CN101604859A - Battery charger - Google Patents
Battery charger Download PDFInfo
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- CN101604859A CN101604859A CNA2008103021409A CN200810302140A CN101604859A CN 101604859 A CN101604859 A CN 101604859A CN A2008103021409 A CNA2008103021409 A CN A2008103021409A CN 200810302140 A CN200810302140 A CN 200810302140A CN 101604859 A CN101604859 A CN 101604859A
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Abstract
A kind of battery charger, comprise a power circuit, described power circuit comprises a transformer, one first permanent magnet, one second permanent magnet and a switching circuit, the two ends that described first permanent magnet, second permanent magnet are individually fixed in described transformer are used to produce a fixed magnetic field, and the primary coil of described transformer and secondary coil can connect into parallel form or series connection form by described switching circuit; One rectification circuit links to each other with described power circuit; And a constant-current constant-voltage circuit, link to each other with described rectification circuit, and link to each other with a pond to be charged; When the primary coil of described transformer and secondary coil connected into the series connection form by described switching circuit, it was described pond to be charged charging that hand described transformer makes it rotate to produce an alternating current in described fixed magnetic field.
Description
Technical field
The present invention relates to a kind of charging circuit, particularly a kind of is the battery charger of the battery charge of miniaturized electronics.
Background technology
At present, miniaturized electronics such as mobile phone, the charging of digital camera etc. generally all is that battery is taken out and puts into charger and charge, perhaps direct charging inlet with miniaturized electronics links to each other with power supply by charger and charges, no matter adopt which kind of mode to charge, employed power supply is the AC power of 220V, therefore, can not in time find power supply to come the customer group of emergent charging for those, for example travel outside and the travel staff, can not be instant fill mobile phone or digital camera with electricity, will bring many inconvenience with extraneous communication with to the use of miniaturized electronics to them.
Summary of the invention
In view of above content, being necessary to provide a kind of is the battery charger of the battery charge of miniaturized electronics not having under the situation of AC power.
A kind of battery charger, comprise a power circuit, described power circuit comprises a transformer, one first permanent magnet, one second permanent magnet and a switching circuit, the two ends that described first permanent magnet, second permanent magnet are individually fixed in described transformer are used to produce a fixed magnetic field, and the primary coil of described transformer and secondary coil can connect into parallel form or series connection form by described switching circuit; One rectification circuit, its input links to each other with the output of described power circuit; And a constant-current constant-voltage circuit, its input links to each other with the output of described rectification circuit, and the output of described constant-current constant-voltage circuit is used for linking to each other with a pond to be charged; When the primary coil of described transformer and secondary coil connect into parallel form by described switching circuit, the two ends of the primary coil of described transformer are used for connecing an AC power as the input of described power circuit, the two ends of the secondary coil of described transformer are as the described rectification circuit of output termination of described power circuit, described AC power is through described power circuit transformation, enter described constant-current constant-voltage circuit after the described rectification circuit rectification, described constant-current constant-voltage circuit provides constant current charge or constant voltage charge for described pond to be charged; When the primary coil of described transformer when linking to each other with described rectification circuit again after secondary coil connects into the series connection form by described switching circuit, hand described transformer rotates it and produces an alternating current with cutting magnetic line in described fixed magnetic field, described alternating current is through described power circuit transformation, enter described constant-current constant-voltage circuit after the described rectification circuit rectification, described constant-current constant-voltage circuit provides constant current charge or constant voltage charge for described pond to be charged.
Described battery feed circuit provides charging voltage for pond to be charged charging or hand transformer produce alternating current in magnetic field for pond to be charged by adding a 220V AC power, can use different charging modes according to the needs under user's different situations, bring very big facility to the user.
Description of drawings
Below in conjunction with accompanying drawing and better embodiment the present invention is described in further detail:
Fig. 1 is the circuit diagram of the better embodiment of battery charger of the present invention.
Embodiment
Please refer to Fig. 1, the better embodiment of battery charger of the present invention comprises a power circuit 200, a rectification circuit 300 and a constant-current constant-voltage circuit 400.Described rectification circuit 300 is connected between described power circuit 200 and the constant-current constant-voltage circuit 400, and described constant-current constant-voltage circuit 400 is used for connecing a pond to be charged.The battery that described battery charger can be miniaturized electronics provides alternating current power supply charging and two kinds of patterns of hand charging, and the middle-size and small-size electronic equipment of this better embodiment is example with the mobile phone.Described alternating current power supply charging pattern links to each other to come for battery of mobile phone charge power supply is provided for adding AC power 100 and described power circuit 200 by one; Described hand charge mode is a charging mobile phone battery for giving birth to alternating current by hand coil at magnetic field transfer movable property.In this better embodiment, when providing charge power supply as battery of mobile phone when using described alternating current power supply charging pattern, described AC power 100 adopts civil power 220V AC power.
Described power circuit 200 comprises a transformer T, two permanent magnets 22 and 24, two single-pole double-throw switch (SPDT) K1 and K2 and four brush B1 ~ B4, the arctic N of described permanent magnet 22 is fixed on the end of described transformer T, the South Pole S of described permanent magnet 24 is fixed on the other end of described transformer T, is used to produce a fixed magnetic field.One end of the primary coil of described transformer T can meet the live wire end L of described AC power 100 by described brush B1, and meet the second contact c1 of described single-pole double-throw switch (SPDT) K1, its other end can meet the zero line side Z of described AC power by brush B2, and meets the control end a2 of described single-pole double-throw switch (SPDT) K2; One end of the secondary coil of described transformer T connects described rectification circuit 300 by described brush B3, and its other end meets the control end a1 of described single-pole double-throw switch (SPDT) K1 by described brush B4; The first contact b1 of described single-pole double-throw switch (SPDT) K1 connects described rectification circuit 300, and the first contact b2 of described single-pole double-throw switch (SPDT) K2 is unsettled, and its second contact c2 meets the first contact b1 of described single-pole double-throw switch (SPDT) K1.
Described rectification circuit 300 comprises a bridge rectifier U and a capacitor C 1, and first power end 1 of described bridge rectifier U connects an end of the secondary coil of described transformer T by described brush B3; Its second source end 2 meets the first contact b1 of described single-pole double-throw switch (SPDT) K1; Its positive voltage output end 3 connects an end of capacitor C 1, and connects described constant-current constant-voltage circuit 400; One negative voltage output 4 connects the other end of described capacitor C 1, and ground connection.
Described constant-current constant-voltage circuit 400 comprises a three-terminal voltage regulator LM1, two resistance R 1 and R2, two adjustable resistance R P1 and RP2, one thyristor Q1, an one diode D1 and a capacitor C 2, the voltage input end Vin of described three-terminal voltage regulator LM1 connects the positive voltage output end 3 of described bridge rectifier U, its voltage output end Vout connects the anode of described diode D1 by described resistance R 1, the negative electrode of described diode D1 can be taken over the anodal B+ of machine battery, the adjustable end Adj of described three-terminal voltage regulator LM1 connects the anode of described thyristor Q1 by adjustable resistance RP1, and by described capacitor C 2 ground connection, also connect the end of described adjustable resistance RP2 and the anode of diode D1 simultaneously by described resistance R 2, the negative electrode of described thyristor Q1 connects ground connection behind the other end of described adjustable resistance RP2, and can be used to connect the negative pole B-of described battery of mobile phone, the adjustable end of the described adjustable resistance RP2 of adjustable termination of described thyristor Q1.
When the user uses the alternating current power supply charging pattern, use the transformation function of described transformer T, the arctic N of described permanent magnet 22,24 and South Pole S are fixed on described transformer T two ends, are used to produce a fixed magnetic field.This moment, described transformer T was motionless in described fixed magnetic field, did not produce extra alternating current.The control end a1 of described single-pole double-throw switch (SPDT) K1 is linked to each other with its first contact b1, the control end a2 of described single-pole double-throw switch (SPDT) K2 links to each other with its first contact b2, make primary coil and the parallel connection of secondary windings of described transformer T, the voltage that described AC power 100 provides carries out step-down through described transformer T, and the voltage that obtains after the step-down is offered described rectification circuit 300 carry out halfwave rectifier, the rectification after-current becomes direct current by interchange, enters described constant-current constant-voltage circuit 400 again.In described constant-current constant-voltage circuit 400, when just beginning to charge, because the voltage of described battery of mobile phone is lower, the voltage of the anode of described thyristor Q1 can not make described thyristor Q1 conducting, described three-terminal voltage regulator LM1 connects into the constant current charge form, charging requirement for the battery of mobile phone that satisfies different model, can be suitable resistance value by selecting described resistance R 1, determine the current value of constant current charge, this moment described constant-current constant-voltage circuit 400 constant current is provided is described charging mobile phone battery; After charging a period of time, the voltage of described battery of mobile phone rises to certain certain value, the voltage of the anode of described thyristor Q1 makes described thyristor Q1 conducting, the adjustable end Adj of described three-terminal voltage regulator LM1 is by described adjustable resistance RP1 and thyristor Q1 ground connection, described three-terminal voltage regulator LM1 connects into the constant voltage charge form, charging requirement for the battery of mobile phone that satisfies different model, the resistance value of the described adjustable resistance RP1 of scalable, determine the magnitude of voltage of constant voltage charge, the resistance value of regulating described adjustable resistance RP2 simultaneously makes constant voltage charge voltage not be higher than the rated voltage of battery of mobile phone in order to avoid cause and overcharge the infringement battery of mobile phone, shorten the useful life of battery of mobile phone, this moment described constant-current constant-voltage circuit 400 constant voltage is provided is cell-phone charging.
When the user used hand charge mode, described power circuit 200 was equivalent to hand generator, and described transformer T is as the rotating coil of hand generator, and two permanent magnets 22,24 that are fixed on the two ends of described transformer T are equivalent to two stators of generator.The control end a1 of described single-pole double-throw switch (SPDT) K1 is linked to each other with its second contact c1, the control end a2 of described single-pole double-throw switch (SPDT) K2 links to each other with its second contact c2, primary coil and the secondary coil of described transformer T are together in series, can increase the coil turn that described transformer T1 rotates in magnetic field, farthest increase energy output.The rocking handle figure that rotates as the described transformer T of the hand control of user does not show) time, the coil of rotation cutting magnetic line in magnetic field produces alternating current.Described alternating current provides charging voltage through described rectification circuit 300 and constant-current constant-voltage circuit 400 backs for battery of mobile phone.The operation principle of described constant-current constant-voltage circuit 400 does not repeat them here as described in the above-mentioned power source charges pattern.
Described battery feed circuit provides charging voltage for pond to be charged charging or hand transformer T produce alternating current in magnetic field for pond to be charged by adding AC power 100, can use different charging modes according to the needs under user's different situations, bring very big facility to the user.
Claims (5)
1. battery charger comprises:
One power circuit, described power circuit comprises a transformer, one first permanent magnet, one second permanent magnet and a switching circuit, the two ends that described first permanent magnet, second permanent magnet are individually fixed in described transformer are used to produce a fixed magnetic field, and the primary coil of described transformer and secondary coil can connect into parallel form or series connection form by described switching circuit;
One rectification circuit, its input links to each other with the output of described power circuit; And
One constant-current constant-voltage circuit, its input links to each other with the output of described rectification circuit, and the output of described constant-current constant-voltage circuit is used for linking to each other with a pond to be charged;
When the primary coil of described transformer and secondary coil connect into parallel form by described switching circuit, the two ends of the primary coil of described transformer are used for connecing an AC power as the input of described power circuit, the two ends of the secondary coil of described transformer are as the described rectification circuit of output termination of described power circuit, described AC power is through described power circuit transformation, enter described constant-current constant-voltage circuit after the described rectification circuit rectification, described constant-current constant-voltage circuit provides constant current charge or constant voltage charge for described pond to be charged;
When the primary coil of described transformer when linking to each other with described rectification circuit again after secondary coil connects into the series connection form by described switching circuit, hand described transformer rotates it and produces an alternating current with cutting magnetic line in described fixed magnetic field, described alternating current is through described power circuit transformation, enter described constant-current constant-voltage circuit after the described rectification circuit rectification, described constant-current constant-voltage circuit provides constant current charge or constant voltage charge for described pond to be charged.
2. battery charger as claimed in claim 1, it is characterized in that: described switching circuit comprises one first single-pole double-throw switch (SPDT) and one second single-pole double-throw switch (SPDT), and described first single-pole double-throw switch (SPDT), second single-pole double-throw switch (SPDT) include a control end, one first contact and one second contact; The control end of described first single-pole double-throw switch (SPDT) connects an end of the secondary coil of described transformer by one first brush, its first contact is connected to described rectification circuit, the other end of the secondary coil of described transformer is connected to described rectification circuit by one second brush, and second contact of described first single-pole double-throw switch (SPDT) connects an end of the primary coil of described transformer by a third brush; The control end of described second single-pole double-throw switch (SPDT) connects the other end of the primary coil of described transformer by one the 4th brush, and its first contact is unsettled, and its second contact connects first contact of described first single-pole double throw.
3. battery charger as claimed in claim 1, it is characterized in that: described rectification circuit comprises a bridge rectifier, described bridge rectifier comprises one first power end, a second source end, a positive voltage output end and a negative voltage output, one end of the secondary coil of the described transformer of the first power supply termination of described bridge rectifier, switching circuit in the described power circuit of its second source termination, its positive voltage output end connects described constant-current constant-voltage circuit, and link to each other its negative voltage output head grounding with its negative voltage output by an electric capacity.
4. battery charger as claimed in claim 1, it is characterized in that: described constant-current constant-voltage circuit comprises a three-terminal voltage regulator, one first resistance, one second resistance, one first adjustable resistance, one second adjustable resistance and a thyristor, described three-terminal voltage regulator comprises a voltage input end, one voltage output end and an adjustable end, its voltage input end connects described rectification circuit, its voltage output end connects the positive pole in described pond to be charged by described first resistance, its adjustable end connects the anode of described thyristor by described first adjustable resistance, and connects an end of described second adjustable resistance by described second resistance; The negative electrode of described thyristor connects the other end and the ground connection of second adjustable resistance, is used for connecing the negative pole in described pond to be charged, the adjustable end of described second adjustable resistance of adjustable termination of described thyristor.
5. battery charger as claimed in claim 4, it is characterized in that: described constant-current constant-voltage circuit also comprises a diode and an electric capacity, the anode of described diode connects the voltage output end of described three-terminal voltage regulator by described first resistance, and its negative electrode is used for connecing the positive pole in described pond to be charged; The adjustable end of the described three-terminal voltage regulator of one termination of described electric capacity, its other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103021409A CN101604859B (en) | 2008-06-13 | 2008-06-13 | Charging circuit of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103021409A CN101604859B (en) | 2008-06-13 | 2008-06-13 | Charging circuit of battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101604859A true CN101604859A (en) | 2009-12-16 |
| CN101604859B CN101604859B (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103021409A Expired - Fee Related CN101604859B (en) | 2008-06-13 | 2008-06-13 | Charging circuit of battery |
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| Country | Link |
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| CN (1) | CN101604859B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223084A (en) * | 2011-06-16 | 2011-10-19 | 湖北网安科技有限公司 | Alternating-current constant-current source circuit |
| CN102647017A (en) * | 2012-04-30 | 2012-08-22 | 张芝仁 | Wind energy charger of battery vehicle |
| CN104426220A (en) * | 2013-08-31 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Voltage regulation circuit |
| CN112928934A (en) * | 2019-12-05 | 2021-06-08 | 上海健苑苑电子科技有限公司 | High-frequency high-voltage power supply management system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3820000A (en) * | 1973-07-11 | 1974-06-25 | Mc Cullough Corp | Method and transformer/motor for charging batteries |
| US6184657B1 (en) * | 1999-08-13 | 2001-02-06 | S-B Power Tool Company | Battery charger having current increasing circuit |
| CN2741204Y (en) * | 2004-10-09 | 2005-11-16 | 王善福 | Two-purpose battery charger of AC power supply and hand-driven generator |
-
2008
- 2008-06-13 CN CN2008103021409A patent/CN101604859B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223084A (en) * | 2011-06-16 | 2011-10-19 | 湖北网安科技有限公司 | Alternating-current constant-current source circuit |
| CN102223084B (en) * | 2011-06-16 | 2012-11-07 | 湖北网安科技有限公司 | Alternating-current constant-current source circuit |
| CN102647017A (en) * | 2012-04-30 | 2012-08-22 | 张芝仁 | Wind energy charger of battery vehicle |
| CN102647017B (en) * | 2012-04-30 | 2015-05-27 | 张芝仁 | Wind energy charger of battery vehicle |
| CN104426220A (en) * | 2013-08-31 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Voltage regulation circuit |
| CN104426220B (en) * | 2013-08-31 | 2019-04-16 | 深圳市海洋王照明工程有限公司 | A kind of regulating circuit |
| CN112928934A (en) * | 2019-12-05 | 2021-06-08 | 上海健苑苑电子科技有限公司 | High-frequency high-voltage power supply management system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101604859B (en) | 2011-11-30 |
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Granted publication date: 20111130 Termination date: 20120613 |