KR100384054B1 - Automatic power source switching circuit - Google Patents

Automatic power source switching circuit Download PDF

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Publication number
KR100384054B1
KR100384054B1 KR10-2000-0086493A KR20000086493A KR100384054B1 KR 100384054 B1 KR100384054 B1 KR 100384054B1 KR 20000086493 A KR20000086493 A KR 20000086493A KR 100384054 B1 KR100384054 B1 KR 100384054B1
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South Korea
Prior art keywords
power
circuit
switching circuit
automatic
turned
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KR10-2000-0086493A
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Korean (ko)
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KR20010025496A (en
Inventor
서덕만
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서덕만
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

본 발명은 예고없이 정전 되었을시 자동적으로 밧데리의 예비전원으로 전환되고 정전 후 다시 복구 되었을시 AC전원으로 전환되는 자동전원 전환회로에 관한 것이다.The present invention relates to an automatic power supply switching circuit that is automatically switched to the backup power supply of the battery when the power failure without notice, and is converted to AC power when restored again after the power failure.

본 발명에 따르면, 가정이나 소규모 사무실 또는 야외 업무용 소공간에서 사용하고 있는 등화용 형광등이나 백열등 그리고 정전시 긴급전원이 필요한 곳에 내장 또는 별도로, 소형 자동 전원 전환회로의 장치를 설치하여 손쉽게 활용할 수 있는데 이회로는 AC전원이 투입될 때 활성화 되는 회로(B)와 정전시 활성화 되어 전원을 생성하는 회로(A) 그리고 출력 회로(C)로 구성한다.According to the present invention, it is easy to install and use a device of a small automatic power switching circuit built-in or separately where a fluorescent lamp or incandescent lamp for lighting used in a small space for home or small office or outdoor work and emergency power in case of power failure. The furnace consists of a circuit (B) that is activated when AC power is turned on, a circuit (A) that is activated when power failure is generated, and an output circuit (C).

상기한 구성에 의해 예고없이 정전될 때 소형 산업용 재충전 밧데리(a)의 전원을 이용해 정전시 50ms 이내에 예비전원으로 전환되어 2시간 내지 2시간 30분 정도 등화를 유지할 수 있으며 다시 AC전원이 복구 되었을 때 또한 자동으로 전원이 전환되어 긴급상황에 즉시 대처할 수 있는것은 물론 일정시간 동안 대체전원을 사용 가능하게 하는것을 특징으로 하는 자동전원 전환회로가 제공된다.When the power outage without notice by the above configuration, using the power of the small industrial rechargeable battery (a) is switched to the backup power within 50ms during the power outage, it is possible to maintain the equalization of about 2 hours to 2 hours 30 minutes and when the AC power is restored again In addition, the power is automatically switched to provide an automatic power switching circuit that can immediately respond to an emergency situation, as well as enabling the use of alternative power for a certain time.

Description

자동 전원 전환회로{Automatic power source switching circuit}Automatic power source switching circuit

본 발명은 자동전원 전환회로에 관한 것으로, 더욱 상세하게는 정전시 자동으로 산업용 드라이셀(dry cell) 재충전 밧데리의 예비전원으로 전환되고 복구시 자동으로 복구전원(AC)으로 전환되는 자동전원 전환회로로서 종래에는 정전시 수동 또는 반자동으로 발전기나 습식밧데리(acid battery)를 사용하여 예비전원으로 대체 하였으나 이 장치는 넓은 공간과 비용이 많이들어 가정이나 소규모 사업장에서 활용 하기엔 문제가 있었다.The present invention relates to an automatic power supply switching circuit, and more particularly, to an automatic power supply switching circuit which is automatically switched to a backup power supply of an industrial dry cell rechargeable battery upon power failure and automatically converted to a recovery power source (AC) upon recovery. Conventionally, in the case of power failure, a generator or a wet battery (acid battery) was used to replace a spare power source manually or semi-automatically, but this device had a problem of being utilized in a home or a small business because of the large space and cost.

본 발명은 위와 같은 종래의 문제점을 해결하고자 하는 목적으로 연구 제안되었으며, 이러한 목적 달성을 위하여 사용하고자 하는 용도에 적합하게 이회로가 구성된 장치를 소형 경량화 시키고 제품에 종속화 시킬 수 있는 저렴한 비용으로 완전 자동화 하도록 구성한다.The present invention has been researched and proposed for the purpose of solving the above-mentioned conventional problems, and to achieve this purpose, it is possible to fully reduce the weight of the device configured with this circuit suitable for the intended use and to make it dependent on the product at low cost. Configure to

도 1은 본 발명의 회로도(circuit diagram)1 is a circuit diagram of the invention

도 2는 본 발명의 실제 적용예시도2 is a practical application example of the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 위상 변환회로 2 : 브리지 정류회로1: Phase conversion circuit 2: Bridge rectification circuit

3 : 충전 전환회로 4 : 고주파 정류회로3: charge switching circuit 4: high frequency rectification circuit

5 : 트랜스 6 : 전원 안정화회로5: transformer 6: power stabilization circuit

7 : 밧데리 소모 억제회로 8 : 주파수 결정회로7: battery consumption suppression circuit 8: frequency determination circuit

9 : PWM회로 10 : 역변환회로9: PWM circuit 10: reverse conversion circuit

11 : 전원 전환회로 a : 밧데리11: power switching circuit a: battery

b : 전자식 안정기 c : 방열판b: electronic ballast c: heat sink

d : 안정기 e : PCBd: ballast e: PCB

f : 형광등 g : 스타트 램프f: fluorescent lamp g: start lamp

본 발명의 자동전원 전환회로는 AC220V 전원스위치를 ON 하였을 때 릴레이(11)에 의하여 자동으로 소요 전원이 전환회로(11)인 릴레이로 전달되어 출력회로로 전달되는 한편 AC전원이 투입 되었을시 활성화되는 회로(B)에서 자동으로 전원이 브리지 정류회로(2)를 거쳐 충전 전환회로(3)에 의해 충전모드로 들어가게 되어 산업용 드라이셀밧데리(a)가 충전을 동시에 시작하게 된다. 이때 위상 변환회로(1)에 의해 전류가 전압보다 90도 앞서가기 때문에 출력회로의 전력 손실이 전혀 없으며 포토카풀러(photo coupler)인 밧데리 소모 억제회로(7)에서 발전을 정지시켜 밧데리 소모를 억제시키는 역활을 한다. 그리고 정전시 활성화되어 전원을 생성하는 회로(A)에서 정전시 전원 전환회로(11)인 릴레이가 자동으로 감지하여 떨어져밧데리(a)의 전원이 자동으로 전원 안정화회로(6)를 거쳐 발진주파수 결정회로(8)와 펄스폭을 변환하여 밝기를 조절하는 PWM(9) 회로, U2 I.C소자를 가지고 F.E.Transistor인 하프브리지 방식의 역변환회로(10)를 지나면서 교류로 변환된 후 전압변환 트랜스(5)에서 승압되어 고주파 정류회로(4)를 거쳐 릴레이인 전원 전환회로(11)를 통하여 출력회로로 전달된다.When the AC220V power switch is turned on, the automatic power switching circuit of the present invention is automatically transferred to the relay which is a switching circuit 11 by the relay 11 when the required power is transferred to the output circuit and is activated when AC power is turned on. In the circuit B, the power is automatically entered into the charging mode by the charging switching circuit 3 via the bridge rectifying circuit 2, so that the industrial dry cell battery a starts charging at the same time. At this time, since the current is 90 degrees ahead of the voltage by the phase conversion circuit 1, there is no power loss of the output circuit, and the battery consumption is suppressed by stopping the power generation in the battery consumption suppression circuit 7, which is a photo coupler. Play a role. In the circuit (A) that is activated at the time of power failure and generates power, a relay, which is the power switching circuit 11, is automatically sensed when the power failure occurs, and the power of the battery (a) is automatically determined via the power stabilization circuit (6) to determine the oscillation frequency. PWM (9) circuit for controlling brightness by converting circuit (8) and pulse width, and converting into alternating current after passing through half-bridge inverting circuit (10) of FETransistor with U2 IC element (5) It is stepped up by) and is transmitted to the output circuit through the power switching circuit 11 which is a relay via the high frequency rectification circuit (4).

상기한 모든과정은 회로에서 자동으로 감지하여 이루어 지며 등화용으로나 소규모 산업용으로 장치를 구성하여 사용할 수 있는 것이다.All of the above processes are automatically detected in the circuit, and the device can be used for equalization or small scale industrial use.

이상에서 상술한 바와같이 본 발명은 전원이 전환되는 소요시간이 50ms로서 정전이 되었다는 사실을 거의 인지하기 어렵고 밧데리의 계속 사용시간은 2시간 내지 2시간30분정도 가능하여 전력사정이 그리 좋지 않은 장소에서도 사용가능하다. 그러나 산업용으로 용량에 따라 합리적으로 활용할 수는 있지만 현실적으로 단일 전원이 20W 정도의 전원을 사용하는 가정이나 소규모 사무실, 야외 업무용 소공간, 소규모 사업장등에서 사용하고 있는 등화용 형광등이나 백열등 그리고 소량의 전원이 소요되는 장소 및 장치에 내장 또는 별도로 소형 자동전원 전환회로의 장치를 설치하여 손쉽게 활용할 수 있는 것이다.As described above, the present invention hardly recognizes the fact that the time required for switching the power is 50ms and the power outage is difficult, and the use time of the battery can be about 2 hours to 2 hours 30 minutes, and the power is not so good. Also available at. However, although it can be used reasonably according to the capacity for industrial use, it requires a small amount of power for fluorescent lamps, incandescent lamps, etc. used in homes, small offices, outdoor work spaces, and small businesses that use a single power supply of about 20W. It can be easily utilized by installing a device of a small automatic power switching circuit built in or separately in a place and a device.

Claims (1)

자동 전원 전환회로에 있어서 AC전원 투입시 활성화되는 회로(B)에서 전원투입시 충전모드로 전환되는 충전 전환회로(3)와 전류를 전압보다 90도 앞서가게 하여 전력손실과 열을 방지하는 위상변환회로(1), 전원투입시 포토카풀러(photo coupler)에서 발전을 정지시켜 밧데리 소모를 억제하는 밧데리 소모 억제회로(7), 그리고, 정전시 활성화되어 전원을 생성하는 회로(A)에서 정전시 자동으로 전원을 안정시키는 전원 안정화회로(6)를 거쳐 발전주파수 결정회로(8)와 펄스폭을 변환하여 밝기를 조절하는 U2 I.C 소자를 포함한 PWM(9) 회로를 거치고 F.E.Transistor인 하프브리지 방식의 역변환회로(10)를 지나면서 교류로 변환된 후 전압변환 트랜스(5)에서 승압되어 고주파 정류회로(4)를 거쳐 릴레이인 전원 전환회로(11)에서 출력회로로 전달되는 자동 전원 전환회로.In the automatic power switching circuit, a circuit (B) activated when the AC power is turned on, and a charge switching circuit (3) that switches to the charging mode when the power is turned on, and a phase shifting circuit that prevents power loss and heat by moving the current 90 degrees ahead of the voltage. (1) The battery consumption suppression circuit 7 which suppresses battery consumption by stopping the power generation in the photo coupler when the power is turned on, and the circuit A which is activated during power failure and generates power, Through the power stabilization circuit (6) to stabilize the power supply, and through the power generation frequency determination circuit (8) and the PWM (9) circuit including the U2 IC element to control the brightness by converting the pulse width, and inverting the half-bridge type of FETransistor. Automatic power switching circuit which is converted to alternating current through the circuit (10), and then stepped up in the voltage conversion transformer (5) and passed to the output circuit from the power switching circuit (11), which is a relay, via the high frequency rectifying circuit (4).
KR10-2000-0086493A 2000-12-23 2000-12-23 Automatic power source switching circuit KR100384054B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR10-2000-0086493A KR100384054B1 (en) 2000-12-23 2000-12-23 Automatic power source switching circuit

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KR100384054B1 true KR100384054B1 (en) 2003-05-14

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR860006783U (en) * 1984-11-08 1986-06-25 이래헌 Power supply device for induction light
KR920010577U (en) * 1990-11-30 1992-06-17 삼성전기 주식회사 Off-line uninterruptible power supply to prevent initial transients
JPH06189476A (en) * 1992-12-18 1994-07-08 Yuasa Corp Controller of uninterruptible power supply apparatus
KR19990000604A (en) * 1997-06-04 1999-01-15 윤문수 Single-phase small uninterruptible power supply

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR860006783U (en) * 1984-11-08 1986-06-25 이래헌 Power supply device for induction light
KR920010577U (en) * 1990-11-30 1992-06-17 삼성전기 주식회사 Off-line uninterruptible power supply to prevent initial transients
JPH06189476A (en) * 1992-12-18 1994-07-08 Yuasa Corp Controller of uninterruptible power supply apparatus
KR19990000604A (en) * 1997-06-04 1999-01-15 윤문수 Single-phase small uninterruptible power supply

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