KR200152725Y1 - Timing circuit for a stating - Google Patents
Timing circuit for a stating Download PDFInfo
- Publication number
- KR200152725Y1 KR200152725Y1 KR2019960022674U KR19960022674U KR200152725Y1 KR 200152725 Y1 KR200152725 Y1 KR 200152725Y1 KR 2019960022674 U KR2019960022674 U KR 2019960022674U KR 19960022674 U KR19960022674 U KR 19960022674U KR 200152725 Y1 KR200152725 Y1 KR 200152725Y1
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- diode
- emi
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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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
본 고안은 리세트시에 발생하는 타이밍을 빠르게 기동시켜 기동특성을 개선시키는 기동부와, 콘덴서 용량을 조절하여 턴온 지연시간을 20ms이상 구현시키는 콘덴서 용량 조절부로 이루어진 기동 타이밍 개선부에 의해 회로의 구성을 간단하게 함과 동시에 코스트를 절감시킬 수 있게 한 것이다.The present invention is constructed by a start timing improving part including a start part for quickly starting timing occurring at reset to improve starting characteristics and a condenser capacity adjusting part for adjusting turnover delay time by 20 m or more by adjusting the capacitor capacity. It is to simplify the cost and to reduce the cost.
Description
제1도는 종래 기동 타이밍회로의 구성 예시도.1 is a diagram illustrating a configuration of a conventional start timing circuit.
제2도는 본 고안에 따른 기동 타이밍회로의 구성 예시도.2 is a diagram illustrating a configuration of a start timing circuit according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : EMI필터부 20 : 정류부10: EMI filter unit 20: rectifier unit
30 : SCR회로부 40 : 기동부30: SCR circuit part 40: starting part
50 : 콘덴서 용량 조절부 60 : 기동 타이밍 개선부50: capacitor capacity adjusting unit 60: starting timing improving unit
본 고안은 SMPS(Switching Mode Power Supply)에서의 기동 타이밍회로에 관한 것으로, 특히 PWM(Pulse Width Modulation)IC를 구동시키는 SCR회로부와, 저항을 삭제하여 회로구성을 간단하게 함과 동시에 리세트시에 발생하는 타이밍을 빠르게 기동시켜 기동특성을 개선시키고, 이와 동시에 보조권선에 연결된 콘덴서 용량을 조정하여 턴온 지연시간(Turn On Delay Timing)을 20ms이상 구현시킬 수 있게 하는 기동 타이밍회로에 관한 것이다.The present invention relates to a start timing circuit in a switching mode power supply (SMPS), and more particularly, an SCR circuit unit for driving a pulse width modulation (PWM) IC, a resistor, and a circuit configuration to be simplified and reset at the same time. The present invention relates to a start timing circuit that enables to generate a turn-on delay time of 20 ms or more by quickly starting a timing to improve starting characteristics and simultaneously adjusting a capacitor capacity connected to an auxiliary winding.
종래의 기동 타이밍회로는 제1도에 도시되어 있다. 제1도에 도시한 종래의 기동 타이밍회로는 트랜스(T)의 권선에 유도되는 EMI(Electromagnetic)를 필터링하는 EMI필터부(10)와, 필터링된 EMI를 정류시키는 정류부(20)와, 리세트시 기동 타이밍을 실현시키기 위한 SCR회로부(20)로 구성된다.The conventional start timing circuit is shown in FIG. The conventional starting timing circuit shown in FIG. 1 includes an EMI filter unit 10 for filtering EMI induced in a winding of a transformer T, a rectifying unit 20 for rectifying filtered EMI, and a reset. An SCR circuit section 20 is provided for realizing start-up timing.
이와 같이 구성된 종래의 기동 타이밍회로는 커플링 콘덴서(C1)와, 정류 다이오드(D1) 및 저항(R1)(R2)을 통해 SCR회로부(30)를 초기 구동시키고, SCR회로부가 구동을 시작하면 FET(도면에 도시생략됨)가 구동하여 스위칭시킴으로써 리세트시 기동 타이밍을 실현시킨다.The conventional start timing circuit configured as described above initially drives the SCR circuit unit 30 through the coupling capacitor C1, the rectifying diode D1, and the resistors R1 and R2, and when the SCR circuit unit starts to drive, the FET (Not shown in the figure) is driven to switch to realize start timing at reset.
그런데 이런 종래의 기동 타이밍회로는 저항소자와, SCR회로부를 구성함으로써 이에 따른 회로의 구성이 매우 복잡하고, 또한 코스트를 상승시키는 등 단점이 있다.However, such a conventional start timing circuit has a disadvantage in that the configuration of the circuit is very complicated and the cost is increased by configuring the resistance element and the SCR circuit portion.
본 고안은 상기와 같은 종래의 문제점을 해결하고자 이루어진 것으로서, 그 목적은 PWMIC를 구동시키는 SCR회로부와, 저항을 삭제하여 회로구성을 간단하게 함과 동시에 리세트시 발생하는 타이밍을 빠르게 기동시켜 기동특성을 개선시키고, 이와 동시에 보조권선에 연결된 콘덴서 용량을 조정하여 턴온 지연시간을 20ms이상 구현시킬 수 있도록 하는데 있다.The present invention has been made to solve the conventional problems as described above, the object of which is to start the SCR circuit unit for driving the PWMIC, and the resistor to simplify the circuit configuration and at the same time to quickly start the timing generated during the reset characteristics In addition, by adjusting the capacity of the capacitor connected to the auxiliary winding, the turn-on delay time can be realized more than 20ms.
상기의 목적을 달성하고자 본 고안의 특징은, 트랜스의 권선에 유도되는 EMI를 필터링하는 EMI필터부와, 필터링된 EMI를 정류시키는 정류부를 구비하고 있는 기동 타이밍회로에 있어서: 접지단에 애노드 단자가 연결되어 있는 다이오드의 캐소드 단자와 상기 EMI필터부의 출력단 사이에 연결되어 있는 콘덴서와, 상기 콘덴서와 다이오드의 연결단에 애노드 단자가 연결되고 캐소드 단자에는 소정 양전압 입력단이 연결되는 정류 다이오드와, 상기 정류 다이오드의 캐소드 단자와 상기 양전압 입력단의 연결점과 접지단 사이에 연결되는 저항과, 상기 저항에 병렬연결되어 RC공진회로를 구성하되 설정되는 자체의 용량성분의 크기에 따라 시정수를 변경하는 콘덴서, 및 상기 콘덴서의 양단에 직렬로 연결되어 있는 제1코일과 역방향 다이오드 및 부전압 트랜스포머로 구성되어 턴온 지연시간을 설정하는데 있다.In order to achieve the above object, a feature of the present invention is a start timing circuit having an EMI filter unit for filtering EMI induced in a winding of a transformer and a rectifying unit for rectifying filtered EMI: A capacitor connected between the cathode terminal of the diode connected to the output terminal of the EMI filter unit, a rectifier diode having an anode terminal connected to the connection terminal of the capacitor and the diode, and a positive positive voltage input terminal connected to the cathode terminal; A capacitor connected between the cathode terminal of the diode and the connection point of the positive voltage input terminal and the ground terminal, and a capacitor connected in parallel with the resistor to configure an RC resonant circuit, the time constant being changed according to the size of its own capacitance component; And a first coil, a reverse diode, and a negative voltage transistor connected in series to both ends of the capacitor. Consists of the former is set to the turn-on delay time.
이를 첨부 도면에 의거하여 본 고안을 상세히 설명하면 다음과 같다.The present invention will be described in detail with reference to the accompanying drawings as follows.
제2도는 본 고안에 의한 기동 타이밍회로도로서, 제2도에 도시한 바와 같이, 트랜스(T)의 권선에 유도되는 EMI를 필터링하는 EMI필터부(10)와, 필터링된 EMI를 정류시키는 정류부(20)사이에 리세트시에 발생하는 스타트-업 타이밍을 개선시키는 기동 타이밍 개선부(60)를 연결하여 구성한 것이다.2 is a start timing circuit diagram according to the present invention, and as shown in FIG. 2, an EMI filter unit 10 for filtering EMI induced in a winding of a transformer T, and a rectifying unit for rectifying the filtered EMI ( The start timing improvement unit 60 which connects the start-up timing generated at the time of reset during the reset is connected to each other.
상기 기동 타이밍 개선부(60)는 리세트시에 발생하는 타이밍을 빠르게 기동시켜 기동특성을 개선시키는 기동부(40)와, 콘덴서 용량을 조절하여 턴온 지연시간을 20ms이상 구현시키는 콘덴서 용량 조절부(50)로 구성된다.The starting timing improving unit 60 includes a starting unit 40 for quickly starting the timing generated at the time of reset to improve the starting characteristics, and a condenser capacitance adjusting unit for adjusting turn-on delay time to 20 ms or more by adjusting the capacitor capacity ( 50).
상기 기동부(40)는 리세트시 발생하는 스타트-업 타이밍을 빠르게 기동시키는 다이오드(D1)로 구성된다.The starter 40 is composed of a diode D1 for quickly starting the start-up timing that occurs during reset.
상기 콘덴서 용량 조절부(50)는 콘덴서 용량을 조정하는 콘덴서(C3)로 구성된다.The capacitor capacitance adjusting unit 50 is composed of a capacitor (C3) for adjusting the capacitor capacity.
상기의 구성과 같이, PWM IC를 구동시키는 SCR회로부와, 저항소자를 삭제함으로써 리세트시에 발생하는 스타트-업 타이밍을 기동부(40)내의 직접 다이오드(D1)를 통해 기동시켜 기동특성을 개선시키고, 이와 동시에 콘덴서 용량 조절부(50)내의 보조권선에 연결된 콘덴서(C3)의 용량을 조절하여 턴온 지연시간을 20ms 이상 구현시킨다.As described above, the start-up timing generated at the time of reset by eliminating the resistance element and the SCR circuit unit for driving the PWM IC is started through the direct diode D1 in the starter 40 to improve the start-up characteristics. At the same time, the turn-on delay time is realized by 20 ms or more by adjusting the capacity of the capacitor C3 connected to the auxiliary winding in the capacitor capacity adjusting unit 50.
이와 같이 본 고안은 SCR회로부와 저항소자를 삭제해주므로써 회로구성을 간단하게 함과 동시에 코스트를 절감시켰으며, 또한 리세트시에 발생하는 타이밍을 빠르게 기동시켜 기동특성을 개선시키고, 또한 콘덴서의 용량을 조절하여 턴온 지연시간을 20ms이상 구현시켜 주는 효과가 있다.As such, the present invention simplifies the circuit configuration and reduces the cost by eliminating the SCR circuit part and the resistance element, and also improves the starting characteristics by quickly starting the timing generated during reset, and also increases the capacitor capacity. By adjusting the effect, the turn-on delay time is 20ms or more.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019960022674U KR200152725Y1 (en) | 1996-07-30 | 1996-07-30 | Timing circuit for a stating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019960022674U KR200152725Y1 (en) | 1996-07-30 | 1996-07-30 | Timing circuit for a stating |
Publications (2)
Publication Number | Publication Date |
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KR980009890U KR980009890U (en) | 1998-04-30 |
KR200152725Y1 true KR200152725Y1 (en) | 1999-07-15 |
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Application Number | Title | Priority Date | Filing Date |
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KR2019960022674U KR200152725Y1 (en) | 1996-07-30 | 1996-07-30 | Timing circuit for a stating |
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KR (1) | KR200152725Y1 (en) |
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1996
- 1996-07-30 KR KR2019960022674U patent/KR200152725Y1/en not_active IP Right Cessation
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