CN216904322U - Charging system and terminal equipment of multi-lug dual-cell battery - Google Patents
Charging system and terminal equipment of multi-lug dual-cell battery Download PDFInfo
- Publication number
- CN216904322U CN216904322U CN202122036496.6U CN202122036496U CN216904322U CN 216904322 U CN216904322 U CN 216904322U CN 202122036496 U CN202122036496 U CN 202122036496U CN 216904322 U CN216904322 U CN 216904322U
- Authority
- CN
- China
- Prior art keywords
- transistor
- capacitor
- charge pump
- pump circuit
- circuit module
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present disclosure relates to a charging system and terminal device for a multi-tab dual-cell battery, including: a charging circuit and a dual cell battery; the dual-cell battery comprises a battery connector, wherein the battery connector at least comprises a first battery connector and a second battery connector; the charging circuit comprises a first charge pump circuit module and a second charge pump circuit module, wherein the input end of the first charge pump circuit module is externally connected with an alternating current-direct current adapter, the output end of the first charge pump circuit module is electrically connected with the input end of the second charge pump circuit module, and the output end of the second charge pump circuit module is respectively electrically connected with a first battery connector and a second battery connector; the first charge pump circuit module converts the charging voltage into a first target voltage value, and the second charge pump circuit module converts the first target voltage value into a second target voltage value and then respectively outputs the second target voltage value to the first battery connector and the second battery connector of the double-cell battery, so that the charging efficiency is improved.
Description
Technical Field
The disclosure relates to the technical field of battery charging, in particular to a charging system and terminal equipment of a multi-lug dual-cell battery.
Background
The rechargeable battery is a rechargeable battery with limited charging times and can be matched with a charger for use. Through charging the battery, the battery can be reused, and the requirements of economy and environmental protection can be favorably met. The charging process of a battery is the reverse of its discharging process, specifically, the process of converting electrical energy into chemical energy stored in the battery.
In current terminal equipment, a single-cell battery is mainly used for charging. However, in the single cell battery, since the voltage is about 4.5V when the battery is fully charged, when the charging current exceeds 8A, the heat generation of the battery side circuit board is serious. For this reason, the battery connector is also required to be replaced with a battery connector having a smaller impedance and a larger current, which leads to an increase in hardware cost; meanwhile, the wiring and heat dissipation treatment in the battery end circuit board are also more difficult. In order to meet the heat dissipation requirement, the charging power of the battery end of a common single cell is about 36W, which results in low charging efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a charging system and a terminal device for a multi-tab dual-cell battery, which improve charging efficiency.
In a first aspect, an embodiment of the present disclosure provides a charging system for a multi-tab dual-cell battery, including: a charging circuit and a dual cell battery;
the dual cell battery includes a battery connector including at least a first battery connector and a second battery connector;
the charging circuit comprises a first charge pump circuit module and a second charge pump circuit module, wherein the input end of the first charge pump circuit module is externally connected with an alternating current-direct current adapter, the output end of the first charge pump circuit module is electrically connected with the input end of the second charge pump circuit module, and the output end of the second charge pump circuit module is respectively and electrically connected with the first battery connector and the second battery connector;
the first charge pump circuit module converts a charging voltage into a first target voltage value, and the second charge pump circuit module converts the first target voltage value into a second target voltage value and then respectively outputs the second target voltage value to the first battery connector and the second battery connector of the dual-battery cell.
Optionally, the dual-cell battery further includes a positive plate and a negative plate, where the positive plate at least includes a first positive plate and a second positive plate, the first positive plate is electrically connected to the first battery connector through a first positive tab, and the second positive plate is electrically connected to the second battery connector through a second positive tab;
the first positive plate and the second positive plate are arranged in an insulated mode.
Optionally, the battery connector further includes a third battery connector, the positive plate further includes a third positive plate, the first positive plate is electrically connected to the first battery connector through the first positive tab, the second positive plate is electrically connected to the second battery connector through the second positive tab, and the third positive plate is electrically connected to the third battery connector through the third positive tab.
Optionally, the charge pump circuit module further comprises a control module, an input end of the control module is electrically connected to the dual-cell battery, and an output end of the control module is electrically connected to a control end of the first charge pump circuit module and a control end of the second charge pump circuit module, respectively;
the control module outputs control signals to the first charge pump circuit module and the second charge pump circuit module according to the electric quantity information of the double-battery-cell battery.
Optionally, the first charge pump circuit module includes: the circuit comprises a first capacitor, a second capacitor, a third capacitor, a first transistor, a second transistor, a third transistor and a fourth transistor;
the input end of the first transistor and one end of the third capacitor are both connected with the AC/DC adapter, the other end of the third capacitor is grounded, the output end of the first transistor and the input end of the second transistor are both connected with the first end of the first capacitor, the other end of the first capacitor is connected with the input end of the fourth transistor and the output end of the third transistor, the output end of the fourth transistor is grounded, the output end of the second transistor, the input end of the third transistor and one end of the second capacitor are all connected with the input end of the second charge pump circuit module, and the other end of the second capacitor is grounded;
in a capacitor series connection stage, the first transistor and the third transistor are turned on, and the second transistor and the fourth transistor are turned off;
in the capacitor parallel connection stage, the second transistor and the fourth transistor are turned on, and the first transistor and the third transistor are turned off.
Optionally, the second charge pump circuit module includes: a fourth capacitor, a fifth capacitor, a sixth capacitor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor;
the input end of the fifth transistor and one end of the sixth capacitor are both connected to the output end of the first charge pump circuit module, the other end of the sixth capacitor is grounded, the output end of the fifth transistor and the input end of the sixth transistor are both connected to the first end of the fourth capacitor, the other end of the fourth capacitor is connected to the input end of the eighth transistor and the output end of the seventh transistor, the output end of the eighth transistor is grounded, the output end of the sixth transistor, the input end of the seventh transistor and one end of the fifth capacitor are all connected to the first battery connector and the second battery connector, and the other end of the fifth capacitor is grounded;
in a capacitor series connection stage, the fifth transistor and the seventh transistor are turned on, and the sixth transistor and the eighth transistor are turned off;
in the capacitor parallel connection stage, the sixth transistor and the eighth transistor are turned on, and the fifth transistor and the seventh transistor are turned off.
In a second aspect, an embodiment of the present disclosure further provides a terminal device, where the terminal device includes the charging system according to any one of the first aspects.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the charging system and the terminal equipment of two electric core batteries of many utmost points ear that this disclosed embodiment provided include first battery connector and second battery connector at least through setting up two electric core batteries, when charging the battery, shunts through first battery connector and second battery connector, reduce the electric current that flows through the battery connector, have reduced the power loss of battery connector, have improved the charge efficiency of battery. The battery in the charging system is a double-cell battery, the heat generated by the circuit board at the end of the double-cell battery is much smaller than that generated by the single-cell battery, and the charging circuit comprises a first charge pump circuit module and a second charge pump circuit module, so that the input current of the charging circuit can be reduced, the charging wire at the input end of the charging circuit can be reduced, the heat generated by the charging circuit can be reduced, and the safety performance of the charging circuit can be improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a charging system provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another charging system provided in an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another charging system provided in the embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a first charge pump circuit module according to an embodiment of the disclosure;
fig. 5 is a schematic structural diagram of another first charge pump circuit module according to an embodiment of the disclosure;
fig. 6 is a schematic structural diagram of a first charge pump circuit module according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a second charge pump circuit module according to an embodiment of the disclosure;
fig. 8 is a schematic structural diagram of another second charge pump circuit module according to an embodiment of the disclosure;
fig. 9 is a schematic structural diagram of a second charge pump circuit module according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
10, a charging circuit; 20. a dual cell battery; 30. an AC/DC adapter; 110. a first charge pump circuit module; 120. a second charge pump circuit module; 21. a battery connector; 23. a positive plate; 211. a first battery connector; 212. a second battery connector; 213. a third battery connector; 221. a first positive tab; 222. a second positive tab; 223. a third positive tab; 231. a first positive plate; 232. a second positive plate; 233. a third positive plate; 130. a control module; c1, a first capacitance; c2, a second capacitor; c3, a third capacitance; c4, a fourth capacitance; c5, a fifth capacitance; c6, a sixth capacitor; q1, a first transistor; q2, a second transistor; q3, a third transistor; q4, a fourth transistor; q5, a fifth transistor; q6, a sixth transistor; q7, a seventh transistor; q8, eighth transistor.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Fig. 1 is a schematic structural diagram of a charging system provided in an embodiment of the present disclosure, and as shown in fig. 1, the charging system includes: a charging circuit 10 and a dual cell battery 20, the dual cell battery 20 comprising a battery connector 21, the battery connector 21 comprising at least a first battery connector 211 and a second battery connector 212; the charging circuit 10 includes a first charge pump circuit module 110 and a second charge pump circuit module 120, an input end of the first charge pump circuit module 110 is externally connected with the ac/dc adapter 30, an output end of the first charge pump circuit module 110 is electrically connected with an input end of the second charge pump circuit module 120, and an output end of the second charge pump circuit module 120 is electrically connected with a first battery connector 211 and a second battery connector 212, respectively; the first charge pump circuit module 110 converts the charging voltage into a first target voltage value, and the second charge pump circuit module 120 converts the first target voltage value into a second target voltage value and then outputs the second target voltage value to the first battery connector 211 and the second battery connector 212 of the dual-cell battery 20, respectively.
As shown in fig. 1, the dual-cell battery 20 includes a first battery connector 211 and a second battery connector 212, the first battery connector 211 is electrically connected to a first positive tab 231 in the cell through a first positive tab 221, the second battery connector 212 is electrically connected to a second positive tab 232 in the cell through a second positive tab 222, the battery connector of the dual-cell battery 20 at least includes the first battery connector 211 and the second battery connector 212, when the charging current of the dual-cell battery 20 is 10A, the current through the first battery connector 211 and the second battery connector 212 is split at this time, that is, the current through the first battery connector 211 and the current through the second battery connector 212 are respectively 5A, so that the current flowing through the battery connectors is reduced, the power loss of the battery connectors is reduced, and the charging efficiency of the dual-cell battery 20 is improved.
It should be noted that fig. 1 exemplarily shows that the battery connector 21 includes the first battery electrical connector 211 and the second battery connector 212, and in other embodiments, the battery connector 21 may further include the first battery connector 211, the second battery connector 212, and the third battery connector 213, as shown in fig. 2. When the dual-cell battery 20 comprises three battery electric connectors, at this time, the dual-cell battery 20 is arranged to comprise a positive plate 23 and a negative plate, the positive plate and the negative plate are arranged in an insulated manner, the positive plate 23 comprises a first positive plate 231, a second positive plate 232 and a third positive plate 233, at this time, the first battery connector 211 is electrically connected with the first positive plate 231 through the first positive tab 221, the second battery connector 212 is electrically connected with the second positive plate 232 through the second positive tab 222, and the third battery connector 213 is electrically connected with the third positive plate 233 through the third positive tab 223. In addition, fig. 1 exemplarily shows that the dual-cell battery includes two battery connectors and two positive plates, one positive plate is electrically connected with one battery connector through one positive tab, fig. 2 exemplarily shows that the dual-cell battery includes three battery connectors and three positive plates, and one positive plate is electrically connected with one battery connector through one positive tab.
By arranging the battery in the charging system as a dual-cell battery 20, that is, two cells in one battery are connected in series, a dual-cell battery is adopted, so that higher charging power, such as 50W, 60W, and 100W, can be realized. In addition, the charging voltage of the dual-cell battery is 2 times of the charging voltage of the single-cell battery, the charging power of the same battery end is half of the charging current of the single-cell battery, so the heat generation of the circuit board at the end of the dual-cell battery is much smaller than that of the single-cell battery, and in addition, under the condition of corresponding to certain output power (for example, 8A 4.5V), the impedance requirement of the battery connector on the (4A 9V) dual-cell battery is not very high, and the wiring and the heat dissipation treatment of the circuit board PCB at the end of the battery are relatively easy.
Through setting up charging circuit and including first charge pump circuit module 110 and second charge pump circuit module 120, if two battery cell voltages are full of charge 9V, the battery charging current is 10A, owing to adopt two charge pump circuit modules to establish ties, second charge pump circuit module 120 input current is 5A, input voltage 18V, first charge pump circuit module 110 input current is 2.5A, input voltage 36V, greatly reduced charging circuit's input current, the charging wire rod of charging circuit input has been reduced, the generate heat of charging circuit has been reduced, charging circuit's security performance has been improved. In addition, because the input current of the charging circuit is less than 3A, according to the PD protocol specification, the wire does not need to be additionally provided with an e-mark chip, and the wire cost of the charging circuit is reduced.
The charging system that this disclosed embodiment provided includes first battery connector and second battery connector at least through setting up two battery cells, when charging the battery, shunts through first battery connector and second battery connector, reduces the electric current that flows through the battery connector, has reduced the power loss of battery connector, has improved the charge efficiency of battery. The battery in the charging system is a double-cell battery, the heating of the circuit board at the end of the double-cell battery is much smaller than that of the single-cell battery, and the charging circuit comprises a first charge pump circuit module and a second charge pump circuit module, so that the input current of the charging circuit can be reduced, the charging wire at the input end of the charging circuit can be reduced, the heating of the charging circuit can be reduced, and the safety performance of the charging circuit can be improved.
Fig. 3 is a schematic structural diagram of another charging system provided in an embodiment of the present disclosure, and as shown in fig. 3, the charging system further includes a control module 130, an input end of the control module 130 is electrically connected to the dual-cell battery 20, and output ends of the control module 130 are electrically connected to a control end of the first charge pump circuit module 110 and a control end of the second charge pump circuit module 120, respectively;
the control module 130 outputs a control signal to the first charge pump circuit module 110 and the second charge pump circuit module 120 according to the power information of the dual-cell battery 20.
For example, as shown in fig. 3, the charging circuit 10 further includes a control module 130, where the control module 130 outputs a control signal to the first charge pump circuit module 110 and the second charge pump circuit module 120 according to the acquired electric quantity information of the dual-cell battery 20, and controls the first charge pump circuit module 110 and the second charge pump circuit module 120 to be turned on, so as to realize that the charging circuit charges the dual-cell battery 20.
Fig. 4 is a schematic structural diagram of a first charge pump circuit module according to an embodiment of the disclosure, and as shown in fig. 4, the first charge pump circuit module 110 includes: a first capacitor C1, a second capacitor C2, a third capacitor C3, a first transistor Q1, a second transistor Q2, a third transistor Q3 and a fourth transistor Q4; the input end of the first transistor Q1 and one end of the third capacitor C3 are both connected to the ac/dc adapter 30, the other end of the third capacitor C3 is grounded, the output end of the first transistor Q1 and the input end of the second transistor Q25 are both connected to the first end of the first capacitor C1, the other end of the first capacitor C13 is connected to the input end of the fourth transistor Q4 and the output end of the third transistor Q3, the output end of the fourth transistor Q4 is grounded, the output end of the second transistor Q2, the input end of the third transistor Q3 and one end of the second capacitor C2 are both connected to the input end of the second charge pump circuit module 120, and the other end of the second capacitor C2 is grounded.
In the capacitor series connection stage, the first transistor Q1 and the third transistor Q3 are turned on, and the second transistor Q2 and the fourth transistor Q4 are turned off; in the capacitor parallel stage, the second transistor Q2 and the fourth transistor Q4 are turned on, and the first transistor Q1 and the third transistor Q3 are turned off.
As shown in fig. 4, the first charge pump circuit module 110 implements voltage reduction by switching the first capacitor C1 and the second capacitor C2, and since there is no inductive device in the first charge pump circuit module 110, there is no inductive energy loss in the first charge pump circuit module 110, so that the charging efficiency of the charging circuit 10 is higher, the noise is lower, and the electromagnetic interference is smaller.
The first charge pump circuit module 110 includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a first transistor Q1, a second transistor Q2, a third transistor Q3, and a fourth transistor Q4, and by controlling on and off of the first transistor Q1, the second transistor Q2, the third transistor Q3, and the fourth transistor Q4, the first capacitor C1 and the second capacitor C2 are connected in series and in parallel, so that the input voltage of the first charge pump circuit module 110 is 2 times of the output voltage, and the input current is half of the output current. Specifically, as shown in fig. 5, the input voltage of the first charge pump circuit module 110 is VIN, the input current is I, when the first transistor Q1 and the third transistor Q3 are turned on, the second transistor Q2 and the fourth transistor Q4 are turned off, the first capacitor C1 and the second capacitor C2 are connected in series, the voltage of the first capacitor C1 is approximately equal to VIN/2, the voltage of the second capacitor C2 is approximately equal to VIN/2, and at this time, the charging voltage output from the first charge pump circuit module 110 to the second charge pump circuit module 120 is VIN/2. As shown in fig. 6, when the second transistor Q2 and the fourth transistor Q4 are turned on, the first transistor Q1 and the third transistor Q3 are turned off, and the first capacitor C1 and the second capacitor C2 are connected in parallel, at this time, the charging current output by the first charge pump circuit module 110 to the second charge pump circuit module 120 is 2I, so that the input voltage of the first charge pump circuit module 110 is 2 times of the output voltage, and the input current is half of the output current.
Fig. 7 is a schematic structural diagram of a second charge pump circuit module according to an embodiment of the disclosure, and as shown in fig. 7, the second charge pump circuit module 120 includes: a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a fifth transistor Q5, a sixth transistor Q6, a seventh transistor Q7, and an eighth transistor Q8; an input end of the fifth transistor Q5 and one end of the sixth capacitor C6 are both connected to the output end of the first charge pump circuit module 110, the other end of the sixth capacitor C6 is grounded, an output end of the fifth transistor Q5 and an input end of the sixth transistor Q6 are both connected to the first end of the fourth capacitor C4, the other end of the fourth capacitor C4 is connected to an input end of the eighth transistor Q8 and an output end of the seventh transistor Q7, an output end of the eighth transistor Q8 is grounded, an output end of the sixth transistor Q6, an input end of the seventh transistor Q7 and one end of the fifth capacitor C5 are both connected to the first battery connector 121 and the second battery connector 122, and the other end of the fifth capacitor C5 is grounded.
In the capacitor series connection stage, the fifth transistor Q5 and the seventh transistor Q7 are turned on, and the sixth transistor Q6 and the eighth transistor Q7 are turned off; in the capacitor parallel stage, the sixth transistor Q6 and the eighth transistor Q8 are turned on, and the fifth transistor Q5 and the seventh transistor Q7 are turned off.
As shown in fig. 7, the second charge pump circuit module 120 implements voltage reduction by switching the fourth capacitor C1 and the fifth capacitor C2, and since there is no inductive device in the second charge pump circuit module 120, there is no inductive energy loss in the second charge pump circuit module 120, so that the charging efficiency of the charging circuit 10 is higher, the noise is lower, and the electromagnetic interference is smaller.
The second charge pump circuit module 120 includes a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a fifth transistor Q5, a sixth transistor Q6, a seventh transistor Q7, and an eighth transistor Q8, and by controlling on and off of the fifth transistor Q5, the sixth transistor Q6, the seventh transistor Q7, and the eighth transistor Q8, the fourth capacitor C4 and the fifth capacitor C5 are connected in series and in parallel, so that the input voltage of the second charge pump circuit module 120 is 2 times of the output voltage, and the input current is half of the output current. Specifically, as shown in fig. 8, the input voltage of the second charge pump circuit module 120 is VIN, the input current is I, when the fifth transistor Q5 and the seventh transistor Q7 are turned on, the sixth transistor Q6 and the eighth transistor Q7 are turned off, the fourth capacitor C4 and the fifth capacitor C5 are connected in series, the voltage of the first capacitor C1 is approximately equal to VIN/2, the voltage of the second capacitor C2 is approximately equal to VIN/2, and at this time, the charging voltage output by the second charge pump circuit module 120 to the first battery connector 211 and the second battery connector 212 is VIN/2. As shown in fig. 9, when the sixth transistor Q6 and the eighth transistor Q8 are turned on, the fifth transistor Q5 and the seventh transistor Q7 are turned off, and the fourth capacitor C4 and the fifth capacitor C5 are connected in parallel, at this time, the charging current output by the second charge pump circuit module 120 to the first battery connector 211 and the second battery connector 212 is 2I, and it is realized that the input voltage of the first charge pump circuit module 120 is 2 times of the output voltage, and the input current is half of the output current.
Fig. 10 is a schematic structural diagram of a terminal device provided in an embodiment of the present disclosure, where the terminal device includes the charging system described in any of the embodiments above, and has the beneficial effects of any of the embodiments above.
It should be noted that the terminal device may be a computer, a mobile phone, or the like, and the embodiment of the present disclosure does not specifically limit the terminal device.
It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A charging system for a multi-tab dual-cell battery, comprising: a charging circuit and a dual cell battery;
the dual cell battery includes a battery connector including at least a first battery connector and a second battery connector;
the charging circuit comprises a first charge pump circuit module and a second charge pump circuit module, wherein the input end of the first charge pump circuit module is externally connected with an alternating current-direct current adapter, the output end of the first charge pump circuit module is electrically connected with the input end of the second charge pump circuit module, and the output end of the second charge pump circuit module is respectively and electrically connected with the first battery connector and the second battery connector;
the first charge pump circuit module converts a charging voltage into a first target voltage value, and the second charge pump circuit module converts the first target voltage value into a second target voltage value and then respectively outputs the second target voltage value to a first battery connector and a second battery connector of the dual-battery cell;
the double-cell battery further comprises a positive plate and a negative plate, the positive plate at least comprises a first positive plate and a second positive plate, the first positive plate is electrically connected with the first battery connector through a first positive tab, and the second positive plate is electrically connected with the second battery connector through a second positive tab;
the first positive plate and the second positive plate are arranged in an insulated mode;
the first charge pump circuit module includes: the circuit comprises a first capacitor, a second capacitor, a third capacitor, a first transistor, a second transistor, a third transistor and a fourth transistor;
the input end of the first transistor and one end of the third capacitor are both connected with the AC/DC adapter, the other end of the third capacitor is grounded, the output end of the first transistor and the input end of the second transistor are both connected with the first end of the first capacitor, the other end of the first capacitor is connected with the input end of the fourth transistor and the output end of the third transistor, the output end of the fourth transistor is grounded, the output end of the second transistor, the input end of the third transistor and one end of the second capacitor are all connected with the input end of the second charge pump circuit module, and the other end of the second capacitor is grounded;
in a capacitor series connection stage, the first transistor and the third transistor are turned on, and the second transistor and the fourth transistor are turned off;
in a capacitor parallel connection stage, the second transistor and the fourth transistor are turned on, and the first transistor and the third transistor are turned off;
the second charge pump circuit module includes: a fourth capacitor, a fifth capacitor, a sixth capacitor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor;
the input end of the fifth transistor and one end of the sixth capacitor are both connected to the output end of the first charge pump circuit module, the other end of the sixth capacitor is grounded, the output end of the fifth transistor and the input end of the sixth transistor are both connected to the first end of the fourth capacitor, the other end of the fourth capacitor is connected to the input end of the eighth transistor and the output end of the seventh transistor, the output end of the eighth transistor is grounded, the output end of the sixth transistor, the input end of the seventh transistor and one end of the fifth capacitor are all connected to the first battery connector and the second battery connector, and the other end of the fifth capacitor is grounded;
in a capacitor series connection stage, the fifth transistor and the seventh transistor are turned on, and the sixth transistor and the eighth transistor are turned off;
in the capacitor parallel connection stage, the sixth transistor and the eighth transistor are turned on, and the fifth transistor and the seventh transistor are turned off.
2. The charging system according to claim 1, wherein the battery connector further comprises a third battery connector, the positive plate further comprises a third positive plate, the first positive plate is electrically connected to the first battery connector through a first positive tab, the second positive plate is electrically connected to the second battery connector through a second positive tab, and the third positive plate is electrically connected to the third battery connector through a third positive tab.
3. The charging system of claim 1, wherein the charging circuit further comprises a control module, an input terminal of the control module is electrically connected to the dual-cell battery, and an output terminal of the control module is electrically connected to the control terminal of the first charge pump circuit module and the control terminal of the second charge pump circuit module, respectively;
the control module outputs control signals to the first charge pump circuit module and the second charge pump circuit module according to the electric quantity information of the double-cell battery.
4. A terminal device characterized in that it comprises a charging system according to claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122036496.6U CN216904322U (en) | 2021-08-26 | 2021-08-26 | Charging system and terminal equipment of multi-lug dual-cell battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122036496.6U CN216904322U (en) | 2021-08-26 | 2021-08-26 | Charging system and terminal equipment of multi-lug dual-cell battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216904322U true CN216904322U (en) | 2022-07-05 |
Family
ID=82178969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122036496.6U Active CN216904322U (en) | 2021-08-26 | 2021-08-26 | Charging system and terminal equipment of multi-lug dual-cell battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216904322U (en) |
-
2021
- 2021-08-26 CN CN202122036496.6U patent/CN216904322U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208386212U (en) | A kind of uninterruptible power supply | |
| CN104798285A (en) | DC power supply device | |
| KR20220029522A (en) | Single stage ac-dc converter | |
| EP4387038A1 (en) | Battery power supply regulation circuit, regulation method, charging line, and terminal device | |
| CN113725961A (en) | Multi-connector battery topology framework, control method thereof and electronic equipment | |
| CN113725964A (en) | Charge and discharge control circuit of three-cell battery, control method of charge and discharge control circuit and terminal equipment | |
| CN112737319A (en) | Terminal equipment | |
| CN216904322U (en) | Charging system and terminal equipment of multi-lug dual-cell battery | |
| CN101917042A (en) | Lithium battery charger and DC booster integrated circuit system | |
| CN216959347U (en) | Charging system and terminal equipment applied to double-cell battery | |
| CN217182972U (en) | Charging system and terminal equipment | |
| CN117411155A (en) | Charging device, charging pile and charging system | |
| CN202586456U (en) | Multi-path charger | |
| CN214176956U (en) | Wireless charging circuit, electronic equipment and wireless charging system | |
| CN113725959A (en) | Shunting type battery charging and discharging control system, control method thereof and electronic equipment | |
| CN113725957A (en) | Multi-charge pump control circuit, control method and electronic equipment | |
| CN108233485A (en) | A kind of multi-functional charging pile system based on DC solid transformer | |
| CN113725956A (en) | Controllable power supply system of single-cell battery, charging method of controllable power supply system and terminal equipment | |
| CN107612352A (en) | One kind is segmented efficient phase shift power supply | |
| CN217486191U (en) | Charging device | |
| CN215042206U (en) | Energy storage package, vehicle charging equipment and charging station | |
| CN214100890U (en) | Wireless charging circuit, electronic equipment and wireless charging system | |
| CN113725965A (en) | Power supply control system and control method of multi-tab battery and electronic equipment | |
| CN217469470U (en) | Charging circuit and electronic device | |
| CN215817598U (en) | Charging device and electronic apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |