KR890007224Y1 - Power circuit of electric range - Google Patents
Power circuit of electric range Download PDFInfo
- Publication number
- KR890007224Y1 KR890007224Y1 KR2019870004395U KR870004395U KR890007224Y1 KR 890007224 Y1 KR890007224 Y1 KR 890007224Y1 KR 2019870004395 U KR2019870004395 U KR 2019870004395U KR 870004395 U KR870004395 U KR 870004395U KR 890007224 Y1 KR890007224 Y1 KR 890007224Y1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- power failure
- relay
- transistor
- microcomputer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안에 따른 회로도.1 is a circuit diagram according to the present invention.
*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 트랜스퍼머 2 : 정류회로1: Transformer 2: Rectifier Circuit
3 : 정전압회로 4 : 마이크로 컴퓨터3: constant voltage circuit 4: microcomputer
5 : 순간 정전 감지회로 6 : 드라이브 회로5 instantaneous power failure detection circuit 6 drive circuit
7 : 릴레이 Q1~Q3: 트랜지스터7: relay Q 1 to Q 3 : transistor
IC1: 비교기 R~R : 저항IC 1 : Comparator R ~ R: Resistance
D1~D3: 다이오드 C1~C2: 콘덴서D 1 to D 3 : diodes C 1 to C 2 : condenser
SW1: 스위치 L1: 코일SW 1 : Switch L 1 : Coil
본 고안은 전자레이지에 있어 순간 정전 보상회로에 관한 것으로, 특히 순간 정전이 발생했을때 수행되고있던 마이크로 컴퓨더의 조리 데이타를 보존시키기 위한 전원을 연장 공급하기 위해 순간 정전시 전력 소모원인 릴레이를 자동적으로 오프 시키도록한 전자 레인지의 순간 정전보상 회로에 관한 것이다.The present invention relates to an instantaneous power failure compensation circuit in an electronic range, and in particular, to automatically supply a power supply for preserving the cooking data of a microcomputer that is being performed when a power failure occurs, a relay, which is a power consumption source during a power failure, is automatically supplied. The instantaneous power failure compensation circuit of the microwave oven to be turned off.
종래의 전자레인지는 순간 정전에 따른 보상회로가 없어서, 순간 정전이 발생했을 경우에는 릴레이의 잔류 전력소모로 말미암아 마이크로 컴퓨터에 입력되었던 조리 테이타가 소거되기 때문에 사용자로 하여금 불편함을 가중시키고 또한 제품의 신뢰도를 저하시키는 등 여러 문제점이 있었다.Conventional microwave ovens do not have a compensation circuit due to a momentary power failure, and when a power failure occurs, the cooking data input to the microcomputer is erased due to the residual power consumption of the relay, which causes inconvenience to the user. There are various problems such as lowering the reliability.
따라서 본 고안은 상기한 문제점을 개선시키고자 안출한 것으로, 순간 정전 감지회로를 부가하여 이의 출력으로 드라이브 회로를 제어함에 따라 릴레이를 온, 오프하도록 구성했기때문에 가능한 긴 시간동안 마이크로 컴퓨터에 전원을 공급할 수 있어 순간 정전보상 시간을 최대한으로 길게할 수 있고, 또한 순간 정전에 따른 조리대 데이타와 훼손을 방지할수 있는 순간 정전 보상회로를 제공함에 목적이 있다.Therefore, the present invention has been made to improve the above-mentioned problems, and it is possible to supply power to the microcomputer for as long as possible because it is configured to add a momentary power failure detection circuit and control the drive circuit with its output. The purpose of the present invention is to provide an instantaneous power failure compensation circuit capable of lengthening the momentary power failure compensation time as much as possible, and also preventing countertop data and damage caused by the momentary power failure.
상기한 목적으로 안출한 본 고안의 회로 구성을 제1도에 따라 상세히 설명하면 다음과 같다.Referring to Figure 1 in detail the circuit configuration of the present invention devised for the above purpose is as follows.
공급전원(VAC)단은 트랜스퍼머(1)를 거쳐 다이오드(D1,D2) 와 콘덴서(C1)의 정류회로(2)에 연결하고, 이의 출력단에 트랜지스터(Q3)와 저항(R9)및 재너다이오드(ZD1)로 구성된 정전압회로(3)와 순간 정전 감지회로(5)의 저항(R1)에 각각 연결하여 저항(R1)에 비교기(IC1)의입력단과 접지접속된 저항(R2)을 연결한다.The power supply (VAC) terminal is connected to the rectifier circuit 2 of the diodes D 1 and D 2 and the capacitor C 1 via a transformer 1 , and at the output terminal thereof, a transistor Q 3 and a resistor R 9 ) and resistor R 1 of the constant voltage circuit 3 composed of the zener diode ZD 1 and the instantaneous blackout detection circuit 5, respectively, to the resistor R 1 of the comparator IC 1 . Connect the input terminal and the grounded resistor (R 2 ).
한편 정전압회로(3)의 출력단은 접지접속된 콘덴서(C2)와 마이크로 컴퓨터(4)의 전원단(VSS)에 각각 연결함과 동시에 순간정전 감지회로(5)의 직렬연결한 저항(R3,R4)에 연결하여, 저항(R3,R4)의 연결점에 비교기(IC1)의 0입력단을 연결한다.The output terminal of the constant voltage circuit 3 is connected to the grounded capacitor C 2 and the power supply terminal VSS of the microcomputer 4, and at the same time, the resistor R 3 connected in series with the instantaneous blackout detection circuit 5 is connected. , R 4 ), and the 0 input terminal of the comparator (IC 1 ) to the connection point of the resistors (R 3 , R 4 ).
따라서 순간정전 감지회로(5)의 출력단은 드라이브 회로(6)의 저항(R5)을 통해 트랜지스터(Q2)의 에미터를 연결한다.Therefore, the output terminal of the instantaneous blackout detection circuit 5 connects the emitter of the transistor Q 2 through the resistor R 5 of the drive circuit 6.
또한 트랜지스터(Q1)의 콜렉터에는 스위치(SW1)와 코일(L1) 및 다이오드(D3)로 구성된 릴레이(7)를 연결하고, 이의 베이스에는 마이크로 컴퓨터(4)의 신호 출력단(O1)을 연결한다.In addition, a relay 7 composed of a switch SW 1 , a coil L 1 , and a diode D 3 is connected to a collector of the transistor Q 1 , and a signal output terminal O 1 of the microcomputer 4 is connected to a base thereof. ).
이와같이 구성된 회로의 동작 및 작용효과를 설명하면 다음과 같다.Referring to the operation and operation of the circuit configured as described above are as follows.
정상상태에서는 트랜스퍼머(1)를 통한 전원이 정류회로(2)를 거쳐 정류된 다음 정전압회로(3)를 통해 마이크로 컴퓨터(4)의 전원단자(VCC)에 공급되는 한편, 정전압회로(3)의 입력전압과 출력전압이 순간정전 감지회로(5)의 저항(R1,R2)과 저항(R3,R4)으로 각각 분압되어 비교기(IC1)의와입력단으로 각각 인가된다.In the steady state, power through the transformer 1 is rectified through the rectifying circuit 2 and then supplied to the power supply terminal VCC of the microcomputer 4 through the constant voltage circuit 3, while the constant voltage circuit 3 of the input voltage and the output voltage is divided by respective resistors (R 1, R 2) and the resistor (R 3, R 4) of the voltage dip detection circuit (5) of the comparator (IC 1) Wow Each is applied to the input terminal.
따라서 정상상태에서는 저항(R1,R2)의 분압전압이 저항(R3,R4)의 분압전압보다 높으므로 순간정전 감지회로(5)의 출력은 하이상태로 드라이브회로(6)의 트랜지스터(Q2)를 도통시키므로 릴레이(7)는 트랜지스터(Q1)의 베이스에 연결된 마이크로 컴퓨터(4)의 신호 출력단(O1)에 의해 제어된다.Therefore, in the steady state, the divided voltages of the resistors R 1 and R 2 are higher than the divided voltages of the resistors R 3 and R 4 , so that the output of the instantaneous blackout detection circuit 5 is high and the transistor of the drive circuit 6 is high. Since (Q 2 ) is conducted, the relay 7 is controlled by the signal output terminal O 1 of the microcomputer 4 connected to the base of the transistor Q 1 .
이와같이 동작하던중 순간 정전이 발생했을 경우는 순간정전 감지회로(5)의 저항(R1,R2)의 분압전압보다 저항(R3,R4)의 분압전압이 높아져 순간 정전감지회로(5)의 출력전압은 로우 상태가 된다.If a momentary power failure occurs during this operation, the voltage dividing voltage of the resistors R 3 and R 4 is higher than the voltage dividing voltages of the resistors R 1 and R 2 of the instantaneous blackout detection circuit 5 and thus the instantaneous blackout detecting circuit 5 ) Output voltage goes low.
그러므로 드라이브 구동회로(6)를 오프시키므로 마이크로 컴퓨터(4)의 신호출력단(O1)에 상관없이 릴레이(7)를 오프시킨다.Therefore, since the drive drive circuit 6 is turned off, the relay 7 is turned off regardless of the signal output terminal O 1 of the microcomputer 4.
따라서 순간 정전시 전력소모가 많은 릴레이(7)를 자동적으로 오프시키므로써 순간 정전이 되어도 마이크로 컴퓨터(4)에 전원을 연장해서 공급하느 것이다.Therefore, by automatically turning off the relay 7 that consumes a lot of power during a momentary power failure, the microcomputer 4 is extended to supply power even when a momentary power failure occurs.
상기한 바와같이 본 고안은 순간 정전이 발생하여도 순간 정전과 동시에 전력소모가 많은 릴레이를 자동 차단함으로써 순간 정전 보상시간을 최대한으로 길게할수 있고, 수행중이었던 마이크로 컴퓨터의 조리 데이타를 보존할 수 있어 사용자에게 편리함을 제공함은 물론 제품의 신뢰도가 높아지는 것에 효과가 있다.As described above, the present invention can maximize the instantaneous power failure compensation time by automatically cutting off the power consumption relay at the same time as the instantaneous power failure even when a power failure occurs, and preserve the cooking data of the microcomputer that was being performed. In addition to providing convenience to the user, it is effective in increasing the reliability of the product.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870004395U KR890007224Y1 (en) | 1987-04-01 | 1987-04-01 | Power circuit of electric range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870004395U KR890007224Y1 (en) | 1987-04-01 | 1987-04-01 | Power circuit of electric range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880020659U KR880020659U (en) | 1988-11-30 |
| KR890007224Y1 true KR890007224Y1 (en) | 1989-10-20 |
Family
ID=19261200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870004395U KR890007224Y1 (en) | 1987-04-01 | 1987-04-01 | Power circuit of electric range |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR890007224Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100859444B1 (en) * | 2001-06-04 | 2008-09-23 | 마쯔시다덴기산교 가부시키가이샤 | Magnetron drive power supply |
-
1987
- 1987-04-01 KR KR2019870004395U patent/KR890007224Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100859444B1 (en) * | 2001-06-04 | 2008-09-23 | 마쯔시다덴기산교 가부시키가이샤 | Magnetron drive power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| KR880020659U (en) | 1988-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5942866A (en) | PWM control circuit for a DC brushless fan | |
| CA1285314C (en) | Motor starting circuit with low cost comparator hysteresis | |
| US4608500A (en) | Electric power unit | |
| US4229669A (en) | Tight tolerance zero crossing detector circuit | |
| CA1129496A (en) | Power supply and control circuit for series connected controller | |
| EP0904545A2 (en) | Current and voltage sensing | |
| US5138547A (en) | Dual input power supply | |
| KR890007224Y1 (en) | Power circuit of electric range | |
| US4658345A (en) | Automatic switchover circuit | |
| US4959556A (en) | Circuit arrangement for deriving a direct voltage from the mains alternating voltage | |
| US5138192A (en) | AC voltage identification circuit | |
| US5760498A (en) | Power drawing circuit for two-wire switching unit | |
| KR940000972Y1 (en) | Driving control circuit of electric cooker | |
| KR900002818Y1 (en) | Power source stabilization circuit for induction heating cooker | |
| KR870000827Y1 (en) | Fan | |
| KR840000992Y1 (en) | Voltage automatic adjustment circuit | |
| KR900002159Y1 (en) | Mistaking control circuit for electronic range | |
| KR850002775Y1 (en) | Commutating circuit | |
| KR940004485Y1 (en) | Capacitor | |
| KR930004375Y1 (en) | Inverter protective circuit | |
| KR880000768Y1 (en) | Power circuit | |
| KR930007960Y1 (en) | Reverse and faulting phase detecting circuit of 3 phase power source | |
| US20210136885A1 (en) | Dimmer with a power supply circuit | |
| KR900002493Y1 (en) | Voltage circuit | |
| KR900006657Y1 (en) | Driving control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19941227 Year of fee payment: 7 |
|
| LAPS | Lapse due to unpaid annual fee |