KR890000903Y1 - Circuit arrangement for preventing overcharge - Google Patents

Circuit arrangement for preventing overcharge Download PDF

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Publication number
KR890000903Y1
KR890000903Y1 KR2019860003596U KR860003596U KR890000903Y1 KR 890000903 Y1 KR890000903 Y1 KR 890000903Y1 KR 2019860003596 U KR2019860003596 U KR 2019860003596U KR 860003596 U KR860003596 U KR 860003596U KR 890000903 Y1 KR890000903 Y1 KR 890000903Y1
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KR
South Korea
Prior art keywords
transistor
led
circuit
light emitting
preventing overcharge
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KR2019860003596U
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Korean (ko)
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KR870015502U (en
Inventor
한동희
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주식회사 서통
김순강
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Priority to KR2019860003596U priority Critical patent/KR890000903Y1/en
Publication of KR870015502U publication Critical patent/KR870015502U/en
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Publication of KR890000903Y1 publication Critical patent/KR890000903Y1/en

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    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S320/00—Electricity: battery or capacitor charging or discharging
    • Y10S320/18—Indicator or display
    • Y10S320/21—State of charge of battery

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

내용 없음.No content.

Description

과충전 방지를 위한 점멸 표시회로Flashing display circuit to prevent overcharge

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

10 : 멀티 발진회로 FF : 디-플립플롭(D-Flip Flop)10: Multi oscillation circuit FF: D-Flip Flop

S2: 선택스위치 TR2: 트랜지스터S 2 : selection switch TR 2 : transistor

LED1, LED2: 발광표시소자 BT1-BT4: 축전지LED 1 , LED 2 : light emitting display device BT 1- BT 4 : battery

본 고안은 니켈 카드뮴(Ni-Cd)전지등과 같은 2차 전지를 제충전하여 사용하는 충전 어댑터에 있어, 과충전에 의한 전지의 파괴 현상을 미연에 방지 하고자 하여 과충전 상태가 되면 즉시 발광표시 소자가 점멸동작하여 과충전 상태임을 표시 하도록 한 회로에 관한 것이다.The present invention is a charging adapter for charging and using a secondary battery such as a nickel-cadmium (Ni-Cd) battery, in order to prevent the destruction of the battery due to overcharging in advance, the light-emitting display device is immediately Flashing operation relates to a circuit to indicate that the state is overcharged.

종래의 충전 어댑터로서는 과충전 상태임을 사용자에게 즉시 표시하여 주는 기능을 구비하고 있지 못한 것이어서, 이는 충전 완료후에도 계속해서 충전 전류를 흘려주게 되므로, 이로 인한 2차 전지의 수명 단축 및 파괴 현상을 가져오게 되는 문제점이 야기 되었다.Conventional charging adapters do not have a function to immediately display to the user that the state of overcharging, which will continue to flow the charging current even after the charge is completed, resulting in shortening the life of the secondary battery and destruction phenomenon Problems have arisen.

본 고안은 이러한 점을 감안하여 간단한 점멸 표시회로의 구성으로서, 과충전 상태임을 사용자가 용이하게 식별할 수 있도록 하여 과충전으로 인한 전지의 수명단축 및 파괴 현상을 미연에 방지 하고자 안출한 것으로서, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.The present invention is a simple flashing display circuit in view of the above points, to facilitate the user to easily identify that the state of overcharge, and to prevent the shortening and destruction of the battery life due to overcharging in advance, Referring to the drawings in detail as follows.

제1도에서와 같이 전원트랜스(T)의 2차측 코일(L2)의 양단에 브릿지 다이오드(BD), 및 콘덴서(C1)를 통하여 트랜지스터(TR1), 가변저항(VR1) 및 제너 다이오드(ZD)로된 정전압 회로를 연결 구성한 것에 있어서, 상기 트랜지스터(TR1)의 에미터측에 저항(R1), (R2)을 통하여 트랜지스터(TR2)의 베이스측을 접속하고, 그의 콜렉터측에는 멀티 발진회로(10)를 통하여 디-플림플롭(FF)의 클럭입력단자(CK)를 연결하고, 그의 출력단자(Q),에는 각각 발광표시 소자(LED1), (LED2)를 연결한다.As shown in FIG. 1 , the transistor TR 1 , the variable resistor VR 1 , and the zener through the bridge diode BD and the capacitor C 1 at both ends of the secondary coil L 2 of the power supply T. In the structure in which the constant voltage circuit composed of the diode ZD is connected, the base side of the transistor TR 2 is connected to the emitter side of the transistor TR 1 via resistors R 1 and R 2 , and the collector thereof. The clock input terminal CK of the de-flimp flop FF is connected to the side via the multi oscillation circuit 10, and the output terminal Q thereof, The light emitting display elements LED 1 and LED 2 are connected to each other.

또한 접속점(B)에 선택스위치(S2)를 연결하되, 각 접점단자()에는 저항 (R3-R6) 및 축전지(BT1-BT4)를 연결하여 구성시킨다.In addition, the selector switch (S 2 ) is connected to the connection point (B), each contact terminal ( ) Is configured by connecting resistors (R 3 -R 6 ) and storage batteries (BT 1 -BT 4 ).

미설명 부호 S1은 AC 110V/220V 입력전원전환스위치, R7, R8은 저항, A는 전원 어댑터 플러그이다.Unmarked symbol S 1 is AC 110V / 220V input power switch, R 7 and R 8 are resistors, and A is a power adapter plug.

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

우선 평상시에 교류전원(AC)이 인가되면 입력전원전환 스위치(S1)에 의하여 선택된 110V/220V 교류전원에 따라 전원트랜스(T)의 2차측 코일(L2)에 전압이 유기되고, 이어서 브릿지 다이오드(BD)를 통하여 정류된 직류 전원이 트랜지스터 (TR1)의 콜렉터 측에 가해지는데, 이때 제너다이오드(ZD)에 의하여 설정된 제너전압치 이상이 되면 안정된 제너 전압이 트랜지스터(TR1)의 베이스측에 가해져 도통 하므로, 그의 에미터측에는 ''하이''신호가 나타나게 된다.First, when AC power is normally applied, voltage is induced in the secondary coil L 2 of the power transformer T according to the 110V / 220V AC power selected by the input power switch S 1 . DC power rectified through the diode BD is applied to the collector side of the transistor TR 1 , and when the zener voltage value set by the zener diode ZD is equal to or greater than the zener voltage value, the stable zener voltage is the base side of the transistor TR 1 . As it is applied to, the signal 'high' appears on its emitter side.

이와같은 ''하이''신호는 저항(R1), (R2)을 통하여 트래니지스터(TR2)의 베이스측에 가해지게 되나, 트랜지스터(TR2)는 부도통 되어 후단에 연결된 멀티 발진회로(10) 및 디 플립플롭(FF)이 동작되지 못하므로 발광표시소자(LED1), (LED2)도 소등 상태로 있게 된다.This `` high '' signal is applied to the base side of the transistor (TR 2 ) through the resistors (R 1 ) and (R 2 ), but the transistor (TR 2 ) is non-conducting and is connected to the rear end of the multi oscillation. Since the circuit 10 and the de-flip-flop FF are not operated, the light emitting display devices LED 1 and LED 2 are also turned off.

이와같은 초기 상태에서, 선택스위치(S2)의 접점(1), (2), (3), (4)중 선택스위치(S2)가 접점(1)에 접속되면, 축전지(BT1)는 충전 되기 시작하여 만충전 상태가 되면, 접속점(B)에 전위는 ''로우''신호가 나타나게 되므로 이 ''로우''신호는 트랜지스터(TR)의 베이스측에 가해져 상기 트랜지스터(TR2)가 도통하게 되어 콜렉터측에 접속된 멀티발진회로(10)에 전원이 가해져 발진동작을 하게되어 하이 펄스 신호가 디-플립플롭(FF)의 클럭 입력단자(CK)에 가해져 그의 출력단(Q)에는 ''하이''신호가, 출력단에는 ''로우''신호가 각각 나타나게 되므로, 발광소자 (LED1)가 소동하게 되고, 발광소자 (LED2)는 점등하게 된다.In such an initial state, when the selection switch S 2 of the contacts 1, 2, 3, and 4 of the selection switch S 2 is connected to the contact 1, the storage battery BT 1 . When the charge begins to be charged and becomes a fully charged state, the potential of the signal `` low '' appears at the connection point B, and thus the signal `` low '' is applied to the base side of the transistor TR so that the transistor TR 2 Is turned on, power is supplied to the multi-oscillation circuit 10 connected to the collector side, and oscillation operation is performed, and a high pulse signal is applied to the clock input terminal CK of the de-flip flop FF, and to the output terminal Q thereof. `` High '' signal is output Since the `` low '' signal is displayed respectively, the light emitting device LED 1 is disturbed, and the light emitting device LED 2 is turned on.

그러다가 디-플립플롭(FF)의 클럭 입력단자(CK)에 로우 펄스가 가해지면, 디-플립플롭(FF)의 출력단(Q)에는 하이 신호가 출력되므로, 이때에는 발광소자 (LED1)가 점등 하게 되고, 발광소자(LED2)는 소등하게 된다.Then, when a low pulse is applied to the clock input terminal CK of the de-flip flop FF, the output terminal Q of the de-flip flop FF. Since a high signal is output to the light emitting device LED 1 at this time, the light emitting device LED 2 is turned off.

즉, 발광소자(LED1), (LED2)가 교대로 깜박거리게 되어 만충전 상태임을 표시하게 된다.That is, the light emitting elements LED 1 and LED 2 alternately blink to indicate that the battery is in a fully charged state.

여기서, 선택스위치(S2)의 선택에 따라 축전지(BT1-BT4)를 동시에 충전 시킬수가 있으며, 이때의 전압량은 가변저항(VR1)의 가변 조정에 의하여 조절할수가 있는 것이다.Here, the storage battery (BT 1- BT 4 ) can be charged at the same time according to the selection of the selection switch (S 2 ), the voltage amount can be adjusted by the variable adjustment of the variable resistor (VR 1 ).

이상에서와 같이 동작하는 본 고안은, 간단한 점멸표시 회로 구성으로서 과충전 상태가 되면 발광표시 소자가 점멸 동작하여 사용자에게 과충전 상태임을 즉시 알려 줄수 있는 것이어서, 종래의 과충전에 의한 축전지의 수명 단축 및 파괴 현상을 미연에 방지 할수 있는 효과가 있는 것이다.The present invention, which operates as described above, is a simple flashing display circuit configuration, and when the LED is overcharged, the light emitting display element blinks to immediately notify the user of an overcharged state, thereby reducing the lifespan and destruction of the battery due to the conventional overcharge. The effect is to prevent in advance.

Claims (1)

전원 트랜스(T)의 2차측 코일(L2)양단에 브릿지 다이오드(BD) 및 콘덴서 (C2)를 통하여 트랜지스터(TR1), 가변저항(VR1) 및 제너 다이오드(ZD)로된 정전압회로를 연결 구성한 것에 있어서, 상기 트랜지스터(TR1)의 에미터측에 저항 (R1), (R2)을 통하여 다단 축전지(BT1-BT4)를 선택하여 충전 시킬수 있도록 한 선택스위치(S2)와 트랜지스터(TR2)의 베이스측을 연결하고, 상기 트랜지스터(TR2)의 콜렉터 측에는 멀티 발진 회로(10)및 디 플립플롭(FF)을 연결하여 그의 출력단자 (Q),에 접속된 발광표시소자(LED1), (LED2)가 과충전시 점멸 동작되도록 연결 하여서 구성된 과충전 방지를 위한 점멸 표시 회로.With a power transformer (T) 2 primary coil (L 2) transistor via a bridge diode (BD) and a capacitor (C 2) to both ends (TR 1), a variable resistor (VR 1) and a Zener diode (ZD) of the constant-voltage circuit In this configuration, the selector switch S 2 is configured to charge and select the multistage storage battery BT 1- BT 4 through the resistors R 1 and R 2 on the emitter side of the transistor TR 1 . and a transistor connected to the base side of the (TR 2), and multi-oscillator circuit 10 and the D flip-flop (FF) connected to its output terminal (Q) the collector side of the transistor (TR 2), A flashing display circuit for preventing overcharge, wherein the light emitting display elements (LED 1 ) and (LED 2 ) connected to the LEDs are connected to operate in a blinking state when overcharging.
KR2019860003596U 1986-03-25 1986-03-25 Circuit arrangement for preventing overcharge KR890000903Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860003596U KR890000903Y1 (en) 1986-03-25 1986-03-25 Circuit arrangement for preventing overcharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860003596U KR890000903Y1 (en) 1986-03-25 1986-03-25 Circuit arrangement for preventing overcharge

Publications (2)

Publication Number Publication Date
KR870015502U KR870015502U (en) 1987-10-26
KR890000903Y1 true KR890000903Y1 (en) 1989-03-27

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Application Number Title Priority Date Filing Date
KR2019860003596U KR890000903Y1 (en) 1986-03-25 1986-03-25 Circuit arrangement for preventing overcharge

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KR870015502U (en) 1987-10-26

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