CN102157976B - Battery charging circuit of electric bicycle capable of identifying voltage - Google Patents
Battery charging circuit of electric bicycle capable of identifying voltage Download PDFInfo
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- CN102157976B CN102157976B CN 201110107393 CN201110107393A CN102157976B CN 102157976 B CN102157976 B CN 102157976B CN 201110107393 CN201110107393 CN 201110107393 CN 201110107393 A CN201110107393 A CN 201110107393A CN 102157976 B CN102157976 B CN 102157976B
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- electric bicycle
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Abstract
The invention relates to a battery charging circuit of an electric bicycle capable of identifying voltage, which comprises a leakage protector, wherein the battery charging circuit is characterized in that the leakage protector is connected to an inlet wire of a power supply and is subsequently connected to a capacitor through a fuse; the capacitor and another inlet wire of the power supply are connected to a rectifier bridge; an output end of the rectifier bridge is connected to a capacitor for filtering in parallel and is connected to two voltage-regulator diodes in parallel, so as to form an auxiliary power supply for outputting a direct current of 12 V; an output end of the auxiliary power supply is connected to four divider resistors in parallel and are respectively used for taking the voltage values of the detection circuits of 40 V, 42 V and 53 V; and a core part of a comparison circuit is composed of two voltage comparators. The battery charging circuit of an electric bicycle capable of identifying voltage provided by the invention has the advantages that the rated battery voltage value of the electric bicycle charged can be automatically detected, the voltage value of the rechargeable battery charged completely can be adjusted according to the rated value, the purpose for automatically charging the batteries of all the qualified market electric bicycles can be achieved, the circuit can be automatically removed after charging full, and the practical value of the circuit is good.
Description
Technical field
The present invention relates to a kind of electric bicycle battery charging circuit that can identify voltage, can give current all listings qualified battery of electric bicycle charging.
Background technology
Electric bicycle has been widely used in our daily life, the storage battery that car uses has 36V and 48V, to be each producer designed for battery and the voltage of different model its charger, there is no versatility, and charger for electric bicycle is all to adopt Switching Power Supply at present, components and parts use many, the circuit complexity, and reliability is not high.
Summary of the invention
Given this, the invention provides a kind of electric bicycle battery charging circuit that can identify voltage, can give current all listings qualified battery of electric bicycle charging.
The present invention relates to a kind of electric bicycle battery charging circuit that can identify voltage, comprise earth leakage protective device, fuse, electric capacity, rectifier bridge, testing circuit, comparison circuit, control circuit and auxiliary power circuit, it is characterized in that: described earth leakage protective device and external communication 220V power supply wherein an inlet wire are parallel with the electric capacity of discharge resistance again through the overcurrent fuse access after being connected, another inlet wire of electric capacity and power supply is connected to the rectifier bridge input, rectification bridge output end is connected with the storage battery of charging with ammeter through the normally opened contact of relay K, the storage battery two ends also connect the testing circuit in series by resistance, the fuse rear end is got the 220V AC power and is connect electric capacity and rectifier bridge formation auxiliary power circuit, a rectification bridge output end filtering electric capacity in parallel, two voltage stabilizing didoes in parallel again, form the accessory power supply of output direct current 12V, at auxiliary power output end four divider resistances in parallel, take out respectively corresponding to testing circuit 40V, 42V, the magnitude of voltage of 53V, two voltage comparators form the core of comparison circuit, the input of comparator respectively connects the output that latter two negative input end of a resistance is connected in parallel to testing circuit, the positive input terminal of first comparator through a relay connect auxiliary power circuit corresponding to testing circuit 40V, the magnitude of voltage of 53V, the magnitude of voltage corresponding to testing circuit 42V of auxiliary power circuit connects the positive input terminal of second comparator, the output of two comparators connects the base stage of two NPN triodes through resistance, the triode that first comparator connects the coil of collector connecting relay K, the collector connecting relay K of the triode that second comparator connects
inspectioncoil, two relay coils connect the 12V positive source, the equal ground connection of the emitter of two triodes, comparator is also by the 12V Power supply.The present invention can detect the battery load voltage value of charged electric bicycle automatically, and be full of rear magnitude of voltage according to this rated value adjustment rechargeable battery, reach the qualified battery of electric bicycle automatic charging of all above formulas, and excision automatically after battery is full of, simultaneously, circuit structure of the present invention is simple, and device used is few, has practical value preferably.
The accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present invention.
Fig. 2 is the circuit diagram of the invention process example.
Embodiment
Fig. 1 is the theory diagram that circuit forms, in conjunction with Fig. 2 specific embodiment circuit diagram, analyzed, comprise earth leakage protective device Q1, fuse RD, capacitor C 1, rectifier bridge, testing circuit, comparison circuit, control circuit and auxiliary power circuit, it is characterized in that: described earth leakage protective device Q1 be parallel with again the capacitor C 1 of discharge resistance R1 after external communication 220V power supply is connected through overcurrent fuse RD access, electric capacity is connected to the rectifier bridge input, rectification bridge output end is connected with the storage battery of charging with ammeter through the normally opened contact of relay K, the storage battery two ends also connect by resistance (R2/R3/R4) testing circuit in series, above part forms main charging circuit.Fuse RD gets rear end the 220V AC power and connects capacitor C 2 and rectifier bridge formation auxiliary power circuit, a rectification bridge output end filtering electric capacity C3 in parallel, two voltage stabilizing didoes in parallel again, form the accessory power supply of output direct current 12V, at auxiliary power output end four divider resistances (R5/R6/R7/R8) in parallel, by choosing suitable resistance, can take out respectively the magnitude of voltage corresponding to testing circuit 40V, 42V, 53V.Two voltage comparator U1A/U2A form the core of comparison circuit, after the input termination R10/R12 resistance of two comparators, negative input end is connected in parallel to the output of testing circuit, the U1A positive input terminal connects the voltage of auxiliary power circuit corresponding to testing circuit 40V, 53V through resistance R 9 relay K, auxiliary power circuit connects the positive input terminal of U2A corresponding to the magnitude of voltage of testing circuit 42V through resistance R 11, the output of two comparators connects the base stage of NPN triode T1/T2 through resistance R 13/14, the coil of T1 collector connecting relay K, T2 collector connecting relay K
inspectioncoil, two relay coils connect the 12V positive source, the equal ground connection of the transmitter of two triodes, comparator is by the 12V Power supply.In circuit, capacitor C 1/C2 selects the ac capacitor that withstand voltage is higher; size by capacitance value capable of regulating maximum charging current; because circuit is not applied isolating transformer and is carried out electrical isolation, for circuit energy trouble free service, therefore access earth leakage protective device in circuit.
At present the electric bike battery of listing has two types of 36V and 48V, the 36V storage battery is full of rear terminal voltage can not surpass 42V, can be lower than 42V and the battery discharging of 48V is minimum, charge and the highlyest can not surpass 53V, therefore the selected 42V of circuit is the critical voltage point, the storage battery kind accessed for judgement.During higher than 42V, mean that the storage battery of access is 48V when detected value, U1A is output as height, the K action, and U2A is output as low, K
inspectionbe failure to actuate, be given as 53V, storage battery is charged, and after battery is recharged 53V, U1A is output as low, and K is disconnected, stops charging.When detecting voltage lower than 42V, mean that the storage battery of access is 36V, U1A is output as height, the K action, U2A is output as height, K
inspectionaction, be given as 40V, and storage battery is charged, and after battery is recharged 40V, U1A is output as low, and K is disconnected, stops charging.When detected value, during at 40<detected value<42, the expression storage battery is 36V, and now electric weight is more sufficient, K
inspectionlogical, K is obstructed, can not work the mischief.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (6)
1. the electric bicycle battery charging circuit that can identify voltage, comprise earth leakage protective device, fuse, capacitor C 1, C2, rectifier bridge, testing circuit, comparison circuit, control circuit and auxiliary power circuit, it is characterized in that: described earth leakage protective device and external communication 220V power supply wherein an inlet wire are parallel with the capacitor C 1 of discharge resistance R1 again through the overcurrent fuse access after being connected, capacitor C 1 and another inlet wire of external communication 220V power supply are connected to the first rectifier bridge input, the first rectification bridge output end successively through the normally opened contact of relay K with after ammeter with the charging storage battery be connected, the storage battery two ends also connect the testing circuit in series by resistance, described fuse front end connects a wherein inlet wire of described external communication 220V power supply through earth leakage protective device, rear end is connected with an end of capacitor C 2, the input that the other end of capacitor C 2 and another inlet wire of external communication 220V power supply are connected to the second rectifier bridge forms auxiliary power circuit, the second rectification bridge output end filtering electric capacity C3 in parallel, two voltage stabilizing didoes in parallel again, form the accessory power supply of output direct current 12V, at auxiliary power output end four divider resistances in parallel, take out respectively the magnitude of voltage corresponding to testing circuit 40V, 42V, 53V, two voltage comparators form the core of comparison circuit, after each input of two voltage comparators respectively connects a resistance, two negative input ends are connected in parallel to the output of testing circuit, and the positive input terminal of first voltage comparator is through relay K
inspectionconnect the magnitude of voltage corresponding to testing circuit 40V, 53V of auxiliary power circuit, the magnitude of voltage corresponding to testing circuit 42V of auxiliary power circuit connects the positive input terminal of second voltage comparator, the output of two voltage comparators connects the base stage of two NPN triodes through resistance, the coil of the collector connecting relay K of the triode that first voltage comparator connects, the collector connecting relay K of the triode that second voltage comparator connects
inspectioncoil, two relay coils connect the 12V positive source, the equal ground connection of the emitter of two triodes, two voltage comparators are also by the 12V Power supply, this electric bicycle battery charging circuit is regulated the charging set-point according to the accumulator voltage detected value, can meet the charging requirement of the electric bike battery of different model.
2. the electric bicycle battery charging circuit that can identify voltage according to claim 1 is characterized in that: the capacitor C 1 that external communication 220V power supply connects is ac capacitor, and its size is chosen according to the capacity of storage battery, 1 discharge process of resistance R.
3. the electric bicycle battery charging circuit that can identify voltage according to claim 2, it is characterized in that: the capacity of described ac capacitor comprises 24 μ F.
4. the electric bicycle battery charging circuit that can identify voltage according to claim 1 is characterized in that: comparison circuit forms 4 resistance, 2 voltage comparators, K
inspectioncontact; Auxiliary power circuit forms 1 ac capacitor, 1 rectifier bridge, 1 filter capacitor, 2 voltage-stabiliser tubes, 4 divider resistances; Control circuit forms 2 resistance, 2 NPN triodes, 2 relays.
5. the electric bicycle battery charging circuit that can identify voltage according to claim 1, it is characterized in that: described voltage comparator is selected the comparator chip of All-in-One.
6. the electric bicycle battery charging circuit that can identify voltage according to claim 5, it is characterized in that: this comparator chip comprises LM393.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107393 CN102157976B (en) | 2011-04-28 | 2011-04-28 | Battery charging circuit of electric bicycle capable of identifying voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107393 CN102157976B (en) | 2011-04-28 | 2011-04-28 | Battery charging circuit of electric bicycle capable of identifying voltage |
Publications (2)
| Publication Number | Publication Date |
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| CN102157976A CN102157976A (en) | 2011-08-17 |
| CN102157976B true CN102157976B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110107393 Expired - Fee Related CN102157976B (en) | 2011-04-28 | 2011-04-28 | Battery charging circuit of electric bicycle capable of identifying voltage |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941094B (en) * | 2014-01-16 | 2017-02-15 | 深圳市金宏威技术股份有限公司 | Internal-resistance acquisition device for valve-regulated lead acid storage batteries |
| JP2016052182A (en) * | 2014-08-29 | 2016-04-11 | ヤマハ発動機株式会社 | Charger |
| CN107482951A (en) * | 2017-07-31 | 2017-12-15 | 陕西科技大学 | A kind of portable piezoelectric ceramics TRT of bicycle and its system |
| CN107918044A (en) * | 2017-12-28 | 2018-04-17 | 优利德科技(中国)有限公司 | A kind of universal meter current measurement overheat detecting and early warning device and method for early warning |
| CN109274286A (en) * | 2018-09-30 | 2019-01-25 | 广东亿鼎新能源汽车有限公司 | Applied to the vehicle-mounted two-way inversion system on pure electric automobile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2420773Y (en) * | 2000-05-19 | 2001-02-21 | 魏锡秦 | Intelligent charger |
| CN201113529Y (en) * | 2007-09-13 | 2008-09-10 | 王为灿 | Charge up circuit |
| TW201102289A (en) * | 2009-07-07 | 2011-01-16 | Univ Nan Kai Technology | Solar energy charging system for charging double voltage of an electric bicycle and recycling electric energy |
| CN201541143U (en) * | 2009-09-28 | 2010-08-04 | 柴军锋 | Charging current self-adaptive storage battery charger |
| CN101777783A (en) * | 2010-03-16 | 2010-07-14 | 南京工程学院 | 24V, 36V and 48V share charger without distinguishing anode and cathode for electric bicycle |
| CN202059206U (en) * | 2011-04-28 | 2011-11-30 | 福建农林大学 | An electric bicycle battery charging circuit capable of identifying voltages |
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