KR910008519Y1 - Noise filter with protective function from surge - Google Patents

Noise filter with protective function from surge Download PDF

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Publication number
KR910008519Y1
KR910008519Y1 KR2019880000633U KR880000633U KR910008519Y1 KR 910008519 Y1 KR910008519 Y1 KR 910008519Y1 KR 2019880000633 U KR2019880000633 U KR 2019880000633U KR 880000633 U KR880000633 U KR 880000633U KR 910008519 Y1 KR910008519 Y1 KR 910008519Y1
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South Korea
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noise
surge
load
capacitor
noise generated
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KR2019880000633U
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Korean (ko)
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KR890016788U (en
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민경찬
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민경찬
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Publication of KR910008519Y1 publication Critical patent/KR910008519Y1/en

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
    • H03H1/0007—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network of radio frequency interference filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Filters And Equalizers (AREA)

Abstract

내용 없음.No content.

Description

서지(Surge)보호 기능을 갖는 잡음 제거 필터(Nase Filter)Noise Filter with Surge Protection

제1도는 본 고안의 회로도.1 is a circuit diagram of the present invention.

제2a도 내지 제2c도는 본 고안에 사용되는 서지(surge) 흡수형 소자의 구체적인 실시예.2a to 2c is a specific embodiment of the surge absorbing device used in the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1, 1' : 상용 전원에서 유입되는 서지 및 잡음 유출 경로1, 1 ': Surge and noise leakage path from commercial power

2 : 서지(surge)흡수형 소자2: surge absorbing element

3 : 저역 통과 필터(Low PAss Filter) 4, 4' : 부하 잡음 유출 경로3: Low PAss Filter 4, 4 ': Load Noise Leakage Path

5 : 2극관 어레스터(Arrester) 6 : 3극판 어레스터(Arrester)5: 2-pole Arrester 6: 3-pole Arrester

7 : 대칭 제너다이오드 8 : 부하7: symmetric zener diode 8: load

C1∼C4: 콘덴서C 1 to C 4 : condenser

본 고안은 잡음 제거 필터에 관한 것으로서, 특히 전자기기의 잡음은 물론 상용 전원에서 유인되는 잡음을 동시에 제거하기 위한 서지(surge) 보호 기능을 갖는 잡음 제거 필터에 관한 것이다.The present invention relates to a noise canceling filter, and more particularly, to a noise canceling filter having a surge protection function for simultaneously removing noise induced by a commercial power supply as well as noise of an electronic device.

종래의 잡음 제거 필터는 기기측으로 부터 유입되는 고주파 잡음을 흡수하는 것으만 구성되어 있어 입력 전원에서 발생되는 임펄스(impuls)성 잡음이나 스위치의 "온" "오프"시 발생하는 잡음으로 이하여 사용 기기 및 주변 기기에 영향을 주게 되며, 또한 낙뢰로 부터 기기를 보호할 수 있는 기능이 없었던 것이다.Conventional noise canceling filters consist only of absorbing high-frequency noise from the equipment side, which can result in impulsive noise generated from the input power supply or noise generated when the switch is turned “on” or “off”. And peripherals, and also did not have the ability to protect the device from lightning.

본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 상용 전원에서 유입되는 잡음과 전기 기기에서 발생되는 잡음을 동시에 제거하여 기기의 동작 효율을 높일 뿐만 아니라 낙뢰로 부터 보호하여 기기의 수명을 연장할 수 있도록 하는데 본 고안의 목적이 있는 것이다.The present invention was devised to solve the above problems, and at the same time to remove the noise coming from the commercial power source and the noise generated from the electrical equipment to improve the operation efficiency of the device as well as to protect the device from lightning strikes to extend the life of the device The purpose of the present invention is to make it possible.

이하 첨부된 도면에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

제1도에서와 같이 상용 입력 전원단자(a), (a')에서 서지(surge) 흡수형 소자(C1)를 각각 병렬 연결함과 동시에, 트랜스(TS)를 접속하고, 상기 트랜스(TS)의 출력단에는 콘덴서(C2)와 콘덴서(C3), (C4)를 각각 병렬로 연결하여서 된 것으로서, 미 설명 부호 8은 부하이다.As shown in FIG. 1, surge absorbing elements C 1 are connected in parallel at commercial input power terminals a and a ', and a transformer TS is connected to the transformer TS. At the output terminal of), capacitor (C 2 ), capacitor (C 3 ), and (C 4 ) are connected in parallel, respectively, and reference numeral 8 denotes a load.

상기와 같은 구성으로 이루어진 본 고안의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention made of the above configuration as follows.

제1도에서와 같이 입력단(a), (a')에 한전측에서 부터 사용자에게 이용되기 까지 한전측 자체에서 발생하는 잡음과 선로 자체에서 발생되는 잡음 및 외부에서 발생하는 잡음, 또한 낙뢰등으로 인해 280V 이상 전압이 유도된 상태에서 입력단자(a), (a')를 통하여 전원에 인가되면 입력 단자에 병렬로 연결된 서지 흡수형 소자(2)를 통하여 접지(Ground)로 흡수 된다. (1)잡음 및 서지 전압이 제거되어 안정화 된 전원은 콘덴서(C1)에 의해 교류만을 흐르게 하여 트랜스(TS)에 인가된다.As shown in FIG. 1, the noise generated from the KEPCO side itself from the KEPCO side from the KEPCO side to the user at the input terminals (a) and (a '), the noise generated from the line itself, external noise, and lightning Therefore, when a voltage of 280V or more is induced to the power supply through the input terminals (a) and (a '), it is absorbed into the ground through the surge absorption element 2 connected in parallel to the input terminal. (1) The power stabilized by removing the noise and surge voltage is applied to the transformer TS by flowing only alternating current by the capacitor C 1 .

이때 트랜스(TS)와 콘덴서(C2∼C4)의 구성으로 저역통과 필터(Low PASS Filter) 역할을 하게 된다.At this time, the configuration of the transformer (TS) and the condenser (C 2 ~ C 4 ) serves as a low pass filter (Low PASS Filter).

즉 콘덴서(C3), (C4) 각각의 용량 리액턴스는로서 주파수가 증가하면 리액턴스가 감소하게 되며 트랜스(TS)의 유도 리액턴스는 XL=WL로서 주파수가 증가하면 리액턴스가 증가함으로서 저역 통과필터의 역할을 하게 되는 것이다.That is, the capacitance reactance of each of the capacitors C 3 and C 4 is As the frequency increases, the reactance decreases, and the inductive reactance of the transformer (TS) is X L = WL. As the frequency increases, the reactance increases, thereby acting as a low pass filter.

그러므로 사용기기 즉 부하(8) 자체에서 발생하는 내부 잡음은 저역통과 필터(3)의 콘덴서(C3), (C4)를 통하여 각각 그라운드로 흡수되게 된다.Therefore, the internal noise generated by the used device, that is, the load 8 itself, is absorbed into the ground through the capacitors C 3 and C 4 of the low pass filter 3, respectively.

따라서 상용 전원에 포함되어 입력되는 외부 잡음은 서지 흡수형 소자(2)에 의해 그라운드로 흡수되고(1) 부하 자체에서 발생하는 내부 잡음은 콘덴서(C3), (C4)각각을 거쳐 그라운드로 흡수(4), (4')되어 입력 전원 및 부하(8)에서 발생하는 잡음을 동시에 제거 할 수 있는 것이다.Therefore, the external noise included in the commercial power supply is absorbed to the ground by the surge absorption element (2), and the internal noise generated from the load itself is passed through the capacitors (C 3 ) and (C 4 ) to ground. It is absorbed (4) and (4 ') to remove noise generated at the input power and the load (8) at the same time.

제2a도는 서지 흡수형 소자(2)을 2극관 어레스터(Arrester)로 사용한 것으로 상용 전원에 포함된 잡음은 2극관 어드레스(5)를 통하여 접지로 흡수되고 부하에서 발생하는 내부 잡음은 저역통과 필터(3)에 의하여서 그라운드로 흡수된다.Figure 2a is a surge absorbing element (2) is used as a dipole tube arrester (Arrester), the noise contained in the commercial power supply is absorbed to the ground through the dipole tube address (5) and the internal noise generated from the load is a low pass filter Absorbed to ground by (3).

제2a도 내지 제2c도는 서지 흡수형 소자(2)를 3극관 어레스터(6) 및 대칭 제너 다이오드(7)를 각가 사용한 것으로서, 상기와 동일한 작용을 하여 상용 전원에서 입력되는 잡음과 부하(8) 자체에서 발생되는 잡음을 동시에 흡수할 수 있도록 한 것이다.2A to 2C show that the surge absorption element 2 uses a triode arrester 6 and a symmetric zener diode 7, each having the same function as the noise and load input from a commercial power source. ) To absorb the noise generated by itself at the same time.

이상에서 서술한 바와 같이 부하(8) 측에서만 잡음을 제거하는 종래의 것에 비하여 상용 전원에 포함되어 있는 신로 선상의 충격성 잡음 및 임펄스성 잡음, 스위치의 "온" "오프"시 발생되는 잡음을 제거함은 물론 저역 통과 필터(3)에 의해 사용 기기, 즉 부하(8)측에서 발생하는 잡음을 동시에 흡수할 수 있어 기기의 안정적인 동작으로 신뢰도를 높일 수 있는 유용한 고안인 것이다.As described above, compared to the conventional method of removing noise only on the load 8 side, the shock noise and impulsive noise on the wire line included in the commercial power supply and the noise generated when the switch is turned "on" and "off" are removed. Of course, the low pass filter (3) can be used to absorb the noise generated in the device, that is, the load (8) at the same time is a useful design that can increase the reliability by the stable operation of the device.

Claims (1)

상용 입력 전원단자(a), (a')에서 서지 흡수형 소자(2) 콘덴서(C1)를 각각 병렬 연결함과 동시에 출력측에 트랜스(TS)와 콘덴서(C2) 및 콘덴서(C3), (C4)로 이루어진 저역 통과 필터(3)를 연결하여서 된 것으로 사용 입력전원에 포함된 잡음과 부하(8)측에서 발생하는 잡음을 동시에 흠수할 수 있는 것을 특징으로 하는 서지(SURGE) 보호기능을 갖는 잡음 제거필터.Connect the surge absorbing element (2) capacitor (C 1 ) in parallel at the commercial input power terminals (a) and (a '), respectively, and at the output side, the transformer (TS), the capacitor (C 2 ), and the capacitor (C 3 ). SURGE protection, characterized by the connection of the low pass filter (3) consisting of (C 4 ), which can simultaneously impair the noise contained in the input power supply and the noise generated from the load (8) side Noise canceling filter with function.
KR2019880000633U 1988-01-26 1988-01-26 Noise filter with protective function from surge KR910008519Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019880000633U KR910008519Y1 (en) 1988-01-26 1988-01-26 Noise filter with protective function from surge

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KR2019880000633U KR910008519Y1 (en) 1988-01-26 1988-01-26 Noise filter with protective function from surge

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KR890016788U KR890016788U (en) 1989-08-19
KR910008519Y1 true KR910008519Y1 (en) 1991-10-21

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