CN104079048A - Charging circuit - Google Patents
Charging circuit Download PDFInfo
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- CN104079048A CN104079048A CN201310103774.2A CN201310103774A CN104079048A CN 104079048 A CN104079048 A CN 104079048A CN 201310103774 A CN201310103774 A CN 201310103774A CN 104079048 A CN104079048 A CN 104079048A
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Abstract
The embodiment of the invention discloses a charging circuit which comprises a voltage-converting module and a circuit switching module, wherein the voltage-converting module is used for converting an alternating-current voltage into a charging voltage of a charging battery; the circuit switching module comprises a first circuit and a second circuit, when the anode of the charging battery is connected to a first charging end and the cathode is connected to a second charging end, the first circuit is switched on and the second circuit is cut off, and when the anode of the charging battery is connected to the second charging end and the cathode is connected to the first charging end, the first circuit is cut off and the second circuit is switched on. With the adoption of the charging circuit, the charging battery can be randomly connected forwardly or reversely so as to achieve non-polarity charging, the safety of the charging circuit and the charging battery is improved, and the charging circuit is convenient to use.
Description
Technical field
The present invention relates to electronic applications, relate in particular to a kind of charging circuit.
Background technology
At present in the output of a lot of charging circuits, anodal and negative pole are distinguishing, only have and are connected when the positive pole of rechargeable battery and the positive terminal of charging circuit, and the negative pole of rechargeable battery is connected with the negative pole end of charging circuit and could charges normally.If reversal connection may cause the damage of charging circuit or rechargeable battery, bring loss to user, in use, also there is inconvenience.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of charging circuit is provided.Can just connect arbitrarily or reversal connection rechargeable battery, realize nonpolarity charging, improve the fail safe of charging circuit and rechargeable battery, easy to use.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of charging circuit, comprising:
Voltage changing module, for converting alternating current voltage to charging voltage the output of rechargeable battery;
Circuit switching module, comprises the first circuit and the second circuit, when the positive pole of described rechargeable battery connects the first charging end, and when negative pole connects the second charging end, described the first line conduction, described the second circuit cut-off; When the positive pole of described rechargeable battery connects described the second charging end, when negative pole connects described the first charging end, described the first circuit cut-off, described the second line conduction.
Wherein, described voltage changing module comprises transformer, and the primary coil of described transformer connects the both positive and negative polarity of alternating current, and secondary coil connects described circuit switching module.
Wherein, described the first circuit comprises the first diode, the second diode and the first controllable silicon, the positive pole of described the first diode connects the first end of described secondary coil, negative pole connects described the first charging end, the positive pole of described the second diode connects the common node of described the first diode cathode and described the first charging end, negative pole connects the described first silicon controlled control utmost point, and described the first silicon controlled anode connects described the second charging end, and negative pole connects the second end of described secondary coil.
Wherein, described the first circuit also comprises the first current-limiting resistor voltage divider, and described first current-limiting resistor voltage divider one end is connected with the positive pole of described the second diode, and the other end is connected with described the second charging end.
Wherein, described the second circuit comprises the 3rd diode, the 4th diode and the second controllable silicon, the positive pole of described the 3rd diode connects the second end of described secondary coil, negative pole connects described the second charging end, described the 3rd diode cathode of positive pole of described the 4th diode and the common node of described the second charging end, negative pole connects the described second silicon controlled control utmost point, and described the second silicon controlled anode connects described the first charging end, and negative pole connects the first end of described secondary coil.
Wherein, described the second circuit also comprises the second current-limiting resistor voltage divider, and described second current-limiting resistor voltage divider one end is connected with the positive pole of described the 4th diode, and the other end is connected with described the first charging end.
Wherein, described the first controllable silicon and the second controllable silicon are one-way SCR.
Implement the embodiment of the present invention, there is following beneficial effect:
Can be according to rechargeable battery by voltage changing module need to export suitable charging voltage, and the polarity wrong that circuit switching module prevents rechargeable battery is set causes charging circuit or rechargeable battery to damage, therefore rechargeable battery can just connect or reversal connection arbitrarily, realize nonpolarity charging, improve the fail safe of charging circuit and rechargeable battery, easy to use; Coordinate and carry out circuit switching by diode and silicon controlled, whole charging circuit simple in structure, with low cost, stable performance.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the connection diagram of the first embodiment of charging circuit of the present invention;
Fig. 2 is the circuit diagram of the second embodiment of charging circuit of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, is the connection diagram of the first embodiment of charging circuit of the present invention, and in the present embodiment, described circuit comprises: voltage changing module 1, circuit switching module 2.
Described voltage changing module 1 is for converting alternating current voltage to charging voltage the output of rechargeable battery;
Described circuit switching module 2 comprises the first circuit and the second circuit, when the positive pole of described rechargeable battery connects the first charging end, and when negative pole connects the second charging end, described the first line conduction, described the second circuit cut-off; When the positive pole of described rechargeable battery connects described the second charging end, when negative pole connects described the first charging end, described the first circuit cut-off, described the second line conduction.
Can be according to rechargeable battery by voltage changing module need to export suitable charging voltage, and the polarity wrong that circuit switching module prevents rechargeable battery is set causes charging circuit or rechargeable battery to damage, therefore rechargeable battery can just connect or reversal connection arbitrarily, realize nonpolarity charging, improve the fail safe of charging circuit and rechargeable battery, easy to use.
Please refer to Fig. 2, is the circuit diagram of the second embodiment of charging circuit of the present invention, and in the present embodiment, described circuit comprises: voltage changing module, circuit switching module.
Described voltage changing module comprises transformer T1, and the primary coil of described transformer T1 connects the both positive and negative polarity of alternating current, and secondary coil connects described circuit switching module.Described voltage changing module is for converting alternating current voltage to charging voltage the output of rechargeable battery BT1;
Described circuit switching module comprises the first circuit and the second circuit, when the positive pole of described rechargeable battery BT1 meets the first charging end A, and when negative pole meets the second charging end B, described the first line conduction, described the second circuit cut-off; When the positive pole of described rechargeable battery BT1 meets described the second charging end B, when negative pole meets described the first charging end A, described the first circuit cut-off, described the second line conduction.
Preferably, described the first circuit comprises the first diode D1, the second diode D4 and the first controllable silicon SCR 1, the positive pole of described the first diode D1 connects the first end of described secondary coil, negative pole meets described the first charging end A, the positive pole of described the second diode D4 connects the common node of described the first diode D1 negative pole and described the first charging end A, negative pole connects the control utmost point of described the first controllable silicon SCR 1, the anode of described the first controllable silicon SCR 1 meets described the second charging end B, and negative pole connects the second end of described secondary coil.
More preferably, described the first circuit also comprises the first current-limiting resistor voltage divider R2, and described first current-limiting resistor voltage divider R2 one end is connected with the positive pole of described the second diode D4, and the other end is connected with described the second charging end B.
More preferably, described the second circuit comprises the 3rd diode D2, the 4th diode D3 and the second controllable silicon SCR 2, the positive pole of described the 3rd diode D2 connects the second end of described secondary coil, negative pole meets described the second charging end B, described the 3rd diode D2 negative pole of positive pole of described the 4th diode D3 and the common node of described the second charging end B, negative pole connects the control utmost point of described the second controllable silicon SCR 2, the anode of described the second controllable silicon SCR 2 meets described the first charging end A, and negative pole connects the first end of described secondary coil.
Described the second circuit also comprises the second current-limiting resistor voltage divider R1, and described second current-limiting resistor voltage divider R1 one end is connected with the positive pole of described the 4th diode D3, and the other end is connected with described the first charging end A.
Described the first controllable silicon SCR 1 and the second controllable silicon SCR 2 are one-way SCR.
Particularly, this charging circuit has the function of the automatic reverse of polarity.In the time that rechargeable battery BT1 positive pole meets the first charging end A, negative pole and meets the second charging end B, because the negative pole end of rechargeable battery BT1 is low-voltage, can not make the first controllable silicon SCR 1 conducting, now, positive pole by rechargeable battery BT1 makes the first controllable silicon SCR 1 conducting through the first current-limiting resistor voltage divider R2, the second diode D4, and the charging current of circuit output is charged to rechargeable battery BT1 is anodal through the first diode D1; The negative pole of rechargeable battery BT1 is connected to the second end of the secondary coil of transformer T1 through the first controllable silicon SCR 1, form charge circuit, gives rechargeable battery BT1 charging.
In the time that the positive pole of rechargeable battery BT1 meets the second charging end B, negative pole and meets the first charging end A, the positive pole of rechargeable battery BT1 makes the second controllable silicon SCR 2 conductings through the second current-limiting resistor voltage divider R1, the 3rd triode, and the charging current of circuit output is charged to rechargeable battery BT1 is anodal through the second diode D4; The negative pole of rechargeable battery BT1 is connected to the first end of the secondary coil of transformer T1 through the second controllable silicon SCR 2, form charge circuit, gives rechargeable battery BT1 charging.No matter so rechargeable battery BT1 is just connecing or reversal connection can realize and charging normal, can not damage rechargeable battery BT1.
Coordinate and carry out circuit switching by diode and silicon controlled, whole charging circuit simple in structure, with low cost, stable performance, easy to use.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
By the description of above-described embodiment, the present invention has the following advantages:
Can be according to rechargeable battery by voltage changing module need to export suitable charging voltage, and the polarity wrong that circuit switching module prevents rechargeable battery is set causes charging circuit or rechargeable battery to damage, therefore rechargeable battery can just connect or reversal connection arbitrarily, realize nonpolarity charging, improve the fail safe of charging circuit and rechargeable battery, easy to use; Coordinate and carry out circuit switching by diode and silicon controlled, whole charging circuit simple in structure, with low cost, stable performance.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory is called for short ROM) or random store-memory body (Random Access Memory is called for short RAM) etc.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (7)
1. a charging circuit, is characterized in that, comprising:
Voltage changing module, for converting alternating current voltage to charging voltage the output of rechargeable battery;
Circuit switching module, comprises the first circuit and the second circuit, when the positive pole of described rechargeable battery connects the first charging end, and when negative pole connects the second charging end, described the first line conduction, described the second circuit cut-off; When the positive pole of described rechargeable battery connects described the second charging end, when negative pole connects described the first charging end, described the first circuit cut-off, described the second line conduction.
2. circuit as claimed in claim 1, is characterized in that, described voltage changing module comprises transformer, and the primary coil of described transformer connects the both positive and negative polarity of alternating current, and secondary coil connects described circuit switching module.
3. circuit as claimed in claim 2, it is characterized in that, described the first circuit comprises the first diode, the second diode and the first controllable silicon, the positive pole of described the first diode connects the first end of described secondary coil, negative pole connects described the first charging end, the positive pole of described the second diode connects the common node of described the first diode cathode and described the first charging end, negative pole connects the described first silicon controlled control utmost point, described the first silicon controlled anode connects described the second charging end, and negative pole connects the second end of described secondary coil.
4. circuit as claimed in claim 3, is characterized in that, described the first circuit also comprises the first current-limiting resistor voltage divider, and described first current-limiting resistor voltage divider one end is connected with the positive pole of described the second diode, and the other end is connected with described the second charging end.
5. circuit as claimed in claim 4, it is characterized in that, described the second circuit comprises the 3rd diode, the 4th diode and the second controllable silicon, the positive pole of described the 3rd diode connects the second end of described secondary coil, negative pole connects described the second charging end, described the 3rd diode cathode of positive pole of described the 4th diode and the common node of described the second charging end, negative pole connects the described second silicon controlled control utmost point, described the second silicon controlled anode connects described the first charging end, and negative pole connects the first end of described secondary coil.
6. circuit as claimed in claim 5, is characterized in that, described the second circuit also comprises the second current-limiting resistor voltage divider, and described second current-limiting resistor voltage divider one end is connected with the positive pole of described the 4th diode, and the other end is connected with described the first charging end.
7. circuit as claimed in claim 6, is characterized in that, described the first controllable silicon and the second controllable silicon are one-way SCR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103774.2A CN104079048B (en) | 2013-03-28 | 2013-03-28 | Charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103774.2A CN104079048B (en) | 2013-03-28 | 2013-03-28 | Charging circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104079048A true CN104079048A (en) | 2014-10-01 |
| CN104079048B CN104079048B (en) | 2017-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310103774.2A Active CN104079048B (en) | 2013-03-28 | 2013-03-28 | Charging circuit |
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| Country | Link |
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| CN (1) | CN104079048B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836311A (en) * | 2015-06-08 | 2015-08-12 | 厦门新声科技有限公司 | Non-polarized charging method |
| CN104852429A (en) * | 2015-04-30 | 2015-08-19 | 成都迈奥信息技术有限公司 | Smart watch charging base integrated with music playing function |
| CN104852428A (en) * | 2015-04-30 | 2015-08-19 | 成都迈奥信息技术有限公司 | Smart watch charging base integrated with lighting function |
| CN104852443A (en) * | 2015-04-30 | 2015-08-19 | 成都迈奥信息技术有限公司 | Smart watch charging base integrated with router |
| WO2023045376A1 (en) * | 2021-09-23 | 2023-03-30 | 深圳市吉迩科技有限公司 | Charging base, electronic cigarette, and charging method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2862469Y (en) * | 2005-10-10 | 2007-01-24 | 惠州市德赛能源科技有限公司 | Battery reverse-install prevention circuit for battery charger |
| CN201966651U (en) * | 2011-02-23 | 2011-09-07 | 深圳市博驰信电子有限责任公司 | Battery charger control device with automatic recognition function |
| CN202260556U (en) * | 2011-10-18 | 2012-05-30 | 马庭权 | Multifunctional charger |
-
2013
- 2013-03-28 CN CN201310103774.2A patent/CN104079048B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2862469Y (en) * | 2005-10-10 | 2007-01-24 | 惠州市德赛能源科技有限公司 | Battery reverse-install prevention circuit for battery charger |
| CN201966651U (en) * | 2011-02-23 | 2011-09-07 | 深圳市博驰信电子有限责任公司 | Battery charger control device with automatic recognition function |
| CN202260556U (en) * | 2011-10-18 | 2012-05-30 | 马庭权 | Multifunctional charger |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852429A (en) * | 2015-04-30 | 2015-08-19 | 成都迈奥信息技术有限公司 | Smart watch charging base integrated with music playing function |
| CN104852428A (en) * | 2015-04-30 | 2015-08-19 | 成都迈奥信息技术有限公司 | Smart watch charging base integrated with lighting function |
| CN104852443A (en) * | 2015-04-30 | 2015-08-19 | 成都迈奥信息技术有限公司 | Smart watch charging base integrated with router |
| CN104836311A (en) * | 2015-06-08 | 2015-08-12 | 厦门新声科技有限公司 | Non-polarized charging method |
| WO2023045376A1 (en) * | 2021-09-23 | 2023-03-30 | 深圳市吉迩科技有限公司 | Charging base, electronic cigarette, and charging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104079048B (en) | 2017-04-12 |
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