CN102340169A - Double battery power supply circuit - Google Patents
Double battery power supply circuit Download PDFInfo
- Publication number
- CN102340169A CN102340169A CN2010102294406A CN201010229440A CN102340169A CN 102340169 A CN102340169 A CN 102340169A CN 2010102294406 A CN2010102294406 A CN 2010102294406A CN 201010229440 A CN201010229440 A CN 201010229440A CN 102340169 A CN102340169 A CN 102340169A
- Authority
- CN
- China
- Prior art keywords
- power supply
- batteries
- switching tube
- circuit
- supply circuits
- 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.)
- Pending
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a double battery power supply circuit which comprises an adapter and two batteries. The double battery power supply circuit also comprises: a charging control circuit, which is used to respectively control charging of the two batteries and charging switching between the two batteries; a power supply control circuit, which is used to respectively control the power supply of the two batteries to a load and power supply switching between the two batteries; an electric quantity comparison circuit, which is used to compare the electric quantity of the two batteries. The charging control circuit is respectively connected with the adapter, the electric quantity comparison circuit and the two batteries. The electric quantity comparison circuit is respectively connected with the two batteries. The power supply control circuit is respectively connected with the two batteries. By using the circuit of the invention, remaining power ability of mobile internet devices (MID) can be raised; the battery with high electric quantity is automatically selected to provide power for the MID; the battery with low electric quantity is automatically selected to be charged. A switching tube blocks a power supply loop of the batteries and a backend system so that the battery can not be charged and discharge at the same time. Security of the circuit can be raised and service life of the battery can be guaranteed.
Description
Technical field
The present invention relates to a kind of double cell power supply circuits, particularly relate to a kind of double cell power supply circuits of the MID of being used for equipment.
Background technology
Along with mobile internet device; Be that MID (Mobile Internet Devices) is in vehicle-mounted market; B2C (Business-to-Consumer Business to Consumer), C2C (Consumer to Consumer, interindividual ecommerce) E-commerce market, investment securities; The rise of Digital Media communication sphere will become the new lover of consumer electronics market in the near future.For example the MID panel computer is exactly a typical application of MID system, from the desktop computer to the notebook, again from notebook to the MID panel computer, it is more and more portable that computer becomes, human work, living and studying mode are changing.The MID panel computer only weighs 420 grams (containing battery), is equivalent to hundred yuans of sizes after closing, and solves the heavy shortcoming of notebook.Concerning the business people who travels outdoors, goes on business, palmtop PC is more portable, can carry, and not think and the sense of bearing a heavy burden will become business people's necessary tool.Because the portable characteristics of MID system, battery becomes a key factors that influences its use.
Moreover the application of MID is a lot, and some application need equipment has permanent flying power, and this just requires MID on power consumption and battery capacity, to do deep research, so that prolong its service time in the service of moving.
Summary of the invention
The technical problem that the present invention will solve is to be used for the short defective of MID device battery flying power in the prior art in order to overcome, and provides a kind of MID of being used for equipment to have the double cell power supply circuits of longer flying power.
The present invention solves above-mentioned technical problem through following technical proposals:
A kind of double cell power supply circuits, it comprises adapter and two batteries, its characteristics are that these double cell power supply circuits also comprise:
Charging control circuit, the charging and the charging between two batteries that are used for controlling respectively two batteries are switched;
Power-supplying circuit is used for controlling respectively two batteries the power supply and the power supply between two batteries of load is switched;
The electric weight comparison circuit is used for the height of comparison two battery electric quantities;
Wherein, this charging control circuit links to each other with this adapter, electric weight comparison circuit and two batteries respectively, and this electric weight comparison circuit links to each other with two batteries respectively, and this power-supplying circuit links to each other with two batteries respectively.
Preferably, this electric weight comparison circuit is a comparator, and the in-phase input end of this comparator links to each other with two batteries respectively with inverting input, and the output of this comparator is connected to the input of this charging control circuit.
Preferably, this charging control circuit comprises to the charging circuit of two battery charge and the charging commutation circuit that is used for the charging switching between two batteries.
Preferably, this charging circuit comprises a charge management module, is used for monitoring and adjustment to the charged state of each battery; One d type flip flop; One selector and one and the door and a plurality of not gate, wherein, the input of this charge management module is connected with adapter; First output of this charge management module is connected with the first input end of door with one; Second output of this charge management module passes through first not gate and should be connected with second input of door, should be connected to the selecting side of this selector with the output of door, and the first input end of this selector is connected with the trigger end of this d type flip flop; Second input of this selector is connected with the trigger end of this d type flip flop through a not gate, and the data terminal of this d type flip flop is connected with the output of this comparator.
Preferably; This charging commutation circuit comprises first switching tube and second switch pipe; The grid of this first switching tube links to each other with the grid of this second switch pipe through a not gate; The source electrode of the source electrode of this first switching tube and second switch pipe all links to each other with this charge management module, and the drain electrode of the drain electrode of this first switching tube and second switch pipe links to each other with two batteries respectively.
Preferably, this power-supplying circuit comprise two batteries respectively powering load power supply circuits and be used for the power supply commutation circuit that the power supply between two batteries is switched.
Preferably, these power supply circuits comprise the 3rd switching tube.
Preferably; This power supply commutation circuit comprises the 4th switching tube and the 5th switching tube; Wherein, The grid of the grid of the 4th switching tube and the 5th switching tube links to each other through a not gate, and the drain electrode of the drain electrode of the 4th switching tube and the 5th switching tube links to each other with the source electrode of the 3rd switching tube, and the source electrode of the source electrode of the 4th switching tube and the 5th switching tube links to each other with two batteries respectively.
Preferably; These double cell power supply circuits also comprise one or the door; Should or the output of door be connected to the rising edge latch information end of this d type flip flop; Should or the first input end of door be connected to the power end of comparator through a switch, should or second input of door and the 3rd input respectively through a grounding through resistance.
Preferably, these double cell power supply circuits also comprise a synchronous step-down controller, and this synchronous buck converter is connected with this adapter, and through diode output.
Positive progressive effect of the present invention is: the structure that adopts double cell is to increase the flying power of MID equipment; Automatically selecting by the higher battery of electric weight when supplying power simultaneously is the MID power devices; Automatically be chosen as the lower battery charge of electric weight during charging, even and adapter when inserting start because the current supply circuit of battery and back-end system has been blocked in the effect of switching tube, the situation that battery promptly charges and discharges can not take place; Improve the fail safe of circuit, ensured the useful life of battery.
Description of drawings
Fig. 1 is the structured flowchart of double cell power supply circuits of the present invention.
Fig. 2 is the circuit diagram that double cell power supply circuits of the present invention are given battery 2 chargings.
Fig. 3 is the circuit diagram that double cell power supply circuits of the present invention are given battery 1 charging.
Fig. 4 is that double cell power supply circuits of the present invention are given battery 1 circuit diagram of power supply separately.
Fig. 5 is that double cell power supply circuits of the present invention are given battery 2 circuit diagram of power supply separately.
Fig. 6 is the circuit diagram that double cell power supply circuits of the present invention are given the power supply of battery 2 charging adapters.
Fig. 7 is the circuit diagram that double cell power supply circuits of the present invention are given the power supply of battery 1 charging adapter.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
With reference to figure 1, be the structured flowchart of double cell power supply circuits of the present invention.Double cell power supply circuits of the present invention, it comprises adapter 1 and two batteries 31 and 32, these double cell power supply circuits also comprise: charging control circuit 4, the charging and the charging between two batteries that are used for controlling respectively two batteries are switched; Power-supplying circuit 5 is used for controlling respectively two batteries the power supply and the power supply between two batteries of load is switched; Electric weight comparison circuit 2 is used for the height of comparison two battery electric quantities; Wherein, this charging control circuit 4 links to each other with this adapter 1, electric weight comparison circuit 2 and two batteries 31,32 respectively, and this electric weight comparison circuit 2 links to each other with two batteries 31,32 respectively, and this power-supplying circuit 5 links to each other with two batteries 31,32 respectively.With reference to figure 2-Fig. 3, preferably, this electric weight comparison circuit 2 is a comparator, and the in-phase input end of this comparator links to each other with two batteries respectively with inverting input, and the output of this comparator is connected to the input of this charging control circuit 4.Particularly, this charging control circuit 4 comprises to the charging circuit 41 of two battery charge and the charging commutation circuit 42 that is used for the charging switching between two batteries.Particularly, this power-supplying circuit 5 comprise two batteries respectively powering load power supply circuits 51 and be used for the power supply commutation circuit 52 that the power supply between two batteries is switched.More specifically, this charging circuit 41 comprises a charge management module, adopts the BQ24080 charging management chip in the present embodiment; After battery charge was accomplished, its output pin STAT1 was 1, and output pin STAT2 is 0; This charge management module is used for the monitoring of the charged state of each battery and adjustment, and those skilled in the art also can select other chips, a d type flip flop according to actual needs; Select the d type flip flop of NC7SZ74K8X in the present embodiment for use; Pin CLK is a rising edge latch information end, a selector and one and the door with a plurality of not gate, in the present embodiment selection NLS3158 as selector; Wherein, The input of this charge management module is connected with adapter 1, and the first output STAT1 of this charge management module is connected with the first input end of door NC7SZ08P5X with one, and the second output STAT2 of this charge management module passes through first not gate and should be connected with second input of door NC7SZ08P5X; Should be connected to the selecting side SEL of this selector with the output of door NC7SZ08P5X; The first input end I1 of this selector is connected with the trigger end Q of this d type flip flop, and the second input I0 of this selector is connected with the trigger end Q of this d type flip flop through a not gate, and the data terminal D of this d type flip flop is connected with the output of this comparator.Preferably; This charging commutation circuit comprises the first switching tube MOS1 and second switch pipe MOS2; The grid of this first switching tube links to each other with the grid of this second switch pipe through a not gate; The source electrode of the source electrode of this first switching tube and second switch pipe all links to each other with this charge management module, and the drain electrode of the drain electrode of this first switching tube and second switch pipe links to each other with two batteries respectively.Preferably, these power supply circuits comprise the 3rd switching tube MOS5.Preferably; This power supply commutation circuit comprises the 4th switching tube MOS3 and the 5th switching tube MOS4; Wherein, The grid of the grid of the 4th switching tube and the 5th switching tube links to each other through a not gate, and the drain electrode of the drain electrode of the 4th switching tube and the 5th switching tube links to each other with the source electrode of the 3rd switching tube, and the source electrode of the source electrode of the 4th switching tube and the 5th switching tube links to each other with two batteries respectively.In the present embodiment with door NC7SZ08P5X, accomplish the back in battery charge and export high level, output low level during the battery underfill.Selector NLS3158 is used to select the battery that charges.
Preferably; These double cell power supply circuits also comprise one or the door; Should or the output of door be connected to the rising edge latch information end CLK of this d type flip flop; Should or the first input end of door be connected to the power end of comparator through a switch, should or second input of door and the 3rd input respectively through a grounding through resistance.
More preferably; These double cell power supply circuits also comprise a synchronous step-down controller DC/DC; This synchronous buck converter is connected with this adapter; And through diode output, adopting model in the present embodiment is the synchronous buck converter of MP8708, and those skilled in the art also can select other known synchronous buck converters as required.
With reference to figure 2-Fig. 5, introduce the working method of double cell power supply circuits according to the invention.
1, adapter inserts, the system closedown state, and VBAT1＞VBAT2 charge circuit such as Fig. 2:
Comparator is often supplied power, and battery 1 electric weight is battery 2 chargings greater than battery 2, and then node A=0 is a low level; When inserting adapter, the B point produces rising edge, the signal latch of A=0 is lived, thereby node C=0 is a low level; Because D=0, thereby the signal of selector MUX output I0, so E=/C=1 is high level, through behind the door non-; The G utmost point=0 of second switch pipe MOS2, the S of MOS2 is the overcharge voltage of chip of charger very, in the 4.5V-5V scope; Thereby VGS＜0, second switch pipe MOS2 conducting, the current trend of charge circuit marks with arrow in Fig. 2.After battery 2 chargings are accomplished, the output STAT1=1 of charge management module, STAT2=0, node D=1, selector MUX select I1 as output, then node E=C=0.Like this, the first switching tube MOS1 conducting begins to be battery 1 charging.The charging path switches to the first switching tube MOS1 from second switch pipe MOS2.
2, adapter inserts, the system closedown state, and VBAT1＜VBAT2 charge circuit such as Fig. 3:
Comparator is often supplied power, and battery 1 electric weight is battery 1 charging, then node A=1 less than battery 2; When inserting adapter, the B point produces rising edge, the signal latch of A=1 is lived, thereby node C=1; Because node D=0, thereby the signal of selector MUX output I0, so node E=/C=0 are through behind the door non-; The S of the G utmost point of the first switching tube MOS1=0, the first switching tube MOS1 is the overcharge voltage of chip of charger very, in the 4.5V-5V scope; Thereby VGS＜0, the first switching tube MOS1 conducting, charge circuit marks with arrow in Fig. 3.After battery 1 charging is accomplished, the output STAT1=1 of charge management module, output STAT2=0, node D=1, selector MUX select I1 as output, node E=C=1.Second switch pipe MOS2 conducting like this begins to be battery 2 chargings.The charging path switches to MOS2 from MOS1.
Start when 3, adapter does not insert, VBAT1＞VBAT2
Start shooting under the situation of no adapter, then need battery, the electric weight of the electricity ratio battery 2 of battery 1 is sufficient; Then system is with battery 1 power supply, and the concrete condition state analysis is following: VBAT1＞VBAT2, comparator output low level node A=0; After pressing the start key, this state is latched, thereby C=A=0; Can find VGS＜0, the four switching tube MOS3 conducting of the 4th switching tube MOS3, because adapter does not insert; Node F=0, the 3rd switching tube MOS5 conducting has just formed complete current supply circuit between battery 1 and the MID system like this.Current supply circuit marks with arrow in Fig. 4.
After the state of system discovery battery 1 was lower than alarm voltage, system sampled to the voltage of battery 1 and battery 2, meets the powering quantity requirement as if battery 2, i.e. node A=1.Master control AP then, AP_CTRL goes out to export high level, present comparator output A=1 latched, thus C=A=1, this moment, the 4th switching tube MOS3 closed, the 5th switching tube MOS4 conducting, current supply circuit switches to battery 2 from battery 1.
Start when 4, adapter does not insert, VBAT1＜VBAT2
Start shooting under the situation of no adapter, then need battery, the electric weight of the electricity ratio battery 1 of battery 2 is sufficient; Then system is with battery 2 power supplies, and the concrete condition state analysis is following: VBAT1＜VBAT2, comparator output high level A=1; After pressing the start key, this state is latched, thereby node C=A=1; Can find VGS＜0, the five switching tube MOS4 conducting of the 5th switching tube MOS4, because adapter does not insert; Node F=0, the 3rd switching tube MOS5 conducting has just formed complete current supply circuit like this between battery 2 and the system.Current supply circuit marks with arrow in Fig. 5.
After the state of system discovery battery 2 was lower than alarm voltage, system sampled to the voltage of battery 1 and battery 2, meets the powering quantity requirement as if battery 1, i.e. node A=0.Master control AP then, AP_CTRL goes out to export high level, present comparator output A=0 latched, thus C=A=0, this moment, the 5th switching tube MOS4 closed, the 4th switching tube MOS3 conducting, current supply circuit switches to battery 1 from battery 2.
Start when 5, adapter inserts, two kinds are charged and current supply circuit such as Fig. 6, shown in Figure 7
The charging principle is to be earlier the battery charge of low electric weight, when adapter inserts, and F=1, the VGS=0 of the 3rd switching tube MOS5, thus having blocked the current supply circuit of battery and back-end system, system has adapter to pass through synchronous buck converter DCDC to supply power.Thereby the incident that battery promptly charges and discharges, the reliability that the system of assurance discharges and recharges can not take place.Basically identical when charge circuit and off-mode, the only whole synchronous buck converter DCDC supply access that added, concrete path such as Fig. 6 are shown in Figure 7.Shown in Figure 6, insert the situation of adapter start during for VBAT1＞VBAT2, arrow has marked current supply circuit and charge circuit, and this moment, the 3rd switching tube MOS5 turn-offed, and represented its shutoff with " fork " among Fig. 6.Shown in Figure 7, insert the situation of adapter start during for VBAT1＜VBAT2, arrow has marked current supply circuit and charge circuit, and this moment, the 3rd switching tube MOS5 turn-offed, and represented its shutoff with " fork " among Fig. 7.The charge condition of battery is same as described above, does not make repeated description at this, and power supply is directly given the power supply of MID system by adapter through synchronous buck converter.
Present embodiment adopts discrete devices to control two batteries and discharges and recharges, and those skilled in the art can select for use low-cost FPGA to realize the function of above digital circuit, also help to improve the reliability of circuit.
Though more than described embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. double cell power supply circuits, it comprises adapter and two batteries, it is characterized in that, these double cell power supply circuits also comprise:
Charging control circuit, the charging and the charging between two batteries that are used for controlling respectively two batteries are switched;
Power-supplying circuit is used for controlling respectively two batteries the power supply and the power supply between two batteries of load is switched;
The electric weight comparison circuit is used for the height of comparison two battery electric quantities;
Wherein, this charging control circuit links to each other with this adapter, electric weight comparison circuit and two batteries respectively, and this electric weight comparison circuit links to each other with two batteries respectively, and this power-supplying circuit links to each other with two batteries respectively.
2. double cell power supply circuits as claimed in claim 1; It is characterized in that; This electric weight comparison circuit is a comparator, and the in-phase input end of this comparator links to each other with two batteries respectively with inverting input, and the output of this comparator is connected to the input of this charging control circuit.
3. double cell power supply circuits as claimed in claim 2 is characterized in that, this charging control circuit comprises to the charging circuit of two battery charge and is used for the charging commutation circuit that the charging between two batteries is switched.
4. double cell power supply circuits as claimed in claim 3 is characterized in that this charging circuit comprises a charge management module; Be used for monitoring and adjustment to the charged state of each battery, a d type flip flop, a selector and one and the door and a plurality of not gate; Wherein, The input of this charge management module is connected with adapter, and first output of this charge management module is connected with the first input end of door with one, and second output of this charge management module passes through first not gate and should be connected with second input of door; Should be connected to the selecting side of this selector with the output of door; The first input end of this selector is connected with the trigger end of this d type flip flop, and second input of this selector is connected with the trigger end of this d type flip flop through a not gate, and the data terminal of this d type flip flop is connected with the output of this comparator.
5. double cell power supply circuits as claimed in claim 4; It is characterized in that; This charging commutation circuit comprises first switching tube and second switch pipe; The grid of this first switching tube links to each other with the grid of this second switch pipe through a not gate, and the source electrode of the source electrode of this first switching tube and second switch pipe all links to each other with this charge management module, and the drain electrode of the drain electrode of this first switching tube and second switch pipe links to each other with two batteries respectively.
6. double cell power supply circuits as claimed in claim 5 is characterized in that, this power-supplying circuit comprise two batteries respectively powering load power supply circuits and be used for the power supply commutation circuit that the power supply between two batteries is switched.
7. double cell power supply circuits as claimed in claim 6 is characterized in that these power supply circuits comprise the 3rd switching tube.
8. double cell power supply circuits as claimed in claim 7; It is characterized in that; This power supply commutation circuit comprises the 4th switching tube and the 5th switching tube, and wherein, the grid of the grid of the 4th switching tube and the 5th switching tube links to each other through a not gate; The drain electrode of the drain electrode of the 4th switching tube and the 5th switching tube links to each other with the source electrode of the 3rd switching tube, and the source electrode of the source electrode of the 4th switching tube and the 5th switching tube links to each other with two batteries respectively.
9. double cell power supply circuits as claimed in claim 8; It is characterized in that; These double cell power supply circuits also comprise one or the door; Should or the output of door be connected to the rising edge latch information end of this d type flip flop, should or the first input end of door be connected to the power end of comparator through a switch, should or second input of door and the 3rd input respectively through a grounding through resistance.
10. double cell power supply circuits as claimed in claim 9 is characterized in that, these double cell power supply circuits also comprise a synchronous step-down controller, and this synchronous buck converter is connected with this adapter, and through diode output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102294406A CN102340169A (en) | 2010-07-16 | 2010-07-16 | Double battery power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102294406A CN102340169A (en) | 2010-07-16 | 2010-07-16 | Double battery power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102340169A true CN102340169A (en) | 2012-02-01 |
Family
ID=45515740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102294406A Pending CN102340169A (en) | 2010-07-16 | 2010-07-16 | Double battery power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102340169A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296744A (en) * | 2012-02-22 | 2013-09-11 | 叶继伦 | Power source for medical equipment and power supply method for same |
| CN103428316A (en) * | 2012-05-15 | 2013-12-04 | Lg电子株式会社 | Mobile terminal and apparatus for molding battery equipped therein |
| CN104300648A (en) * | 2014-11-04 | 2015-01-21 | 徐叶 | Electric vehicle running control system |
| CN104348252A (en) * | 2013-08-05 | 2015-02-11 | 北京精密机电控制设备研究所 | Three-power-supply redundancy power supplying device and portable device |
| CN104617657A (en) * | 2015-01-23 | 2015-05-13 | 深圳市科曼医疗设备有限公司 | Power management system of defibrillator |
| CN104917285A (en) * | 2014-03-13 | 2015-09-16 | 恩智浦有限公司 | Power management circuit and a method for operating a power management circuit |
| CN105356561A (en) * | 2015-12-15 | 2016-02-24 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Dual-battery charging-discharging system and method |
| CN105634055A (en) * | 2015-12-30 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Charging control method and charging control device of mobile terminal and mobile terminal |
| CN106532811A (en) * | 2016-10-28 | 2017-03-22 | 合肥联宝信息技术有限公司 | Multi-battery charging and discharging switching method and apparatus, battery circuit and multi-battery system |
| CN108242848A (en) * | 2016-12-27 | 2018-07-03 | 中国船舶重工集团公司七五〇试验场 | A kind of uninterrupted power supply device |
| CN109193830A (en) * | 2018-09-07 | 2019-01-11 | 杭州电子科技大学 | A kind of battery of mobile phone method of supplying power to |
| CN109586393A (en) * | 2019-01-22 | 2019-04-05 | 北京汇能精电科技股份有限公司 | Double-battery charge electric installation and system |
| CN109742841A (en) * | 2019-01-17 | 2019-05-10 | 上海华测导航技术股份有限公司 | A kind of unmanned boat Double-battery powered circuit |
| CN110854939A (en) * | 2018-08-20 | 2020-02-28 | 中兴通讯股份有限公司 | Method for charging double batteries, electronic device and storage medium |
| CN111756106A (en) * | 2019-09-20 | 2020-10-09 | 广州极飞科技有限公司 | Power supply device and system |
| CN112158106A (en) * | 2020-10-26 | 2021-01-01 | 合肥工业大学 | Charging control circuit of electric automobile with double battery systems and control method thereof |
| CN112713642A (en) * | 2019-10-24 | 2021-04-27 | 成都鼎桥通信技术有限公司 | Power supply detection switching control circuit |
| CN112737044A (en) * | 2020-12-31 | 2021-04-30 | 北京谊安医疗系统股份有限公司 | Double-battery switching circuit |
-
2010
- 2010-07-16 CN CN2010102294406A patent/CN102340169A/en active Pending
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296744A (en) * | 2012-02-22 | 2013-09-11 | 叶继伦 | Power source for medical equipment and power supply method for same |
| CN103296744B (en) * | 2012-02-22 | 2015-08-19 | 叶继伦 | A kind of power supply for Medical Devices and method of supplying power to |
| US9192072B2 (en) | 2012-05-15 | 2015-11-17 | Lg Electronics Inc. | Curved mobile terminal with curved battery |
| CN103428316A (en) * | 2012-05-15 | 2013-12-04 | Lg电子株式会社 | Mobile terminal and apparatus for molding battery equipped therein |
| CN103428316B (en) * | 2012-05-15 | 2017-04-26 | Lg电子株式会社 | Mobile terminal and apparatus for molding battery equipped therein |
| CN104348252A (en) * | 2013-08-05 | 2015-02-11 | 北京精密机电控制设备研究所 | Three-power-supply redundancy power supplying device and portable device |
| CN104917285B (en) * | 2014-03-13 | 2018-04-24 | 恩智浦有限公司 | Power management circuit and the method for operational power management circuit |
| CN104917285A (en) * | 2014-03-13 | 2015-09-16 | 恩智浦有限公司 | Power management circuit and a method for operating a power management circuit |
| US9647456B2 (en) | 2014-03-13 | 2017-05-09 | Nxp B.V. | Power management circuit and a method for operating a power management circuit |
| CN104300648B (en) * | 2014-11-04 | 2016-09-14 | 徐叶 | A kind of electric motor car operation control system |
| CN104300648A (en) * | 2014-11-04 | 2015-01-21 | 徐叶 | Electric vehicle running control system |
| CN104617657A (en) * | 2015-01-23 | 2015-05-13 | 深圳市科曼医疗设备有限公司 | Power management system of defibrillator |
| CN105356561A (en) * | 2015-12-15 | 2016-02-24 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Dual-battery charging-discharging system and method |
| CN105634055A (en) * | 2015-12-30 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Charging control method and charging control device of mobile terminal and mobile terminal |
| CN106532811A (en) * | 2016-10-28 | 2017-03-22 | 合肥联宝信息技术有限公司 | Multi-battery charging and discharging switching method and apparatus, battery circuit and multi-battery system |
| CN108242848A (en) * | 2016-12-27 | 2018-07-03 | 中国船舶重工集团公司七五〇试验场 | A kind of uninterrupted power supply device |
| CN110854939B (en) * | 2018-08-20 | 2021-01-01 | 中兴通讯股份有限公司 | Method for charging double batteries, electronic device and storage medium |
| CN110854939A (en) * | 2018-08-20 | 2020-02-28 | 中兴通讯股份有限公司 | Method for charging double batteries, electronic device and storage medium |
| CN109193830A (en) * | 2018-09-07 | 2019-01-11 | 杭州电子科技大学 | A kind of battery of mobile phone method of supplying power to |
| CN109742841A (en) * | 2019-01-17 | 2019-05-10 | 上海华测导航技术股份有限公司 | A kind of unmanned boat Double-battery powered circuit |
| CN109742841B (en) * | 2019-01-17 | 2022-11-22 | 上海华测导航技术股份有限公司 | Unmanned ship double-battery power supply circuit |
| CN109586393A (en) * | 2019-01-22 | 2019-04-05 | 北京汇能精电科技股份有限公司 | Double-battery charge electric installation and system |
| CN111756106A (en) * | 2019-09-20 | 2020-10-09 | 广州极飞科技有限公司 | Power supply device and system |
| CN112713642A (en) * | 2019-10-24 | 2021-04-27 | 成都鼎桥通信技术有限公司 | Power supply detection switching control circuit |
| CN112713642B (en) * | 2019-10-24 | 2023-02-17 | 成都鼎桥通信技术有限公司 | Power supply detection switching control circuit |
| CN112158106A (en) * | 2020-10-26 | 2021-01-01 | 合肥工业大学 | Charging control circuit of electric automobile with double battery systems and control method thereof |
| CN112158106B (en) * | 2020-10-26 | 2022-02-01 | 合肥工业大学 | Charging control circuit of electric automobile with double battery systems and control method thereof |
| CN112737044A (en) * | 2020-12-31 | 2021-04-30 | 北京谊安医疗系统股份有限公司 | Double-battery switching circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102340169A (en) | Double battery power supply circuit | |
| CN201726197U (en) | Double-battery power supply circuit | |
| US9013148B2 (en) | Lithium-ion battery pack and method of charge/discharge equalizing | |
| CN101355258B (en) | Method and apparatus for charging batteries | |
| KR101677679B1 (en) | Power management circuit for rechargeable battery stack | |
| CN202363960U (en) | Double-battery power supply device | |
| CN202712892U (en) | Battery management system and load detection circuit thereof | |
| US9136715B2 (en) | Rechargeable battery pack and method of charge/discharge equalizing | |
| CN203800642U (en) | Charging Po and charging system | |
| CN204231004U (en) | Power control circuit | |
| CN101814756B (en) | Constant-current and constant-voltage control circuit, charging circuit and charger | |
| CN104849536B (en) | It is a kind of be applied to can serial lithium battery group protection chip detection circuit | |
| CN102222949A (en) | Device and method for managing batteries | |
| CN105052001A (en) | Method and apparatus for improving cycle life capacity of a battery pack | |
| CN204316150U (en) | A kind of circuit extending series-connected batteries useful life | |
| CN202218050U (en) | Dual-battery charging-discharging management circuit | |
| CN105356561B (en) | Double-battery charge discharge system and method | |
| CN1949620A (en) | Power managing system with multi-charging modes | |
| CN103403643B (en) | Management of charging and discharging device and mobile terminal | |
| CN202564995U (en) | Multichannel battery pack charge-discharge control device | |
| Chiu et al. | Design and implementation of a high‐efficiency bidirectional DC‐DC Converter for DC micro‐grid system applications | |
| KR101207049B1 (en) | Charging apparatus and method for portable electronic device | |
| CN201222649Y (en) | Overdischarging protection circuit capable of charging battery | |
| CN103208836A (en) | Outdoor solar lithium battery energy storage device | |
| CN106571496B (en) | Scalable modularization power battery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |
|
| WD01 | Invention patent application deemed withdrawn after publication |