DC power stage in the rear of the rectifier 12, a photo coupler 18 which is an insulation circuit is required, and the power supply terminal Vcc of the photo coupler 18 is separately provided. The thyristor TH1, the resistor R, and the like, which are the control circuits in front of the rectifier 18, are required, and the control circuit 20 behind the rectifier 18 is also required. Therefore, the heater control circuit has a disadvantage that it is not economical because of the complexity and the number of circuit components.
본 발명의 목적은 회로 구성이 간단한 히터 제어회로를 제공하는데 있다.An object of the present invention is to provide a heater control circuit with a simple circuit configuration.
교류전원을 정류하여 직류전원을 발생하기 위한 정류수단, 상기 정류수단에 연결되도 유도 가열 전원전압을 발생하기 위한 유도 가열 전원 공급수단, 상기 정류수단의 제1출력단자에 연결된 히터, 상기 히터와 상기 정류수단의 제2출력단자인 접지전압에 연결된 스위칭 수단, 및 상기 스위칭 수단을 제어하기 위한 히터 제어수단을 구비한 것을 특징으로 한다.Rectification means for rectifying AC power to generate DC power, induction heating power supply means for generating an induction heating power supply voltage even when connected to the rectifying means, a heater connected to a first output terminal of the rectifying means, the heater and the And switching means connected to a ground voltage as a second output terminal of the rectifying means, and heater control means for controlling the switching means.
첨부된 도면을 참고로 하여 본 발명의 히터 제어회로를 설명하면 다음과 같다.Referring to the accompanying drawings, the heater control circuit of the present invention will be described.
제2도는 본 발명의 히터 제어회로를 나타내는 것으로, AC전원(1), 노이즈 필더(10), 정류기(12), 유도 가열 전원단(14), 히터(16), 스위치(30), 제어회로(20), 및 마이크로 컨트롤러(22)로 구성되어 있다.2 shows a heater control circuit of the present invention, in which the AC power supply 1, the noise filter 10, the rectifier 12, the induction heating power supply stage 14, the heater 16, the switch 30, the control circuit And a microcontroller 22.
AC전원(1)으로 부터 인가되는 전압은 노이즈 필터(10)를 거쳐 AC전원단 노이즈가 줄어들게 된다. 다음 정류기(12)를 거쳐 필터(100에 의해서 필터링된 교류전압은 직류전원이 된다. 이 직류전원은 유도 가열 전원단(14)에 인가되어 고주파 자계 에너지가 발생된다. 히터(16)를 제어하기 위한 히터 제어부는 정류기(12)와 유도 가열 전원단(14) 사이에 연결되어 있다. 따라서, 직류 전원을 전원으로 해서 히터(16)는 파워 트랜지스터 또는 MOS-FET 등을 이용한 스위치(30)의 동작으로 인해 열에너지를 발생한다. 또한, 이 스위치(30)는 제어회로(20)에 의해 동작제어되고, 이 제어회로(20)는 마이크로 컨트롤러(22)에 의해서 동작제어되고, 이 제어회로(20)는 마이크로 컨트롤러(22)에 의해서 동작제어된다.The voltage applied from the AC power source 1 passes through the noise filter 10 to reduce the AC power stage noise. Next, the AC voltage filtered by the filter 100 through the rectifier 12 becomes a DC power source, which is applied to the induction heating power supply stage 14 to generate high frequency magnetic field energy. The heater control unit is connected between the rectifier 12 and the induction heating power supply stage 14. Therefore, the heater 16 operates the switch 30 using a power transistor, a MOS-FET, or the like as a DC power source. In addition, the switch 30 is operation controlled by the control circuit 20, the control circuit 20 is operation controlled by the microcontroller 22, the control circuit 20 Is controlled by the microcontroller 22.
따라서, 본 발명의 히터 제어회로는 정류기의 유도 가열 전원단 사이의 직류전원을 사용하기 때문에 하나의 전원단과 하나의 제어회로의 히터를 제어할 수 있음으로써 회로 구성이 간단해지고, 따라서, 매우 경제적으로 회로가 구성될 수 있다.Therefore, since the heater control circuit of the present invention uses a DC power source between the induction heating power stages of the rectifier, it is possible to control the heaters of one power stage and one control circuit, thereby simplifying the circuit configuration and, therefore, very economically. Circuitry can be configured.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950048035A KR0164516B1 (en) | 1995-12-08 | 1995-12-08 | Heater control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950048035A KR0164516B1 (en) | 1995-12-08 | 1995-12-08 | Heater control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970058328A KR970058328A (en) | 1997-07-31 |
| KR0164516B1 true KR0164516B1 (en) | 1999-04-15 |
Family
ID=19438802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950048035A KR0164516B1 (en) | 1995-12-08 | 1995-12-08 | Heater control circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0164516B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100437814B1 (en) * | 2002-02-19 | 2004-06-30 | 엘지전자 주식회사 | Stabilizing Circuit of the Electric Iron Pot |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030018252A (en) * | 2001-08-27 | 2003-03-06 | 엘지전자 주식회사 | Apparatus for heater control |
| KR100807689B1 (en) * | 2002-05-18 | 2008-02-28 | 주식회사 포스코 | Ferro alloy outflow prevention device of feeder in weighing hopper |
-
1995
- 1995-12-08 KR KR1019950048035A patent/KR0164516B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100437814B1 (en) * | 2002-02-19 | 2004-06-30 | 엘지전자 주식회사 | Stabilizing Circuit of the Electric Iron Pot |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970058328A (en) | 1997-07-31 |
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