CN201590670U - Switching power supply type battery charger - Google Patents
Switching power supply type battery charger Download PDFInfo
- Publication number
- CN201590670U CN201590670U CN2009202631366U CN200920263136U CN201590670U CN 201590670 U CN201590670 U CN 201590670U CN 2009202631366 U CN2009202631366 U CN 2009202631366U CN 200920263136 U CN200920263136 U CN 200920263136U CN 201590670 U CN201590670 U CN 201590670U
- Authority
- CN
- China
- Prior art keywords
- circuit
- output
- power supply
- operational amplifier
- control switch
- 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
Links
Images
Classifications
-
- 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
Abstract
The utility model discloses a switching power supply type battery charger which comprises a switching power supply, wherein the output end of the switching power supply is connected with an integrated control switch circuit, the output end of the integrated control switch circuit is connected with a voltage protection circuit, the output end of the voltage protection circuit is connected with a current locking circuit, the output end of the current locking circuit is used for be connected with a battery, and the output ends of the voltage protection circuit and the current locking circuit are respectively fed back and connected to the integrated control switch circuit. The switching power supply type battery charger can fully charge the battery no matter whether the battery adopts a lead-acid battery or a lithium battery, automatically regulate the charging voltage and the charging current and realize high charging efficiency; and the double insurance circuits of the voltage protection circuit and the current locking circuit can effectively protect the rechargeable battery from being damaged due to too high charging voltage or current and prolong the service life of the battery. As a battery charger, the switching power supply type battery charger is applied in the aspect of battery charging.
Description
Technical field
The utility model relates to the electric battery electrifier of a kind of electric battery electrifier, particularly a kind of switch power supply type.
Background technology
Traditional electric battery electrifier generally all is by transformer, rectification module rectification, then by the linear voltage regulator voltage stabilizing, charge the battery through current-limiting resistance at last, this charger exists battery charge to be not fully filled, charging needs defectives such as manual intervention adjustment, charge efficiency be low.The electric battery electrifier that switch power supply type is also arranged now on the market; and the electric battery electrifier of this switch power supply type generally all is that current/voltage is set; and do not have voltage voltage-limiting protection circuit and a current limitation protective circuit, when overtension or electric current are excessive, will damage battery or reduce life-span of battery.
The utility model content
In order to solve above-mentioned technical problem, the purpose of this utility model provides a kind of electric battery electrifier that possesses the switch power supply type of voltage protection, current protection double insurance, highly effective.
The technical scheme that its technical problem that solves the utility model adopts is:
The electric battery electrifier of switch power supply type; comprise Switching Power Supply; the output of Switching Power Supply is connected with integrated control switch circuit; the output of integrated control switch circuit is connected with voltage protection circuit; the output of voltage protection circuit is connected with the electric current lock-in circuit; the output of described electric current lock-in circuit is used for being connected with battery, and the output of described voltage protection circuit and electric current lock-in circuit feeds back respectively and is connected to integrated control switch circuit.
Further; described voltage protection circuit comprises operational amplifier; the inverting input of described operational amplifier is connected to+the 5V reference voltage; the in-phase input end of operational amplifier is connected to the branch pressure side of the output pin of integrated control switch circuit through resistance, and the output of described operational amplifier is connected with the shutoff control pin of integrated control switch circuit through resistance.
Further, described electric current lock-in circuit comprises current detection circuit and operational amplifier, out-phase and in-phase input end that the output of described current detection circuit and reference voltage are input to operational amplifier respectively compare, the output of operational amplifier is connected with charge characteristic and adjusts circuit and charged state display circuit, and described charge characteristic is adjusted circuit and is connected to integrated control switch circuit.
Further, current detection circuit comprises current transformer, and the output of circuit instrument transformer is connected with rectification circuit, and the output of rectification circuit is parallel with resistance and electric capacity.
Further, the output of described operational amplifier is through current-limiting resistance driven for emitting lights diode, the output of described operational amplifier and 5V reference voltage be the out-phase and the in-phase input end of input operational amplifier respectively, and the output of operational amplifier is through current-limiting resistance driven for emitting lights diode.
Further, the output of described operational amplifier passes through the size that current-limiting resistance control switch pipe is regulated the output pin resistance to earth of integrated control switch circuit.
Further, described integrated control switch circuit is the SG3525A integrated chip.
The beneficial effects of the utility model are: though this switch power supply type electric battery electrifier to lead-acid battery or lithium battery can both be full of battery, regulate charging voltage and charging current automatically, and charge efficiency height; Voltage protection circuit and electric current lock-in circuit double insurance circuit effectively protect rechargeable battery can because of charging voltage or electric current is not too high not damage, and improve the useful life of battery.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a system block diagram of the present utility model;
Fig. 2 is an electric current lock-in circuit block diagram of the present utility model;
Fig. 3 is a voltage protection circuit schematic diagram of the present utility model;
Fig. 4 is a current detection circuit schematic diagram of the present utility model;
Fig. 5 is an electric current lock-in circuit schematic diagram of the present utility model.
Embodiment
With reference to Fig. 1; the electric battery electrifier of switch power supply type; comprise Switching Power Supply; the output of Switching Power Supply is connected with integrated control switch circuit; the output of integrated control switch circuit is connected with voltage protection circuit; the output of voltage protection circuit is connected with the electric current lock-in circuit, and the output of described electric current lock-in circuit is used for being connected with battery, and the output of described voltage protection circuit and electric current lock-in circuit feeds back respectively and is connected to integrated control switch circuit.
As the preferred embodiment described integrated control switch circuit of the utility model is the SG3525A integrated chip.
With further reference to Fig. 3; described voltage protection circuit comprises operational amplifier IC6D; the inverting input of described operational amplifier IC6D is connected to+the 5V reference voltage; the in-phase input end of operational amplifier IC6D is connected to the output pin OUT of integrated control switch circuit through resistance R 39; the branch pressure side of R40, the output of described operational amplifier IC6D is connected with the shutoff control pin SD of integrated control switch circuit through resistance R 41.
Charger requires the multistage constant current constant voltage to charge the battery, the magnitude of voltage that the charging voltage of charger must strictness be born at institute's rechargable battery, and this circuit has used one or two discharge circuit to make voltage comparator, charging voltage is controlled at the scope of regulation.16 pin by SG3525A provide a reference source of 5V ± 1% to compare for the end of oppisite phase of IC6D and the in-phase end of IC6D; if the OUT output voltage is higher than set point; IC6D just exports high potential, turn-offs output for the 10 pin SD of IC5 by R41, thus protection battery and charger.
When the voltage of the 10 pin SD of 10 function declarations of IC5: SG3525A surpassed 0.7V, bus was carried out the current limliting operation; When 10 pin voltages during, will make the PWM latch turn-off output greater than 1.4V.
With further reference to Fig. 2 and Fig. 5, described electric current lock-in circuit comprises current detection circuit and operational amplifier IC7A, out-phase and in-phase input end that the output of described current detection circuit and reference voltage are input to operational amplifier IC7A respectively compare, the output of operational amplifier IC7A is connected with charge characteristic and adjusts circuit and charged state display circuit, and described charge characteristic is adjusted circuit and is connected to integrated control switch circuit.
With further reference to Fig. 4, current detection circuit comprises current transformer TX, and the output of circuit instrument transformer TX is connected with rectification circuit D16～D19, and the output of rectification circuit D16～D19 is parallel with resistance R 51, R52 and electric capacity 139.
Further, the output of described operational amplifier IC7A is through current-limiting resistance R105 driven for emitting lights diode (LED) 1, the output of described operational amplifier IC7A and 5V reference voltage be out-phase and the in-phase input end of input operational amplifier IC7B respectively, and the output of operational amplifier IC7B is through current-limiting resistance R106 driven for emitting lights diode (LED) 2.
Further, the output of described operational amplifier IC7A passes through the size that current-limiting resistance R102 control switch pipe is regulated the output pin OUT resistance to earth of integrated control switch circuit.
The elementary elementary winding that seals in the current transformer TX of a low circle at switch transformer utilizes the primary winding current of electromagnetic induction principle current transformer big more, and the secondary X end induced voltage of instrument transformer TX is just high more.IC7A and IC7B aim at charged state and indication and the circuit that designs, the homophase termination X voltage of IC7A wherein, anti-phase termination 12V and accessory power supply design an adjustable voltage as required, different as requested and transfer VR103, make IC7A upset output high potential, make the Q101 conducting, change the magnitude of voltage of output, reached the purpose of boosting.The variation of the high electronegative potential of IC7A output simultaneously also makes the output of IC7B follow the upset of IC7B and change, by LED1, and the light on and off of LED2 and indicating.
More than be that preferable enforcement of the present utility model is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (7)
1. the electric battery electrifier of switch power supply type; comprise Switching Power Supply; it is characterized in that: the output of Switching Power Supply is connected with integrated control switch circuit; the output of integrated control switch circuit is connected with voltage protection circuit; the output of voltage protection circuit is connected with the electric current lock-in circuit; the output of described electric current lock-in circuit is used for being connected with battery, and the output of described voltage protection circuit and electric current lock-in circuit feeds back respectively and is connected to integrated control switch circuit.
2. the electric battery electrifier of switch power supply type according to claim 1; it is characterized in that: described voltage protection circuit comprises operational amplifier (IC6D); the inverting input of described operational amplifier (IC6D) is connected to+the 5V reference voltage; the in-phase input end of operational amplifier (IC6D) is connected to the output pin (OUT) of integrated control switch circuit through resistance (R39; R40) branch pressure side, the output of described operational amplifier (IC6D) is connected with the shutoff control pin (SD) of integrated control switch circuit through resistance (R41).
3. the electric battery electrifier of switch power supply type according to claim 1, it is characterized in that: described electric current lock-in circuit comprises current detection circuit and operational amplifier (IC7A), out-phase and in-phase input end that the output of described current detection circuit and reference voltage are input to operational amplifier (IC7A) respectively compare, the output of operational amplifier (IC7A) is connected with charge characteristic and adjusts circuit and charged state display circuit, and described charge characteristic is adjusted circuit and is connected to integrated control switch circuit.
4. the electric battery electrifier of switch power supply type according to claim 3, it is characterized in that: current detection circuit comprises current transformer (TX), the output of circuit instrument transformer (TX) is connected with rectification circuit (D16～D19), rectification circuit (output of D16～D19) be parallel with resistance (R51, R52) and electric capacity (139).
5. the electric battery electrifier of switch power supply type according to claim 3, it is characterized in that: the output of described operational amplifier (IC7A) is through current-limiting resistance (R105) driven for emitting lights diode (LED1), the output of described operational amplifier (IC7A) and 5V reference voltage be the out-phase and the in-phase input end of input operational amplifier (IC7B) respectively, and the output of operational amplifier (IC7B) is through current-limiting resistance (R106) driven for emitting lights diode (LED2).
6. the electric battery electrifier of switch power supply type according to claim 3 is characterized in that: the size that the output of described operational amplifier (IC7A) is regulated output pin (OUT) resistance to earth of integrated control switch circuit through current-limiting resistance (R102) control switch pipe.
7. the electric battery electrifier of switch power supply type according to claim 1, it is characterized in that: described integrated control switch circuit is the SG3525A integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202631366U CN201590670U (en) | 2009-11-20 | 2009-11-20 | Switching power supply type battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202631366U CN201590670U (en) | 2009-11-20 | 2009-11-20 | Switching power supply type battery charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590670U true CN201590670U (en) | 2010-09-22 |
Family
ID=42750464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202631366U Expired - Fee Related CN201590670U (en) | 2009-11-20 | 2009-11-20 | Switching power supply type battery charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201590670U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005734A (en) * | 2010-10-20 | 2011-04-06 | 无锡中星微电子有限公司 | Battery protection integrated circuit and system |
| CN103516019A (en) * | 2013-09-17 | 2014-01-15 | 林华旺 | Motor set with storage battery charger |
-
2009
- 2009-11-20 CN CN2009202631366U patent/CN201590670U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005734A (en) * | 2010-10-20 | 2011-04-06 | 无锡中星微电子有限公司 | Battery protection integrated circuit and system |
| CN102005734B (en) * | 2010-10-20 | 2013-09-18 | 无锡中星微电子有限公司 | Battery protection integrated circuit and system |
| CN103516019A (en) * | 2013-09-17 | 2014-01-15 | 林华旺 | Motor set with storage battery charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205105426U (en) | Automatic linear constant current LED drive circuit of full voltage sectional type of switching mode | |
| CN104348192A (en) | USB charger of electronic cigarette | |
| CN105282929A (en) | Full voltage segmented linear constant current LED drive circuit capable of switching modes automatically | |
| CN203339772U (en) | Electronic cigarette USB charger | |
| BRPI1001912A2 (en) | BATTERY CHARGER, AUTOMOTIVE VEHICLE AND METHOD FOR OPERATING A BATTERY CHARGER | |
| US7602151B2 (en) | Charger with output voltage compensation | |
| CN102438352A (en) | Integrated intelligent control type lighting lamp control circuit | |
| CN103260303A (en) | Portable lighting device, and method and controller for controlling power supply to load | |
| CN201590670U (en) | Switching power supply type battery charger | |
| CN102315679B (en) | Rapid charging circuit with protection circuit | |
| CN102421221A (en) | Emergency lighting system based on LED (Light-Emitting Diode) assembled lamp | |
| CN102122737A (en) | Method and device for charging in multiple modes through driving switch by battery | |
| CN106953371A (en) | A kind of alternating current CT energy taking devices and anti-overvoltage circuit | |
| CN104735845A (en) | Efficient 60-W LED driving power source | |
| CN103139963A (en) | Constant voltage circuit of light-emitting diode (LED) navigation aid lamp and navigation aid lamp provided with the same | |
| CN202218052U (en) | Rapid charging device possessing protective circuit | |
| CN104426220A (en) | Voltage regulation circuit | |
| US7151358B1 (en) | Multi-battery automatic charging circuit with individual regulator | |
| CN201919193U (en) | Uninterrupted illuminating system | |
| CN210670654U (en) | Circuit for controlling brightness of emergency lighting lamp by using switch | |
| CN104838555A (en) | Power quality issue mitigation through hybrid grid | |
| CN204231000U (en) | A kind of high speed power line carrier-specific intelligent power controller | |
| CN210958902U (en) | Circuit for controlling charging of emergency lighting lamp by using switch | |
| CN109618454B (en) | LED dimming control system | |
| CN208806991U (en) | A kind of constant pressure dimming power source and light adjusting system for lighting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |