CN203660620U - Charging control circuit for battery of mobile device - Google Patents
Charging control circuit for battery of mobile device Download PDFInfo
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- CN203660620U CN203660620U CN201420057500.4U CN201420057500U CN203660620U CN 203660620 U CN203660620 U CN 203660620U CN 201420057500 U CN201420057500 U CN 201420057500U CN 203660620 U CN203660620 U CN 203660620U
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- device battery
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Abstract
The utility model discloses a charging control circuit for a battery of a mobile device, which is applicable to controlling a charging power supply to charge the battery of the mobile device. The charging control circuit comprises a switch unit, a time unit, a current monitoring unit, a storage unit and a control unit, wherein the time unit is used for monitoring charging time of the charging power supply; the current monitoring unit is used for monitoring charging current of the charging power supply; the storage unit is used for storing pre-set charging capacity of the battery of the mobile device; the control unit is coupled with the switch unit, the time unit, the current monitoring unit and the storage unit; the control unit is used for calculating charged capacity according to charging time and charging current; when the charged capacity reaches pre-set charging capacity, the charging of the battery of the mobile device by the charging power supply is switched off through the switch unit. Therefore, the charging control circuit for the battery of the mobile device disclosed by the utility model can effectively prevent the battery of the mobile device from being damaged by over-charging.
Description
Technical field
The utility model relates to a kind of mobile device accessory, and is particularly related to a kind of charging control circuit that can protect the mobile device battery that mobile device battery avoids overcharging.
Background technology
Along with the progress of electronics and wireless telecommunications science and technology, mobile device becomes with oneself indispensable electronic equipment of people already, for example, and on the various vehicles or dining room, market etc., all visible mobile phone of staff or panel computer everywhere, using the instrument of linking up as contact.
Due to as the portable demand of the mobile device such as mobile phone or panel computer, mobile device is all equipped with conventionally as the rechargeable battery such as Ni-MH battery or lithium battery, using the power supply as mobile device operation.For before the power supply of mobile device battery is about to exhaust, can supplement in time electric power for mobile device continuous service, mobile phone or panel computer also can be equipped with as the electric supply installation such as charger or portable power source conventionally, to mobile device battery is charged.
So the behavior of mobile device battery being charged by the charge power supply being provided as the electric supply installation such as charger or portable power source, becomes the routine demand being seen everywhere in life already.In addition, the variation of the function providing along with mobile device, and people are for the degree of dependence that uses mobile device, the power consumption of mobile device also grows with each passing day, therefore, user also will increase progressively for time and the number of times of the charging of its all mobile device battery thereupon.
But; along with the difference of user to its all mobile device behaviour in service; and the deficiency of the safeguard measure of mobile device battery own; in the time that user charges to mobile device battery by the charge power supply being provided as the electric supply installation such as charger or portable power source, always can not reach smoothly.Even if mobile device has shown 100% charging, but also can maintaining minute current, reality continues charging, consuming constantly the feeder ear energy and grid electricity fee cost increases; Wherein, the charging interval is long to cause overcharging or cell damage causes and cannot charge etc., is to be a large factor that cannot satisfactory charging, so that has what is heard when charging accident as overheated in battery, even blast or catching fire.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of charging control circuit of mobile device battery, and it can effectively protect mobile device battery to avoid damaging because overcharging.
Another object of the present utility model is to provide a kind of charging control circuit of mobile device battery, and it can effectively prevent from continuing carrying out the disaster due to the invalid charging of mobile device battery.
For reaching above-mentioned and other object, the utility model provides a kind of charging control circuit, it is applicable to control the charging of charge power supply to mobile device battery, and the charging control circuit of this mobile device battery comprises switch element, time quantum, current monitoring unit, storage element and control unit.
Wherein, time quantum is in order to monitor the charging interval of charge power supply, and current monitoring unit is in order to monitor the charging current of charge power supply, and storage element is in order to store the preset charged capacity of mobile device.Control unit couples switch element, time quantum, current monitoring unit and storage element; this control unit is in order to calculate charging capacity according to charging interval, the charging current of monitoring; and when calculating charging capacity while arriving the stored preset charged capacity of storage element; cut off the charging of charge power supply to mobile device battery by switch element, effectively to protect mobile device battery to avoid damaging because overcharging.
In one embodiment, this charging control circuit also comprises output unit, this output unit is in order to optionally to show charging interval, charging current of monitoring, the data information such as charging capacity and preset charged capacity, so that user is detected and grasp whole charging procedure at any time.
In one embodiment, this charging control circuit also comprises voltage monitoring unit, and this voltage monitoring unit is in order to monitor the charging voltage of charge power supply, and optionally charging voltage is presented on output unit, knows for user.
In one embodiment; the storage element of this charging control circuit also stores the preset charged time; control unit is in the time that the monitored charging interval arrives the preset charged time; cut off the charging of charge power supply to mobile device battery by switch element, further to protect mobile device battery to avoid damaging because overcharging.
In one embodiment, the control unit of this charging control circuit can calculate the charging interval reciprocal according to the preset charged time of the charging interval of monitoring and storage unit stores, and optionally the calculated charging interval reciprocal is presented on output unit, know for user.
In one embodiment, the control unit of this charging control circuit can calculate charging capacity reciprocal according to the charging capacity of monitoring and the preset charged capacity of storage unit stores, and optionally calculated charging capacity reciprocal is presented on output unit, know for user.
In one embodiment, the control unit of this charging control circuit can calculate accumulative total charging times according to the operation of switch element, and calculated accumulative total charging times is stored in to storage element and is optionally presented on output unit, know that for user mobile device battery charging and discharging cycle-index successively decreases and aging reference index to battery relative capacity.
In one embodiment, the storage element of this charging control circuit also stores trickle charge time and trickle-charge current, control unit is in the time that the monitored charging interval arrives the trickle charge time, relatively trickle-charge current and the charging current of monitoring, and in the time that charging current is still not more than trickle-charge current, cut off the charging of charge power supply to mobile device battery by switch element, effectively to prevent from carrying out the invalid charging of mobile device battery, and know that for user this mobile device battery has likely damaged the body of mobile device battery because of excessive deep discharge last time.
In one embodiment, this charging control circuit also comprises input unit, this input unit is in order to optionally to set the preset charged capacity, preset charged time, trickle charge time and the trickle-charge current that are stored in storage element, so that user can, according to the specification of different mobile device batteries, carry out safe and efficient charging setting.
To sum up; the beneficial effect of the charging control circuit of mobile device battery provided by the utility model is; it can be in the time of the stored preset charged capacity of the arrival of the charging capacity storage element of monitoring or the arrival preset charged time in charging interval of monitoring; cut off the charging of charge power supply to mobile device battery by switch element, therefore can effectively protect mobile device battery to avoid damaging because overcharging.In addition, also can be in the time that the monitored charging interval arrives the trickle charge time, relatively trickle-charge current and the charging current of monitoring, and in the time that charging current is still not more than trickle-charge current, cut off the charging of charge power supply to mobile device battery by switch element, therefore can effectively prevent from continuing to carry out the invalid charging of mobile device battery.In addition, also calculated accumulative total charging times can be presented on output unit, know that for user the charge and discharge cycles number of times of mobile device battery successively decreases and aging reference index to battery relative capacity.
For above and other object of the present utility model, feature and advantage can be become apparent, below special with preferred embodiment, and coordinate accompanying drawing, elaborate.
Accompanying drawing explanation
Fig. 1 shows according to the stereogram of a kind of mobile device battery charge controller of the utility model preferred embodiment.
The connection diagram that the mobile device battery charge controller of Fig. 2 display application Fig. 1 charges.
Fig. 3 shows the charging control circuit block diagram of the mobile device battery charge controller of Fig. 1.
Fig. 4 shows the charging sequential chart of general mobile device battery.
Symbol description:
10-electric supply installation, 2-mobile device battery charge controller, 20-charging control circuit, 201-universal serial convergence bus plug, the bus hub of 202-universal serial convergence, 21-control unit, 22-current monitoring unit, 23-switch element, 24-time quantum, 25-storage element, 26-input unit, 261, 262, 263, 264, 266-button, 265-thumb-acting switch, 27-output unit, 271-seven-segment display, 28-voltage monitoring unit, 30-mobile device, 301-mobile device battery, 40-universal serial convergence bus transmission line, 41-trickle pattern, 42-constant current mode, 43-constant voltage mode, 45-low-voltage preset value, 46-normal voltage preset value.
Embodiment
Please refer to shown in Fig. 1,2 and 3, Fig. 1 shows according to the stereogram of a kind of mobile device battery charge controller of the utility model preferred embodiment.In figure, mobile device battery charge controller 2 has universal serial convergence bus plug 201, universal serial convergence bus hub 202 and the charging control circuit 20 shown in Fig. 3.When mobile device battery charge controller 2 uses, universal serial convergence bus plug 201 is plugged on as the electric supply installation 10 of wall-type charger (Wall Adapter) as illustrated in fig. 2, and connect mobile device 30 with the universal serial convergence bus transmission line 40 that is plugged on universal serial convergence bus hub 202, with the charge power supply of controlling electric supply installation 10 to being arranged on the charging of the mobile device battery 301 in mobile device 30.
As shown in the figure, charging control circuit 20 comprises switch element 23, time quantum 24, current monitoring unit 22, storage element 25 and control unit 21, and the alternative input unit 26, the voltage monitoring unit 28 and the output unit 27 being made up of seven-segment display 271 that are made up of button 261,262,263,264,266, thumb-acting switch 265 of also comprising.
Wherein, voltage monitoring unit 28 is in order to monitor the charging voltage of charge power supply, time quantum 24 is in order to monitor the charging interval of charge power supply, current monitoring unit 22 is in order to monitor the charging current of charge power supply, and storage element 25 is in order to optionally to store preset charged capacity and the preset charged time of mobile device.21 of control units couple input unit 26, output unit 27, voltage monitoring unit 28, switch element 23, time quantum 24, current monitoring unit 22 and storage element 25, control unit 21 is in order to optionally according to charging interval of monitoring, charging current is calculated charging capacity, and when calculating charging capacity while arriving the stored preset charged capacity of storage element 25 or the institute's charging interval of monitoring arrival preset charged time, cut off the charging of charge power supply to mobile device battery 301 by switch element 23, effectively to protect mobile device battery 301 to avoid damaging because overcharging, even cause disaster.In addition, control unit 21 also optionally calculates accumulative total charging times according to the operation of switch element 23, and calculated accumulative total charging times is stored in storage element 25.
Please refer to shown in Fig. 4, it shows the charging sequential chart of general mobile device battery.Generally speaking; when mobile device battery 301 is in the time that low-voltage state starts to charge; conventionally can carry out the precharge of trickle-charge current with trickle pattern (Trickle Mode) 41; and at the voltage of mobile device battery 301 during higher than low-voltage preset value 45; change with constant current mode (Constant Current Mode) 42 and carry out constant-current charge; until the voltage of mobile device battery 301 during higher than normal voltage preset value 46, just carries out determining the charging of voltage with constant voltage mode (Constant Voltage Mode) 43.
Therefore known, as optionally stored trickle charge time and the trickle-charge current of default mobile device in storage element 25, and judged according to charging interval and the charging current of monitoring by control unit 21, and in the time that the monitored charging interval arrives the trickle charge time, relatively trickle-charge current and the charging current of monitoring, and in the time that charging current is still not more than trickle-charge current, cut off the charging of charge power supply to mobile device battery 301 by switch element 23, can effectively prevent from carrying out the invalid charging of mobile device battery 301.
In addition, in order to allow user set the parameter values such as the preset charged time, trickle charge time, trickle-charge current and the preset charged capacity that are stored in storage element 25 according to the specification of different mobile device batteries 301, charging control circuit 20 input unit 26 being made up of button 261,262,263,264,266, thumb-acting switch 265 etc. of also can application controls unit 21 arranging in pairs or groups, to carry out the setting of various parameter value or power-down mode.Wherein, thumb-acting switch 265 is in order to set the operation of whether carrying out aforesaid invalid charging inspection and invalid charging power-off, that is to say, in the time that thumb-acting switch 265 is arranged in the Normal position of figure, can not carry out the operation of aforesaid invalid charging inspection and invalid charging power-off, and in the time that thumb-acting switch 265 is arranged in another Batt position different from figure, just can carry out the operation of aforesaid invalid charging inspection and invalid charging power-off.
In addition, in order to allow user be detected at any time and to grasp whole charging procedure, charging control circuit 20 also can be applied the arrange in pairs or groups operation of button 261,262,263,264,266 of the output unit 27 being made up of seven-segment display 271, to carry out the accumulative total charging times as calculated, the charging interval of being monitored, charging voltage, charging current, preset charged time, the demonstration of the data information such as charging capacity and preset charged capacity.Certainly, as calculated the charging interval reciprocal or calculate charging capacity reciprocal according to the preset charged capacity of storage in the charging capacity of being monitored and storage element 25 according to the preset charged time storing in the charging interval of being monitored and storage element 25 by control unit 21 time, also optionally calculated charging interval reciprocal or charging capacity reciprocal are presented on seven-segment display 271 and supply user to know.
In previous embodiment, although be to form so-called input unit 26 with button 261,262,263,264,266, thumb-acting switch 265 etc., and form so-called output unit 27 with seven-segment display 271, so those skilled in the art should know, also can use liquid crystal panel instead and be used as output unit 27, or even come simultaneously as input unit 26 and output unit 27, so that the design of mobile device battery charge controller 2 is more succinct with contact panel.
Although the utility model with preferred embodiment openly as above, so it is not in order to limit the utility model, any those skilled in the art, not departing from various variations and the retouching done in spirit and scope of the present utility model, also belong to scope of the present utility model.Therefore, protection range of the present utility model is when being as the criterion depending on claims person of defining.
Claims (9)
1. a charging control circuit for mobile device battery, it is applicable to control the charging of charge power supply to mobile device battery, it is characterized in that, and this charging control circuit comprises:
Switch element;
Time quantum, it is in order to monitor the charging interval of described charge power supply;
Current monitoring unit, it is in order to monitor the charging current of described charge power supply;
Storage element, it is in order to store the preset charged capacity of described mobile device battery; And
Control unit, it couples described switch element, described time quantum, described current monitoring unit and described storage element, this control unit is in order to calculate charging capacity according to described charging interval, described charging current, and in the time that described charging capacity arrives described preset charged capacity, cut off the charging of described charge power supply to described mobile device battery by described switch element.
2. the charging control circuit of mobile device battery as claimed in claim 1, it is characterized in that, this charging control circuit also comprises output unit, and it is in order to optionally to show described charging interval, described charging current, described charging capacity and described preset charged capacity.
3. the charging control circuit of mobile device battery as claimed in claim 2, it is characterized in that, this charging control circuit also comprises voltage monitoring unit, and it is in order to monitor the charging voltage of described charge power supply, and optionally described charging voltage is presented on described output unit.
4. the charging control circuit of mobile device battery as claimed in claim 2, it is characterized in that, described storage element also stores the preset charged time, described control unit, in the time that the described charging interval arrives the described preset charged time, cuts off the charging of described charge power supply to described mobile device battery by described switch element.
5. the charging control circuit of mobile device battery as claimed in claim 4, it is characterized in that, described control unit calculates the charging interval reciprocal according to described charging interval and described preset charged time, and optionally the described charging interval reciprocal is presented on described output unit.
6. the charging control circuit of mobile device battery as claimed in claim 2, it is characterized in that, described control unit calculates charging capacity reciprocal according to described charging capacity and described preset charged capacity, and optionally described charging capacity reciprocal is presented on described output unit.
7. the charging control circuit of mobile device battery as claimed in claim 2, it is characterized in that, described control unit calculates accumulative total charging times according to the operation of described switch element, and described accumulative total charging times is stored in to described storage element and optionally described accumulative total charging times is presented on described output unit.
8. the charging control circuit of mobile device battery as claimed in claim 2, it is characterized in that, described storage element also stores trickle charge time and trickle-charge current, described control unit is in the time that the described charging interval arrives the described trickle charge time, more described trickle-charge current and described charging current, and in the time that described charging current is still not more than described trickle-charge current, cut off the charging of described charge power supply to described mobile device battery by described switch element.
9. the charging control circuit of the mobile device battery as described in claim 1,4 or 8, it is characterized in that, this charging control circuit also comprises input unit, and this input unit is in order to optionally to set described preset charged capacity, described preset charged time, trickle charge time or described trickle-charge current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057500.4U CN203660620U (en) | 2014-01-28 | 2014-01-28 | Charging control circuit for battery of mobile device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057500.4U CN203660620U (en) | 2014-01-28 | 2014-01-28 | Charging control circuit for battery of mobile device |
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| Publication Number | Publication Date |
|---|---|
| CN203660620U true CN203660620U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420057500.4U Expired - Fee Related CN203660620U (en) | 2014-01-28 | 2014-01-28 | Charging control circuit for battery of mobile device |
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| CN (1) | CN203660620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234982A (en) * | 2017-08-14 | 2017-10-10 | 成都雅骏新能源汽车科技股份有限公司 | A kind of power battery charging method counted based on big data |
-
2014
- 2014-01-28 CN CN201420057500.4U patent/CN203660620U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107234982A (en) * | 2017-08-14 | 2017-10-10 | 成都雅骏新能源汽车科技股份有限公司 | A kind of power battery charging method counted based on big data |
| CN107234982B (en) * | 2017-08-14 | 2019-05-07 | 成都雅骏新能源汽车科技股份有限公司 | A kind of power battery charging method based on big data statistics |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20150128 |
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| EXPY | Termination of patent right or utility model |