KR880003313Y1 - Automatic voltage circuit - Google Patents

Automatic voltage circuit Download PDF

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Publication number
KR880003313Y1
KR880003313Y1 KR2019850008949U KR850008949U KR880003313Y1 KR 880003313 Y1 KR880003313 Y1 KR 880003313Y1 KR 2019850008949 U KR2019850008949 U KR 2019850008949U KR 850008949 U KR850008949 U KR 850008949U KR 880003313 Y1 KR880003313 Y1 KR 880003313Y1
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KR
South Korea
Prior art keywords
voltage
relay
scr
terminal
circuit
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KR2019850008949U
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Korean (ko)
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KR870003027U (en
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이윤기
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주식회사 금성사
허신구
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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
    • 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
    • H02M7/21—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 using devices of a triode or transistor type requiring continuous application of a control signal
    • 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
    • H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc

Abstract

내용 없음.No content.

Description

100V/220V 자동 절환회로100V / 220V automatic switching circuit

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

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

Ry : 릴레이 T : 전원트랜스Ry: Relay T: Power Trans

a, b : 릴레이(Ry)의 접검 SCR : 다이리스터a, b: Relay check Ry SCR: Thyristor

Q1: 트랜지스터 ZD : 제너다이오드Q 1 : Transistor ZD: Zener Diode

R1-R4: 저항R 1 -R 4 : Resistance

본 고안은 일반 전기전가 기기에 공급되는 100V/220V 입력 전원전압을 자동 절환할수 있는 회로에 관한 것이다.The present invention relates to a circuit that can automatically switch the 100V / 220V input power supply voltage supplied to a general electric transfer device.

종래의 100V/220V 겸용 전기 전자 기기에 있어서 100V/220V의 절환은 각각 스위치를 사용하거나 혹은 스위칭 모드전원(SMPS)회로를 사용하여 전원을 안정하게 동작하도록 하였으나, 전자는 절환사용이 불편할 뿐 아니라 사용 부주위로 인하여 기기를 손상시키는 문제점이 있었으며, 후자의 경우에는 스위칭 모드 전원 필스트랜스 및 반도체를 도입해야만 하므로서, 원가 상승의 요인이 있었다.In the conventional 100V / 220V combined electric and electronic devices, the switching of 100V / 220V is to operate the power stably by using a switch or a switching mode power supply (SMPS) circuit, but the former is not only inconvenient to use the switching In the latter case, there was a problem of damaging the device. In the latter case, a switching mode power supply transformer and a semiconductor had to be introduced, causing a cost increase.

본 고안은 이러한 점을 감안하여, 다이리스터 트랜지스터 및 릴레이를 이용한 간단하면서도 저렴한 회로 구성에 의하여 100V/220V 입력 전원 전압을 자동으로 절환 할수 있도록 안출한 것으로, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.The present invention has been conceived to automatically switch the 100V / 220V input power supply voltage by a simple and inexpensive circuit configuration using a thyristor transistor and a relay, which will be described in detail with reference to the accompanying drawings. same.

전원트랜스(T)의 1차측 코일(L1)의 단자(①②)에는 릴레이(Ry)의 접점(a), (b)을 접속하고, 그의 2차측 코일(L2)의 단자(3)에는 정류회로(20)를 통하여 정류시킨후 콘덴서(C1)제너다이로드(ZD1)및 다이리스터(SCR)를 부하측(30)에 연결 구성하고, 릴레이(Ry)의 코일(L)의 일단(⑤)에 다이오드(D2)의 애노드측이 접속된 저항(R4)을 통하여 접속점(c)에 연결하고, 상기한 코일(L)의 타단(④)콜렉터측이 접속된 트랜지스터(Q1)의 베이스에 저항(R2), (R3)을 통하여 상기한 다이리스터(SCR)의 캐소우드측을 접속하고, 그의 게이트측은 제너다이오드(ZD1)의 애노우드측에 접속하여 구성시킨다. 미설명부호 10은 100V/220V 입력 전원이고, R1은 저항이다.The contacts (a) and (b) of the relay Ry are connected to the terminal (①②) of the primary coil L 1 of the power supply transformer T, and to the terminal 3 of the secondary coil L 2 thereof . After rectifying through the rectifier circuit 20, the condenser C 1 Zener die rod ZD 1 and the die Lister SCR are connected to the load side 30, and one end of the coil L of the relay Ry ( ⑤) transistor Q 1 connected to the connection point c via a resistor R 4 connected to the anode side of the diode D 2 and connected to the collector side of the other end ④ of the coil L. connected to the base resistor (R 2), (R 3 ) a cathode side of the thyristor (SCR) through, and its gate side thereby configured to connect to the anode side of the Zener diode (ZD 1). Reference numeral 10 is a 100V / 220V input power supply, and R 1 is a resistor.

이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.

우선 AC전압이 100V로 인가될 경우에는 전원이 부도통 상태에서의 릴레이(Ry)의 접점(a)에 접속된 상태이므로, AC 100V 전압은 릴레이(Ry)의 접점(a)을 통하여 트랜스(T)의 1차 코일(L1)의 단자(②)에 인가되어, 트랜스(T)의 2차 코일(L2)의 단자(③)에는 9 높은 출력전압이 나타나게 되고, 이 전압은 정류회로(20)를 통하여 정류시킨후 부하(30)에 가해지게 된다. 따라서 부하(30)는 정상적으로 동작하게 되고, 이때 제너다이오드(ZD1)는 부도통 상태가 되어서 다이리스터(SCR)의 게이트에도 전압이 인가되지 않아 부도통 상태가 되어, 트랜지스터(Q1)도 부도통상태가 되므로, 릴레이(Ry)의 코일 양단(④, ⑤)에는 전류가 흐르지 않아 릴레이(Ry)의 접점은 계속 접점(a)에 접속된 상태를 유지하게 되어 기기는 정상적으로 동작을 하게 되는 것이다.First, when the AC voltage is applied at 100 V, the power is connected to the contact a of the relay Ry in a non-conducting state. Therefore, the AC 100 V voltage is transmitted to the transformer T through the contact a of the relay Ry. ) terminal (③) of the is applied to the terminal (②) of the primary coil (L 1), trans (T) 2 secondary coil (L 2 a), the nine high output voltage is to appear, a voltage rectifier circuit ( After rectifying through 20) is applied to the load (30). Therefore, the load 30 is to operate normally, wherein the zener diode (ZD 1) is bounced be a whole state does not voltage is applied to the gate of the thyristor (SCR) is the default barrel condition, the transistor (Q 1) also bounced In this state, no current flows through the coils ④ and ⑤ of the relay Ry, and the contact of the relay Ry remains connected to the contact a so that the device operates normally. .

한편, AC전압이 220V로 인가될 경우에는, 릴레이(Ry)의 접점(a)을 통하여 트랜스(T)의 1차코일(L1)의 단자(②)에 AC전압이 100V 일때보다 2. 2배의 전압이 가해지게 되어 정류회로(20)의 출력단에 나타나는 전압도 2. 2배가 된다.On the other hand, when the AC voltage is applied at 220V, the terminal (②) of the primary coil (L 1 ) of the transformer (T) through the contact (a) of the relay (R) is 2. 2 than when the AC voltage is 100V. The voltage doubled is applied so that the voltage appearing at the output of the rectifier circuit 20 is also doubled.

이 경우에는 제너설정 전압보다 높은 전압이 가해지므로, 제너 다이오드(ZD1)가 도통 되어서 다이리스터(SCR)의 게이트에 전압이 인가되어 다이리스터(SCR)가 도통되므로, 정류회로 (20)의 출력전압이 다이리스터(SCR)및 저항(R4)을 통하여 트랜지스터(Q1)의 베이스에 가해지게 되어 트랜지스터(Q1)가 도통 상태가 된다.In this case, since a voltage higher than the Zener set voltage is applied, the Zener diode ZD 1 is turned on, and a voltage is applied to the gate of the die thyristor SCR, so that the thyristor SCR is conducted, so that the output of the rectifier circuit 20 is output. The voltage is applied to the base of the transistor Q 1 through the thyristor SCR and the resistor R 4 so that the transistor Q 1 is in a conductive state.

이때 저항 (R4)과 릴레이 (Ry)의 코일(L)의 양단(④, ⑤)에 전류가 흐르게 되어 릴레이 (Ry)의 접점은(a)에서 (b)로 절환 접속된다. 따라서 AC입력전압 220v는 릴레이(Ry)의 접점(b)을 통하여 트랜스(T)의 1차코일(L1)의 단자①)에 전압이 인가된다.At this time, a current flows between the resistors R 4 and the both ends ④ and ⑤ of the coil L of the relay Ry, so that the contact of the relay Ry is connected from (a) to (b). Therefore, the AC input voltage 220v is applied to the terminal ① of the primary coil L 1 of the transformer T through the contact b of the relay Ry.

이때 AC전압 100V가 트랜스의 단자(②)에 인가될때 권선수를 감안하여 정류회로(20)의 출력단에 나타나는 전압이 AC전압 100V가 트랜스(T)의 단자(②)에 입력전압이 인가될때와 동일한 전압이 인가되도록 하여 부하(30)는 정상적으로 동작하게 되고, 이때 제너다이오드(ZD2)는 부도통 상태가 된다. 그러나 이 경우에는 제너다이오드(ZD1)가 부도통 상태가 되어도 다이리스터(SCR)및 트랜지스터(Q1)는 계속 도통되어, 릴레이(Ry)의 코일양단(④, ⑤)에는 전류가 흐르게 되므로, 릴레이(Ry)의 접점(b)에 접속상태를 유지하게 되어 220v전압에 의하여 정상동작을 행하게 된다. 이와같이 동작하는 본 고안은 간단한 회로 구성으로서 AC전압 100V/220V의 어느 전원이 가해지더라도 부하는 정상적으로 동작하여 사용 부주위로 인한 기기 손상의 우려를 미연에 방지할수 있을뿐 아니라 원가 절감의 효과도 제공할수가 있는 것 이다.At this time, when the AC voltage 100V is applied to the terminal (②) of the transformer, the voltage appearing at the output terminal of the rectifier circuit 20 in consideration of the number of windings, and when the AC voltage 100V is applied to the terminal (②) of the transformer (T) The load 30 operates normally by applying the same voltage, and the zener diode ZD 2 is in a non-conducting state. In this case, however, even when the zener diode ZD 1 is in a non-conductive state, the thyristors SCR and the transistors Q 1 continue to conduct, so that current flows through the coils ④ and ⑤ of the relay Ry. The connection state is maintained at the contact point b of the relay Ry, and normal operation is performed by the 220v voltage. In this way, the present invention is a simple circuit configuration, and any load of AC voltage of 100V / 220V is applied, so that the load operates normally to prevent the risk of damage to the device due to unused use, and can also provide cost reduction effects. It is.

Claims (1)

(정정) 전원 트랜스(T)의 1차코일(L1)의 단자(①, ②)에는 리레이(Ry)의 접점(b), (a)을 접속하고, 그의 2차측 코일(L2)의 단자(③)에 정류회로(20)를 연결 구성한 것에 있어서,상기 정류회로(20)의 출력단과 부하(30)사이에 제너 다이오드(ZD1)및 다이리스터(SCR)를 접속하고, 상기 다이리스터(SCR)의 캐소우드측은 저항(R2), (R3)을 통하여 통상의 릴레이(Ry)를 구동하는 트랜지스터(Q1)의 베이스에 접속하여서된 100V/220V 자동 절환 회로.(Correct) The contacts (b) and (a) of the relay Ry are connected to the terminals ① and ② of the primary coil L 1 of the power transformer T, and the secondary coil L 2 thereof . In the configuration in which the rectifier circuit 20 is connected to the terminal (3) of the circuit, a Zener diode (ZD 1 ) and a die Lister (SCR) are connected between the output terminal of the rectifier circuit (20) and the load (30), and the die A cathode side of the Lister (SCR) is a 100V / 220V automatic switching circuit connected to the base of a transistor (Q 1 ) for driving a normal relay (Ry) through resistors (R 2 ), (R 3 ).
KR2019850008949U 1985-07-16 1985-07-16 Automatic voltage circuit KR880003313Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850008949U KR880003313Y1 (en) 1985-07-16 1985-07-16 Automatic voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850008949U KR880003313Y1 (en) 1985-07-16 1985-07-16 Automatic voltage circuit

Publications (2)

Publication Number Publication Date
KR870003027U KR870003027U (en) 1987-03-19
KR880003313Y1 true KR880003313Y1 (en) 1988-09-24

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KR2019850008949U KR880003313Y1 (en) 1985-07-16 1985-07-16 Automatic voltage circuit

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KR870003027U (en) 1987-03-19

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