KR960039527A - Fast charging circuit - Google Patents

Fast charging circuit Download PDF

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Publication number
KR960039527A
KR960039527A KR1019950009775A KR19950009775A KR960039527A KR 960039527 A KR960039527 A KR 960039527A KR 1019950009775 A KR1019950009775 A KR 1019950009775A KR 19950009775 A KR19950009775 A KR 19950009775A KR 960039527 A KR960039527 A KR 960039527A
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South Korea
Prior art keywords
voltage
charging
resistor
power supply
capacitor
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KR1019950009775A
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Korean (ko)
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KR0169391B1 (en
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민병운
한진섭
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김광호
삼성전자 주식회사
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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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0233—Bistable circuits
    • H03K3/02337—Bistables with hysteresis, e.g. Schmitt trigger

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

이 발명은 오실레이터(Oscillator) 회로 등의 충전 및 방전동작이 요구되는 회로에 부가되어 초기 충전시간을 단축시키는 급속 충전회로(Quick Charging Circuit)에 관한 것으로서, 전원(VCC)의 전압을 분배하여 제공하는 기준전압 발생부(1)와; 전원(VCC)의 전압에 의해 충전동작을 수행하며, 외부에 충전전압을 제공하는 충전부(2)와; 상기 기준전압 발생부(1)의 출력전압이 상기 충전부(2)의 충전전압과 자체문턱전압의 합보다 클경우 턴온되어 상기 충전부(2)에 전원(VCC)의 전압을 직접 공급하는 충전전압 공급부(3)로 구성되어, 초기 충전동작시의 충전력을 강화시켜 초기 충전시간을 단축시킬 수 있는 급속 충전회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quick charging circuit that is added to a circuit requiring charging and discharging operations such as an oscillator circuit to shorten an initial charging time. A reference voltage generator 1; A charging unit 2 performing a charging operation by a voltage of the power supply VCC and providing a charging voltage to the outside; The charging voltage supply unit turns on when the output voltage of the reference voltage generator 1 is greater than the sum of the charging voltage and the self threshold voltage of the charging unit 2 to directly supply the voltage of the power supply VCC to the charging unit 2. It consists of (3) and relates to the quick charging circuit which can shorten initial charging time by strengthening the charging power at the time of initial charging operation.

Description

급속 충전회로Fast charging circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 이 발명의 실시예에 따른 급속 충전회로의 상세 회로도이고, 제2도는 이 발명에 따른 급속 충전회로가 적용된 오실레이터 회로의 상세 회로도이고, 제3도는 상기 제2도에 도시된 회로의 동작 파형도이다.FIG. 1 is a detailed circuit diagram of a quick charging circuit according to an embodiment of the present invention, FIG. 2 is a detailed circuit diagram of an oscillator circuit to which a fast charging circuit according to the present invention is applied, and FIG. 3 is an operation of the circuit shown in FIG. It is a waveform diagram.

Claims (6)

전원의 전압을 분배하여 제공하는 기준전압 발생부와; 전원의 전압에 의해 충전동작을 수행하며, 외부에 충전전압을 제공하는 충전부와; 상기 기준전압 발생부의 출력전압이 상기 충전부의 충전전압과 자체문턱전압의 합보다 클경우 턴온되어 상기 충전부에 전원의 전압을 직접 공급하는 충전전압 공급부로 이루어지는 것을 특징으로 하는 급속 충전회로.A reference voltage generator for distributing and providing a voltage of a power supply; A charging unit which performs a charging operation by a voltage of a power supply and provides a charging voltage to the outside; And a charging voltage supply unit which is turned on when the output voltage of the reference voltage generator is greater than the sum of the charging voltage and the self-threshold voltage of the charging unit to directly supply the voltage of the power supply to the charging unit. 제1항에 있어서, 상기 기준전압 발생부는 전원(VCC)에 대해 직렬로 연결된 두 저항(R3,R4)으로 구성되며, 상기 두 저항(R3,R4)의 저항값의 비는 저항(R4)에 인가되는 전압이 최저 동작전압레벨(VA)이 되도록 세팅됨을 특징으로 하는 급속 충전회로.2. The reference voltage generator of claim 1, wherein the reference voltage generator comprises two resistors R3 and R4 connected in series with the power supply VCC, and a ratio of the resistance values of the two resistors R3 and R4 is equal to the resistor R4. A fast charging circuit, characterized in that the applied voltage is set to be the minimum operating voltage level (VA). 제2항에 있어서, 상기한 충전부는 전원(VCC)에 대해 직렬로 연결된 저항(R1) 및 커패시터(C1)로 구성됨을 특징으로 하는 급속 충전회로.The rapid charging circuit according to claim 2, wherein the charging unit comprises a resistor (R1) and a capacitor (C1) connected in series with the power supply VCC. 제3항에 있어서, 상기한 충전전압 공급부는 컬렉터단은 전원(VCC)에 연결되고, 베이스단은 두 저항(R3,R4)의 중간접점에 연결되고, 에미터단은 저항(R1)과 커패시터(C1)의 중간접점에 연결되는 트랜지스터(Q)로구성됨을 특징으로 하는 급속 충전회로.The method of claim 3, wherein the charging voltage supply unit, the collector terminal is connected to the power supply (VCC), the base terminal is connected to the intermediate contact of the two resistors (R3, R4), the emitter terminal is connected to the resistor (R1) and the capacitor ( A fast charging circuit comprising a transistor (Q) connected to the intermediate contact of C1). 직렬 연결된 두 저항(R3,R4)으로 구성되어, 전원(VCC)의 전압을 분배하는 기준전압 발생부(1)와; 직렬 연결된 저항(R1) 및 커패시터(C1)로 구성되어, 충전동작 및 방전동작을 수행하는 충전부(2)와; 상기 기준전압 발생부(1)의 두 저항(R3,R4) 사이의 접점에 베이스단이 연결되고, 상기 충전부(2)의 저항(R1)과 커패시터(C1) 사이의 접점에 에미터단이 연결되고, 전원(VCC)이 컬렉터단에 연결된 트랜지스터(Q)로 구성되어 베이스단의 전압이 에미터단의 전압과 문턱전압의 합보다 클 경우 턴온되는 충전전압 공급부(3)와; 상기 충전부(2)의 저항(R1)과 커패시터(C1) 사이의 접점에 입력단이 연결되어, 입력전압(VO1)이 제1레벨(VA)에서 제2레벨(VB)로 상승중이면 출력전압(VO2)은 로우레벨을 유지하고 입력전압(VO1)이 제2레벨(VB)에서 제1레벨(VA)로 하강중이면 출력전압은 (VO2)은 하이레벨을 유지하는 슈미트트리거(4)와, 상기 충전부(2)의 커패시터 양단에 저항(R2)과 스위칭 소자(S)가 직렬로 연결되고, 상기 스위칭 소자(S)는 상기 슈미트 트리거(4)의 출력단을 입력으로 하여 구성되며, 상기 슈미트 트리거(4)의 출력전압(VO2)이 하이레벨일 경우 스위칭 소자(S)의 접점이 상기 저항(R2)에 연결되도록 하여 커패시터(C1)와 저항(R2)에 의해 형성되는 폐루프를 통해 커패시터의 방전동작이 수행되도록 하는 방전부(5)로 이루어지는 것을 특징으로 하는 오실레이터 회로.A reference voltage generator 1 composed of two resistors R3 and R4 connected in series and for distributing the voltage of the power supply VCC; A charging unit 2 composed of a resistor R1 and a capacitor C1 connected in series and performing a charging operation and a discharge operation; The base terminal is connected to the contact between the two resistors (R3, R4) of the reference voltage generator 1, the emitter terminal is connected to the contact between the resistor (R1) and the capacitor (C1) of the charging unit (2) A charging voltage supply unit 3 configured to include a transistor Q connected to a collector terminal such that the power supply VCC is turned on when the voltage at the base terminal is greater than the sum of the voltage at the emitter stage and the threshold voltage; An input terminal is connected to a contact between the resistor R1 and the capacitor C1 of the charging unit 2, and if the input voltage VO1 is rising from the first level VA to the second level VB, the output voltage ( VO2 maintains a low level, and if the input voltage VO1 is falling from the second level VB to the first level VA, the Schmitt trigger 4 which maintains the output voltage (VO2) at a high level; A resistor R2 and a switching element S are connected in series to both ends of the capacitor of the charging unit 2, and the switching element S is configured by inputting an output terminal of the Schmitt trigger 4 as an input. When the output voltage VO2 of (4) is at a high level, the contact of the switching element S is connected to the resistor R2 so that the capacitor can be connected through the closed loop formed by the capacitor C1 and the resistor R2. An oscillator circuit, characterized in that it comprises a discharge section (5) for performing a discharge operation. 제5항에 있어서, 상기한 기준전압 발생부(1)의 두 저항(R3,R4)의 저항값의 비는 상기 저항(R4)에 인가된 전압이 제1레벨(VA)이 되도록 세팅됨을 특징으로 하는 오실레이터 회로.The method of claim 5, wherein the ratio of the resistance values of the two resistors R3 and R4 of the reference voltage generator 1 is set such that the voltage applied to the resistor R4 becomes the first level VA. Oscillator circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950009775A 1995-04-25 1995-04-25 Rapid charging circuit Expired - Fee Related KR0169391B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950009775A KR0169391B1 (en) 1995-04-25 1995-04-25 Rapid charging circuit

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Application Number Priority Date Filing Date Title
KR1019950009775A KR0169391B1 (en) 1995-04-25 1995-04-25 Rapid charging circuit

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KR960039527A true KR960039527A (en) 1996-11-25
KR0169391B1 KR0169391B1 (en) 1999-03-20

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