CN204103559U - A kind of power circuit - Google Patents

A kind of power circuit Download PDF

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Publication number
CN204103559U
CN204103559U CN201420576754.7U CN201420576754U CN204103559U CN 204103559 U CN204103559 U CN 204103559U CN 201420576754 U CN201420576754 U CN 201420576754U CN 204103559 U CN204103559 U CN 204103559U
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CN
China
Prior art keywords
super capacitor
electronic switch
management chip
charging management
power circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420576754.7U
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Chinese (zh)
Inventor
王平平
孔晓丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Goertek Co Ltd
Original Assignee
Qingdao Goertek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Qingdao Goertek Co Ltd filed Critical Qingdao Goertek Co Ltd
Priority to CN201420576754.7U priority Critical patent/CN204103559U/en
Application granted granted Critical
Publication of CN204103559U publication Critical patent/CN204103559U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a kind of power circuit, described power circuit comprises charging inlet, controller, charging management chip and battery, also comprise super capacitor, the voltage output end of a described charging inlet wherein road connects the first electronic switch (S1) and is connected with the positive pole of super capacitor afterwards, the negative pole of described super capacitor connects the 3rd electronic switch (S3) and is connected with the voltage input end of charging management chip afterwards, the other road of voltage output end of described charging inlet connects the second electronic switch (S2) and is connected with the voltage input end of charging management chip afterwards, the voltage output end of described charging management chip connects the voltage input end of battery, the control signal transmission terminal of described controller is connected with the control signal transmission terminal of described charging management chip.Power circuit of the present utility model controls different switch motion to switch the different operating state of super capacitor, and the accumulation of energy function of super capacitor self greatly improves the energy density of power-supply system.

Description

A kind of power circuit
Technical field
The utility model belongs to power technique fields, specifically, relates to a kind of power circuit.
Background technology
Along with the miniaturization of electronic product, it is little that it has volume to power-supply system, requirement capacious, current power-supply system generally only comprises rechargeable battery, although the lithium battery had at present can reach the capacity of 2000 MAHs, not only increase cost, due to its physical characteristic, be difficult to the energy density significantly improving battery, and so capacity still can not meet system to the jumbo demand of power supply, based on this, how to improve the energy density of power-supply system, thus meet the demand of electronic product to power-supply system, be the technical problem that the utility model mainly solves.
Summary of the invention
The utility model is low in order to solve existing power supply system energy densities, the problem that capacity is little, and propose a kind of power circuit, energy density is high.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of power circuit, comprise charging inlet, controller, charging management chip and battery, also comprise super capacitor, the voltage output end of a described charging inlet wherein road connects the first electronic switch (S1) and is connected with the positive pole of super capacitor afterwards, the negative pole of described super capacitor connects the 3rd electronic switch (S3) and is connected with the voltage input end of charging management chip afterwards, the other road of voltage output end of described charging inlet connects the second electronic switch (S2) and is connected with the voltage input end of charging management chip afterwards, the voltage output end of described charging management chip connects the voltage input end of battery, the control signal transmission terminal of described controller is connected with the control signal transmission terminal of described charging management chip, described first electronic switch (S1), second electronic switch (S2), 3rd electronic switch (S3) receives the control signal that described controller sends respectively.
Further, be also connected with voltage-multiplying circuit between described first electronic switch (S1) and the positive pole of described super capacitor, described voltage-multiplying circuit receives the control signal that described controller sends simultaneously.
Further again, the other road of negative pole of described super capacitor is also connected with the voltage input end of load afterwards by connection the 4th switch (S4), and described 4th switch (S4) receives the control signal that described controller sends.
Further, described charging inlet is USB interface or adaptor interface.
Compared with prior art, advantage of the present utility model and good effect are: power circuit of the present utility model is provided with super capacitor, control different switch motion to switch the different operating state of super capacitor, the accumulation of energy function of super capacitor self greatly improves the energy density of power-supply system, and super capacitor in circuit both can as the stand-by power supply of battery, can charge for battery when dead battery, and when external charging power source charges electric current is little, when power supply continuation is not strong, super capacitor can also play the effect of accumulation electric energy in circuit, run up to a certain degree by super capacitor be battery charge, to realize the quick charge of battery, improve the charge efficiency of total system.
After reading the detailed description of the utility model execution mode by reference to the accompanying drawings, other features of the present utility model and advantage will become clearly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of embodiment functional-block diagram of the power circuit that the utility model proposes.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one, the present embodiment proposes a kind of power circuit, as shown in Figure 1, comprise charging inlet, controller, charging management chip and battery, also comprise super capacitor, the voltage output end of described charging inlet is wherein connected with the positive pole of super capacitor after connecting the first electronic switch S1 on a road, be connected with the voltage input end of charging management chip after negative pole connection the 3rd electronic switch S3 of described super capacitor, be connected with the voltage input end of charging management chip after the other road of voltage output end of described charging inlet connects the second electronic switch S2, the voltage output end of described charging management chip connects the voltage input end of battery, the control signal transmission terminal of described controller is connected with the control signal transmission terminal of described charging management chip, described first electronic switch S1, second electronic switch S2, 3rd electronic switch S3 receives the control signal that described controller sends respectively.The operation principle of the power circuit of the present embodiment is: by arranging super capacitor, and form different charging and discharging circuit by arranging multiple electric-controlled switch in circuit, the discharge and recharge needs under different operating state can be applicable to, super capacitor has great power reservoir capacity, greatly can improve the energy density of power circuit, when dead battery, super capacitor can charge for battery, and when external charging power source charges electric current is less, super capacitor plays the effect of accumulation electric energy in circuit, run up to a certain degree by super capacitor be battery charge, to realize the quick charge of battery, improve the charge efficiency of total system.
Concrete, when charging, when USB charging device or adapter insert charging inlet, first electronic switch S1 disconnects, second electronic switch S2 closes, charging device is charged to battery by charging management chip, when the charging device adopting charging current less, as solar panel, photoelectric conversion efficiency due to solar panel is not too high, charging current is less, this Time Controller can control disconnection second electronic switch S2, closed first electronic switch S1, charging device is super capacitor charging by charging inlet, when the electricity of super capacitor reaches threshold value, controller controls closed 3rd electronic switch S3, now super capacitor charges to battery, to realize the quick charge process of battery, improve the charge efficiency of total system.
As a preferred embodiment, be also connected with voltage-multiplying circuit between described first electronic switch S1 and the positive pole of described super capacitor, described voltage-multiplying circuit receives the control signal that described controller sends simultaneously.Voltage-multiplying circuit plays boosting and transformation in the power circuit of the present embodiment, by charging device input alternating voltage carry out integral multiple boosting and after being converted to direct voltage for super capacitor charge, improve the charge efficiency of super capacitor, controller can control the operating state of voltage-multiplying circuit, charges to super capacitor with suitable voltage and electric current.
During electric discharge, when load current is excessive, when battery cannot meet for load supplying, the super capacitor of the present embodiment can also as power supply unit, it is directly load supplying, as shown in Figure 1, the other road of negative pole of described super capacitor is also connected with the voltage input end of load by after connection the 4th switch S 4, and described 4th switch S 4 receives the control signal that described controller sends.When discharging, battery can be selected to be load supplying or super capacitor according to the charge condition of battery is load supplying, and the 4th electronic switch S4 is normal open switch, and when super capacitor is load supplying, the 4th electronic switch S4 closes.
Wherein, the charging inlet in the power circuit of the present embodiment can be the charging inlet of USB interface, adaptor interface or solar panel.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection range of the present utility model.

Claims (4)

1. a power circuit, comprise charging inlet, controller, charging management chip and battery, it is characterized in that, also comprise super capacitor, the voltage output end of a described charging inlet wherein road connects the first electronic switch (S1) and is connected with the positive pole of super capacitor afterwards, the negative pole of described super capacitor connects the 3rd electronic switch (S3) and is connected with the voltage input end of charging management chip afterwards, the other road of voltage output end of described charging inlet connects the second electronic switch (S2) and is connected with the voltage input end of charging management chip afterwards, the voltage output end of described charging management chip connects the voltage input end of battery, the control signal transmission terminal of described controller is connected with the control signal transmission terminal of described charging management chip, described first electronic switch (S1), second electronic switch (S2), 3rd electronic switch (S3) receives the control signal that described controller sends respectively.
2. power circuit according to claim 1, is characterized in that, is also connected with voltage-multiplying circuit between described first electronic switch (S1) and the positive pole of described super capacitor, and described voltage-multiplying circuit receives the control signal that described controller sends simultaneously.
3. power circuit according to claim 1 and 2, it is characterized in that, the other road of negative pole of described super capacitor is also connected with the voltage input end of load afterwards by connection the 4th switch (S4), and described 4th switch (S4) receives the control signal that described controller sends.
4. power circuit according to claim 1 and 2, is characterized in that, described charging inlet is USB interface or adaptor interface.
CN201420576754.7U 2014-10-08 2014-10-08 A kind of power circuit Expired - Lifetime CN204103559U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420576754.7U CN204103559U (en) 2014-10-08 2014-10-08 A kind of power circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420576754.7U CN204103559U (en) 2014-10-08 2014-10-08 A kind of power circuit

Publications (1)

Publication Number Publication Date
CN204103559U true CN204103559U (en) 2015-01-14

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CN201420576754.7U Expired - Lifetime CN204103559U (en) 2014-10-08 2014-10-08 A kind of power circuit

Country Status (1)

Country Link
CN (1) CN204103559U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300605A (en) * 2014-10-08 2015-01-21 青岛歌尔声学科技有限公司 Power circuit and control method thereof
WO2018000130A1 (en) * 2016-06-27 2018-01-04 张磊 Engine standby power supply apparatus
CN111384754A (en) * 2020-03-27 2020-07-07 Tcl移动通信科技(宁波)有限公司 Charging method, charging device, storage medium and mobile terminal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300605A (en) * 2014-10-08 2015-01-21 青岛歌尔声学科技有限公司 Power circuit and control method thereof
WO2018000130A1 (en) * 2016-06-27 2018-01-04 张磊 Engine standby power supply apparatus
CN111384754A (en) * 2020-03-27 2020-07-07 Tcl移动通信科技(宁波)有限公司 Charging method, charging device, storage medium and mobile terminal
CN111384754B (en) * 2020-03-27 2021-09-28 Tcl移动通信科技(宁波)有限公司 Charging method, charging device, storage medium and mobile terminal

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Granted publication date: 20150114