KR840001051Y1 - Voltage automatic control circuit - Google Patents
Voltage automatic control circuit Download PDFInfo
- Publication number
- KR840001051Y1 KR840001051Y1 KR2019820008916U KR820008916U KR840001051Y1 KR 840001051 Y1 KR840001051 Y1 KR 840001051Y1 KR 2019820008916 U KR2019820008916 U KR 2019820008916U KR 820008916 U KR820008916 U KR 820008916U KR 840001051 Y1 KR840001051 Y1 KR 840001051Y1
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- South Korea
- Prior art keywords
- voltage
- transistor
- control circuit
- circuit
- automatic control
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- Legal status (The legal status 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 status listed.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
- H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
- H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
- H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
내용 없음.No content.
Description
첨부된 도면은 본 고안의 회로도.The accompanying drawings are circuit diagrams of the present invention.
본 고안은 전압자동 조절회로에 관한 것으로 일력전압이 AC 110V/220V 나 AC115V/230V 등 2전원을 사용할 경우 자동으로 전압이 조정되도록 한 것이다.The present invention relates to a voltage automatic control circuit, so that the work voltage is automatically adjusted when two power sources such as AC 110V / 220V or AC115V / 230V are used.
종래의 전압 조절회로는 전원트랜스의 1차측에 릴레이 스위치를 장치하여 입력전압에 따라 수동으로 스위치를 절환하여 사용함으로서 사용자가 부주의한 경우 전자기기에 큰 손상을 주게될뿐만 아니라 가격면에서도 상승되고 회로자체도 복잡해지는 결점이 있었다.In the conventional voltage control circuit, a relay switch is installed on the primary side of a power supply transformer, and the switch is manually switched according to an input voltage. Thus, when a user is inadvertently used, the voltage control circuit not only causes great damage to the electronic device but also increases in price. It was a flaw in itself.
본 고안은 이러한 결점을 해결하여 입력전압에 따라 자동으로 전압이 조절될 수 있도록 한것으로 첨부 도면에 따라 상세히 설명하면 다음과 같다.The present invention is to solve this drawback so that the voltage can be automatically adjusted according to the input voltage described in detail according to the accompanying drawings as follows.
먼저 본 고안의 구성을 보면 전원트랜스(3)의 2차측에 3단자(A, B, C)를 형성하고, (이때단자(B)는 중앙점이다), 단자(A, B)와 단자(B, C) 사이에 각각 부릿지 정류회로(4, 5)를 연결하고 브릿지 정류회로(5)의 출력단자는 정류용 콘덴서(C2)의 ＋측과정전압회로(6) 및 스위칭 트랜지스터(Q2)의 콜렉터에 연결된다.First, according to the configuration of the present invention, three terminals A, B, and C are formed on the secondary side of the power supply transformer 3 (the terminal B is the center point), the terminals A, B, and the terminal ( The bridge rectifier circuits 4 and 5 are respectively connected between B and C, and the output terminal of the bridge rectifier circuit 5 is a + side process voltage circuit 6 and a switching transistor Q 2 of the rectifier capacitor C 2 . Is connected to the collector.
또한 브릿지 정류회로(4)의 출력단자는 스위칭 트랜지스터(Q2)의 에미터와 정류용 콘덴서(C1)의 ＋측에 연결된다. 저항(R1)은 일단은 콘덴서(C1)의 ＋측에, 다른단은 저항(R2)과 트랜지스터(Q1)의 베이스에 각각 열결되며, 트랜지스터(Q1)의 콜렉터측은 저항(R5)과 트랜지스터(Q2)의 베이스에 연결되고, 트랜지스터(Q1)의 에미터측은 제너 다이오드(Z1)를 통해트랜지스터(Q2)의 에미터에 연결된다. 한편 트랜지스터(Q3)의 에미터는 접지되고, 콜렉터는 저항(R6)을 통해 트랜지스터(Q2)의 베이스와 연결되고, 저항(R4)은 트랜지스터(Q2)의 에미터와 베이스사이에 연결된다.In addition, the output terminal of the bridge rectifying circuit 4 is connected to the emitter of the switching transistor Q 2 and the + side of the rectifying capacitor C1. Resistance (R 1) is one of the capacitors to the + side of the (C 1), the other end is respectively yeolgyeol to the base of the resistance (R 2) and the transistor (Q 1), side of the collector of the transistor (Q 1) resistance (R 5 ) and the base of transistor Q 2 , and the emitter side of transistor Q 1 is connected to the emitter of transistor Q 2 through zener diode Z 1 . Meanwhile, the emitter of transistor Q 3 is grounded, the collector is connected to the base of transistor Q 2 through resistor R 6 , and resistor R 4 is connected between the emitter and base of transistor Q 2 . Connected.
이와 같이 구성된 본 고안의 동작은 우선 저항(R1,R2)을 적당히 선택하여 브릿지정류회로(4)의 출력단에 나타나는 전압크기에 따라 검출용 트랜지스터(Q1)를 ON, OFF 시키며, 이 때 저항(R3)과 기준전압용 제너다이오드(Z1)는 검출 용트랜지스터(Q1)에 기준전압을 제공한다. 저항(R4)은 스위칭 트랜지스터(Q2)의 바이어스를 공급하며 저항(R5)은 드라이버 트랜지스터(Q3)에 바이어스를 공급한다.The operation of the present invention configured as described above first selects the resistors R 1 and R 2 appropriately to turn ON and OFF the detection transistor Q 1 according to the voltage level displayed at the output terminal of the bridge rectifier circuit 4. The resistor R 3 and the zener diode Z 1 for the reference voltage provide a reference voltage to the detection transistor Q 1 . Resistor R 4 supplies the bias of switching transistor Q 2 and resistor R 5 supplies the bias to driver transistor Q 3 .
이제 일례를 들어 동작과정을 상세히 설명하면, AB110V 입력시 S점에 7.5V의 직류전압이 발생한다면 P점에는 15V의 직류전압이 생기고, AC 220V가 입력되면 S점에는 15V ; P점은 30V의 직류전압이 각각 발생한다. 따라서 정전압회로(6)로 부터 항상 일정한 직류전압을 얻기위해서는 AC 110V일때는 브릿지 정류회로(4)의 출력전압(P점 전압)이 전압자동조절회로를 통해 직류전압을 결정하며, AC 220V가 입력때는 브릿지 정류회로(5)의 출력전압이 정전압회로(6)를 거쳐 일정한 직류전압을 얻도록 하면된다. 따라서 이 경우는 P점의 전압의 20V 이상이면 검출트랜지스터(Q1)가 OFF, 20V 이하이면 ON되도록 저항(R1, R2) 값을 설정하면 된다.Now, as an example, the operation process will be described in detail. If a DC voltage of 7.5V occurs at S point when AB110V is input, a 15V DC voltage is generated at P point, and 15V at S point when AC 220V is input; P point generate | occur | produces DC voltage of 30V, respectively. Therefore, in order to always obtain a constant DC voltage from the constant voltage circuit 6, when AC 110V, the output voltage (P point voltage) of the bridge rectifier circuit 4 determines the DC voltage through the voltage automatic control circuit, and AC 220V is input. In this case, the output voltage of the bridge rectifying circuit 5 may be a constant DC voltage via the constant voltage circuit 6. In this case, therefore, the resistors R 1 and R 2 may be set so that the detection transistor Q 1 is turned OFF when the voltage at the point P is 20 V or more, and turned ON when the voltage is 20 V or less.
그러므로 검출트랜지스터(Q1)가 ON 되었다면 드라이버트랜 지스터(Q3)가 ON 되고, 따라서 P점의 전압이 저항(R4, R6) 및 트랜지스터(Q3)를 통해 흐르게되면 저항(R4)의 양단 전압에 의해 스위칭트랜지스터(Q2)가 ON 되므로 P점의 전압이 트랜지스터(Q2)를 통해 정전압회로(6)로 입력되므로 원하는 직류전압을 얻게 된다. 그러나 저항(R1, R2)의 양단전압에 의하여 검출트랜지스터(Q1)가 OFF되면 브릿지 정류회로(5)의 출력전압이 그대로 정전압회로(6)로 입력되므로 원하는 직류전압을 얻는 것이다.Therefore, if the detection transistor Q 1 is turned on, the driver transistor Q 3 is turned on. Therefore, when the voltage at the point P flows through the resistors R 4 and R 6 and the transistor Q 3 , the resistor R 4 is turned on. Since the switching transistor Q 2 is turned on by the voltage at both ends of the voltage, the voltage at the point P is input to the constant voltage circuit 6 through the transistor Q 2 , thereby obtaining a desired DC voltage. However, when the detection transistor Q 1 is turned off due to the voltage across the resistors R 1 and R 2 , the output voltage of the bridge rectifying circuit 5 is input to the constant voltage circuit 6 as it is, thereby obtaining a desired DC voltage.
따라서 본 고안을 사용하면 전자기기의 입력전원전압이 AC 110V/220V 또는 AC 115V/130V 중 어느 전압이 입력되어도 전자기기에 손상을 주지 않고 안전하게 동작하므로 사용자의 부주의로 인한 전자기기의 파손을 막을 수 있으며, 비교적 간단한 트랜지스터스위칭 회로를 설치함으로서 원가뒤감도 할 수 있는 것이다.Therefore, if the input power voltage of the electronic device is input to any one of AC 110V / 220V or AC 115V / 130V, the electronic device operates safely without damaging the electronic device, thereby preventing damage to the electronic device due to user's carelessness. In addition, cost reduction can be achieved by providing a relatively simple transistor switching circuit.
미설명부호 1은 전원코드를 나타내고, 2는 퓨즈를 나타낸다.Reference numeral 1 denotes a power cord, and 2 denotes a fuse.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019820008916U KR840001051Y1 (en) | 1982-11-11 | 1982-11-11 | Voltage automatic control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019820008916U KR840001051Y1 (en) | 1982-11-11 | 1982-11-11 | Voltage automatic control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR840001051Y1 true KR840001051Y1 (en) | 1984-06-18 |
| KR840002801U KR840002801U (en) | 1984-06-30 |
Family
ID=72147712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019820008916U Expired KR840001051Y1 (en) | 1982-11-11 | 1982-11-11 | Voltage automatic control circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR840001051Y1 (en) |
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1982
- 1982-11-11 KR KR2019820008916U patent/KR840001051Y1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR840002801U (en) | 1984-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19821111 |
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| UA0201 | Request for examination |
Patent event date: 19821111 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
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| UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19840525 |
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| UG1501 | Laying open of application | ||
| O032 | Opposition [utility model]: request for opposition | ||
| UO0301 | Opposition |
Comment text: Request for Opposition Patent event code: UO03011R01D Patent event date: 19840818 |
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| E701 | Decision to grant or registration of patent right | ||
| O071 | Decision to grant registration after opposition [utility model]: decision to grant registration | ||
| UE0701 | Decision of registration |
Patent event date: 19841016 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
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| UO0701 | Decision to grant registration after opposition |
Patent event code: UO07011S01D Comment text: Decision to Grant Registration Patent event date: 19841016 |
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| REGI | Registration of establishment | ||
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Patent event date: 19841031 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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| UR1002 | Payment of registration fee |
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