CN201066381Y - Charging indictor - Google Patents
Charging indictor Download PDFInfo
- Publication number
- CN201066381Y CN201066381Y CNU2007201232139U CN200720123213U CN201066381Y CN 201066381 Y CN201066381 Y CN 201066381Y CN U2007201232139 U CNU2007201232139 U CN U2007201232139U CN 200720123213 U CN200720123213 U CN 200720123213U CN 201066381 Y CN201066381 Y CN 201066381Y
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- CN
- China
- Prior art keywords
- pin
- integrated circuit
- charging
- light
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a charge indicator. The pin 4 of an integrated circuit (IC) as the core element is an input end, R1 is a resistor detecting the charge current, the pin 3 of the integrated circuit (IC) is an output end, and light-emitting diodes (V1, V2) are indicator lights which are respectively connected with resistors (R2, R3) to form indicator circuits. When the pin 3 of the integrated circuit (IC) outputs a high level, the light-emitting diode (V1) is off, and the light-emitting diode (V2) is on and emits light in order to indicate charging. When the pin 3 of the integrated circuit (IC) outputs a low level, the light-emitting diode (V2) is off, and the light-emitting diode (V1) is on and emits light in order to indicate charge saturation. The charge indicator applicable to various chargers can be applied to the charging of various storage cells, and moreover, the charge indicator has the advantages of simple structure, reliable operation and convenient use.
Description
Technical field
A kind of charge indicator is the part of charger, can be used on the various charging equipments, shows charged state.
Background technology
Large-scale charger or title charging set, reometer and the voltage tables of adopting as the charging indication more, also have and only adopt reometer or voltage table, small-sized charger adopts pilot lamp or reometer as the charging indication more, at present, also using reometer, exist volume big on the mine lamp charging device, pointing accuracy is not high, deficiencies such as reading difficulty, functional reliability difference.Chinese patent ZL94217491.7 provides a kind of charge indicator, is to detect the foundation of charging voltage as indication, has following three kinds of situations inapplicable:
1. constant current charge.The terminal voltage of accumulator when charging is subjected to the influence of electricity capacity and two factors of charging current, so the terminal voltage of accumulator can not be as the whether saturated foundation of charging, this foundation is unscientific to saving your breath.
2. lithium particle battery.General lithium particle battery all has charging and holding circuit in the inside of battery, therefore, the voltage between the two poles of the earth, battery outside is not the terminal voltage of accumulator.
3. the fairly perfect charger of control circuit.This charger is in the later stage of charging, and charging voltage is constant substantially, and charging current is more and more littler, and therefore, the terminal voltage of accumulator does not reflect the degree that its charging is saturated.
The utility model content
The utility model provides a kind of charge indicator that can be used for various chargers and various accumulators, and simple in structure, and reliable operation is easy to use.As depicted in figs. 1 and 2, by time-base integrated circuit (IC), light emitting diode (V1), (V2) and resistance (R1), (R2), (R3) and formation such as wiring board, 3 pin of integrated circuit (IC) are output terminal, 8 pin connect positive source, 1,2,6 pin connect power cathode, it is characterized in that: integrated circuit (IC) is one 555 time base circuit, (IC) 4 pin are input end, be connected with the negative pole that is filled accumulator E, (IC) connect a resistance (R1) between 4 pin and 1 pin, an in addition diode (V3) in parallel with (R1), anode (V3) connects 4 pin of (IC), and negative electrode connects 1 pin of (IC).3 pin of integrated circuit (IC) are output terminal, and light emitting diode (V1), (V2) are pilot lamp, constitute indicating circuit with resistance (R2) with (R3) respectively, and the two ends of light emitting diode (V2) also are parallel with resistance (R4).(IC) be connected charging indicator light (V2) between 3 pin and 1 pin, anode (V2) connects 3 pin of (IC), and its negative electrode connects power cathode by resistance R 3; (IC) be connected saturated pilot lamp (V1) between 3 pin and 8 pin.(V1) negative electrode connects 3 pin of (IC), and its anode connects positive source by resistance (R2).
Description of drawings
Fig. 1---charge indicator basic principle schematic.
Fig. 2---charge indicator embodiment circuit diagram.
Specific embodiments
Embodiment: the principle of work and the course of work are as shown in Figure 2, time-base integrated circuit (IC) is a core devices of the present utility model, its 4 pin is an input end, and (R1) for detecting the resistance of charging current, the initial stage charging current of charging is bigger, (R1) voltage at two ends is just high, when 4 pin (IC) detect high voltage, 3 pin output high level (IC), light emitting diode (V1) ends, (V2) conducting is luminous, charges to show.Carrying out along with charging process, the continuous increase of accumulator capacity, charging current is more and more littler, and a lot of chargers are in the later stage of charging, be all to be trickle charge after saturated, and very little charging current makes the voltage at (R1) two ends very low, when 4 pin (IC) detect low-voltage, and (IC) forced resetting, its 3 pin output low level, light emitting diode (V2) ends, and (V1) conducting is luminous, and is saturated to show charging.Realized the purpose of this utility model.
Diode (V3) is in parallel with resistance (R1), and its effect is an overtension of avoiding (R1) two ends, surpasses the later electric current of 0.7V in theory, all not by resistance (R1), has guaranteed that the voltage at resistance two ends no longer raises through diode (V3) ground connection.The two ends of light emitting diode (V2) also are parallel with resistance (R4), reliably end to guarantee (V2).
Claims (4)
1. charge indicator, by integrated circuit (IC), light emitting diode (V1), (V2) and formations such as resistance (R1), (R2), (R3) and wiring board, 3 pin of integrated circuit (IC) are output terminal, 8 pin connect positive source, 1,2,6 pin connect power cathode, it is characterized in that: integrated circuit (IC) is one 555 time base circuit, and 4 pin (IC) are input end, be connected with the negative pole that is filled accumulator E, connect a resistance R 1 between 4 pin (IC) and 1 pin.
2. charger according to claim 1, it is characterized in that: not only be connected a resistance R 1 between 4 pin of integrated circuit (IC) and 1 pin, but also connect one with resistance diode connected in parallel V3, the anode of V3 connects 4 pin of (IC), negative electrode connects 1 pin of (IC).
3. charger according to claim 1 is characterized in that: be connected charging indicator light V2 between 3 pin of integrated circuit (IC) and 1 pin, be connected saturated pilot lamp V1 between 3 pin (IC) and 8 pin.
4. charger according to claim 1 is characterized in that: the two ends of charging indicator light V2 resistance R 4 in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201232139U CN201066381Y (en) | 2007-08-08 | 2007-08-08 | Charging indictor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201232139U CN201066381Y (en) | 2007-08-08 | 2007-08-08 | Charging indictor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066381Y true CN201066381Y (en) | 2008-05-28 |
Family
ID=39483564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201232139U Expired - Fee Related CN201066381Y (en) | 2007-08-08 | 2007-08-08 | Charging indictor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201066381Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668362A (en) * | 2009-08-20 | 2010-03-10 | 利尔达科技有限公司 | Charging indicator light circuit |
-
2007
- 2007-08-08 CN CNU2007201232139U patent/CN201066381Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668362A (en) * | 2009-08-20 | 2010-03-10 | 利尔达科技有限公司 | Charging indicator light circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20090908 |