CN104184199B - Cell charging circuit and device - Google Patents
Cell charging circuit and device Download PDFInfo
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- CN104184199B CN104184199B CN201310193939.XA CN201310193939A CN104184199B CN 104184199 B CN104184199 B CN 104184199B CN 201310193939 A CN201310193939 A CN 201310193939A CN 104184199 B CN104184199 B CN 104184199B
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Abstract
The invention belongs to the circuit field, and provides a cell charging circuit and device. According to the cell charging circuit and device, a positive cell group can be charged through a positive cell group charging module during the positive half period of an alternating current, and a negative cell group can be charged through a negative cell group charging module during the negative half period of the alternating current, so that the periodical change characteristics of current direction of the alternating current are effectively utilized; the cell can be charged within the positive and negative half periods, so that electric energy is effectively utilized, energy sources are saved; and the cell charging circuit is formed only by the positive cell group charging module and the negative cell group charging module, so that the structure is simple and the cost is saved.
Description
Technical field
The invention belongs to circuit field, more particularly, to a kind of battery charger and device.
Background technology
Energy-conserving and environment-protective are the main flows of world today's industry development, and rechargeable battery has not only been saved the energy and also effectively controlled
Environmental pollution.
However, in prior art, rechargeable battery being charged is all to carry out under alternating current conditions, and alternating current is electric
Stream direction be periodically variable that is to say, that charging circuit of the prior art be all alternating current positive half period to electricity
Pond is charged, and negative half-cycle does not carry out effectively utilizes, is so unfavorable for energy-conserving and environment-protective, even and if by changing circuit
All battery is charged to realize alternating current positive half period and negative half-cycle, circuit structure also can be very complicated, is unfavorable for saving
Cost.
Content of the invention
The invention provides a kind of battery charger is unable to effectively utilizes exchange it is intended to solve existing battery charger
Electric negative half-cycle is charged to battery and circuit structure is complicated, is unfavorable for energy-conserving and environment-protective and cost-effective problem.
In order to solve above-mentioned technical problem, the present invention is realized in：A kind of battery charger, with transformer secondary output
Connect, described battery charger includes：
Positive battery group charging module, is connected with transformator, is filled for aligning set of cells in alternating current positive half period
Electricity；
Negative battery group charging module, is connected with transformator, for filling to negative battery group in alternating current negative half-cycle
Electricity.
Further, described positive battery group charging module includes：
Diode D1, light emitting diode D2, stabilivolt D3, resistance R1, resistance R2, resistance R3, resistance R4, first switch
Pipe, second switch pipe；
The anode of described diode D1 is connected with the first end of described transformer secondary output, and the negative electrode of described diode D1 is respectively
Be connected with the first end of described resistance R1 and the first end of described resistance R2, second end of described resistance R2 respectively with described resistance
The anode connection of the first end of R3 and described light emitting diode D2, second end of described resistance R3 and described light emitting diode D2's
Negative electrode is connected with the cold end of described first switch pipe respectively, the control end of described first switch pipe and described second switch pipe
Hot end connect, described resistance R4 be connected to second end of described resistance R1 and described second switch pipe control end it
Between, the negative electrode of described stabilivolt D3 is connected with second end of described resistance R1, the anode of described stabilivolt D3 and described negative battery
Group charging module connects, the cold end of the hot end of described first switch pipe and described second switch pipe respectively with positive battery
The positive pole of group connects, and the negative pole of described positive battery group is connected with the second end of described transformer secondary output.
Further, described negative battery group charging module includes：
Diode D4, light emitting diode D5, stabilivolt D6, resistance R5, resistance R6, resistance R7, resistance R8, the 3rd switch
Pipe, the 4th switching tube；
The negative electrode of described diode D4 is connected with the first end of described transformer secondary output, and the anode of described diode D4 is respectively
It is connected with the negative electrode of the first end, the first end of described resistance R7 and described light emitting diode D5 of described resistance R5, described resistance
Second end of R5 is connected with the anode of described stabilivolt D6, the negative electrode first end with described resistance R8 respectively of described stabilivolt D6
Connect with the anode of described stabilivolt D3, second end of described resistance R8 is connected with the control end of described 3rd switching tube, described
The hot end of the 3rd switching tube is connected with the control end of described 4th switching tube, the cold end of described 4th switching tube and institute
The second end stating resistance R7 connects, and described resistance R6 is connected to second end of described resistance R7 and the sun of described light emitting diode D5
Between pole, the cold end of described 3rd switching tube and the hot end negative pole with negative battery group respectively of described 4th switching tube
Connect, the positive pole of described negative battery group is connected with the second end of described transformer secondary output.
Further, described first switch pipe adopts PNP type triode Q1, and the base stage of described PNP type triode Q1 is the
The control end of one switching tube, the hot end of the current collection extremely first switch pipe of described PNP type triode Q1, described positive-negative-positive three
The cold end of the transmitting of pole pipe Q1 extremely first switch pipe；
Described second switch pipe adopts NPN type triode Q2, and the base stage of described NPN type triode Q2 is second switch pipe
Control end, the hot end of the current collection extremely second switch pipe of described NPN type triode Q2, described NPN type triode Q2 send out
Emitter-base bandgap grading is the cold end of second switch pipe.
Further, described 3rd switching tube adopts PNP type triode Q3, and the base stage of described PNP type triode Q3 is the
The control end of three switching tubes, the hot end of current collection the extremely the 3rd switching tube of described PNP type triode Q3, described positive-negative-positive three
The cold end of the transmitting of pole pipe Q3 the extremely the 3rd switching tube；
Described 4th switching tube adopts NPN type triode Q4, and the base stage of described NPN type triode Q4 is the 4th switching tube
Control end, the hot end of current collection the extremely the 4th switching tube of described NPN type triode Q4, described NPN type triode Q4 send out
Emitter-base bandgap grading is the cold end of the 4th switching tube.
Further, described first switch pipe adopts p-type metal-oxide-semiconductor Q5, and the grid of described p-type metal-oxide-semiconductor Q5 is first switch
The control end of pipe, the drain electrode of described p-type metal-oxide-semiconductor Q5 is the hot end of first switch pipe, and the source electrode of described p-type metal-oxide-semiconductor Q5 is
The cold end of first switch pipe；
Described second switch pipe adopts N-type metal-oxide-semiconductor Q6, and the grid of described N-type metal-oxide-semiconductor Q6 is the control of second switch pipe
End, the drain electrode of described N-type metal-oxide-semiconductor Q6 is the hot end of second switch pipe, and the source electrode of described N-type metal-oxide-semiconductor Q6 is second switch
The cold end of pipe.
Further, described 3rd switching tube adopts p-type metal-oxide-semiconductor Q7, and the grid of described p-type metal-oxide-semiconductor Q7 is the 3rd switch
The control end of pipe, the drain electrode of described p-type metal-oxide-semiconductor Q7 is the hot end of the 3rd switching tube, and the source electrode of described p-type metal-oxide-semiconductor Q7 is
The cold end of the 3rd switching tube；
Described 4th switching tube adopts N-type metal-oxide-semiconductor Q8, and the grid of described N-type metal-oxide-semiconductor Q8 is the control of the 4th switching tube
End, the drain electrode of described N-type metal-oxide-semiconductor Q8 is the hot end of the 4th switching tube, and the source electrode of described N-type metal-oxide-semiconductor Q8 is the 4th switch
The cold end of pipe.
Present invention also offers a kind of battery charger, described battery charger includes above-mentioned battery charger.
In the present invention, positive battery group charging module can be passed through in alternating current positive half period to charge to positive battery group,
Pass through negative battery group charging module to charge to negative battery group in alternating current negative half-cycle, be effectively utilized AC current direction
Periodically variable feature, can be charged to battery in positive and negative half period, be effectively utilized electric energy, save energy
Source, and battery charger is only made up of positive battery group charging module and negative battery group charging module, structure is simple, saves into
This.
Brief description
Fig. 1 is the function structure chart of battery charger provided in an embodiment of the present invention；
Fig. 2 is the circuit structure of positive battery group charging module provided in an embodiment of the present invention and negative battery group charging module
Figure；
Fig. 3 is the circuit structure diagram of the battery charger that first embodiment of the invention provides；
Fig. 4 is the circuit structure diagram of the battery charger that second embodiment of the invention provides.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Below in conjunction with specific embodiment, implementing of the present invention is described in detail：
Fig. 1 shows the modular structure of battery charger provided in an embodiment of the present invention, for convenience of description, only enumerates
Part related to the present embodiment.
As shown in figure 1, battery charger is connected with the secondary of transformator T1, including：
Positive battery group charging module 101, is connected with transformator T1, for aligning set of cells in alternating current positive half period
BT1 is charged；
Negative battery group charging module 102, is connected with transformator T1, for entering to negative battery group in alternating current negative half-cycle
Row charges.
Fig. 2 shows the circuit knot of positive battery group charging module provided in an embodiment of the present invention and negative battery group charging module
Structure.
As one embodiment of the invention, positive battery group charging module 101 includes：
Diode D1, light emitting diode D2, stabilivolt D3, resistance R1, resistance R2, resistance R3, resistance R4, first switch pipe
1011st, second switch pipe 1012；
The anode of diode D1 is connected with the first end of the secondary of transformator T1, the negative electrode of diode D1 respectively with resistance R1
First end and resistance R2 first end connect, the second end first end and light emitting diode D2 with resistance R3 respectively of resistance R2
Anode connect, second end of resistance R3 and the negative electrode of light emitting diode D2 are respectively with the cold end of first switch pipe 1011 even
Connect, the control end of first switch pipe 1011 is connected with the hot end of second switch pipe 1012, resistance R4 is connected to resistance R1's
Between the control end of the second end and second switch pipe 1012, the negative electrode of stabilivolt D3 is connected with second end of resistance R1, stabilivolt
The anode of D3 is connected with negative battery group charging module 102, the hot end of first switch pipe 1011 and second switch pipe 1012
Cold end is connected with the positive pole of positive battery group BT1 respectively, the second end of the secondary of the negative pole of positive battery group BT1 and transformator T1
Connect.
As one embodiment of the invention, negative battery group charging module 102 includes：
Diode D4, light emitting diode D5, stabilivolt D6, resistance R5, resistance R6, resistance R7, resistance R8, the 3rd switching tube
1021st, the 4th switching tube 1022；
The negative electrode of diode D4 is connected with the first end of the secondary of transformator T1, the anode of diode D4 respectively with resistance R5
The negative electrode of first end, the first end of resistance R7 and light emitting diode D5 connect, second end of resistance R5 and the sun of stabilivolt D6
Pole connects, and the negative electrode of stabilivolt D6 is connected with the first end of resistance R8 and the anode of stabilivolt D3 respectively, second end of resistance R8
It is connected with the control end of the 3rd switching tube 1021, the hot end of the 3rd switching tube 1021 and the control end of the 4th switching tube 1022
Connect, the cold end of the 4th switching tube 1022 is connected with second end of resistance R7, and resistance R6 is connected to second end of resistance R7
And the anode of light emitting diode D5 between, the cold end of the 3rd switching tube 1021 and the hot end of the 4th switching tube 1022 divide
It is not connected with the negative pole of negative battery group BT2, the positive pole of negative battery group BT2 is connected with the second end of the secondary of transformator T1.
Embodiment one：
Fig. 3 shows the circuit structure of the battery charger that first embodiment of the invention provides, for convenience of description, only
Enumerate the part related to first embodiment.
As one embodiment of the invention, first switch pipe 1011 adopts PNP type triode Q1, the base of PNP type triode Q1
The control end of extremely first switch pipe 1011, the hot end of the current collection extremely first switch pipe 1011 of PNP type triode Q1,
The cold end of the transmitting of PNP type triode Q1 extremely first switch pipe 1011；
Second switch pipe 1012 adopts NPN type triode Q2, and the base stage of NPN type triode Q2 is second switch pipe 1012
Control end, the hot end of the current collection extremely second switch pipe 1012 of NPN type triode Q2, the emitter stage of NPN type triode Q2
Cold end for second switch pipe 1012.
As one embodiment of the invention, the 3rd switching tube 1021 adopts PNP type triode Q3, the base of PNP type triode Q3
The control end of the extremely the 3rd switching tube 1021, the hot end of current collection the extremely the 3rd switching tube 1021 of PNP type triode Q3,
The cold end of the transmitting of PNP type triode Q3 the extremely the 3rd switching tube 1021；
4th switching tube 1022 adopts NPN type triode Q4, and the base stage of NPN type triode Q4 is the 4th switching tube 1022
Control end, the hot end of current collection the extremely the 4th switching tube 1022 of NPN type triode Q4, the emitter stage of NPN type triode Q4
Cold end for the 4th switching tube 1022.
Based on first embodiment, the operation principle of the battery charger that the present invention provides is illustrated below.
Battery charger is divided into positive battery group charging module and negative battery group charging module, and circuit is symmetrical.Transformation
Device T1 primary connects city's alternating current, secondary same output AC electricity, its positive half period and negative half-cycle be respectively positive battery group BT1 and
Negative battery group BT2 charges.After diode D1 rectification, through resistance R1, stabilivolt D3 exports a peak pulse to positive half period on a road
As reference voltage；Another road electric current charges to positive battery group BT1 through resistance R3, PNP type triode Q1.NPN type triode Q2,
PNP type triode Q1 forms composite pipe circuit, and reference voltage is connected in the base stage of NPN type triode Q2 by resistance R4.When just
Set of cells BT1 has been discharged and the base potential of NPN type triode Q2 is higher than transmitting electrode potential during non-full charge, forms positive bias.
PNP type triode Q1 and NPN type triode Q2 saturation conduction.When there being charging current, the pressure drop of resistance R3 makes light emitting diode
D2 lights.
When charging current reaches the meansigma methodss of pulse current, then the peak value of pulse current may be up to more than 3 times of meansigma methodss.
With the rising of the cell voltage of positive battery group BT1, PNP type triode Q1 and NPN type triode Q2 exit saturation and enter
Magnification region, charging current reduces, when the cell voltage of positive battery group BT1 is close to the voltage of stabilivolt D3.PNP type triode
, close to cut-off, the charging current of positive battery group BT1 is reduced to trickle charge, until positive battery group BT1 for Q1 and NPN type triode Q2
Cell voltage be completely filled with till.
Due to negative battery group charging module 102 and positive battery fill the electric module 101 of group circuit structure identical, just with friendship
The negative half-cycle of stream electricity is charged, and its operation principle is identical, and here is with regard to no longer carrying out stating explanation.
Embodiment two：
Fig. 4 shows the circuit structure of the battery charger that second embodiment of the invention provides, for convenience of description, only
Enumerate the part related to second embodiment.
As one embodiment of the invention, first switch pipe 1011 adopts p-type metal-oxide-semiconductor Q5, and the grid of p-type metal-oxide-semiconductor Q5 is the
The control end of one switching tube 1011, the drain electrode of p-type metal-oxide-semiconductor Q5 is the hot end of first switch pipe 1011, p-type metal-oxide-semiconductor Q5's
Source electrode is the cold end of first switch pipe 1011；
Second switch pipe 1012 adopts N-type metal-oxide-semiconductor Q6, and the grid of N-type metal-oxide-semiconductor Q6 is the control of second switch pipe 1012
End, the drain electrode of N-type metal-oxide-semiconductor Q6 is the hot end of second switch pipe 1012, and the source electrode of N-type metal-oxide-semiconductor Q6 is second switch pipe
1012 cold end.
As one embodiment of the invention, the 3rd switching tube 1021 adopts p-type metal-oxide-semiconductor Q7, and the grid of p-type metal-oxide-semiconductor Q7 is the
The control end of three switching tubes 1021, the drain electrode of p-type metal-oxide-semiconductor Q7 is the hot end of the 3rd switching tube 1021, p-type metal-oxide-semiconductor Q7's
Source electrode is the cold end of the 3rd switching tube 1021；
4th switching tube 1022 adopts N-type metal-oxide-semiconductor Q8, and the grid of N-type metal-oxide-semiconductor Q8 is the control of the 4th switching tube 1022
End, the drain electrode of N-type metal-oxide-semiconductor Q8 is the hot end of the 4th switching tube 1022, and the source electrode of N-type metal-oxide-semiconductor Q8 is the 4th switching tube
1022 cold end.
In first embodiment of the invention and second embodiment, first switch pipe and the 3rd switching tube can use positive-negative-positive
Audion or p-type metal-oxide-semiconductor, second switch pipe and the 4th switching tube can use NPN type triode and N-type metal-oxide-semiconductor, open for this four
Guan Guanke is used with combined hybrid.
The embodiment of the present invention additionally provides a kind of battery charger, and battery charger includes above-mentioned battery charging electricity
Road.
In embodiments of the present invention, positive battery group charging module can be passed through in alternating current positive half period to positive battery group
Charge, pass through negative battery group charging module in alternating current negative half-cycle and charge to negative battery group, be effectively utilized alternating current electricity
The periodically variable feature in stream direction, can be charged to battery in positive and negative half period, be effectively utilized electric energy, save
The energy, and battery charger is only made up of positive battery group charging module and negative battery group charging module, structure is simple, saves
Cost.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of battery charger, is connected with transformer secondary output it is characterised in that described battery charger includes：
Positive battery group charging module, is connected with transformator, is charged for aligning set of cells in alternating current positive half period；
Negative battery group charging module, is connected with transformator, for being charged to negative battery group in alternating current negative half-cycle；
Described positive battery group charging module includes：
Diode D1, light emitting diode D2, stabilivolt D3, resistance R1, resistance R2, resistance R3, resistance R4, first switch pipe,
Two switching tubes；
The anode of described diode D1 is connected with the first end of described transformer secondary output, the negative electrode of described diode D1 respectively with institute
The first end of the first end and described resistance R2 of stating resistance R1 connects, and second end of described resistance R2 is respectively with described resistance R3's
The anode of first end and described light emitting diode D2 connects, the negative electrode of second end of described resistance R3 and described light emitting diode D2
It is connected with the cold end of described first switch pipe respectively, the height of the control end of described first switch pipe and described second switch pipe
Potential end connects, and described resistance R4 is connected between second end of described resistance R1 and the control end of described second switch pipe, institute
The negative electrode stating stabilivolt D3 is connected with second end of described resistance R1, and the anode of described stabilivolt D3 is charged with described negative battery group
Module connects, and the cold end of the hot end of described first switch pipe and described second switch pipe is respectively with positive battery group just
Pole connects, and the negative pole of described positive battery group is connected with the second end of described transformer secondary output；
The primary of described transformator connects city's alternating current, the secondary output AC electricity of described transformator, the positive half cycle of described alternating current
Phase and negative half-cycle are respectively described positive battery group and the charging of described negative battery group, the electric current warp of the positive half period of described alternating current
After described diode D1 rectification, a road exports a peak pulse as reference voltage through described resistance R1 and described stabilivolt D3；
Charge to described positive battery group through described resistance R3 and described first switch pipe in another road；Described second switch pipe and described first
Switching tube forms composite pipe circuit, and described reference voltage is connected on the control end of described second switch pipe by described resistance R4, when
The electricity that described positive battery group has been discharged and the current potential of the control end of described second switch pipe is higher than its cold end during non-full charge
Position, now, described first switch pipe and and the conducting of described second switch pipe, when there being charging current, the pressure drop of described resistance R3
Described light emitting diode D2 is made to light；With the rising of the cell voltage of described positive battery group, described first switch pipe and described
Second switch pipe enters magnification region, and charging current reduces, when the cell voltage of described positive battery group is close to described stabilivolt D3
Voltage when, close to cut-off state, the charging current of described positive battery group subtracts for described first switch pipe and described second switch pipe
Little to trickle charge, till the cell voltage of described positive battery group is completely filled with.
2. battery charger as claimed in claim 1 is it is characterised in that described negative battery group charging module includes：
Diode D4, light emitting diode D5, stabilivolt D6, resistance R5, resistance R6, resistance R7, resistance R8, the 3rd switching tube,
Four switching tubes；
The negative electrode of described diode D4 is connected with the first end of described transformer secondary output, the anode of described diode D4 respectively with institute
The negative electrode stating the first end, the first end of described resistance R7 and described light emitting diode D5 of resistance R5 connects, described resistance R5's
Second end is connected with the anode of described stabilivolt D6, negative electrode first end and the institute with described resistance R8 respectively of described stabilivolt D6
The anode stating stabilivolt D3 connects, and second end of described resistance R8 is connected with the control end of described 3rd switching tube, and the described 3rd
The hot end of switching tube is connected with the control end of described 4th switching tube, the cold end of described 4th switching tube and described electricity
Second end of resistance R7 connects, described resistance R6 be connected to second end of described resistance R7 and described light emitting diode D5 anode it
Between, the cold end of described 3rd switching tube and the hot end of described 4th switching tube are respectively with the negative pole of negative battery group even
Connect, the positive pole of described negative battery group is connected with the second end of described transformer secondary output.
3. battery charger as claimed in claim 1 is it is characterised in that described first switch pipe adopts PNP type triode
Q1, the base stage of described PNP type triode Q1 is the control end of first switch pipe, the current collection of described PNP type triode Q1 extremely the
The hot end of one switching tube, the cold end of the transmitting extremely first switch pipe of described PNP type triode Q1；
Described second switch pipe adopts NPN type triode Q2, and the base stage of described NPN type triode Q2 is the control of second switch pipe
End, the hot end of the current collection extremely second switch pipe of described NPN type triode Q2, the emitter stage of described NPN type triode Q2
Cold end for second switch pipe.
4. battery charger as claimed in claim 2 is it is characterised in that described 3rd switching tube adopts PNP type triode
Q3, the base stage of described PNP type triode Q3 is the control end of the 3rd switching tube, the current collection extremely of described PNP type triode Q3
The hot end of three switching tubes, the cold end of transmitting the extremely the 3rd switching tube of described PNP type triode Q3；
Described 4th switching tube adopts NPN type triode Q4, and the base stage of described NPN type triode Q4 is the control of the 4th switching tube
End, the hot end of current collection the extremely the 4th switching tube of described NPN type triode Q4, the emitter stage of described NPN type triode Q4
Cold end for the 4th switching tube.
5. battery charger as claimed in claim 1 it is characterised in that described first switch pipe adopt p-type metal-oxide-semiconductor Q5,
The grid of described p-type metal-oxide-semiconductor Q5 is the control end of first switch pipe, and the drain electrode of described p-type metal-oxide-semiconductor Q5 is the height of first switch pipe
Potential end, the source electrode of described p-type metal-oxide-semiconductor Q5 is the cold end of first switch pipe；
Described second switch pipe adopts N-type metal-oxide-semiconductor Q6, and the grid of described N-type metal-oxide-semiconductor Q6 is the control end of second switch pipe, institute
The drain electrode stating N-type metal-oxide-semiconductor Q6 is the hot end of second switch pipe, and the source electrode of described N-type metal-oxide-semiconductor Q6 is the low of second switch pipe
Potential end.
6. battery charger as claimed in claim 2 it is characterised in that described 3rd switching tube adopt p-type metal-oxide-semiconductor Q7,
The grid of described p-type metal-oxide-semiconductor Q7 is the control end of the 3rd switching tube, and the drain electrode of described p-type metal-oxide-semiconductor Q7 is the height of the 3rd switching tube
Potential end, the source electrode of described p-type metal-oxide-semiconductor Q7 is the cold end of the 3rd switching tube；
Described 4th switching tube adopts N-type metal-oxide-semiconductor Q8, and the grid of described N-type metal-oxide-semiconductor Q8 is the control end of the 4th switching tube, institute
State the hot end for the 4th switching tube for the drain electrode of N-type metal-oxide-semiconductor Q8, the source electrode of described N-type metal-oxide-semiconductor Q8 is the low of the 4th switching tube
Potential end.
7. a kind of battery charger is it is characterised in that described battery charger is included as claim 1 to 6 any one
Described battery charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193939.XA CN104184199B (en) | 2013-05-22 | 2013-05-22 | Cell charging circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193939.XA CN104184199B (en) | 2013-05-22 | 2013-05-22 | Cell charging circuit and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104184199A CN104184199A (en) | 2014-12-03 |
| CN104184199B true CN104184199B (en) | 2017-02-08 |
Family
ID=51965033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310193939.XA Active CN104184199B (en) | 2013-05-22 | 2013-05-22 | Cell charging circuit and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104184199B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042252U (en) * | 1988-08-27 | 1989-08-02 | 北京市农机研究所 | Dual-output electric charger |
| CN201032688Y (en) * | 2006-11-01 | 2008-03-05 | 周海 | Positive and negative pulse charger |
| CN102810897A (en) * | 2011-05-30 | 2012-12-05 | 海洋王照明科技股份有限公司 | Charging circuit with short-circuit protection and charger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6184657B1 (en) * | 1999-08-13 | 2001-02-06 | S-B Power Tool Company | Battery charger having current increasing circuit |
-
2013
- 2013-05-22 CN CN201310193939.XA patent/CN104184199B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042252U (en) * | 1988-08-27 | 1989-08-02 | 北京市农机研究所 | Dual-output electric charger |
| CN201032688Y (en) * | 2006-11-01 | 2008-03-05 | 周海 | Positive and negative pulse charger |
| CN102810897A (en) * | 2011-05-30 | 2012-12-05 | 海洋王照明科技股份有限公司 | Charging circuit with short-circuit protection and charger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104184199A (en) | 2014-12-03 |
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