CN208674925U - A kind of double cell switching power supply unit - Google Patents
A kind of double cell switching power supply unit Download PDFInfo
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- CN208674925U CN208674925U CN201821402060.6U CN201821402060U CN208674925U CN 208674925 U CN208674925 U CN 208674925U CN 201821402060 U CN201821402060 U CN 201821402060U CN 208674925 U CN208674925 U CN 208674925U
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- battery modules
- power supply
- oring
- management chip
- charging management
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- 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
Abstract
The utility model discloses a kind of double cells to switch power supply unit, comprising: for providing the first battery modules and the second battery modules of power supply for load；For first battery modules and the second battery modules to be carried out with the charge management circuit of Charge Management；For controlling first battery modules and the second battery modules to the ORing comparison circuit of load supplying；The charge management circuit includes the first charging management chip being connected in the first battery modules and the second charging management chip being connected in the second battery modules, first charging management chip and the second charging management chip are connect with master controller simultaneously, and the master controller and system terminal wireless communication connect.It will not influence each other between first battery modules of the utility model and the access of the second battery modules, improve the safety and reliability of system voltage in swapping process, improve power supply efficiency.
Description
Technical field
The utility model relates to power technique fields, switch power supply unit more particularly to a kind of double cell.
Background technique
With the continuous promotion of portable terminal product treatment ability and enriching constantly for function, the power consumption of end product
Also increasing, therefore stand-by time just becomes one of the Key Performance Indicator of product.Since portable terminal is by body
Long-pending limitation cannot extend stand-by time, therefore main battery+standby battery simply by being continuously increased single-lithium-battery tankage
Double-battery powered scheme will become extend stand-by time preferred embodiment,
Currently, in Double-battery powered scheme, the general unilateal conduction characteristic for utilizing diode is contacted on each battery
Then diode is coupled in parallel to system load, it is mutually isolated to reach two battery packs, to not occur the mutually mesh to reversely charging
, since the energy loss using system after diode is larger, the capacity utilization of battery can be reduced；Another Double-battery powered
The shortcomings that scheme is the individually designed defencive function of each battery, then directly in parallel to give system power supply, this scheme first is that: when it
In any battery all the way when breaking down, in addition just can not export to system power supply all the way；In addition: when total electricity of two groups of battery packs
Pressure has big difference, and will cause battery to reverse battery large current charge problem, and battery pack charging MOS is caused the feelings such as to switch repeatedly
Shape, it is most likely that charging MOS can be damaged, so as to cause a series of safety problems such as charge protection failures.
Utility model content
The purpose of the utility model is to overcome shortcoming in the prior art, a kind of double cell switching is provided for Denso
It sets, for solving the problems, such as above-mentioned background technique, the advantage for having power supply efficiency high, highly reliable.
The utility model is solved by following technical proposals:
A kind of double cell switching power supply unit, comprising:
For providing the first battery modules and the second battery modules of power supply for load；
For first battery modules and the second battery modules to be carried out with the charge management circuit of Charge Management；
For controlling first battery modules and the second battery modules to the ORing comparison circuit of load supplying；
The charge management circuit includes the first charging management chip being connected in the first battery modules and is connected to
The second charging management chip in two battery modules, first charging management chip and the second charging management chip simultaneously with master
Controller connection, the master controller and system terminal wireless communication connect.
Further, the ORing comparison circuit includes the first ORing being connected on first charging management chip
Comparison circuit and the 2nd ORing comparison circuit being connected on second charging management chip, the first ORing are more electric
Road and the 2nd ORing comparison circuit include ORing controller and metal-oxide-semiconductor, and the pole G of the metal-oxide-semiconductor connects the ORing control
The pole D of device, the metal-oxide-semiconductor connects corresponding first charging management chip or the second charging management chip, the pole S of the metal-oxide-semiconductor
Connection load.
Preferably, the model LM5050-1 of the ORing controller, the metal-oxide-semiconductor are N-channel MOS pipe.
Preferably, the model of first charging management chip and the second charging management chip is LT4020.
Preferably, the master controller is connected by RS485 and system terminal wireless communication.
The utility model have the following advantages that compared with prior art and the utility model has the advantages that
1. first battery modules and the second battery modules of the utility model are charged by the charge management circuit
Management, the first charging management chip and the second charging management chip can carry out the first battery modules and the second battery modules real
When information read, including the reading to information such as charging current, charging voltage, charging temperatures, master controller can acquire described
The data that first charging management chip and the second charging management chip are read, and data information is real-time by the RS485 of isolation
It is synchronized to system terminal, system terminal can be monitored according to real time data and take corresponding operation, ensure that and charged
The reliability and stability of journey.
2. the utility model includes for controlling first battery modules and the second battery modules to the of load supplying
One ORing comparison circuit and the 2nd ORing comparison circuit, the first ORing comparison circuit and the 2nd ORing comparison circuit are equal
Including ORing controller and metal-oxide-semiconductor, the ORing controller and low on-resistance N-channel MOS pipe of model LM5050-1 cooperates
It uses, corresponding access metal-oxide-semiconductor, one side ORing is opened or turned off by the detection to supply voltage and system voltage
Controller opens the timeliness and reliability that metal-oxide-semiconductor can guarantee power supply to system power supply, still further aspect ORing control in time
Device turns off rapidly the anti-sink current that metal-oxide-semiconductor can prevent and reduce system voltage to input terminal power supply, the first battery modules with
It, will not be mutual between the first battery modules and the access of the second battery modules while the access mutual backup of second battery modules
It influences, improves the safety and reliability of system voltage in swapping process, improve power supply efficiency, by between metal-oxide-semiconductor DS
Ultralow internal resistance realizes ultra-low loss switching power supply instead of conventional freewheel diode.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the functional block diagram that a kind of double cell switches power supply unit.
Fig. 2 is the double cell switching circuit figure that a kind of double cell switches power supply unit.
Fig. 3 is the schematic illustration that a kind of double cell switches power supply unit.
Specific embodiment
The present invention will be further described in detail with reference to the embodiments and the accompanying drawings, but the implementation of the utility model
Mode is without being limited thereto.
The specific implementation process of the utility model is as follows:
As shown in Figure 1 to Figure 3, a kind of double cell switches power supply unit, comprising:
For providing the first battery modules and the second battery modules of power supply for load；
For first battery modules and the second battery modules to be carried out with the charge management circuit of Charge Management；
For controlling first battery modules and the second battery modules to the ORing comparison circuit of load supplying；
The charge management circuit includes the first charging management chip being connected in the first battery modules and is connected to
The second charging management chip in two battery modules, first charging management chip and the second charging management chip simultaneously with master
Controller connection, the master controller and system terminal wireless communication connect.
The ORing comparison circuit includes the first ORing comparison circuit being connected on first charging management chip
And it is connected to the 2nd ORing comparison circuit on second charging management chip, the first ORing comparison circuit and second
ORing comparison circuit includes ORing controller and metal-oxide-semiconductor, and the pole G of the metal-oxide-semiconductor connects the ORing controller, described
The pole D of metal-oxide-semiconductor connects corresponding first charging management chip or the second charging management chip, and the pole the S connection of the metal-oxide-semiconductor is negative
It carries.
The model LM5050-1 of the ORing controller, the metal-oxide-semiconductor are N-channel MOS pipe.
The model of first charging management chip and the second charging management chip is LT4020.
The master controller is connected by RS485 and system terminal wireless communication.
The working principle of the utility model are as follows: in the present embodiment, first battery modules and the second battery modules can be with
Main battery and standby battery, the Charge Management of the first battery modules and the second battery modules respectively by the first charging management chip and
Second Charge Management core is individually controlled, and the model of the first charging management chip and the second charging management chip is preferably
LT4020, LT4020 are the multisection lithium battery charging management chips with dynamic route management function (DPPM) of high integration,
Master controller is communicated with the first charging management chip and the second charging management chip by bus, is realized to the first battery mould
The real time information of group and the second battery modules is read, and the real time information includes charging current information, charging voltage information, battery
Temperature information etc., it is described.LM5050-1 is the ORing circuit controller suitable for N+1 power supply system, it and low on-resistance N
Channel MOS tube is used cooperatively, and while acquisition metal-oxide-semiconductor efficient performance, also provides ORing diode reverse-current protection function
Can, LM5050-1 opens by the detection to supply voltage and system voltage or turns off corresponding access metal-oxide-semiconductor.On the one hand
LM5050-1 opens the timeliness and reliability that metal-oxide-semiconductor can guarantee power supply to system power supply, still further aspect LM5050- in time
1, which turns off rapidly metal-oxide-semiconductor, can prevent and reduce system voltage to the anti-sink current of input terminal power supply.ORing circuit Redundancy Design
Characteristic ensure that the reliability of main battery and standby battery supply access mutual backup, also ensure system during standby hot-line insertion and extraction
The safety of voltage.In the present embodiment, when first battery modules and the second battery modules connect adapter, given by adapter
System power supply while adapter is to system power supply, charges to the first battery modules and the second battery modules respectively, mutually not shadow
It rings, when adapter is extracted, is then switched to system power supply in turn by the first battery modules and the second battery modules.First battery mould
Group and the course of work of the second battery modules switching power supply are as follows: one, do not access when system detection to adapter, and ought two electricity
When pond group is respectively connected to, then it is switched to system power supply in turn by two battery packs；Two, when the first battery modules are than the second electricity
When the voltage of Chi Mo group is high, at this time by the first battery modules to system power supply, when the second battery modules are than the first battery modules
When voltage is high, then by the second battery modules to system power supply；Three, when the first battery modules exist, the second battery modules are not present
When, then by the first battery modules to system power supply, when the second battery modules exist, in the absence of the first battery modules, at this time by
Second battery modules are to system power supply；Four, when the first battery modules and the voltage of the second battery modules are all equal, then by the first electricity
Chi Mo group and the second battery modules give system power supply simultaneously.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (5)
1. a kind of double cell switches power supply unit characterized by comprising
For providing the first battery modules and the second battery modules of power supply for load；
For first battery modules and the second battery modules to be carried out with the charge management circuit of Charge Management；
For controlling first battery modules and the second battery modules to the ORing comparison circuit of load supplying；
The charge management circuit include the first charging management chip being connected in the first battery modules and be connected to second electricity
The second charging management chip in Chi Mo group, first charging management chip and the second charging management chip while and main control
Device connection, the master controller and system terminal wireless communication connect.
2. a kind of double cell according to claim 1 switches power supply unit, it is characterised in that: the ORing comparison circuit
Including the first ORing comparison circuit being connected on first charging management chip and it is connected to the second Charge Management core
2nd ORing comparison circuit of on piece, the first ORing comparison circuit and the 2nd ORing comparison circuit include ORing control
Device and metal-oxide-semiconductor processed, the pole G of the metal-oxide-semiconductor connect the ORing controller, and the pole the D connection corresponding first of the metal-oxide-semiconductor is filled
The pole S of electric managing chip or the second charging management chip, the metal-oxide-semiconductor connects load.
3. a kind of double cell according to claim 2 switches power supply unit, it is characterised in that: the ORing controller
Model LM5050-1, the metal-oxide-semiconductor are N-channel MOS pipe.
4. a kind of double cell according to claim 1 switches power supply unit, it is characterised in that: the first Charge Management core
The model of piece and the second charging management chip is LT4020.
5. a kind of double cell according to claim 1 switches power supply unit, it is characterised in that: the master controller passes through
RS485 and system terminal wireless communication connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402060.6U CN208674925U (en) | 2018-08-28 | 2018-08-28 | A kind of double cell switching power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402060.6U CN208674925U (en) | 2018-08-28 | 2018-08-28 | A kind of double cell switching power supply unit |
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| CN208674925U true CN208674925U (en) | 2019-03-29 |
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| CN201821402060.6U Active CN208674925U (en) | 2018-08-28 | 2018-08-28 | A kind of double cell switching power supply unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797962A (en) * | 2019-12-10 | 2020-02-14 | 歌尔科技有限公司 | Double-battery switching method and double-battery system |
| CN110994779A (en) * | 2019-12-20 | 2020-04-10 | 苏州浪潮智能科技有限公司 | Main and standby power supply combining control circuit and control method |
| CN111262296A (en) * | 2020-02-28 | 2020-06-09 | Oppo广东移动通信有限公司 | Double-battery charging structure and mobile terminal |
| CN111953030A (en) * | 2019-05-16 | 2020-11-17 | 珠海格力电器股份有限公司 | Double-battery control system and method and mobile terminal |
-
2018
- 2018-08-28 CN CN201821402060.6U patent/CN208674925U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111953030A (en) * | 2019-05-16 | 2020-11-17 | 珠海格力电器股份有限公司 | Double-battery control system and method and mobile terminal |
| CN110797962A (en) * | 2019-12-10 | 2020-02-14 | 歌尔科技有限公司 | Double-battery switching method and double-battery system |
| CN110797962B (en) * | 2019-12-10 | 2023-10-03 | 歌尔科技有限公司 | Dual-battery switching method and dual-battery system |
| CN110994779A (en) * | 2019-12-20 | 2020-04-10 | 苏州浪潮智能科技有限公司 | Main and standby power supply combining control circuit and control method |
| CN111262296A (en) * | 2020-02-28 | 2020-06-09 | Oppo广东移动通信有限公司 | Double-battery charging structure and mobile terminal |
| CN111262296B (en) * | 2020-02-28 | 2023-08-15 | Oppo广东移动通信有限公司 | Dual-battery charging structure and mobile terminal |
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