CN204103577U - Online integrated switch mode constant current charger - Google Patents
Online integrated switch mode constant current charger Download PDFInfo
- Publication number
- CN204103577U CN204103577U CN201420681054.4U CN201420681054U CN204103577U CN 204103577 U CN204103577 U CN 204103577U CN 201420681054 U CN201420681054 U CN 201420681054U CN 204103577 U CN204103577 U CN 204103577U
- Authority
- CN
- China
- Prior art keywords
- constant current
- circuit
- pin
- current charge
- 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.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of online integrated switch mode constant current charger, comprise Industrial Frequency Transformer, rectification and filter circuit, constant current charge power circuit, constant current charge control circuit and output filter circuit.AC220 volt exchanges exports to integral bridge type rectifier D1, through the direct voltage V of electric capacity C1 filtering stable output after D1 rectification after online Industrial Frequency Transformer T1 transformation
iN, direct voltage V
iNexport to constant current charge power circuit, constant current charge power circuit controls to export constant current to output filter circuit by constant current charge control circuit, then forms Constant Direct Current through output filter circuit filtering and exports.It is adaptable that the utility model has electrical network, the features such as output voltage range is wide, charging rate is fast, automatic floating mold filling formula, reliability is high, adaptive capacity to environment is strong.
Description
Technical field
The utility model relates to a kind of constant current charger, specifically, relates to a kind of online integrated switch mode constant current charger.
Background technology
Because storage battery internal resistance when feed is very low, charging current must carry out restriction guarantee charging safety, adopts special charger to charge to storage battery so general.Traditional charger adopts the mode of output series limiting resistor device to limit charging current, relatively simple for structure, but the current-limiting resistance of series connection makes the power consumption of charger self increase, and affects charge efficiency.Secondly, storage battery makes the charging interval increase close to when filling full because charging current reduces.And this charger does not generally support that floating charge pattern is charged.
Utility model content
The utility model is just in order to address the deficiencies of the prior art, and the online integrated switch mode constant current charger of one of design.
The utility model solves the technical scheme that its technical problem adopts:
A kind of online integrated switch mode constant current charger, comprises Industrial Frequency Transformer, rectification and filter circuit, constant current charge power circuit, constant current charge control circuit and output filter circuit.AC220 volt exchanges exports to integral bridge type rectifier D1, through the direct voltage V of electric capacity C1 filtering stable output after D1 rectification after online Industrial Frequency Transformer T1 transformation
iN, direct voltage V
iNexport to constant current charge power circuit, constant current charge power circuit controls to export constant current to output filter circuit by constant current charge control circuit, then forms Constant Direct Current through output filter circuit filtering and exports; Output filter circuit is made up of voltage stabilizing didoe D4 and filter capacitor C3, C4 parallel connection.
Described online integrated switch mode constant current charger, its constant current charge power circuit is made up of switch chopper, photoelectrical coupler, sampling resistor and peripheral circuit, and its circuit connecting relation is: direct voltage V
iNthe IN end of access switch chopper IC1, the SG end of switch chopper IC1 connects-Vout end, secondary 4 pin of VADJ termination photoelectrical coupler IC2-A of switch chopper IC1 and the intermediate point of resistance R* and R1 of series connection, the OUT terminating diode D2 negative electrode of switch chopper IC1 and inductance L 30 one end, diode D2 plus earth; Secondary 6 pin of the positive pole of another terminating diode of inductance L 30 D1 anode, electric capacity C2 and C3, diode D3 negative electrode, the resistance R* other end, electric capacity C4 and C5 positive pole, photoelectrical coupler IC2-A, then forward series diode D4 is connected to+Vout, and diode D1 negative electrode meets direct voltage V
iN; Series resistor Rs between GND end and-Vout hold; Electric capacity C2, C3 and C5 negative pole, diode D3 anode, another termination of resistance R1-Vout, and be connected with tie point R; Switch chopper IC1 is L4960, and photoelectrical coupler IC2 is TIL117.
Described online integrated switch mode constant current charger, its constant current charge control circuit is made up of three terminal regulator, operational amplifier, photoelectrical coupler and peripheral circuit, and its circuit connecting relation is: direct voltage V
iNconnect 1 pin of three terminal regulator IC4, the 2 pin ground connection of three terminal regulator IC4,3 pin connecting resistance R31 one end, operational amplifier IC3 power anode and electric capacity C32 positive pole, electric capacity C32 minus earth; Operational amplifier IC3 in-phase end is connected with tie point R by resistance R32, and end of oppisite phase is connected on the resistance R31 other end, and resistance R3* is serially connected between operational amplifier IC3 end of oppisite phase and GND; Operational amplifier IC3 negative terminal of powering meets GND, operational amplifier IC3 output is connected with elementary 1 pin of photoelectrical coupler IC2-B with inductance L 31 by series resistance R33, elementary 2 pin of photoelectrical coupler IC2-B meet GND, and electric capacity C31 forward is connected in parallel between elementary 1 pin of photoelectrical coupler IC2-B and 2 pin; Three terminal regulator IC4 is LM7806, and operational amplifier IC3 is LM358N.
A kind of online integrated switch mode constant current charger of the utility model, input adopts Industrial Frequency Transformer step-down, and direct current exports and adopts integrated switch chopper burning voltage.Charging control circuit adopts opto-coupled feedback, the constant restriction charging current of voltage comparator adjustment technology.Entity embedding all-metal closed structure is adopted to improve adaptive capacity to environment.At charge power circuit part, the Correctional tube of switch chopper inside is operated on off state, VADJ end is sampled to output voltage by the divider resistance of output, then chip control circuit is fed back to, chip control circuit is to after sampled signal process, control output voltage by the duty cycle of switching changing Correctional tube, realize voltage relatively stable.Exporting sampling adopts low resistivity value resistor to be connected on outlet line, output current change is detected by the change in voltage detecting sampling resistor two ends, feed back to Circuit tuning and carry out output voltage adjustment, make storage battery fill output voltage simultaneous adaptation adjustment in full process gradually, achieve the relative constancy of charging current.
The course of work of the present utility model is: alternating current 220V input first carries out isolated buck through Industrial Frequency Transformer, to meet the low-voltage power supply requirement of rear class chopper chip, pulsating direct current is converted to through current rectifying and wave filtering circuit, export through integrated switch chopper burning voltage again, charging control circuit adopts low resistance resistance sampling, opto-coupled feedback, voltage comparator adjustment output current.Wherein, exporting sampling adopts low resistivity value resistor to be connected on outlet line, output current change is detected by the change in voltage detecting sampling resistor two ends, feed back to Circuit tuning and carry out output voltage adjustment, make storage battery fill output voltage simultaneous adaptation adjustment in full process gradually, achieve the relative constancy of charging current.
The utility model has the following advantages compared with traditional linear power supply:
1, online mode of operation, directly accesses utility grid work.
2, constant current charging mode, ensures charging safety and quick charge demand.
3, battery is full of and automatically enters floating charge pattern afterwards.
4, all-metal sealing, entity embedding, resistance to harsh environment for use.
5, power supply grid is compatible strong.
The beneficial effects of the utility model have constant current charge to export, and charge loss is little, automatic floating mold filling formula, the feature such as the charging interval is short, electrical network is adaptable.
Accompanying drawing explanation
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model input power frequency step-down and rectification and filter circuit schematic diagram.
Fig. 3 is the utility model constant current charge power circuit schematic diagram.
Fig. 4 is the utility model constant current charge control circuit schematic diagram.
Fig. 5 is the utility model output filter circuit schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Fig. 1,2 and 5, a kind of online integrated switch mode constant current charger of the utility model, comprises Industrial Frequency Transformer, rectification and filter circuit, constant current charge power circuit, constant current charge control circuit and output filter circuit.AC220 volt exchanges exports to integral bridge type rectifier D1, through the direct voltage V of electric capacity C1 filtering stable output after D1 rectification after online Industrial Frequency Transformer T1 transformation
iN, direct voltage V
iNexport to constant current charge power circuit, constant current charge power circuit controls to export constant current to output filter circuit by constant current charge control circuit, then forms Constant Direct Current through output filter circuit filtering and exports; Output filter circuit is made up of voltage stabilizing didoe D4 and filter capacitor C3, C4 parallel connection.
As shown in Figure 3, described online integrated switch mode constant current charger, its constant current charge power circuit is made up of switch chopper, photoelectrical coupler, sampling resistor and peripheral circuit, and its circuit connecting relation is: direct voltage V
iNthe IN end of access switch chopper IC1, the SG end of switch chopper IC1 connects-Vout end, secondary 4 pin of VADJ termination photoelectrical coupler IC2-A of switch chopper IC1 and the intermediate point of resistance R* and R1 of series connection, the OUT terminating diode D2 negative electrode of switch chopper IC1 and inductance L 30 one end, diode D2 plus earth; Secondary 6 pin of the positive pole of another terminating diode of inductance L 30 D1 anode, electric capacity C2 and C3, diode D3 negative electrode, the resistance R* other end, electric capacity C4 and C5 positive pole, photoelectrical coupler IC2-A, then forward series diode D4 is connected to+Vout, and diode D1 negative electrode meets direct voltage V
iN; Series resistor Rs between GND end and-Vout hold; Electric capacity C2, C3 and C5 negative pole, diode D3 anode, another termination of resistance R1-Vout, and be connected with tie point R; Switch chopper IC1 is L4960, and photoelectrical coupler IC2 is TIL117.
As shown in Figure 4, described online integrated switch mode constant current charger, its constant current charge control circuit is made up of three terminal regulator, operational amplifier, photoelectrical coupler and peripheral circuit, and its circuit connecting relation is: direct voltage V
iNconnect 1 pin of three terminal regulator IC4, the 2 pin ground connection of three terminal regulator IC4,3 pin connecting resistance R31 one end, operational amplifier IC3 power anode and electric capacity C32 positive pole, electric capacity C32 minus earth; Operational amplifier IC3 in-phase end is connected with tie point R by resistance R32, and end of oppisite phase is connected on the resistance R31 other end, and resistance R3* is serially connected between operational amplifier IC3 end of oppisite phase and GND; Operational amplifier IC3 negative terminal of powering meets GND, operational amplifier IC3 output is connected with elementary 1 pin of photoelectrical coupler IC2-B with inductance L 31 by series resistance R33, elementary 2 pin of photoelectrical coupler IC2-B meet GND, and electric capacity C31 forward is connected in parallel between elementary 1 pin of photoelectrical coupler IC2-B and 2 pin; Three terminal regulator IC4 is LM7806, and operational amplifier IC3 is LM358N.
The utility model is not limited to above-mentioned preferred forms, anyone other any or akin products identical with the utility model drawn under enlightenment of the present utility model, all drops within protection range of the present utility model.
Claims (3)
1. an online integrated switch mode constant current charger, comprises Industrial Frequency Transformer, rectification and filter circuit, constant current charge power circuit, constant current charge control circuit and output filter circuit; It is characterized in that: AC220 volt exchanges exports to integral bridge type rectifier D1, through the direct voltage V of electric capacity C1 filtering stable output after D1 rectification after online Industrial Frequency Transformer T1 transformation
iN, direct voltage V
iNexport to constant current charge power circuit, constant current charge power circuit controls to export constant current to output filter circuit by constant current charge control circuit, then forms Constant Direct Current through output filter circuit filtering and exports; Output filter circuit is made up of voltage stabilizing didoe D4 and filter capacitor C3, C4 parallel connection.
2. online integrated switch mode constant current charger according to claim 1, it is characterized in that: constant current charge power circuit is made up of switch chopper, photoelectrical coupler, sampling resistor and peripheral circuit, its circuit connecting relation is: direct voltage V
iNthe IN end of access switch chopper IC1, the SG end of switch chopper IC1 connects-Vout end, secondary 4 pin of VADJ termination photoelectrical coupler IC2-A of switch chopper IC1 and the intermediate point of resistance R* and R1 of series connection, the OUT terminating diode D2 negative electrode of switch chopper IC1 and inductance L 30 one end, diode D2 plus earth; Secondary 6 pin of the positive pole of another terminating diode of inductance L 30 D1 anode, electric capacity C2 and C3, diode D3 negative electrode, the resistance R* other end, electric capacity C4 and C5 positive pole, photoelectrical coupler IC2-A, then forward series diode D4 is connected to+Vout, and diode D1 negative electrode meets direct voltage V
iN; Series resistor Rs between GND end and-Vout hold; Electric capacity C2, C3 and C5 negative pole, diode D3 anode, another termination of resistance R1-Vout, and be connected with tie point R; Switch chopper IC1 is L4960, and photoelectrical coupler IC2 is TIL117.
3. online integrated switch mode constant current charger according to claim 1, it is characterized in that: constant current charge control circuit is made up of three terminal regulator, operational amplifier, photoelectrical coupler and peripheral circuit, its circuit connecting relation is: direct voltage V
iNconnect 1 pin of three terminal regulator IC4, the 2 pin ground connection of three terminal regulator IC4,3 pin connecting resistance R31 one end, operational amplifier IC3 power anode and electric capacity C32 positive pole, electric capacity C32 minus earth; Operational amplifier IC3 in-phase end is connected with tie point R by resistance R32, and end of oppisite phase is connected on the resistance R31 other end, and resistance R3* is serially connected between operational amplifier IC3 end of oppisite phase and GND; Operational amplifier IC3 negative terminal of powering meets GND, operational amplifier IC3 output is connected with elementary 1 pin of photoelectrical coupler IC2-B with inductance L 31 by series resistance R33, elementary 2 pin of photoelectrical coupler IC2-B meet GND, and electric capacity C31 forward is connected in parallel between elementary 1 pin of photoelectrical coupler IC2-B and 2 pin; Three terminal regulator IC4 is LM7806, and operational amplifier IC3 is LM358N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681054.4U CN204103577U (en) | 2014-11-14 | 2014-11-14 | Online integrated switch mode constant current charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681054.4U CN204103577U (en) | 2014-11-14 | 2014-11-14 | Online integrated switch mode constant current charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103577U true CN204103577U (en) | 2015-01-14 |
Family
ID=52271978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420681054.4U Active CN204103577U (en) | 2014-11-14 | 2014-11-14 | Online integrated switch mode constant current charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204103577U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753155A (en) * | 2014-11-14 | 2015-07-01 | 航天长峰朝阳电源有限公司 | Online type integrated switching type constant-current charging device |
| CN106104964A (en) * | 2015-02-10 | 2016-11-09 | 存点有限公司 | For the high power charging device that energy storing device is charged |
| CN108039758A (en) * | 2017-12-29 | 2018-05-15 | 重庆希诺达通信有限公司 | A kind of charging system of high power density |
-
2014
- 2014-11-14 CN CN201420681054.4U patent/CN204103577U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753155A (en) * | 2014-11-14 | 2015-07-01 | 航天长峰朝阳电源有限公司 | Online type integrated switching type constant-current charging device |
| CN104753155B (en) * | 2014-11-14 | 2017-11-03 | 航天长峰朝阳电源有限公司 | Online integrated switch mode constant current charger |
| CN106104964A (en) * | 2015-02-10 | 2016-11-09 | 存点有限公司 | For the high power charging device that energy storing device is charged |
| CN108039758A (en) * | 2017-12-29 | 2018-05-15 | 重庆希诺达通信有限公司 | A kind of charging system of high power density |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203387219U (en) | Electronic cigarette high-efficiency charging device | |
| CN103199600B (en) | Charge control circuit and charge control method | |
| CN202333882U (en) | Direct-current power supply having redundant backup function | |
| CN105245020A (en) | Power supply source for 3G wireless network video monitoring device | |
| CN201985596U (en) | Wireless charging system for electric automobile | |
| CN204103577U (en) | Online integrated switch mode constant current charger | |
| CN109270337A (en) | Passive and wireless current sensor based on double-winding current mutual inductor | |
| CN103532394A (en) | Continuously adjustable intelligent power module | |
| CN204156616U (en) | For the self-induction power-supply circuit of intelligent grid sensing device | |
| CN102545580A (en) | In-system programming universal PFC multifunctional processor | |
| CN102647004A (en) | High-efficiency charge and discharge control circuit and control method thereof | |
| CN204349856U (en) | For the electric power system of transmission line monitoring terminal | |
| CN202004507U (en) | Wireless charging system and interference suppresser circuit for electric vehicle | |
| CN203180773U (en) | Passive intelligent power distribution apparatus | |
| CN206237137U (en) | Reactive compensation system based on automatic network-building technology | |
| CN202737505U (en) | Boost charging circuit of storage battery | |
| CN206332617U (en) | A kind of intelligent amendment wave voltage change-over circuit based on PFC flyback full-bridges | |
| CN202617007U (en) | Frequency modulation control circuit realized by using UC3846 chip | |
| CN202957639U (en) | High-efficiency charging and discharging control circuit | |
| CN205336139U (en) | Adopt intelligence to transfer widely and technological power supply of frequency modulation | |
| CN105743198B (en) | It is a kind of based on Bradycardia punching can on-line debugging formula charging circuit | |
| CN214227917U (en) | A high-power intelligent charging ware for fork truck | |
| CN204215302U (en) | Online integrated high precision constant current source | |
| CN104753155A (en) | Online type integrated switching type constant-current charging device | |
| CN204347123U (en) | For reducing the thunderbolt sense terminals that the transmission line of electricity of tripping rate with lightning strike is transformed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |