KR820000414Y1 - Active ripple filter - Google Patents

Active ripple filter Download PDF

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Publication number
KR820000414Y1
KR820000414Y1 KR2019810002306U KR810002306U KR820000414Y1 KR 820000414 Y1 KR820000414 Y1 KR 820000414Y1 KR 2019810002306 U KR2019810002306 U KR 2019810002306U KR 810002306 U KR810002306 U KR 810002306U KR 820000414 Y1 KR820000414 Y1 KR 820000414Y1
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KR
South Korea
Prior art keywords
power supply
diode
circuit
ripple
time constant
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Application number
KR2019810002306U
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Korean (ko)
Inventor
최학기
Original Assignee
삼성전자공업주식회사
강진구
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Application filed by 삼성전자공업주식회사, 강진구 filed Critical 삼성전자공업주식회사
Priority to KR2019810002306U priority Critical patent/KR820000414Y1/en
Priority to US06/337,162 priority patent/US4433368A/en
Application granted granted Critical
Publication of KR820000414Y1 publication Critical patent/KR820000414Y1/en
Priority to GB8209192A priority patent/GB2098368B/en
Priority to JP1990060717U priority patent/JPH0615298Y2/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/14Arrangements for reducing ripples from dc input or output

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Rectifiers (AREA)

Abstract

내용 없음.No content.

Description

상용입력 전원의 자동변환 전원장치에서의 맥동성분 제거장치Pulsation component removal device in automatic conversion power supply of commercial input power

제1도는 상용입력전원의 자동전환 전원장치의 개략회로도1 is a schematic circuit diagram of an automatic switching power supply of commercial input power supply

제2도는 종래에 사용되던 리플 제거회로2 is a conventional ripple cancellation circuit.

제3도는 본 고안의 맥동성분 제거장치 회로도3 is a circuit diagram of the pulsating component removing device of the present invention

본 고안은 상용임력전원의 자동변환 전원장치에 사용되는 능동소자를 이용한 맥동성분 제거회로(Active Ripple Filter)에 관한 것이다.The present invention relates to a pulsation component removal circuit (active ripple filter) using an active element used in the automatic conversion power supply of commercial power supply.

제1도와 같이 1981년도 본 출원인이 본 고안과 동일자로 실용신안등록출원(출원번호 제2305호)한 광대역으로 입력되는 전압을 전압 자동조절회로(V)를 이용하여 일정 전압을 제한한 후, 리플을 제거하면서도 초기과도전류 등과 같은 과도전류를 제한하여 전자기기의 회로를 보호할 수 있도록 하는 상용입력 전원의 자동변환 전원장치 및 이와 유사하게 상용입력전원의 위상을 제어하여 일정전압으로 제한한후, 리플을 제거하는 회로에서는 일반적으로 전원투입의 동작개시로부터 정상동작 상태까지 도달하는데 걸리는 과도 기간이 수초정도 요하므로 전자기기가 신속하게 동작되지 못하는 결점이 있다.As shown in Fig. 1, after the applicant applied the utility model registration application (Application No. 2305) in 1981 with the same as the present invention, the voltage was input by using a voltage automatic control circuit (V) to limit a certain voltage, and then ripple. Automatic power supply of commercial input power supply to protect the circuit of the electronic device by limiting the transient currents such as initial transient current while removing the voltage, and similarly by controlling the phase of the commercial input power supply to limit the constant voltage, Ripple elimination circuits typically require a few seconds of transient time from the start of the power supply to the normal operating state, resulting in an inability to quickly operate the electronics.

왜냐하면 제2도와 같은 종래의 리플 제거회로에서는 수 10Ω∼수 100Ω 정도의 비교적 낮은 저항치(Ra)를 트랜지스터(Q1)와 션트(Shunt)시켜 전자기기의 빠른 동작개시를 가능하게 하였지만 제1도와 같은 상용입력전원의 자동변환 전원장치에 있어서는 션트저항(Ra)을 설치하면 입력 AC전압이 220V정도의 높은 전압으로 동작할 때에는 초기 전원투입시 발생하는 높은 서지(Surge) 전압이 션트 저항(Ra)를 통해 출력측에 나타나므로 원하는 정전압을 얻을 수가 없을 뿐만 아니라 부하가 개방되어 있던가 감소되어 있다면 션트저항(Ra)를 통해 넘어온 높은 전압이 출력에 나타나므로 전원회로 및 전자기기 안정상 적절한 것이 못된다. 따라서 션트저항(Ra)를 설치할 수 없기 때문에 결과적으로 전자기기가 신속하게 동작하지 못하는 문제점을 필연적으로 가지게 된다.In the conventional ripple cancellation circuit as shown in FIG. 2, a relatively low resistance value Ra of about 10Ω to about 100Ω is shunted with the transistor Q 1 to enable rapid operation of the electronic device. In the automatic conversion power supply of commercial input power supply, when the shunt resistor (Ra) is installed, when the input AC voltage is operated at a voltage of about 220V, the high surge voltage generated at the initial power supply turns the shunt resistor (Ra) into Because it appears on the output side, the desired constant voltage is not obtained, and if the load is open or reduced, the high voltage passed through the shunt resistor (Ra) appears on the output, which is not suitable for the power circuit and electronic equipment stability. Therefore, since the shunt resistor (Ra) can not be installed, there is inevitably a problem that the electronic device does not operate quickly.

본 고안은 상기와 같은 결점을 해소하고자 안출한 것으로 이를 상세히 설명하면 다음과 같다.The present invention has been devised to solve the above-described drawbacks.

즉, 본 고안의 구성은 제2도와 같이 트랜지스터(Q1-Q4) 저항(Ra, R1-R9), 콘덴서(C1, C2), 다이오드(D1,D2)로 구성된 통상의 리플제거회로에 있어서, 제3도와 같이 트랜지스터(Q3)의 베이스에 저항(R1,R2), 콘덴서(C1), 다이오드(D3)로 구성된 시정수가 긴 적분회로부(1)와 이에 저항(R11,R10), 콘덴서(C3), 다이오드(D4)로 구성된 시정수가 짧은 적분회로부(2)를 재조합 연결하여서 된 것이다.That is, the structure of the present invention is generally composed of transistors Q 1 -Q 4 resistors Ra, R 1 -R 9 , capacitors C 1 , C 2 , and diodes D 1 , D 2 , as shown in FIG. 2 . In the ripple cancellation circuit of Fig. 3, the integral circuit portion 1 having a long time constant composed of resistors R 1 , R 2 , a capacitor C 1 , and a diode D 3 is formed at the base of the transistor Q 3 as shown in FIG. 3 . This is achieved by recombining the integral circuit part 2 having a short time constant composed of resistors R 11 , R 10 , capacitor C 3 , and diode D 4 .

이와같은 본 고안은 제2도에서 션트저항(Ra)을 제거한 상태가 통상적안 리플 제거회로인데, 이는 정상동작상태까지 도달하는 시간이 저항(R1)과 콘덴서(C1)의 곱으로 표현되고, 출력전류의 리플함유율을 적게하기 위해서는 이값이 클수록 유리한 것이다.In the present invention, the state in which the shunt resistor Ra is removed in FIG. 2 is a conventional ripple cancellation circuit, and the time to reach the normal operation state is expressed as the product of the resistor R 1 and the capacitor C 1 . In order to reduce the ripple content of the output current, a larger value is advantageous.

따라서 출력 직류전류의 리플 함유율을 만족할만한 정도까지 도달하면 위와같은 시정수 값은 상당히 길어져서 문제가 되므로 이 결점을 해결하기 위해 제3도와 같이 트랜지스터(Q3)에 베이스 전류를 공급하기위해 저항(R1)(R2), 콘덴서(C1)로 구성된 시정수가 긴 적분회로부(1)와 저항(R11)(R10), 콘덴서(C3)로 구성된 시정수가 짧은 적분회로부(2)를 두어서, 초기 과도 동작상태는 시정수가 짧은 적분회로부(2)가 동작하여 다이오드(D4)를 통해 신속히 트랜지스터(Q3)의 베이스에 전류를 공급하여 줌으로서 맥동성분 회로를 동작시키고, 정상동작 상태에 도달한 이후에는 시정수가 긴 적분회로부(1)가 동작하여, 다이오드(D3)를 통해 트랜지스터(Q3)의 베이스에 전류를 공급하게 함으로서 리플 함유율을 줄이면서 원하는 짧은 시간내에 정상상태에 도달할 수 있다.Thus, the output time constant value of the ripple content of the DC current reaches the extent satisfying the above is quite long so since the problem to supply the base current to the transistor (Q 3) as a third help to address this defect resistance ( Integral circuit part 1 having a long time constant composed of R 1 ) (R 2 ) and condenser C 1 and an integral circuit part 2 having short time constant composed of resistors R 11 (R 10 ) and condenser (C 3 ) In the initial transient operation state, the pulsating component circuit is operated by supplying a current to the base of the transistor Q 3 quickly through the diode D 4 by operating the integral circuit part 2 having a short time constant, and operating normally. After reaching the state, the integrating circuit part 1 having a long time constant operates to supply current to the base of the transistor Q 3 through the diode D 3 , thereby reducing the ripple content and returning to the steady state within a desired short time. Degree Can.

이때, 저항(R1)(R2)의 블리더에 의한 다이오드(D3)의 애노드전위와 저항(R10)(R11)의 블리더에 의한 다이오드(D4)의 애노드 전위는 각각 시간이 경과하여 정상치에 도달했을 때는 다이오드(D3)의 애노드쪽 전위를 약간 높은 값으로 설정해 놓았기 때문에 다이오드(D4)는 차단되어 전류가 흐르지 못하게 된다. 그러므로 시정수가 커서 출력 직류전류의 리플함유율을 작게하는데 유리한 저항(R1)(R2) 및 콘덴서(C1), 다이오드(D3)를 통하여 트랜지스터(Q3)의 베이스에 전류를 공급하게되어 정상동작을 하게된다.At this time, the anode potential of the diode D 3 by the bleeder of the resistor R 1 (R 2 ) and the anode potential of the diode D 4 by the bleeder of the resistor R 10 (R 11 ) are respectively time When the elapsed time is reached, the anode potential of the diode D 3 is set to a slightly higher value, so that the diode D 4 is cut off to prevent current from flowing. Therefore, since the time constant is large, current is supplied to the base of the transistor Q 3 through the resistors R 1 , R 2 , capacitor C 1 , and diode D 3 , which are advantageous for reducing the ripple content of the output DC current. Normal operation is performed.

이상과 같은 본 고안은 션트저항을 사용하지 못하는 상용입력전원의 자동변환전원장치 등의 리플제거회로에서 정상동작에 도달하는 과도기간을 대폭 단축할 수 있는 특징을 지진 것이다.The present invention as described above is a feature that can significantly reduce the transient period to reach the normal operation in the ripple cancellation circuit, such as automatic conversion power supply of commercial input power source that does not use a shunt resistor.

Claims (1)

상용입력전원의 자동변환 전원장치나 이와 유사한 장치에 이용되는 리플 제거회로에 다이오드(D3)를 연결하고, 이에 시정수가 짧은 적분 회로부(2)를 연결하여서 됨을 특징으로 하는 상용입력 전원의 자동변환 전원장치에서의 맥동성분 제거장치.Automatic conversion of commercial input power Automatic conversion of commercial input power by connecting a diode (D 3 ) to the ripple cancellation circuit used in a power supply or similar device, and by connecting an integral circuit section (2) with a short time constant Pulsation component removal device from power supply.
KR2019810002306U 1981-04-01 1981-04-01 Active ripple filter KR820000414Y1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR2019810002306U KR820000414Y1 (en) 1981-04-01 1981-04-01 Active ripple filter
US06/337,162 US4433368A (en) 1981-04-01 1982-01-05 Power supply circuit for a variable electrical source
GB8209192A GB2098368B (en) 1981-04-01 1982-03-29 Ac to dc converter circuit
JP1990060717U JPH0615298Y2 (en) 1981-04-01 1990-06-11 Continuously variable power supply circuit without switching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019810002306U KR820000414Y1 (en) 1981-04-01 1981-04-01 Active ripple filter

Publications (1)

Publication Number Publication Date
KR820000414Y1 true KR820000414Y1 (en) 1982-03-27

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Application Number Title Priority Date Filing Date
KR2019810002306U KR820000414Y1 (en) 1981-04-01 1981-04-01 Active ripple filter

Country Status (1)

Country Link
KR (1) KR820000414Y1 (en)

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