KR970006426Y1 - Power supply device - Google Patents
Power supply device Download PDFInfo
- Publication number
- KR970006426Y1 KR970006426Y1 KR2019940028063U KR19940028063U KR970006426Y1 KR 970006426 Y1 KR970006426 Y1 KR 970006426Y1 KR 2019940028063 U KR2019940028063 U KR 2019940028063U KR 19940028063 U KR19940028063 U KR 19940028063U KR 970006426 Y1 KR970006426 Y1 KR 970006426Y1
- Authority
- KR
- South Korea
- Prior art keywords
- power supply
- voltage
- terminal
- output terminal
- power
- Prior art date
Links
Classifications
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
요약없음No summary
Description
제 1 도는 종래 전원 공급장치의 회로도.1 is a circuit diagram of a conventional power supply.
제 2 도는 본 고안에 따른 전원 공급장치의 회로도.2 is a circuit diagram of a power supply according to the present invention.
제 3 도는 제 2 도의 제어부의 상세 회로도.3 is a detailed circuit diagram of the controller of FIG.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 및 1A : 정류수단2 : 전류 증폭수단1 and 1A: rectification means 2: current amplification means
3 : 릴레이4 : 비교부3: relay 4: comparator
5 : 온도 감지수단6 : 제어부5: temperature sensing means 6: control unit
T : 써지 방지수단(TNR)T: surge prevention means (TNR)
본 고안은 전원 공급장치에 관한 것으로, 특히 출력단에 접속된 온도 감지수단에의해 과부하를 감지하고, 그 감지된 신호에의해 동작되는 제어부가 전원 입력단자의 한단자에 그 접점이 접속된 릴레이를 구동시켜 입력전원을 차단시하므로써 과부하로인한 장비의 손실을 방지할수 있도록 한 전원 공급장치에 관한 것이다.The present invention relates to a power supply device, and in particular, an overload is sensed by a temperature sensing means connected to an output terminal, and a controller operated by the detected signal drives a relay connected to one terminal of the power input terminal. The present invention relates to a power supply device that prevents loss of equipment due to overload by shutting off input power.
일반적으로 반도체 소자제조 장비와 같이 직류(DC)전원을 필요로하는 장비에는 교류(AC)전원을 소정의 직류(DC)전원으로 변환하여 공급하는 전원 공급장치가 포함된다. 그러면 종래의 전원 공급장치를 제 1 도를 통해 설명하면 다음과 같다.In general, a device that requires a direct current (DC) power source, such as a semiconductor device manufacturing equipment, includes a power supply for converting and supplying an alternating current (AC) power source to a predetermined direct current (DC) power source. Next, a conventional power supply apparatus will be described with reference to FIG. 1.
종래의 전원 공급장치는 제 1 도에 도시된 바와같이 입력단자(E2 및 E3)에 각각의 입력단자가 접속된 정류수단(1)과, 상기 정류수단(1)의 플러스출력단자(+) 및 전류 증폭수단(2)으로 구성된 트랜지스터(Q1및 Q2)의 드레인(Drain)단자간에 저항(R2)이 접속되고 상기 트랜지스터(Q1)의 소오스(Source)단자 및 제 1 출력단자(E1)간에 저항(R5및 R1)이 직렬 접속되며 상기 저항(R5및 R1)의 접속점에 제 2 출력단자(E22)가 접속된다. 상기 정류수단(1)의 마이너스출력단자(-)는 제 3 출력단자(E21)에 접속되고 상기 트랜지스터(Q1)의 드리인단자 및 상기 제 3 출력단자(E21)간에는 캐패시터(Capacitor;C1)가 상기 트랜지스터(Q1)의 드레인단자 및 상기 트랜지스터(Q2)의 게이트(Gate)단자간에 저항(R3및 R4)이 직렬접속 된다. 또한 상기 제 2 출력단자(E22)로부터 상기 트랜지스터(Q2)의 게이트단자사이에 제너다이오드(D1)가 접속되고 상기 저항(R3및 R4)의 접속점, 상기 트랜지스터(Q2)의 게이트단자 그리고 제 2 출력단자(E22)각각으로부터 상기 제 3 출력단자(E21)간에는 제너다이오드(D2), 캐패시터(C2) 그리고 캐패시터(C3)가 각각 병렬로 접속구성된다.In the conventional power supply apparatus, as shown in FIG. 1, rectification means 1 having respective input terminals connected to input terminals E2 and E3, plus output terminals (+) of the rectifying means 1, and A resistor R 2 is connected between the drain terminals of the transistors Q 1 and Q 2 composed of the current amplifying means 2, and a source terminal and a first output terminal E 1 of the transistor Q 1 are connected. Are connected in series between the resistors R 5 and R 1 , and the second output terminal E 22 is connected to the connection point of the resistors R 5 and R 1 . The negative output terminal of the rectifier means (1) (-) to the third output terminal (E 21) connected to the capacitor between the laundry in the terminal and the third output terminal (E 21) of the transistor (Q 1) (Capacitor; In C 1 ), resistors R 3 and R 4 are connected in series between the drain terminal of the transistor Q 1 and the gate terminal of the transistor Q 2 . In addition, a zener diode D 1 is connected between the second output terminal E 22 and the gate terminal of the transistor Q 2 , and a connection point of the resistors R 3 and R 4 , the junction point of the transistor Q 2 , is A zener diode D 2 , a capacitor C 2 , and a capacitor C 3 are connected in parallel between the gate terminal and the second output terminal E 22 , respectively, between the third output terminal E 21 .
상기와 같이 구성된 전원 공급장치의 입력단자(E2 및 E2)에 교류(AC)전원이 공급되면 상기 정류수단(1)에 의해 직류(AC)전원으로 변환되고 상기 저항(R2) 및 캐패시터(C1)에 의해 노이즈(Noise)가 제거된다음 저항(R3) 및 제너다이오드(D2)에 의해 소정의 전압으로 유지된다. 이 유지된 전압은 다알링톤 접속(Darlington ccnnection)으로 구성된 전류 증폭수단(2)에 의해 출력단으로 공급되는데, 이때 제너다이오드(D1)를 통해 트랜지스터(Q2)의 베이스단자로 귀환되는 전압에 의해 출력되는 전압은 항상 일정하게 된다. 그런데 상기와 같은 동작중 출력단에 과부하가 걸리거나 상기 입력단자(E2및 E3)를 통해 써지전압이 입력되는 경우 이러한 전원공급장치에는 순간적인 과전류로 높은 열이 발생되고 이로인해 치명적인 피해를 입게된다.When AC power is supplied to the input terminals E2 and E2 of the power supply device configured as described above, it is converted into direct current (AC) power by the rectifying means 1, and the resistor R 2 and the capacitor C Noise is removed by 1 ) and then maintained at a predetermined voltage by the resistor R 3 and the zener diode D 2 . This maintained voltage is supplied to the output terminal by a current amplifying means 2 composed of a Darlington ccnnection, which is output by a voltage fed back to the base terminal of the transistor Q 2 through the zener diode D1. The voltage that becomes is always constant. However, if the output terminal is overloaded or surge voltage is input through the input terminals E 2 and E 3 during the operation as described above, high heat is generated due to instantaneous overcurrent, thereby causing fatal damage. do.
따라서 본 고안은 출력단에 접속된 온도 감지수단에 의해 과부하를 감지하고, 그 감지된 신호에의해 동작되는 제어부가 전원 입력단자의 한 단자에 그 접점이 접속된 릴레이를 구동시켜 입력전원을 차단시키게 하므로써 상기한 단점을 해소할 수 있는 전원 공급장치를 제공하는데 그 목적이 있다.Therefore, the present invention detects the overload by the temperature sensing means connected to the output terminal, and the controller operated by the detected signal causes the input power to be cut off by driving a relay whose contact is connected to one terminal of the power input terminal. It is an object of the present invention to provide a power supply that can solve the above disadvantages.
상기한 목적을 달성하기 위한 본 고안은 써지전압을 흡수하기위해 상기 교류전원 입력단자간에 접속된 써지방지수단과, 상기 출력단자로부터 접속되며 전류의 흐름에의한 온도변화에 따라 출력신호를 발생하는 제어부와, 전원전압 및 상기 제어부의 출력단자간에 접속되며 B접점이 상기 입력단자의 한 단자간에 접속된 릴레이로 접속구성된 것을 특징으로 한다.The present invention for achieving the above object is a surge prevention means connected between the AC power input terminal to absorb the surge voltage, and is connected from the output terminal to generate an output signal in accordance with the temperature change by the flow of current A control unit is connected between a power supply voltage and an output terminal of the control unit, and a contact point B is configured as a relay connected between one terminal of the input terminal.
이하, 첨부된 도면을 참조하여 본 고안을 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 고안에 따른 전원 공급장치는 제 2 도에 도시된 바와같이 상기 제 1 도와 같은 구성을 갖는 전원 공급장치의 입력단자(E2및 E3)간에 써지 방지수단(T)이 접속되고, 제 2 출력단자(E22)에는 전원전압(Vcc)을 공급받는 제어부(6)가 접속된다. 또한 상기 제어부(6)의 출력단자 및 전원전압(Vcc)간에는 릴레이(3)가 접속되는데, 상기 릴레이(3)의 B접점(RB)이 상기 입력단자(E2)간에 접속구성된다.In the power supply apparatus according to the present invention, as shown in FIG. 2 , surge prevention means T is connected between the input terminals E 2 and E 3 of the power supply apparatus having the same configuration as that of the first diagram, and the second The output terminal E 22 is connected to a control unit 6 that receives a power supply voltage Vcc. In addition, the relay 3 is connected between the output terminal of the control unit 6 and the power supply voltage Vcc, and the B contact RB of the relay 3 is connected between the input terminal E 2 .
상기 제어부(6)는 제 3 도에 도시된 바와같이 제 2 출력단자(E22) 및 접지간에 온도 감지수단(5) 및 저항(R6)이 직렬접속되고, 상기 온도 감지수단(5) 및 저항(R6)의 접속점은 전원전압(Vcc) 및 접지간에 접속된 저항(R7)에 의해 소정의 기준전압을 갖도록 구성되며 그 출력단자가 상기 릴레이(3)의 한 단자에 접속된 비교부(4)의 입력단자에 접속구성된다.As shown in FIG. 3, the controller 6 includes a temperature sensing means 5 and a resistor R 6 connected in series between the second output terminal E 22 and ground, and the temperature sensing means 5 and The connection point of the resistor R 6 is configured to have a predetermined reference voltage by the resistor R 7 connected between the power supply voltage Vcc and the ground, and a comparator unit whose output terminal is connected to one terminal of the relay 3 ( It is connected to the input terminal of 4).
상기와 같이 구성된 전원 공급장치는 제 1 도의 동작설명에서와 같이 제 1 및 제 3 출력단자(E1및 E21) 또는 제 2 및 제 3 출력단자(E22및 E21)를 통해 각각 소정의 직류(DC)전압을 출력하는데, 만일 외부로부터의 과부하에 의해 저항(R1또는 R5)에 높은 열이 발생되는 경우, 온도에 따라 저항값이 변화하는 상기 온도 감지수단(5)의 저항값이 낮아지고 이때, 상기 온도 감지수단(5) 및 저항(R6)의 접속점에 인가되는 전압과 상기 저항(R7)에 의해 결정되는 소정의 기준전압이 비교되어 상기 비교부(4)의 출력은 상기 릴레이(3)를 동작시켜 입력단자(E2)간에 접속된 릴레이(3)의 B접점(RB)을 개방(Open)시킨다. 또한 교류(AC)전원 입력시 발생되는 써지전압은 상기 입력단자(E2및 E3)간에 접속된 써지 방지수단(T)으로 흡수되기 때문에 써지 전압으로부터 장치를 안전하게 보호할 수 있으며, 상기 써지 방지수단(T)으로는 높은 써지 흡수능력을 가진 금속 산화물계의 쎄라믹 바리스터(Ceramic varistor)인 TNR을 사용하고, 상기 온도 감지수단(5)으로는 써미스터(Thermister)를 사용한다.The power supply device configured as described above is provided through the first and third output terminals E 1 and E 21 or the second and third output terminals E 22 and E 21 , respectively, as shown in the operation description of FIG. 1. Outputs a direct current (DC) voltage, and if high heat is generated in the resistor R 1 or R 5 due to an overload from the outside, the resistance value of the temperature sensing means 5 whose resistance value changes with temperature In this case, the voltage applied to the connection point of the temperature sensing means 5 and the resistor R6 and the predetermined reference voltage determined by the resistor R 7 are compared to output the output of the comparison unit 4. The relay 3 is operated to open the B contact RB of the relay 3 connected between the input terminals E 2 . In addition, since the surge voltage generated when the AC power is input is absorbed by the surge prevention means T connected between the input terminals E 2 and E 3 , the device can be safely protected from the surge voltage. As the means (T), TNR, which is a ceramic varistor (Ceramic varistor) having a high surge absorption capacity, is used, and a thermistor is used as the temperature sensing means (5).
상술한 바와같이 본발명에 의하면 써지전원으로부터 장치를 안전하게 보호하고, 출력단의 부하로인한 과전류 발생시 빠르게 교류(AC)전원의 입력을 차단시켜 장치의 피해를 방지할 수 있는 탁월한 효과가 있다.As described above, according to the present invention, there is an excellent effect of safely protecting a device from a surge power supply and preventing damage to the device by quickly cutting off the input of AC power when an overcurrent occurs due to a load of an output terminal.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940028063U KR970006426Y1 (en) | 1994-10-27 | 1994-10-27 | Power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940028063U KR970006426Y1 (en) | 1994-10-27 | 1994-10-27 | Power supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960015738U KR960015738U (en) | 1996-05-17 |
| KR970006426Y1 true KR970006426Y1 (en) | 1997-06-24 |
Family
ID=19396451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019940028063U KR970006426Y1 (en) | 1994-10-27 | 1994-10-27 | Power supply device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970006426Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717362B1 (en) * | 2005-06-10 | 2007-05-10 | 제일전기공업 주식회사 | Surge protection device and consent, concent and distribution switchboard including surge protection device |
-
1994
- 1994-10-27 KR KR2019940028063U patent/KR970006426Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100717362B1 (en) * | 2005-06-10 | 2007-05-10 | 제일전기공업 주식회사 | Surge protection device and consent, concent and distribution switchboard including surge protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960015738U (en) | 1996-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4186418A (en) | Overvoltage protected integrated circuit network, to control current flow through resistive or inductive loads | |
| US3513353A (en) | Voltage monitoring circuit | |
| US3582713A (en) | Overcurrent and overvoltage protection circuit for a voltage regulator | |
| US4513343A (en) | Short circuit protector having fold-back trip point for solid state switching device | |
| US3426265A (en) | Over-current short circuit protection circuit | |
| JPH0888547A (en) | Self-extinction of arc element with overheat protective device | |
| US4246622A (en) | Overload protective device of electric motors | |
| US4623950A (en) | Protective device for a power element of an integrated circuit | |
| KR970006426Y1 (en) | Power supply device | |
| US3577035A (en) | Power transistor protection circuit | |
| US4079444A (en) | D.C. to A.C. electronic inverter with overload protection | |
| US4181921A (en) | Harmonic distortion attenuator | |
| US3344318A (en) | Semi-conductor power supply regulator and protective circuitry therefor | |
| KR100625171B1 (en) | A device for preventing overcurrent | |
| US3906298A (en) | Protective apparatus for digital logic circuits | |
| KR200144429Y1 (en) | Over Current Protection Circuit | |
| JPH1127853A (en) | Protective circuit for main circuit power supply | |
| KR200321222Y1 (en) | A device for preventing overcurrent | |
| JPS585588B2 (en) | DC-DC converter overvoltage protection circuit | |
| JP2001145339A (en) | Switching power supply | |
| SU535646A1 (en) | Device to protect the source of voltage overload | |
| RU1791803C (en) | Device for overvoltage protection in a c two-phase network | |
| KR970004437B1 (en) | Switching power trans. secondary rectifying short protection circuit | |
| KR200144428Y1 (en) | Overcurrent Control Circuit According to Load Power | |
| KR960003419Y1 (en) | Overvoltage protecting 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: 20090922 Year of fee payment: 13 |
|
| EXPY | Expiration of term |