KR930000915Y1 - Switching mode power source circuit - Google Patents
Switching mode power source circuit Download PDFInfo
- Publication number
- KR930000915Y1 KR930000915Y1 KR2019900007539U KR900007539U KR930000915Y1 KR 930000915 Y1 KR930000915 Y1 KR 930000915Y1 KR 2019900007539 U KR2019900007539 U KR 2019900007539U KR 900007539 U KR900007539 U KR 900007539U KR 930000915 Y1 KR930000915 Y1 KR 930000915Y1
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- KR
- South Korea
- Prior art keywords
- circuit
- switching
- power supply
- transistor
- supply circuit
- Prior art date
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
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Abstract
내용 없음.No content.
Description
제1도는 종래의 회로구성도.1 is a conventional circuit configuration diagram.
제2도는 본 고안의 회로블럭도.2 is a circuit block diagram of the present invention.
제3도는 본 고안의 스위치 회로구성도.3 is a switch circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 정류회로 2 : 주전원회로1: rectifier circuit 2: main power circuit
3 : 스탠바이 전원회로 4 : 스위칭회로3: standby power supply circuit 4: switching circuit
5 : 스위칭콘트롤 IC 6 : 제어회로5: switching control IC 6: control circuit
7 : 마이콤 IC2: 포트커플러7: Micom IC 2 : Port Coupler
본 고안은 스위칭 모드 전원회로에 관한 것으로 이는 특히 능동소자로 구성한 스위칭회로에 의해 주전원회로의 전압공급이 제어되도록 하여 기존의 릴레이에서 발생되는 노이즈 및 제반 문제들을 개선하는데 적당하도록 한 스위칭모드 전원회로의 파워 온, 오프회로에 관한 것이다.The present invention relates to a switching mode power supply circuit. In particular, the switching power supply circuit is controlled by a switching circuit composed of active elements, so that the voltage supply of the main power supply circuit is controlled so as to be suitable for improving noise and general problems generated in the existing relay. It relates to a power on and off circuit.
종래에는 도면 제1도에서와 같이 스탠바이 전원회로(3)후단에 마이콤(7)의 콘트롤신호로 바이어스되는 트랜지스터(Q1)와 릴레이(8)의 코일측을 직렬로 하여 접지하고 릴레이(8)의 스위칭단자는 교류(AC)입력과 정류회로(1)에 그 양단을 접속하여서 구성하며 이러한 구성의 스위칭회로는 스탠바이전원회로(3)와 마이콤(7)의 콘트롤신호에 의해 릴레이(8)를 구동시켜 교류전원(AC)이 정류회로(1)를 통해 주전원회로(2)에 공급되도록 하였으므로 회로의 온, 오프시에 릴레이의 구동에서 생기는 릴레이 자체의 기구적인 열화가 문제점으로 나타났으며 또 그때마다 생기는 노이즈 및 구동전류의 소모가 많아지게 되는 문제점도 뒤따랐다.Conventionally, as shown in FIG. 1, the transistor Q 1 biased by the control signal of the microcomputer 7 and the coil side of the relay 8 are grounded in series and connected to the relay 8 after the standby power supply circuit 3. The switching terminal of is configured by connecting the both ends of the AC input and the rectifier circuit 1, the switching circuit of this configuration is to relay the relay (8) by the control signal of the standby power supply circuit (3) and the microcomputer (7) Since AC power was supplied to the main power circuit 2 through the rectifier circuit 1, mechanical deterioration of the relay itself caused by driving the relay when the circuit was turned on and off appeared as a problem. There was also a problem that the consumption of noise and driving current that occur every time.
본 고안은 이러한 종래의 문제점을 개선하기 위해 안출한 것으로서, 주전원회로의 전원은, 오프동작이 능동소자로 구성되는 스위칭회로의 스위치에 의해 제어되도록 하였으며 이를 이하 첨부 도면에 의해 상세히 설명하면 다음과 같다.The present invention has been made to improve such a conventional problem, the power supply of the main power circuit, the off operation is controlled by a switch of a switching circuit composed of active elements, which will be described in detail by the accompanying drawings as follows. .
즉, 제2도는 본 고안의 회로블럭도를 나타낸 것으로, 정류회로(1)를 통해 주전원회로(2)로 인가되는 교류전원을 스탠바이 전원회로(3)에도 인가되도록하고 스탠바이 전원회로(3)의 전원과 외부 콘트롤 신호가 인가되는 제어회로(6)는 능동소자로 구성된 스위칭 회로(4)를 제어하도록 하여 상기 스위칭회로(4)의 구동상태에 따라 스위칭콘트롤 IC(5) 및 주전원회로(2)가 동작되도록 연결구성한 것이다.That is, FIG. 2 shows a circuit block diagram of the present invention, in which AC power applied to the main power supply circuit 2 through the rectifier circuit 1 is also applied to the standby power supply circuit 3, and the standby power supply circuit 3 is The control circuit 6 to which the power and an external control signal are applied controls the switching circuit 4 composed of active elements, so that the switching control IC 5 and the main power supply circuit 2 are driven according to the driving state of the switching circuit 4. Is configured to work.
제3도는 제2도 블럭도를 상세하게 나타낸 것으로, 이를 참고로 하여 본 고안의스위칭 제어동작을 상세히 설명하면, 능동 소자를 사용한 스위치회로에 입력될 교류(AC)전압은 스탠바이 전원 회로(3)의 트랜스(T1) 1차측에 인가하여 콘덴서(C1)와 다이오오드(D1)와 레귤레이터(IC1)에서 만들어진 출력전압이 포토커풀러(IC2)의 1차측과 마이콤(7)의 스탠바이 전원으로 인가되게 하고, 브리지 회로구성의 정류회로(1)에 인가된 교류전압은 정류회로의 출력단에서 두 저항(R3)(R4)에 의해 분배되어 스위칭회로(4)의 트랜지스터(Q2)의 베이스전위를 하이(H)상태로 머물게 하며 또 상기의 분배 전압(V1)은 저항(R2)을 통해 포토커플러(IC2)의 2차측에 인가시키고, 정류회로(1)의 출력단에서 다른 두저항(R5)(R6)에 의해 분배된 전압(V2)은 스위칭 콘트롤 IC(5) 및 트랜지스터(Q2) 콜렉터에 인가되도록 구성한다.3 is a detailed block diagram of FIG. 2. Referring to this, the switching control operation of the present invention is described in detail. An AC voltage to be input to a switch circuit using an active element is a standby power supply circuit 3. The output voltage generated by the capacitor (C 1 ), diode (D 1 ) and regulator (IC 1 ) is applied to the transformer (T 1 ) primary side of the primary side of the photocoupler (IC 2 ) and the microcomputer (7). AC voltage applied to the rectifying circuit 1 of the bridge circuit configuration is distributed by the two resistors R 3 and R 4 at the output terminal of the rectifying circuit, and is applied to the transistor Q of the switching circuit 4. The base potential of 2 ) is kept high (H) and the above divided voltage (V 1 ) is applied to the secondary side of the photocoupler (IC 2 ) through the resistor (R 2 ), and the rectifier circuit (1) the other two resistors in the output stage (R 5) (R 6) the voltage (V 2) is the switching control IC (5) and divided by the It is configured to be applied to the transistor (Q 2) collector.
이러한 상태에서 마이콤(7)의 입력단에 외부로부터 콘트롤 신호가 들어오지 않는 세트오프(POWER OFF)상태가 유지되면 마이콤(7)의 출력단(OUT)이 하이(H)상태로 머물게 되어 트랜지스터(Q1)가 오프되고 이에따라 포토커플러(IC2)가 오프되므로 두저항(R2) (R4)의 분배전압(V1)은 트랜지스터(Q2)를 바이어스시켜 턴 온시키며 따라서 스위칭콘트롤 IC(5)에 인가되는 두저항(R5)(R6)의 분배전압(V2)은 로우(L)레벨이 주전원회로(2)를 동작시키지 못하게 되며, 반대로 세트온(POWER ON) 상태에서는 외부로부터 마이콤(7)에 입력되는 콘트롤 신호에 의해 마이콤(7)의 출력단 전위는 하이(H)에서 로우(L)로 떨어져 트랜지스터(Q1)가 턴-온되므로 포토커플러(IC2)가 온상태로 되고 이에따라 트랜지스터(12)의 베이스에 인가되던 두저항(R3)(R4)의 분배전압(V1)은 트랜지스터(Q2)의 바이어스 전압보다 낮아지게 되어 트랜지스터(Q2)가 오프되므로 두저항(R5)(R6)의 분배전압(V2)은 트랜지스터(Q2)의 콜렉터측에서 스위칭콘트롤 IC(5)의 입력단에 하이(H) 상태로 인가되어 주전원회로(2)로부터 각 회로에 필요한 전압을 공급할 수 있도록 주전원회로(2)를 동작시키게 되는 것이다.In this state, if the power OFF state is maintained at the input terminal of the microcomputer 7 from which no control signal is input from the outside, the output terminal OUT of the microcomputer 7 remains high (H) and the transistor Q 1 . Since the photocoupler IC 2 is turned off and thus the photocoupler IC 2 is turned off, the divider voltage V 1 of the two resistors R 2 (R 4 ) is turned on by biasing the transistor Q 2 and thus the switching control IC 5. The divided voltage (V 2 ) of the two resistors (R 5 ) and (R 6 ) applied is such that the low (L) level does not operate the main power circuit (2). 7) The output terminal potential of the microcomputer 7 drops from high (H) to low (L) by the control signal input to 7), so that the transistor (Q 1 ) is turned on so that the photocoupler (IC 2 ) is turned on and accordingly The division voltage V 1 of the two resistors R 3 and R 4 applied to the base of the transistor 1 2 is a transistor. Since the transistor Q 2 is turned off because the bias voltage of the rotor Q 2 is lowered, the divided voltage V 2 of the two resistors R 5 and R 6 is changed to the switching control IC at the collector side of the transistor Q 2 . It is applied to the input terminal of (5) in a high (H) state to operate the main power supply circuit 2 so that it can supply the necessary voltage from the main power supply circuit (2) to each circuit.
따라서 본 고안은 이상에서와 같이 능둥소자의 스위칭작용으로 기존의 릴레이의 스위칭역할을 대신하게 되므로 스위칭모드 전원 공급회로에서 릴레이의 구동에 의해 발생되는 노이즈와 전류소모를 방지할 수 있도록 고안한 것으로서 스위칭모드 전원회로에서의 스위칭에 따른 저전류화 및 반영구성의 효과를 갖고 있는 유용한 고안이다.Therefore, the present invention is designed to prevent the noise and current consumption caused by the driving of the relay in the switching mode power supply circuit, because the switching role of the tungdong element to replace the switching role of the existing relay as described above It is a useful design that has the effect of reducing the current and reflecting configuration according to the switching in the mode power circuit.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900007539U KR930000915Y1 (en) | 1990-05-31 | 1990-05-31 | Switching mode power source circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900007539U KR930000915Y1 (en) | 1990-05-31 | 1990-05-31 | Switching mode power source circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910021177U KR910021177U (en) | 1991-12-20 |
| KR930000915Y1 true KR930000915Y1 (en) | 1993-02-27 |
Family
ID=19299394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900007539U KR930000915Y1 (en) | 1990-05-31 | 1990-05-31 | Switching mode power source circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930000915Y1 (en) |
-
1990
- 1990-05-31 KR KR2019900007539U patent/KR930000915Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR910021177U (en) | 1991-12-20 |
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