KR960019896A - Charge control circuit of rapid charging device - Google Patents

Charge control circuit of rapid charging device Download PDF

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Publication number
KR960019896A
KR960019896A KR1019940029352A KR19940029352A KR960019896A KR 960019896 A KR960019896 A KR 960019896A KR 1019940029352 A KR1019940029352 A KR 1019940029352A KR 19940029352 A KR19940029352 A KR 19940029352A KR 960019896 A KR960019896 A KR 960019896A
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KR
South Korea
Prior art keywords
charging
voltage
charge
terminal
battery
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KR1019940029352A
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Korean (ko)
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KR0125141B1 (en
Inventor
박종해
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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
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/04—Voltage dividers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • 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
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • 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]

Abstract

1. 청구범위에 기재된 발명이 속하는 기술 분야1. TECHNICAL FIELD OF THE INVENTION

급속충전장치의 충전제어회로에 관한 것으로, 특히 저전압 검출신호와 전원스위치의 스위칭에 연동하여 배터의 충전을 제어하는 회로에 관한 것이다.The present invention relates to a charge control circuit of a rapid charging device, and more particularly, to a circuit for controlling charging of a battery in conjunction with switching of a low voltage detection signal and a power switch.

2. 발명에 해결하려고 하는 기술적 과제2. Technical problem to be solved in invention

전원 스위치가 “오프”되어질때 급속충전전압 공급회로의 충전전류의 패스가 배터리의 전압에 관계없이 형성되어 배터리의 과충전이 발생하였다. 본 발명은 배터리의 전압이 저전압이 아닌상태에서 전원 스위치가“오프”되어질때 급속충전전압 공급회로의 충전전류의 패스를 차단하는 회로를 제공한다.When the power switch was turned "off", a path of charge current of the fast charging voltage supply circuit was formed regardless of the voltage of the battery, resulting in overcharging of the battery. The present invention provides a circuit that cuts off the path of charging current of the fast charging voltage supply circuit when the power switch is turned “off” while the voltage of the battery is not low.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

베이스 유니트와 접속되는 충전단자의 전압을 검출하고, 상기 검출된 충전전압을 저전압 검출회로의 출력의 상태에 따라서 배터리에 충전전압을 공급하는 충전전압 공급회로의 충전패스 형성 스위치의 제어신호로서 공급하도록 구성한다.Detect a voltage of a charging terminal connected to the base unit, and supply the detected charging voltage as a control signal of a charge path forming switch of a charging voltage supply circuit for supplying the charging voltage to the battery according to the state of the output of the low voltage detection circuit; Configure.

4. 발명의 중요한 용도4. Important uses of the invention

무선전화기의 급속충전제어장치.Rapid charge control device for wireless telephones.

Description

급속충전장치의 충전제어회로Charge control circuit of rapid charging device

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

제2도는 본 발명에 따른 급속충전장치의 충전제어회로도.2 is a charge control circuit diagram of a rapid charging device according to the present invention.

Claims (7)

충전 배터리와, 상기 충전 배터리의 전압을 각각의 저전압 검출 기준전압 및 충천레벨 기준전압과 비교하여 전압 검출신호 및 충전제어신호를 각각 오푼 콜렉터단자로 출력하는 저전압 검출회로 및 충전제어회로를 구비한 급속충전장치의 충전제어회로에 있어서, 충전전압은 입력하는 충전단자와 상기 배터리의 사이에 접속되어 있으며 상기 충전제어신호에 응답하여 제1충전전류를 상기 배터리에 공급하고, 급속충전제어신호에 응답하여 상기 제1충전전류보다 더 큰 제2충전전류를 상기 충전 배터리에 공급하는 충전전압 공급수단과, 상기 충전단자와 상기 저전압 검출회로의 출력단자에의 사이에 접속되어 상기 충전단자로부터 입력되는 충전전압을 검출하여 출력하며, 상기 저전압 검출회로부터 출력되는 저전압 검출신호에 응답하여 충전제어신호를 상기 충전전압 공급수단으로 공급하는 충전제어수단으로 구성함을 특징으로 하는 급속충전장치의 충전제어회로.A fast battery having a low voltage detection circuit and a charge control circuit for outputting a voltage detection signal and a charge control signal to the collector terminal of each of the rechargeable batteries by comparing the voltage of the rechargeable battery with the low voltage detection reference voltage and the charging level reference voltage, respectively. In the charging control circuit of the charging device, the charging voltage is connected between the input charging terminal and the battery and supplies a first charging current to the battery in response to the charging control signal, and in response to the rapid charging control signal. Charge voltage supply means for supplying the charge battery with a second charge current larger than the first charge current, and a charge voltage input from the charge terminal connected between the charge terminal and an output terminal of the low voltage detection circuit. Is detected and outputted, and the charge control signal is generated in response to the low voltage detection signal output from the low voltage detection circuit. A charging control circuit of a rapid charging apparatus characterized in that it consists of a charge control device for supplying to said charging voltage supply means. 제1항에 있어서, 상기 충전전압 공급수단은, 상기 충전단자로부터 상기 충전 배터리의 전압단자로 일방향 접속된 전류제항 제1 및 제2전류 제한 소자 및 역전류 방지용 다이오드와, 상기 급속충전제어신호의 입력에 응답하여 상기 충전단자로부터의 충전전압을 상기 충전 배터리의 전압단자로 공급하는 제1스위치와. 상기 제2전류 제한 소자에 병렬 접속되어 있으며 상기 충전제어신호의 입력에 응답 스위칭하여 제2전류 제한 소자의 양단을 접속하는 제2스위치로 구성함을 특징으로 하는 급속충전장치의 충전제어회로.The method of claim 1, wherein the charging voltage supply means comprises a first and second current limiting element and a reverse current prevention diode connected in one direction from the charging terminal to the voltage terminal of the charging battery, and the rapid charge control signal. A first switch configured to supply a charging voltage from the charging terminal to a voltage terminal of the charging battery in response to an input. And a second switch connected in parallel to the second current limiting element and configured to switch in response to an input of the charge control signal to connect both ends of the second current limiting element. 제2항에 있어서, 상기 충전제어수단은, 상기 충전단자로부터의 충전전압을 분압하여 출력하는 충전전압 검출수단과, 상기 충전전압 검출수단의 출력단자로부터 상기 저전압 검출회로의 출력단자 및 상기 제1스위치의 제어단자의 방향으로 접속되어 상기 저전압 검출회로로부터 저전압 검출신호가 출력시에만 응답하여 상기 제1스위치로 충전제어신호를 출력하는 수단으로 구성함을 특징으로 하는 충전제어회로.3. The charge control means according to claim 2, wherein the charge control means comprises: charge voltage detection means for dividing and outputting a charge voltage from the charge terminal; an output terminal of the low voltage detection circuit and the first terminal from an output terminal of the charge voltage detection means; And means for outputting a charging control signal to said first switch in response to only when a low voltage detection signal is output from said low voltage detection circuit. 충전 배터리와, 상기 충전 배터리의 전압을 각각의 저전압 검출 기준전압 및 충전레벨 기준전압과 비교하여 전압 검출신호 및 충전제어신호를 각각 오푼 콜렉터단자로 출력하는 저전압 검출회로 및 충전제어희로를 구비한 급속충전장치의 충전제어회로에 있어서, 충전전압을 입력하는 충전단자와 상기 배터리의 사이에 접속되어 있으며 상기 충전제어신호에 응답하여 제1충전전류를 상기 배터리에 공급하고, 급속충전제어신호에 응답하여 상기 제1충전전류보다 더 큰 제2충전전류를 상기 충전 배터리에 공급하는 충전전압 공급수단, 상기 충전단자로 입력되는 전압을 검출하여 충전전압 검출신호를 출력하는 충전전압 검출수단과, 상기 저전압 검출회로의 출력단자와 상기 충전전압 검출수단의 출력단자에 접속되어 상기 충전전압 검출신호 및 저전압 검출신호에 응답하여 급속충전 제어신호를 충전전압 공급수단으로 공급하는 급속충전제어수단으로 구성함을 특징으로 하는 급속충전장치의 충전제어회로.A fast battery having a low voltage detection circuit and a charge control path for outputting a voltage detection signal and a charge control signal to the collector terminal of each of the rechargeable batteries by comparing the voltage of the rechargeable battery with the low voltage detection reference voltage and the charge level reference voltage, respectively. In a charge control circuit of a charging device, connected between a charging terminal for inputting a charging voltage and the battery, the first charging current is supplied to the battery in response to the charging control signal, and in response to the rapid charging control signal. Charging voltage supply means for supplying the charging battery with a second charging current larger than the first charging current, charging voltage detecting means for detecting a voltage input to the charging terminal and outputting a charging voltage detection signal, and detecting the low voltage; Connected to an output terminal of a circuit and an output terminal of the charging voltage detecting means, the charging voltage detecting signal and A rapid charging in response to the detection signal the control signal rapidly charge voltage supply means for supplying the charge control of rapid charging apparatus characterized in that it consists of a charge control circuit means. 제4항에 있어서, 상기 충전전압 검출수단은, 상기 충전단자와 접지사이에 직접접촉되어 입력되는 충전전압을 분압하여 충전전압 검출신호를 출력하는 두개의 저항(R12,R13)과, 상기 두개의 저항(R12,R13)의 접속노드와 상기 저전압 검출회로의 출력단자의 사이에 일방향 접속된 다이오드(D3) 및 저항(R14)으로 구성함을 특징으로 하는 급속충전장치의 충전제어회로.The charging voltage detecting means comprises: two resistors (R12, R13) for outputting a charging voltage detection signal by dividing a charging voltage input by being in direct contact between the charging terminal and the ground; A charge control circuit of a rapid charging device, comprising a diode (D3) and a resistor (R14) connected in one direction between a connection node of resistors (R12, R13) and an output terminal of the low voltage detection circuit. 제5항에 있어서, 상기 충전전압공급수단은, 상기 충전단자로부터 상기 충전 배터리의 전압단자로 일방향 접속된 전류제항 제1 및 제2전류 제한 소자 및 역전류 방지용 다이오드와, 상기 급속충전제어신호의 입력에 응답하여 상기 충전단자로부터의 충전전압을 상기 충전 배터리의 전압단자로 공급하는 제1스위치와, 상기 제2전류 제한 소자에 병렬 접속되어 있으며 상기 충전제어신호의 입력에 응답 스위칭하여 제2전류 제한 소자의 양단을 접속하는 제2스위치로 구성함을 특징으로 하는 급속충전장치의 충전제어희로.6. The method of claim 5, wherein the charging voltage supplying means comprises: a current-limiting first and second current limiting element and a reverse current preventing diode connected in one direction from the charging terminal to the voltage terminal of the charging battery, and the rapid charge control signal. A first switch for supplying a charging voltage from the charging terminal to the voltage terminal of the charging battery in response to an input, and a second current connected in parallel with the second current limiting element and switching in response to the input of the charging control signal; Charging control of the rapid charging device, characterized in that the second switch for connecting both ends of the limiting element. 제6항에 있어서, 상기 급속충전제어수단은, 상기 충전 배터리의 출력단자와 접지사이에 접속되어 상기 충전전압 검출수단과 저전압 검출회로의 출력단자로부터 출력되는 충전전압 검출신호와 저전압 검출신호의 입력에 의해 “온/오프” 스위칭되는 트랜지스터(Q4)와, 상기 트랜지스터(Q3)의 베이스와 접지사이에 접속되어 있으며 상기 트랜지스터(Q4)의 콜렉터로부터 출력되는 스위칭신호에 의해 급속충전제어신호를 출력/차단하는 트랜지스터(Q5)로 구성함을 특징으로 하는 급속충전장치의 충전제어회로.7. The method of claim 6, wherein the rapid charge control means is connected between the output terminal of the rechargeable battery and the ground and inputs a charge voltage detection signal and a low voltage detection signal output from the charge voltage detection means and an output terminal of the low voltage detection circuit. A fast charge control signal is outputted by a switching signal which is connected between the transistor Q4 and " ON / OFF " switched between the base and the ground of the transistor Q3 and output from the collector of the transistor Q4. Charge control circuit of the rapid charging device, characterized in that consisting of a transistor (Q5) for blocking. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940029352A 1994-11-09 1994-11-09 Charge control circuit for rapid charging device KR0125141B1 (en)

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KR0125141B1 KR0125141B1 (en) 1997-12-04

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