CN208369254U - Intelligent charging system suitable for battery and the electronic equipment using it - Google Patents
Intelligent charging system suitable for battery and the electronic equipment using it Download PDFInfo
- Publication number
- CN208369254U CN208369254U CN201820777395.XU CN201820777395U CN208369254U CN 208369254 U CN208369254 U CN 208369254U CN 201820777395 U CN201820777395 U CN 201820777395U CN 208369254 U CN208369254 U CN 208369254U
- Authority
- CN
- China
- Prior art keywords
- circuit
- storage battery
- power supply
- pole
- diode
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to technical field of electronic products, a kind of intelligent charging system suitable for battery and the electronic equipment using it are specifically disclosed, wherein intelligent charging system includes: front end circuit, front end circuit includes: metal-oxide-semiconductor, power supply circuit, feed circuit, and power supply circuit is connect with the pole D；Control circuit is connect with the pole G；The anode of diode is connect with the pole D；The input terminal of feed circuit and the cathode of diode connect；Charging circuit is equipped with the first supply port of the feedback port and external output voltage that connect with the output end of feed circuit；When diode forward conducting, the output voltage of the first supply port is higher than the output voltage of battery, and when diode reversely ends, the output voltage of the first supply port is equal to the rated charging voltage of battery.Intelligent charging system provided by the utility model suitable for battery and the electronic equipment using it, generation when can prevent power supply adaptor from working the case where the remaining capacity decline of battery.
Description
Technical Field
The utility model relates to an electronic product technical field especially relates to an intelligent charging system and use its electronic equipment suitable for battery.
Background
Due to the rapid development of society, more and more people put higher demands on the convenience of life style. The notebook computer can meet the office requirement and is not limited to a certain fixed position, so the notebook computer becomes one of mainstream office tools. The notebook computer has two power supply modes, one is supplied by a storage battery, and the other is directly supplied by a power adapter.
If the power adapter is inserted to directly supply power under the condition that the storage battery is assembled, the power adapter can automatically stop supplying power after the storage battery is fully charged, and the storage battery is used as a power supply of the notebook computer; however, once the power of the storage battery is reduced a little, the power adapter is restarted immediately, and the storage battery is charged to 100% of the power. The cyclic charging and discharging of the storage battery can reduce the service life of the storage battery.
In order to prevent the storage battery from being charged circularly, when the residual capacity of the storage battery is between 95% and 100% after the storage battery is fully charged, the control module of the notebook computer commands the charging module to stop charging the storage battery, and the storage battery is not charged again until the residual capacity of the storage battery is reduced to below 95%.
However, in this period of time, the remaining capacity of the storage battery may still decrease even if the power adapter is plugged, which may cause the consumer to misunderstand that the power adapter has failed, and is not favorable for improving the user experience.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligence charging system suitable for battery can effectively prevent the emergence of the condition that the surplus electric quantity of power adapter during operation battery descends.
Another object of the present invention is to provide an electronic device, which has the advantage that the remaining capacity of the battery will not decrease when the power adapter is working.
For reaching above purpose, on the one hand, the utility model provides an intelligent charging system suitable for battery, include:
a front-end circuit, the front-end circuit comprising:
the MOS tube comprises an S pole, a D pole and a G pole, wherein the S pole is grounded;
the output end of the power supply circuit is connected with the D pole;
the control circuit is connected with the G pole, and when the residual electric quantity of the storage battery reaches a preset value, the voltage sent to the G pole by the control circuit is lower than the starting voltage of the MOS tube; when the residual electric quantity of the storage battery is lower than a preset value, the voltage sent to the G pole by the control circuit is higher than the starting voltage of the MOS tube;
the anode of the diode is connected with the D pole;
the input end of the feedback circuit is connected with the cathode of the diode;
the charging circuit is provided with a feedback port connected with the output end of the feedback circuit and a first power supply port for outputting voltage outwards, and the first power supply port is used for being connected with a storage battery; when the diode is conducted in the forward direction, the output voltage of the first power supply port is higher than the output voltage of the storage battery, and when the diode is cut off in the reverse direction, the output voltage of the first power supply port is equal to the rated charging voltage of the storage battery.
Preferably, the method further comprises the following steps:
and the detection circuit is respectively connected with the storage battery and the control circuit and is used for detecting the residual electric quantity of the storage battery and sending different level signals to the control circuit according to different residual electric quantities.
Preferably, the MOS transistor is a PMOS transistor, and when the remaining capacity of the storage battery reaches a preset value, the signal sent to the control circuit by the detection circuit is a high level signal; otherwise, the signal sent to the control circuit by the detection circuit is a low level signal;
or,
the MOS tube is an NMOS tube, and when the residual electric quantity of the storage battery reaches a preset value, a signal sent to the control circuit by the detection circuit is a low-level signal; otherwise, the signal sent to the control circuit by the detection circuit is a high level signal.
Preferably, the difference between the output voltage of the charging circuit and the output voltage of the secondary battery is 0.4V to 0.8V.
Preferably, the method further comprises the following steps:
and one end of the filter capacitor is connected with the cathode of the diode, and the other end of the filter capacitor is grounded.
Preferably, the method further comprises the following steps:
and the first resistance module is positioned between the power supply circuit and the MOS tube.
Preferably, the method further comprises the following steps:
and the second resistance module is positioned between the MOS tube and the diode.
Preferably, the method further comprises the following steps: and the third resistance module is positioned between the diode and the feedback circuit.
In another aspect, an electronic device is provided, which includes a storage battery and any one of the above intelligent charging systems, and the charging circuit further includes:
the input end is used for being connected with the output end of a power adapter, and the power adapter provides electric energy for the charging circuit through the input end;
the second power supply port is electrically connected with the input end, and the current flowing out of the second power supply port is used for providing electric energy except for the charging requirement for the electronic equipment; the current flowing out of the first power supply port is used for providing the electric energy required by charging for the electronic equipment.
Preferably, the electronic device is a notebook computer, a tablet computer or a mobile phone.
The beneficial effects of the utility model reside in that: the utility model provides an intelligent charging system and use its electronic equipment suitable for battery possesses following advantage:
(1) when electronic equipment such as a notebook computer runs large-scale software, the utility model provides an intelligent charging system can prevent the situation that the electric quantity of the battery becomes low after the battery is fully charged when a power adapter is plugged in;
(2) the utility model provides an intelligent charging system can improve user's experience, indirectly brings economic benefits to protection battery that can be better, the life of extension battery reduces the pollution to the environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
In the figure:
1. a front-end circuit;
101. an MOS tube; 102. a power supply circuit; 103. a control circuit; 104. a diode; 105. a feedback circuit; 106. a detection circuit; 107. a filter capacitor;
2. a charging circuit;
3. and (4) a storage battery.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment provides an electronic apparatus including a secondary battery 3, a power adapter, and an intelligent charging system adapted to the secondary battery 3. Preferably, the electronic device may be a notebook computer, a tablet computer, a mobile phone or the like.
In the present embodiment, the intelligent charging system for the storage battery 3 includes a front-end circuit 1 and a charging circuit 2. The front-end circuit 1 includes a MOS transistor 101(Metal Oxide Semiconductor, MOS transistor for short), a power supply circuit 102, a control circuit 103, a diode 104, and a feedback circuit 105. The MOS transistor 101 includes an S pole, a D pole and a G pole, wherein the S pole is grounded. The output of the supply circuit 102 is connected to the D-pole. The control circuit 103 is connected with the G pole, and when the residual capacity of the storage battery 3 reaches a preset value, the voltage sent to the G pole by the control circuit 103 is lower than the starting voltage of the MOS tube 101; when the residual capacity of the storage battery 3 is lower than the preset value, the voltage sent to the G pole by the control circuit 103 is higher than the starting voltage of the MOS tube 101. Preferably, the preset value may be 100%, 95%, 90%, 87%, or the like of the maximum capacity of the storage battery 3, and in the present embodiment, the preset value is 100%. The anode of the diode 104 is connected to the D-pole. The input of the feedback circuit 105 is connected to the cathode of the diode 104. The charging circuit 2 is provided with a feedback port connected to the output terminal of the feedback circuit 105 and a first power supply port for outputting voltage to the outside, and the first power supply port is used for being connected to the storage battery 3. When the diode 104 is turned on in the forward direction, the output voltage of the first power supply port is higher than the output voltage of the secondary battery 3, and when the diode 104 is turned off in the reverse direction, the output voltage of the first power supply port is equal to the rated charge voltage of the secondary battery 3. The storage battery 3 is connected with a first power supply port of the intelligent charging system, and the storage battery 3 is charged by the first power supply port.
In particular, the charging circuit 2 is provided with an input for connection to an output of the power adapter, in addition to the feedback port for providing power to the charging circuit 2. The power adapter may supply power to the charging circuit 2 through the input terminal. The charging circuit 2 is provided with a second power supply port electrically connected to the input terminal, in addition to the first power supply port electrically connected to the input terminal. The current flowing out of the first power supply port is used for providing the electric energy required by charging for the electronic equipment (the electric energy required by simply charging the storage battery 3); and the current flowing out of the second power supply port is used for providing electric energy (which is required by the normal operation of the electronic equipment after the storage battery is detached) except for the charging requirement for the electronic equipment.
In short, insert charging circuit 2's input (the interface that charges) with power adapter's output (the joint that charges), the electric current that comes out from charging circuit 2's output is divided into two the tunnel, provides the electric energy for electronic equipment's normal operating all the way, and another way is connected with battery 3, provides the electric energy for charging of battery 3:
(1) if the remaining capacity of the battery 3 is 100% (i.e. the battery 3 is in a full charge state), the voltage sent to the G pole by the control circuit 103 is lower than the turn-on voltage of the MOS transistor 101, and the MOS transistor 101 is turned off, so the output voltage of the power supply circuit 102 will enter the feedback circuit 105 through the first resistor module, the second resistor module, the diode 104 and the third resistor module in sequence, thereby increasing the voltage of the feedback circuit 105, so that the output voltage of the charging circuit 2 is higher than the output voltage of the battery 3, and the battery 3 will not be discharged to the outside, therefore, the remaining capacity of the battery 3 will be maintained at 100% and will not be reduced.
(2) If the remaining capacity of the storage battery 3 is lower than 100% (namely, the storage battery 3 is in an unfilled state), the voltage sent to the G pole by the control circuit 103 is equal to or greater than the starting voltage of the MOS tube 101, the MOS tube 101 is turned on, the output voltage of the power supply circuit 102 is directly led to the ground by the S pole (namely, the anode voltage of the diode 104 is zero), the cathode voltage of the diode 104 (equal to the output voltage of the storage battery 3) is greater than the anode voltage, the diode 104 is turned off in the reverse direction, the output voltage of the charging circuit 2 is equal to the rated charging voltage of the storage battery 3, and the storage battery 3 enters a.
In the present embodiment, the intelligent charging system for the storage battery 3 further includes a detection circuit 106. The detection circuit 106 is connected to the battery 3 and the control circuit 103, respectively, and transmits different level signals to the control circuit 103 according to different remaining power amounts. For example, the MOS transistor 101 is a PMOS transistor, and when the remaining capacity of the battery 3 is 100%, the signal sent by the detection circuit 106 to the control circuit 103 is a high level signal; otherwise, the signal sent by the detection circuit 106 to the control circuit 103 is a low level signal. Specifically, when the input terminal of the control circuit 103 receives a high level signal, which indicates that the remaining capacity of the battery 3 is 100%, the control circuit 103 turns off the MOS transistor 101 and turns on the diode 104, and finally, the charging circuit 2 outputs a voltage higher than the output voltage of the battery 3 to prevent the battery 3 from discharging. When the input end of the control circuit 103 receives a low level signal, which indicates that the remaining capacity of the storage battery 3 is lower than 100%, the control circuit 103 turns on the MOS transistor 101 and turns off the diode 104 in the reverse direction, and finally, the charging circuit 2 outputs a voltage equal to the rated charging voltage of the storage battery 3 to perform a normal charging process. Of course, it may be: the MOS transistor 101 is an NMOS transistor, and when the remaining capacity of the battery 3 is 100%, the signal sent by the detection circuit 106 to the control circuit 103 is a low level signal; otherwise, the signal sent by the detection circuit 106 to the control circuit 103 is a high level signal.
In the present embodiment, when the output voltage of the charging circuit 2 is higher than the output voltage of the storage battery 3, the difference between the output voltage of the charging circuit 2 and the output voltage of the storage battery 3 required by different electronic devices is different, and generally, when the difference between the output voltage of the charging circuit 2 and the output voltage of the storage battery 3 is between 0.4V and 0.8V, the overall operation effect of the intelligent charging system is better.
In this embodiment, the type of the diode 104 is also required, and when the reverse current is less than 8uA, the overall operation effect of the intelligent charging system is better.
In this embodiment, the intelligent charging system further includes a filter capacitor 107. One end of the filter capacitor 107 is connected to the cathode of the diode 104, and the other end is grounded. In particular, the filter capacitor 107 may act as a buffer, protecting the diode 104 and the feedback circuit 105.
In this embodiment, one, two, or all of the first resistor module, the second resistor module, and the third resistor module may be added to the intelligent charging system according to different design requirements. The first resistance module is located between the power supply circuit 102 and the MOS transistor 101, the second resistance module is located between the MOS transistor 101 and the diode 104, and the third resistance module is located between the diode 104 and the feedback circuit 105.
The intelligent charging system that this embodiment provided possesses following advantage:
(1) when electronic equipment such as a notebook computer runs large-scale software, the intelligent charging system provided by the embodiment can prevent the situation that the electric quantity of the battery becomes low after the battery is fully charged when the power adapter is plugged;
(2) the intelligent charging system that this embodiment provided can improve user's experience, indirectly brings economic benefits to protection battery 3 that can be better, extension battery 3's life reduces the pollution to the environment.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An intelligent charging system suitable for a storage battery, comprising:
front-end circuit (1), said front-end circuit (1) comprising:
the MOS tube (101) comprises an S pole, a D pole and a G pole, wherein the S pole is grounded;
a power supply circuit (102), wherein the output end of the power supply circuit (102) is connected with the D pole;
the control circuit (103) is connected with the G pole, and when the residual capacity of the storage battery (3) reaches a preset value, the voltage sent to the G pole by the control circuit (103) is lower than the starting voltage of the MOS tube (101); when the residual capacity of the storage battery (3) is lower than a preset value, the voltage sent to the G pole by the control circuit (103) is higher than the starting voltage of the MOS tube (101);
a diode (104), wherein the anode of the diode (104) is connected with the D pole;
a feedback circuit (105), wherein the input end of the feedback circuit (105) is connected with the cathode of the diode (104);
the charging circuit (2) is provided with a feedback port connected with the output end of the feedback circuit (105) and a first power supply port for outputting voltage outwards, and the first power supply port is used for being connected with a storage battery (3); when the diode (104) is in forward conduction, the output voltage of the first power supply port is higher than the output voltage of the storage battery (3), and when the diode (104) is in reverse cutoff, the output voltage of the first power supply port is equal to the rated charging voltage of the storage battery (3).
2. The intelligent charging system for secondary batteries according to claim 1, further comprising:
and the detection circuit (106) is respectively connected with the storage battery and the control circuit (103) and is used for detecting the residual capacity of the storage battery (3) and sending different level signals to the control circuit (103) according to different residual capacities.
3. The intelligent charging system for secondary batteries according to claim 2,
the MOS tube is a PMOS tube, and when the residual electric quantity of the storage battery (3) reaches a preset value, a signal sent to the control circuit (103) by the detection circuit (106) is a high-level signal; otherwise, the signal sent to the control circuit (103) by the detection circuit (106) is a low level signal;
or,
the MOS tube is an NMOS tube, and when the residual electric quantity of the storage battery (3) reaches a preset value, a signal sent to the control circuit (103) by the detection circuit (106) is a low-level signal; otherwise, the signal sent by the detection circuit (106) to the control circuit (103) is a high level signal.
4. The intelligent charging system for secondary batteries according to claim 1, characterized in that the difference between the output voltage of the charging circuit (2) and the output voltage of the secondary battery (3) is comprised between 0.4V and 0.8V.
5. The intelligent charging system for secondary batteries according to claim 1, further comprising:
and one end of the filter capacitor (107) is connected with the cathode of the diode (104), and the other end of the filter capacitor (107) is grounded.
6. The intelligent charging system for secondary batteries according to claim 1, further comprising:
the first resistance module is positioned between the power supply circuit (102) and the MOS tube (101).
7. The intelligent charging system for secondary batteries according to claim 1, further comprising:
and the second resistance module is positioned between the MOS tube (101) and the diode (104).
8. The intelligent charging system for secondary batteries according to claim 1, further comprising:
a third resistance module located between the diode (104) and a feedback circuit (105).
9. An electronic device, comprising a storage battery (3) and the intelligent charging system of any one of claims 1 to 8, wherein the charging circuit (2) further comprises:
the input end is used for being connected with the output end of a power adapter, and the power adapter provides electric energy for the charging circuit (2) through the input end;
the second power supply port is electrically connected with the input end, and the current flowing out of the second power supply port is used for providing electric energy except for the charging requirement for the electronic equipment; the current flowing out of the first power supply port is used for providing the electric energy required by charging for the electronic equipment.
10. The electronic device of claim 9, wherein the electronic device is a laptop, a tablet, or a cell phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777395.XU CN208369254U (en) | 2018-05-23 | 2018-05-23 | Intelligent charging system suitable for battery and the electronic equipment using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777395.XU CN208369254U (en) | 2018-05-23 | 2018-05-23 | Intelligent charging system suitable for battery and the electronic equipment using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369254U true CN208369254U (en) | 2019-01-11 |
Family
ID=64929991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820777395.XU Active CN208369254U (en) | 2018-05-23 | 2018-05-23 | Intelligent charging system suitable for battery and the electronic equipment using it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369254U (en) |
-
2018
- 2018-05-23 CN CN201820777395.XU patent/CN208369254U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8649827B2 (en) | Power supply unit for mobile terminal and power supply switching method for mobile terminal | |
| CN101882701B (en) | Charging method and system | |
| CN102570546A (en) | Mobile terminal and charge device and method thereof | |
| CN107231012A (en) | A kind of method of quick charge, terminal, charger and system | |
| CN204407955U (en) | Fast charging and discharging portable power source | |
| CN109358548A (en) | A kind of charging method of automotive diagnostic system, vehicle diagnosis and automotive diagnostic unit | |
| CN101316044B (en) | Charging device capable of providing backward current and inrush current protection | |
| CN206547012U (en) | Charging circuit and electronic equipment | |
| CN112311038B (en) | Charging and discharging protection circuit, terminal equipment and battery discharging control method | |
| CN105375538A (en) | Quick charging device | |
| CN114006433A (en) | Battery device | |
| CN208369254U (en) | Intelligent charging system suitable for battery and the electronic equipment using it | |
| CN102118057B (en) | DC UPS circuit with integrated charge-discharge circuit | |
| CN103532212A (en) | Charging management circuit and movable power supply | |
| CN216086233U (en) | Super capacitor charging and discharging circuit and system | |
| US20230045028A1 (en) | Charging system, method and device for controlling charging system, and electronic device | |
| CN109888871A (en) | A kind of how battery balanced power supply unit, method of supplying power to, electric locking and vehicle | |
| CN212183174U (en) | Charging circuit, auxiliary power supply and operation equipment | |
| CN209526556U (en) | Power supply switch circuit | |
| CN111463853A (en) | Power supply circuit and robot apparatus | |
| CN203607908U (en) | A charging management circuit and a mobile power supply | |
| CN111600365A (en) | Charging circuit, auxiliary power supply and operation equipment | |
| CN221467420U (en) | Battery pack circuit and battery pack with charge-discharge ports | |
| CN215528640U (en) | Charging circuit | |
| CN212435390U (en) | Battery charging and discharging control circuit and battery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |