KR850000503Y1 - Power supply circuit - Google Patents

Power supply circuit Download PDF

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Publication number
KR850000503Y1
KR850000503Y1 KR2019830007147U KR830007147U KR850000503Y1 KR 850000503 Y1 KR850000503 Y1 KR 850000503Y1 KR 2019830007147 U KR2019830007147 U KR 2019830007147U KR 830007147 U KR830007147 U KR 830007147U KR 850000503 Y1 KR850000503 Y1 KR 850000503Y1
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South Korea
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circuit
power supply
voltage
switching
transformer
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KR2019830007147U
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Korean (ko)
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KR850002220U (en
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김학운
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삼성전자공업주식회사
정재은
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    • 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
    • H02M1/16—Means for providing current step on switching, e.g. with saturable reactor
    • 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
    • H02M1/36—Means for starting or stopping converters
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

내용 없음.No content.

Description

스위칭 모우드 전원공급기의 초기전원 인가회로Initial power supply circuit of switching mode power supply

제1도는 본 고안의 계통도.1 is a schematic diagram of the present invention.

제2도는 본 고안의 회로도이다.2 is a circuit diagram of the present invention.

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

1 : 배전압 정류회로 2 : 전원구동회로1: double voltage rectifier circuit 2: power drive circuit

3 : 평활회로 4 : 트랜스포머3: smoothing circuit 4: transformer

5 : 스위칭회로 6 : 출력회로5: switching circuit 6: output circuit

5A : 댐핑 및 스노버회로 5B : 스위칭용 트랜지스터5A: damping and snorkel circuit 5B: switching transistor

TEA 1001 : 스위칭용 레귤레이터 집적회로TEA 1001: Regulator Integrated Circuits for Switching

1N1, 1N2: 교류전압입력단 T1, T2, T3: 트랜스포머(4)의 1, 2, 3, 차측1N 1 , 1N 2 : AC voltage input terminal T 1 , T 2 , T 3 : 1, 2, 3, secondary side of transformer 4

Vcc : 스위칭용 레귤레이터 집적회로(TEA 1001)의 전원단자Vcc: Power terminal of switching regulator integrated circuit (TEA 1001)

Vout : 스위칭용 레귤레이터 집적회로(TEA1001)의 출력단자Vout: Output terminal of switching regulator integrated circuit (TEA1001)

본 고안은 스위칭모우드 전원공급기의 전원스위치를 온(ON)시킬때에 발생되는 초기 충격전압을 스위칭용 레귤레이터 집적회로에 인가하므로서 스위칭 모우드 전원공급기를 구동시키는 전자회로에 관한 것이다.The present invention relates to an electronic circuit for driving the switching mode power supply by applying the initial impact voltage generated when the power switch of the switching mode power supply (ON) to the switching regulator integrated circuit.

종래의 스위칭용 레귤레이터 집적회로에 있어서는 동작전압을 교류입력단에서 변도의 트랜스포머와 정류회로를 사용하여 공급하였는데 이러한 트랜스포머와 정류회로의 설치로 인하여 전체제품의 크기가 대형화되고 제조원가가 상승하게 되었다.In the conventional switching regulator integrated circuit, the operating voltage was supplied using a transformer and a rectifier circuit of a variable voltage at an AC input stage. The installation of the transformer and the rectifier circuit increased the size of the entire product and increased the manufacturing cost.

본 고안은 상기한 종래의 스위칭용 레귤레이터 집적회로에 인가되는 전압회로의 문제점을 개선한 것으로 배전압정류회로와 스위칭용 레귤레이터 집적회로(TEA1001)사이에 전원 구동회로를 결합하여 전원스위치가 온(ON)될때에 발생되는 초기충격 전압을 전원구동회로를 통해서 스위칭용 레귤레이터 집적회로(TEA1001)의 직류전원으로 공급하므로써 트랜스포머에 걸린 전류를 유기시켜 스위칭 모우드 전원공급기를 구동시키도록 된 것인바 이로부터 제품의 소형화와 원가절감의 효과를 구현코자 함에 고안의 목적이 있다.The present invention improves the problems of the voltage circuit applied to the conventional switching regulator integrated circuit as described above. The power switch is turned on by coupling a power supply driving circuit between the double voltage rectifying circuit and the switching regulator integrated circuit (TEA1001). By supplying the initial shock voltage generated at the time of power supply circuit to the DC power supply of the switching regulator integrated circuit (TEA1001) through the power supply circuit, the current applied to the transformer is induced to drive the switching mode power supply. The purpose of the present invention is to realize the effect of miniaturization and cost reduction.

이하 본 고안의 구성 및 작용, 효과를 예시도면에 의거 상세히 설명하면 다음과 같다.Hereinafter, the configuration, operation, and effects of the present invention will be described in detail with reference to the accompanying drawings.

본 고안은 통상적인 배전압 정류회로(1)에 저항(R3)(R4), 콘덴서(C3), 다이오드(D1)(D2) 및 트랜지스터(TR1)로 구성되는 전원구동회로(2)를 연결하고, 전원구동회로(2)의 출력단에는 스위칭용 레귤레이터 집접회로(TEA1001)의 전원단자(Vcc)와 평활회로(3)를 연결하며, 평활회로(3)의 입력단에는 트랜스포머(4)의 2차측(T2)을 연결하고, 트랜지스포머(4)의 1, 3차측(T1)(T3)에는 스위칭회로(5)와 출력회로(6)를 결합시킨 구조로 되어 있다.The present invention is a power supply circuit consisting of a resistor (R 3 ) (R 4 ), a capacitor (C 3 ), a diode (D 1 ) (D 2 ) and a transistor (TR 1 ) in a conventional double voltage rectifier circuit (1). (2), the output terminal of the power supply driving circuit (2) is connected to the power supply terminal (Vcc) and the smoothing circuit (3) of the switching regulator integrated circuit (TEA1001), and to the input of the smoothing circuit (3) 4) is connected to the secondary side (T 2 ), and the switching circuit (5) and the output circuit (6) is coupled to the primary, tertiary side (T 1 ) (T 3 ) of the transformer (4). It is.

미설명부호 5A는 댐핑 및 스노버회로, 5B스위칭용 트랜지스터, IN1, IN2는 교류전압입력단을 나타낸다.Reference numeral 5A denotes a damping and snorkel circuit, 5B switching transistors, and IN 1 and IN 2 denote AC voltage input terminals.

제1도는 상기한 구조로 되어 있는 본 고안의 계통도로서 본 고안에 전원스위치를 온(ON)시킬때 발생되는 초기 충격전압은 배전압 정류회로(1)에 공급된다.FIG. 1 is a system diagram of the present invention having the above-described structure, and the initial shock voltage generated when the power switch is turned on in the present invention is supplied to the double-voltage rectifier circuit 1.

배전압 정류회로(1)를 통과한 초기 충격전압은 전원구동회로(2)를 구동시켜서 스위칭용 레귤레이터 집적회로(TEA1001)의 전원단자(Vcc)에 인가되며, 인가된 전압은 스위칭용 레귤레이터 집적회로(TEA1001) 내부에 있는 논리적인 로직에 의해서 출력단자(Vout)를 통해 구형파의 속도파형으로 반환되어 스위칭회로(5)에 공급된다.The initial shock voltage passing through the double voltage rectifying circuit 1 drives the power supply driving circuit 2 and is applied to the power supply terminal Vcc of the switching regulator integrated circuit TEA1001, and the applied voltage is applied to the switching regulator integrated circuit. The logic logic inside the TEA1001 returns the speed waveform of the square wave through the output terminal Vout and supplies it to the switching circuit 5.

한편, 입력교류전압(110/220V)은 배전압 정류회로(1)를 통해서 정류전압으로 변환되어 트랜스포머(4)의 1차측(T1)에 인가되고 인가된 전압이 스위칭회로(5)에 공급된 상태에서는 스위칭 레귤레이터 집적회로(TEA1001)의 출력단자(Vout)를 통한 구형파의 속도파형에 의해 스위칭회로(5)의 스위칭용 트랜지스터가 턴온(TURN ON)되므로 트랜스 포머(4)의 1차측(T1)에 전류가 흘러서 2, 3차측(T2)(T3)에는 변환전류가 유기된다.On the other hand, the input alternating voltage (110 / 220V) is converted into a rectified voltage through the double voltage rectifying circuit 1 is applied to the primary side (T 1 ) of the transformer 4 and the applied voltage is supplied to the switching circuit (5) In this state, the switching transistor of the switching circuit 5 is turned on by the speed waveform of the square wave through the output terminal Vout of the switching regulator integrated circuit TEA1001, so that the primary side T of the transformer 4 is turned ON. 1 ) Current flows to the secondary and tertiary side T 2 (T 3 ) to induce a conversion current.

따라서, 트랜스포머(4)의 2차측(T2)에 유기된 전압은 평활회로(3)를 통해서 스위칭용 레귤레이터 집적회로(TEA1001)의 전원단자(Vcc)에 직류전원으로 공급되고, 트랜스포머(4)의 3차측(T3)에 유기된 전압은 출력회로(7)에 공급된다.Therefore, the voltage induced on the secondary side T 2 of the transformer 4 is supplied to the power supply terminal Vcc of the switching regulator integrated circuit TEA1001 through the smoothing circuit 3 as a DC power supply, and the transformer 4 The induced voltage on the tertiary side T 3 of is supplied to the output circuit 7.

이상과 같은 계통적 신호흐름에 의해서 동작하는 본 고안을 구체적인 회로동작에 입각하여 설명하면 다음과 같다.The present invention operating based on the systematic signal flow as described above will be described based on the specific circuit operation.

제2도는 스위칭 모우드 전원공급기의 회로도로서 전원스위치를 온(ON)시킬때에 발생되는 초기충격전압은 정류회로(RD)와 콘덴서(C1)(C2) 및 저항(R1)(R2)으로 구성되는 배전압 정류회로(1)에 인가되고, 배전압 정류회로(1)를 통과한 초기 충격전압은 전원구동회로(2)에 공급된다.2 is a circuit diagram of a switching mode power supply. The initial shock voltage generated when the power switch is turned ON includes the rectifier circuit RD, the capacitor C 1 , C 2 , and the resistor R 1 (R 2 ). Is applied to the double voltage rectifying circuit 1, and the initial shock voltage passing through the double voltage rectifying circuit 1 is supplied to the power source driving circuit 2.

전원구동회로(2)는 콘덴서(C3), 저항(R3)(R4), 다이오드(D1)(D2) 및 트랜지스터(TR1)로 구성되므로, 배전압 정류회로(1)에서 정류된 직류전압은 저항(R4)을 통해 트랜지스터(TR1)의 콜렉터에 공급되며, 콘덴서(C3)와 저항(R3) 및 정전압 다이오드(D2)를 통한 정전압 전원은 트랜지스터(TR1)의 베이스에 인가된다.The power supply driving circuit 2 is composed of a capacitor C 3 , a resistor R 3 , R 4 , a diode D 1 , D 2 , and a transistor TR 1 , so that the rectified DC voltage is supplied to the collector of the transistor (TR 1) via a resistor (R 4), capacitor (C 3) and a resistor (R 3) and a constant voltage power supply through a zener diode (D 2) is a transistor (TR 1 Is applied to the base.

따라서 트랜지스터(TR1)를 통과한 정전압은 스위칭용 레귤레이터 집적회로(TEA1001)의 전원단자(Vcc)에 인가되고, 인가된 전압은 집적회로(TEA1001)내부에 있는 논리적인 로직에 의해서 구형파로 변환되어 출력단자(Vout)에 나타나게 된다. 이러한 구형파는 20KHz의 속도파형으로서 스위칭회로(5)의 저항(R9)에 인가되고, 저항(R9)을 통한 구형파는 스위칭용 트랜지스터(TR2)의 베이스에 공급되어 스위칭용 트랜지스터(TR2)의 베이스에 공급되어 스위칭용 트랜지스터(TR2)를 턴온(TURN ON)상태로 만든다.Therefore, the constant voltage passing through the transistor TR 1 is applied to the power supply terminal Vcc of the switching regulator integrated circuit TEA1001, and the applied voltage is converted into a square wave by logical logic inside the integrated circuit TEA1001. Appears on the output terminal (Vout). This square wave is applied to the resistance (R 9) of the switching circuit 5 as the speed waveform of 20KHz, a square wave via a resistor (R 9) is supplied to the base of the switching transistor (TR 2) for the switching transistor (TR 2 Is supplied to the base to turn on the switching transistor TR 2 .

한편, 초기 충격전압이 지난 후 교류 전압입력단(IN1)(IN2)을 통한 입력 교류전압(110/220V)은 배전압 정류회로(1)에서 입력 교류전압의 약 2배가 되는 정류전압으로 변환되어 트랜스포머(4)의 1차측(T1)을 통해서 댐핑 및 스노버회로(5A)에 공급되고, 전원구동회로(2)는 콘덴서(C3)의 직류저지동작으로 인하여 비동작 상태가 된다.On the other hand, after the initial shock voltage, the input AC voltage 110 / 220V through the AC voltage input terminal IN 1 (IN 2 ) is converted into a rectified voltage that is approximately twice the input AC voltage in the double voltage rectifying circuit 1. The damping and snorkel circuits 5A are supplied to the damping and snorkel circuits 5A through the primary side T 1 of the transformer 4, and the power supply driving circuit 2 is in an inoperative state due to the DC blocking operation of the capacitor C 3 .

댐핑 및 스노버회로(5A)는 저항(R7)과 다이오드(D4)가 결합되는 댐핑회로와 저항(R8)과 다이오드(D5) 및 콘덴서(C5)가 결합되는 스노버(SNUBBER)회로로 구성되어 있는데, 배전압 정류회로(1)를 통한 정류 전압은 댐핑회로를 통해서 스위칭용 트랜지스터(TR2)의 콜렉터에 공급되어 스위칭용 트랜지스터(TR2)가 턴온(TURN ON)되므로 트랜스포머(4)의 1차측(T1)에 흐르는 전류에 의해 2, 3차측(T2)(T3)에 전압이 유기된다.The damping and snorkel circuit 5A includes a damping circuit in which the resistor R 7 and the diode D 4 are coupled, and a snubber in which the resistor R 8 , the diode D 5 and the capacitor C 5 are coupled. The rectifier voltage through the double-voltage rectifier circuit 1 is supplied to the collector of the switching transistor TR 2 through a damping circuit, and the switching transistor TR 2 is turned on. The voltage flows to the secondary and tertiary sides T 2 and T 3 by the current flowing in the primary side T 1 of (4).

따라서, 트랜스포머(4)의 2차측(T2)에 유기된 전압은 평활회로(3)의 다이오드(D3)에 공급되고, 저항(R5)(R6)과 콘덴서(C4)를 통해서 평활된 직류전압은 스위치용 레귤레이터 집적회로(TEA1001)의 전원단(Vcc)에 공급되며, 평활회로(3)를 통한 직류전압은 전원단자(Vcc)에서 초기충격전압이 공급된 후에도 스Therefore, the voltage induced on the secondary side T 2 of the transformer 4 is supplied to the diode D 3 of the smoothing circuit 3 , and is supplied via the resistors R 5 (R 6 ) and the capacitor C 4 . The smoothed DC voltage is supplied to the power supply terminal Vcc of the switch regulator integrated circuit TEA1001, and the DC voltage through the smoothing circuit 3 is applied even after the initial shock voltage is supplied from the power supply terminal Vcc.

위칭용 레귤레이터 집적회로(TEA1001)의 전원으로서 계속인가된다. 그리고 트랜스포머(4)의 3차측(T3)에 유기된 전압은 출력회로(7)를 통해 각각 +5V, ±12V의 출력전압으로 개인용 컴퓨터나 터미날에 공급되어진다.It is continuously applied as a power source for the switching regulator integrated circuit TEA1001. The voltage induced on the tertiary side T 3 of the transformer 4 is supplied to the personal computer or terminal through the output circuit 7 at an output voltage of + 5V and ± 12V, respectively.

상기한 바와같이 본 고안은 배전압 정류회로(1)와 스위칭용 레귤레이터 집적회로(TEA1001)사이에 전원 구동회로(2)를 결합하여 전원스위치를 온(ON)시킬때에 발생하는 초기충격전압을 구동전압으로 이용하므로서 회로를 간소화하고 제품을 소형화하여 원가를 절감시킬 수 있는 장점이 있다.As described above, the present invention combines the power supply driving circuit 2 between the double voltage rectifying circuit 1 and the switching regulator integrated circuit TEA1001 to reduce the initial shock voltage generated when the power switch is turned ON. By using it as a driving voltage, it has the advantage of reducing the cost by simplifying the circuit and miniaturizing the product.

Claims (1)

통상적인 배전압 정류회로(1)에 저항(R3)(R4), 콘덴서(C3), 다이오드(D1)(D2) 및 트랜지스터(TR1)로 구성되는 전원구동회로(2)를 연결하고, 전원구동회로(2)의 출력단에는 스위칭용 레귤레이터 집적회로(TEA1001)의 전원단자(Vcc)와 평활회로(3)를 연결하며, 평활회로(3)의 입력단에는 트랜스포머(4)의 2차측(T2)을 연결하고, 트랜스포머(4)의 1, 3차 측(T1)(T3)에는 스위칭회로(5)와 출력회로(6)를 결합시킨 구조로 되어있는 스위칭 모우드 전원공급기의 초기전원 인가회로.A power supply circuit 2 composed of a resistor R 3 , R 4 , a capacitor C 3 , a diode D 1 , D 2 , and a transistor TR 1 in a conventional double voltage rectifier circuit 1. Is connected to the output terminal of the power supply driving circuit (2) and the power supply terminal (Vcc) of the switching regulator integrated circuit (TEA1001) and the smoothing circuit (3), and the input of the smoothing circuit (3) of the transformer (4) A switching mode power supply having a structure in which a secondary side T 2 is connected, and a switching circuit 5 and an output circuit 6 are coupled to the primary and tertiary sides T 1 and T 3 of the transformer 4. Initial power supply circuit of the supply.
KR2019830007147U 1983-08-13 1983-08-13 Power supply circuit KR850000503Y1 (en)

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KR2019830007147U KR850000503Y1 (en) 1983-08-13 1983-08-13 Power supply circuit

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Application Number Priority Date Filing Date Title
KR2019830007147U KR850000503Y1 (en) 1983-08-13 1983-08-13 Power supply circuit

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KR850000503Y1 true KR850000503Y1 (en) 1985-03-23
KR850002220U KR850002220U (en) 1985-04-22

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KR2019830007147U KR850000503Y1 (en) 1983-08-13 1983-08-13 Power supply circuit

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