KR20020084402A - Apparatus for controlling inrush current - Google Patents
Apparatus for controlling inrush current Download PDFInfo
- Publication number
- KR20020084402A KR20020084402A KR1020010023600A KR20010023600A KR20020084402A KR 20020084402 A KR20020084402 A KR 20020084402A KR 1020010023600 A KR1020010023600 A KR 1020010023600A KR 20010023600 A KR20010023600 A KR 20010023600A KR 20020084402 A KR20020084402 A KR 20020084402A
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- KR
- South Korea
- Prior art keywords
- inrush current
- relay
- thermistors
- present
- control
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- 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
- H02H1/043—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 to inrush currents
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
본 발명은 쇄도전류(Inrush Current) 제어장치에 관한 것으로, 특히 보조전원을 활용하고 릴레이를 개선하여 쇄도전류를 제어하고, 출력손실을 감소시키며, 간단한 회로만으로도 쇄도전류를 제어하기에 적당하도록 한 쇄도전류 제어장치에 관한 것이다.TECHNICAL FIELD The present invention relates to an inrush current control device, and in particular, an inrush current is utilized to control an inrush current by improving a relay, to reduce an output loss, and to make an inrush current suitable for controlling an inrush current with a simple circuit. It relates to a current control device.
일반적으로 서버 및 네트워크용 장치에는 전원 공급 장치가 사용되는데, 이러한 전원 공급 장치는 쇄도전류(Inrush Current)를 민감하게 받아들이고, 전류를30A 이하에서 받아들일 수 있어야 한다.Typically, power supplies are used in devices for servers and networks. These power supplies must be sensitive to inrush current and capable of accepting currents below 30A.
도 1은 종래 쇄도전류 제어장치의 회로구성도이다.1 is a circuit diagram of a conventional inrush current control device.
그래서 종래에는 쇄도전류로부터 제품을 보호하기 위하여 트라이악(Triac)(Q)을 사용하고 있다. 이러한 트라이악(Q)은 게이트 단자에 주는 신호에 의해 어느 방향으로나 전류를 통전할 수 있도록 하는 사이리스터로써, 이 방향성의 제어 스위치 기능을 수행하여 교류 회로에서 사용된다.Therefore, in the related art, Triac (Q) is used to protect the product from the inrush current. The triac Q is a thyristor that allows current to flow in any direction by a signal to a gate terminal, and is used in an AC circuit by performing a control switch function of this direction.
만약 입력 전압이 순간적으로 들어오게 되면 입력 커패시터에 의해 전류가 수백 암페어까지 들어와 제품에 치명타를 입힐 수 있다.If the input voltage comes in momentarily, the input capacitor can cause the current to enter hundreds of amperes, causing damage to the product.
이를 보호하고자 종래에는 저항(R1)에서 전류를 제어하고, 코일(T1)이 동작을 하면 다이오드(D)가 동작하여 트라이악(Q)의 게이트에 작동하게 된다.To protect this, conventionally, the current is controlled by the resistor R1, and when the coil T1 operates, the diode D operates to operate at the gate of the triac Q.
그러면 트라이악(Q)의 작동에 의해 저항(R1)에 전압이 들어올 경우 순간적인 쇄도전류로부터 제품을 보호하게 된다.Then, when the voltage is applied to the resistor R1 by the operation of the triac Q, the product is protected from the instantaneous inrush current.
그러나 이러한 종래의 장치는 트라이악을 사용하기 때문에 사용 가격이 매우 높고, 트라이악 이외에도 저항, 다이오드, 콘덴서와 같은 여러 부품들을 필요로 하여 장애 발생 가능성이 높아지게 되며, 출력 손실이 증가함으로써, 가격과 품질 면에서의 경쟁력이 떨어지는 문제점이 있었다.However, these conventional devices are very expensive to use because they use triacs, and in addition to the triacs, many components such as resistors, diodes, and capacitors are required to increase the possibility of failure. There was a problem of inferior competitiveness.
이에 본 발명은 상기와 같은 종래의 제반 문제점을 해소하기 위해 제안된 것으로, 본 발명의 목적은 보조전원을 활용하고 릴레이를 개선하여 쇄도전류를 제어하고, 출력손실을 감소시키며, 간단한 회로만으로도 쇄도전류를 제어할 수 있는 쇄도전류 제어장치를 제공하는 데 있다.Therefore, the present invention has been proposed to solve the conventional problems as described above, an object of the present invention is to utilize the auxiliary power supply and improve the relay to control the inrush current, reduce the output loss, the inrush current even with a simple circuit It is to provide an inrush current control device that can control the.
도 1은 종래 쇄도전류 제어장치의 회로구성도이고,1 is a circuit configuration diagram of a conventional inrush current control device,
도 2는 본 발명에 의한 쇄도전류 제어장치의 회로구성도이다.2 is a circuit configuration diagram of the inrush current control apparatus according to the present invention.
〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
TH : 서미스터 RE : 릴레이TH: Thermistor RE: Relay
Q : 트라이악 C : 콘덴서Q: Triac C: Condenser
D : 다이오드 R : 저항D: Diode R: Resistance
T : 코일T: coil
상기와 같은 목적을 달성하기 위하여 본 발명의 일실시예에 의한 쇄도전류 제어장치는, 장치로부터 공급되는 전류를 감지하도록 직렬로 연결된 제 1 및 제 2 서미스터와; 상기 제 1 및 제 2 서미스터의 양단과 연결되어 장치로부터 발생된 쇄도전류를 제어하는 릴레이와; 상기 릴레이의 양단과 연결되고 역방향으로 보조전원과 연결된 다이오드를 포함하여 이루어짐을 그 기술적 구성상의 특징으로 한다.In order to achieve the above object, the inrush current control apparatus according to an embodiment of the present invention, the first and second thermistor connected in series to sense the current supplied from the device; A relay connected to both ends of the first and second thermistors to control the inrush current generated from the device; It is characterized in that it comprises a diode connected to both ends of the relay and connected to the auxiliary power in the reverse direction.
본 발명의 상술한 목적과 여러 가지 장점은 이 기술분야에 숙련된 사람들에 의해, 첨부된 도면을 참조하여 후술되는 본 발명의 바람직한 실시 예로부터 더욱 명확하게 될 것이다.The above object and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.
이하, 상기와 같은 본 발명, 쇄도전류 제어장치의 기술적 사상에 따른 일실시예를 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention as described above and an inrush current control apparatus will be described with reference to the accompanying drawings.
도 2는 본 발명에 의한 쇄도전류 제어장치의 회로구성도이다.2 is a circuit diagram of an inrush current control device according to the present invention.
이에 도시된 바와 같이, 장치로부터 공급되는 전류를 감지하도록 직렬로 연결된 제 1 및 제 2 서미스터(TH1)(TH2)와; 상기 제 1 및 제 2 서미스터(TH1)(TH2)의 양단과 연결되어 장치로부터 발생된 쇄도전류를 제어하는 릴레이(RE)와; 상기 릴레이(RE)의 양단과 연결되고 역방향으로 보조전원과 연결된 다이오드(D)를 포함하여 구성된다.As shown here, first and second thermistors TH1 and TH2 connected in series to sense a current supplied from the device; A relay (RE) connected to both ends of the first and second thermistors (TH1) and (TH2) to control the inrush current generated from the device; It is configured to include a diode (D) connected to both ends of the relay (RE) and connected to the auxiliary power in the reverse direction.
이와 같이 구성된 본 발명에 의한 쇄도전류 제어장치의 동작을 첨부한 도면에 의거 상세히 설명하면 다음과 같다.The operation of the inrush current control device according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.
먼저 제 1 및 제 2 서미스터(TH1)(TH2)의 전류를 제어하도록 10오옴 2개를 사용하여 사용자가 요구하는 사양을 만족시킬 수 있다.First, two 10 ohms may be used to control the current of the first and second thermistors TH1 and TH2 to satisfy a user's specification.
그리고 전원(E)은 보조전원의 전압을 받아 사용하기 때문에 메인 전원의 동작에는 충분한 시간이 확보되어 제 1 및 제 2 서미스터(TH1)(TH2)는 스트레스를 받지 않게 된다.In addition, since the power source E receives and uses the voltage of the auxiliary power source, sufficient time is ensured for the operation of the main power source so that the first and second thermistors TH1 and TH2 are not stressed.
릴레이(RE)를 사용함으로써 열적인 손실을 최소화한다.The use of a relay RE minimizes thermal losses.
여기서 릴레이는 전기적으로 제어되는 장치로서, 동일한 또는 다른 전기 회로를 가진 장치의 동작이 생기게 하기 위하여 회로의 접점을 개폐하도록 구성된 것이다.The relay here is an electrically controlled device configured to open and close the contacts of the circuit in order to cause the operation of devices with the same or different electrical circuits.
또한 릴레이(RE)의 사용에 의해 부품수가 적어져 다양한 제품에 적용할 경우에도 용이하게 적용할 수 있게 된다.In addition, the number of parts is reduced by the use of the relay (RE) it can be easily applied to various products.
이는 종래의 트라이악을 사용한 것 보다 출력손실이 적어지고, 이러한 출력손실의 감소효과는 출력와트가 커질수록 크게 나타난다.The output loss is less than that of the conventional triac, and the reduction effect of the output loss is larger as the output watt becomes larger.
이처럼 본 발명은 보조전원을 활용하고 릴레이를 개선하여 쇄도전류를 제어하고, 출력손실을 감소시키며, 간단한 회로만으로도 쇄도전류를 제어하게 되는 것이다.As such, the present invention utilizes an auxiliary power source and improves relay to control inrush current, reduce output loss, and control inrush current with a simple circuit.
이상에서 본 발명의 바람직한 실시예를 설명하였으나, 본 발명은 다양한 변화와 변경 및 균등물을 사용할 수 있다. 본 발명은 상기 실시예를 적절히 변형하여 동일하게 응용할 수 있음이 명확하다. 따라서 상기 기재 내용은 하기 특허청구범위의 한계에 의해 정해지는 본 발명의 범위를 한정하는 것이 아니다.Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.
이상에서 살펴본 바와 같이, 본 발명에 의한 쇄도전류 제어장치는 보조전원을 활용하고 릴레이를 개선하여 쇄도전류를 제어하고, 열적인 손실이 적고, 출력손실을 감소시킬 수 있는 효과가 있게 된다.As described above, the inrush current control apparatus according to the present invention utilizes an auxiliary power source and improves relays to control the inrush current, and has a low thermal loss and an output loss.
또한 릴레이를 사용하여 쇄도전류 제어회로를 간단하게 구현함으로써 종래의 트라이악을 사용한 장치에 비해 20%의 가격이득이 있는 효과도 있다.In addition, by implementing a inrush current control circuit using a relay, there is a 20% cost-effective effect compared to a device using a conventional triac.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010023600A KR20020084402A (en) | 2001-04-30 | 2001-04-30 | Apparatus for controlling inrush current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010023600A KR20020084402A (en) | 2001-04-30 | 2001-04-30 | Apparatus for controlling inrush current |
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| Publication Number | Publication Date |
|---|---|
| KR20020084402A true KR20020084402A (en) | 2002-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020010023600A KR20020084402A (en) | 2001-04-30 | 2001-04-30 | Apparatus for controlling inrush current |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100511275B1 (en) * | 2002-11-08 | 2005-08-31 | 엘지전자 주식회사 | Driving apparatus for shading coil type single induction motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5420780A (en) * | 1993-12-30 | 1995-05-30 | Omega Power Systems | Apparatus for limiting inrush current |
| JPH099497A (en) * | 1995-06-21 | 1997-01-10 | Nec Corp | Power input circuit |
| KR19990007507U (en) * | 1997-07-31 | 1999-02-25 | 이종수 | Electronic overcurrent relay |
| JP2000354377A (en) * | 1999-06-09 | 2000-12-19 | Toshiba Corp | Rush current suppressing circuit |
-
2001
- 2001-04-30 KR KR1020010023600A patent/KR20020084402A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5420780A (en) * | 1993-12-30 | 1995-05-30 | Omega Power Systems | Apparatus for limiting inrush current |
| JPH099497A (en) * | 1995-06-21 | 1997-01-10 | Nec Corp | Power input circuit |
| KR19990007507U (en) * | 1997-07-31 | 1999-02-25 | 이종수 | Electronic overcurrent relay |
| JP2000354377A (en) * | 1999-06-09 | 2000-12-19 | Toshiba Corp | Rush current suppressing circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100511275B1 (en) * | 2002-11-08 | 2005-08-31 | 엘지전자 주식회사 | Driving apparatus for shading coil type single induction motor |
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