CN202218050U - Dual-battery charging-discharging management circuit - Google Patents
Dual-battery charging-discharging management circuit Download PDFInfo
- Publication number
- CN202218050U CN202218050U CN201120374709XU CN201120374709U CN202218050U CN 202218050 U CN202218050 U CN 202218050U CN 201120374709X U CN201120374709X U CN 201120374709XU CN 201120374709 U CN201120374709 U CN 201120374709U CN 202218050 U CN202218050 U CN 202218050U
- Authority
- CN
- China
- Prior art keywords
- charging
- pin
- ltc4413
- chip
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to a dual-battery charging-discharging management circuit, comprising a power supply input interface for receiving a charging power supply, a charging module for performing charging management to batteries, a charging switching-over module and a discharging switching-over module, wherein the power supply input interface is connected with the charging module which is connected with the charging switching-over module, the charging switching-over module is connected with the discharging switching-over module, the charging switching-over module is used for connecting two batteries simultaneously and can select one battery with lower voltage to be connected with the charging module when the charging power supply is input, the discharging switching-over module is used for connecting two batteries simultaneously and can select one battery with higher voltage to be connected with a load when the load is connected. As the charging switching-over module and the discharging switching-over module are additionally arranged in a common charging-discharging mode, the charging and discharging management to two batteries can be realized.
Description
[technical field]
The utility model relates to the battery charging and discharging management circuit, relates in particular to a kind of double cell management of charging and discharging circuit.
[background technology]
Development along with 21 century microelectric technique; The equipment of miniaturization is increasing, and the functional intellectualization degree of equipment is increasingly high, and is also more and more to the demand of power supply; But the battery capacity that fuselage has is difficult to meet the demands; Particularly in the handheld device of some industries such as logistics, traffic, storage, owing to work long hours, the battery of single fuselage has been difficult to meet the demands; At this moment just need the equipment handle or outside hang up and increase the demand that a battery satisfies high capacity cell, therefore the management of charging and discharging problem of two batteries can appear.
[utility model content]
Based on this, be necessary to provide a kind of circuit that double cell is discharged and recharged in turn.
A kind of double cell management of charging and discharging circuit, said double cell management of charging and discharging circuit comprise the power input interface that receives charge power supply, battery are carried out charging module, charging handover module and the discharge handover module of Charge Management;
Said power input interface links to each other with charging module; Said charging module links to each other with the charging handover module; Said charging handover module links to each other with the discharge handover module; Said charging handover module is used for linking to each other with two Battery packs simultaneously and when the input charge power supply, selecting the lower Battery pack of voltage to be connected with charging module, and said discharge handover module is used for linking to each other with said two Battery packs simultaneously and when being connected load, selecting the higher Battery pack of voltage to be connected with load.
Preferably, said power input interface is the DC power supply input interface.
Preferably, said charging handover module comprises chip LTC4413-1, and wherein: the pin INA that said chip LTC4413-1 is used to import power supply links to each other with the output of charging module with pin INB, receives the charge power supply from charging module;
Said chip LTC4413-1 is used to export the pin OUTA of main charging voltage, the pin OUTB that is used to export from charging voltage links to each other with a Battery pack respectively;
Said chip LTC4413-1 is used to control pin ENBA, the ground wire GND of input pin INA operate as normal, the pin ENBB ground connection that is used to control input pin INB operate as normal.
Preferably; Being used to of said chip LTC4413-1 indicates the pin STAT of charging voltage output state to link to each other with resistance; Said resistance links to each other with power supply, and said pin STAT just shows the battery that is recharged according to current potential, when said pin STAT is high potential; The control indicator light is bright, and expression pin OUTA is exporting main charging voltage.
Preferably, said discharge handover module comprises chip LTC4413-1, wherein: the pin INA that is used for the input load main power source of said chip LTC4413-1 be used for the pin INB of input load and link to each other with a Battery pack of said two Battery packs respectively from power supply;
Pin OUTA, pin OUTB that said chip LTC4413-1 is used for output loading voltage link to each other with load;
Said chip LTC4413-1 be used to control the pin INA operate as normal of input load main power source pin ENBA, be used to control pin ENBB and the ground wire GND ground connection of input load from the pin INB operate as normal of power supply.
Preferably; The pin STAT zero load that is used to indicate the discharge power supply output state of said chip LTC4413-1; Said pin STAT just shows the battery that is discharged according to current potential; When said pin STAT was high potential, the control indicator light was bright, and a Battery pack of expression output loading main power source is discharged.
Above-mentioned double cell management of charging and discharging circuit comprises power input interface, charging module, charging handover module and discharge handover module.In charging process, realize Charge Management through the charging handover module to two batteries, and the preferential battery charge low to voltage; In discharge process, realize discharge management through the discharge handover module to two batteries, and the preferential battery discharge high to voltage.Owing on the common pattern that discharges and recharges, increased charging handover module and discharge handover module, therefore can realize the management of charging and discharging of two batteries.
[description of drawings]
Fig. 1 is the structure chart of double cell management of charging and discharging circuit;
Fig. 2 is the internal circuit schematic diagram of charging module among the embodiment;
Fig. 3 is the internal circuit schematic diagram of charging handover module;
Fig. 4 is the external pin figure of chip LTC4413-2;
Fig. 5 is the internal circuit schematic diagram of discharge handover module.
[embodiment]
As shown in Figure 1, be the structure chart of double cell management of charging and discharging circuit 100.Double cell management of charging and discharging circuit 100 comprises the power input interface 110 that receives charge power supply, battery is carried out charging module 120, charging handover module 130 and the discharge handover module 140 of Charge Management.
In the present embodiment, power input interface 110 is the DC power supply input interface.
In the present embodiment, as shown in Figure 2, the internal circuit schematic diagram of charging module is a typical single battery charge management circuit, can select different chips to realize according to the actual different demands of charging current, charging voltage and the cost of reality.
In the present embodiment; As shown in Figure 3; Internal circuit schematic diagram for charging handover module 130; Charging handover module 130 comprises chip LTC4413-1, and the pin INA that chip LTC4413-1 is used to import power supply links to each other with the output of charging module with pin INB, and reception is from the charge power supply of charging module 120.Be used to export the pin OUTA of main charging voltage, the pin OUTB that is used to export from charging voltage links to each other with a Battery pack respectively, is used to control pin ENBA, the ground wire GND of input pin INA operate as normal, the pin ENBB ground connection all that is used to control input pin INB operate as normal.
In a preferred embodiment, the mode bit pin STAT of chip LTC4413-1 links to each other with resistance, and resistance links to each other with power supply, and mode bit pin STAT just shows the battery that is recharged according to current potential.The user can learn the battery that is being recharged according to the outside demonstration.When pin STAT was high potential, the control indicator light was bright, and expression pin OUTA is exporting main charging voltage.
Be appreciated that charging handover module 130 except that adopting above-mentioned chip, can also adopt other modes to realize, for example adopt and the intimate chip LTC4413-2 of chip LTC4413-1.As shown in Figure 4; The external pin of the external pin of chip LTC4413-2 and chip LTC4413-1 is basic identical; When adopting chip LTC4413-2 to realize that charging is switched, the connected mode the when connected mode of its external pin realizes that with employing chip LTC4413-1 charging is switched is consistent.
Chip LTC4413-1 and chip LTC4413-2 can directly be called binary channels ideal diode LTC4413.Binary channels ideal diode LTC4413 is especially to reducing heat, pressure drop and accounting for the plate area and prolongation battery service time and designing.This device needing to be highly suitable for the OR function of ideal diode to realize the application of automaticallying switch between load Sharing or two input power supplys.Through being equipped with a plurality of smart circuits, LTC4413 can control (allowing the adjustment switched voltage) to the use of each ideal diode, and indicates the whether conducting of selected ideal diode.It also has current limliting and overtemperature protection and protection device and avoids the slow turn-off function that due to voltage spikes destroys.Permission is that every passage provides the electric current up to 2.6A when 2.5V～5.5V imports power supply.LTC4413 has the low forward voltage of 80mV and 210mV respectively when 500mA and 2A, Leakage Current is merely 1 μ A, than discrete diode " or " solution has very big improvement.LTC4413 is especially to hand-held product, has USB interface or has the system of battery and design.
LTC4413 contains the P-channel field-effect transistor (PEFT) pipe of two 100m Ω.Output current is during up to 1A, and quiescent current is lower than 40 μ A.If one of them in two output voltages surpasses its input voltage, this FET just is turned off; The reverse current that is lower than 1 μ A will flow to input from output.The maximum forward current value of each FET is limited in constant 2.6A.Internal current is limited in circuit can be protected device when breaking down 9 μ A.Open-drain STAT pin is indicated the conducting state of selected passage, and can be used for driving outside P-channel field-effect transistor (PEFT) pipe to control the 3rd stand-by power supply.
LTC4413 nominal operation temperature range is-40 ℃～85 ℃, adopts 10 lead packages.Its performance summary is following: the binary channels ideal diode " or " load Sharing, for " or " diode provides a low-loss replacement scheme, when 3.6V, has 100m Ω low forward conduction resistance, low reverse leakage current, stable 28mV low forward voltage.
In the present embodiment; As shown in Figure 4; Internal circuit schematic diagram for discharge handover module 140; Discharge handover module 140 comprises chip LTC4413-1; The pin INA that is used for the input load main power source of chip LTC4413-1 be used for input load and link to each other with a Battery pack of two groups respectively from the pin INB of power supply, the pin OUTA, the pin OUTB that are used for output loading voltage link to each other with load, be used to control the pin INA operate as normal of input load main power source pin ENBA, be used to control pin ENBB and the ground wire GND ground connection of input load from the pin INB operate as normal of power supply.
In a preferred embodiment, chip LTC4413-1 mode bit pin STAT is unloaded, and mode bit pin STAT just shows the battery that is discharged according to current potential.The user can learn the battery that is being discharged according to the outside demonstration.When pin STAT was high potential, the control indicator light was bright, and a Battery pack of expression output loading main power source is discharged.
Based on the similar principle of charging handover module 130, discharge handover module 140 removes and adopts the above-mentioned chip, can also adopt other modes to realize, for example adopts and the intimate chip LTC4413-2 of chip LTC4413-1.The external pin of the external pin of chip LTC4413-2 and chip LTC4413-1 is basic identical, and when adopting chip LTC4413-2 to realize that discharge is switched, the connected mode the when connected mode of its external pin realizes that with employing chip LTC4413-1 discharge is switched is consistent.
In the present embodiment; When two batteries are charged; Receive external power source through power input interface 110,120 pairs of battery charge of charging module, charging handover module 130 can be selected to link to each other with the low battery of voltage according to the voltage of battery; Make 120 pairs of low battery charge of voltage of charging module, and externally show the battery that is recharged.When the battery charge that is recharged was accomplished, the handover module 130 that charges can break off with charging accomplished being connected of battery, and does not have being connected of charging with another, and it is charged, and shows that externally this battery is recharged simultaneously.
In the present embodiment, two batteries are during to external load discharge, and battery links to each other with discharge handover module 140, and discharge handover module 140 can be according to the high battery of the voltage selection voltage of battery load discharge to external world, and externally shows the battery that is discharged.When being hanged down to rated value by the voltage of discharge battery; The 140 meeting disconnections of discharge handover module are connected with the battery that discharges into rated value; And do not have the battery of discharge to be connected with another, and let this battery to external load discharge, show that externally this battery is discharged simultaneously.
Above-mentioned double cell management of charging and discharging circuit comprises power input interface 110, charging module 120, charging handover module 130 and discharge handover module 140.In charging process, through the Charge Management of charging handover module 130 realizations to two batteries, and the preferential battery charge low to voltage; In discharge process, realize discharge management through discharge handover module 140 to two batteries, and the preferential battery discharge high to voltage.Owing on the common pattern that discharges and recharges, increased charging handover module 130 and discharge handover module 140, therefore can realize the management of charging and discharging of two batteries.
The above embodiment has only expressed several kinds of execution modes of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.
Claims (6)
1. a double cell management of charging and discharging circuit is characterized in that, said double cell management of charging and discharging circuit comprises the power input interface that receives charge power supply, battery carried out charging module, charging handover module and the discharge handover module of Charge Management;
Said power input interface links to each other with charging module; Said charging module links to each other with the charging handover module; Said charging handover module links to each other with the discharge handover module; Said charging handover module is used for linking to each other with two Battery packs simultaneously and when the input charge power supply, selecting the lower Battery pack of voltage to be connected with charging module, and said discharge handover module is used for linking to each other with said two Battery packs simultaneously and when being connected load, selecting the higher Battery pack of voltage to be connected with load.
2. double cell management of charging and discharging circuit according to claim 1 is characterized in that said power input interface is the DC power supply input interface.
3. double cell management of charging and discharging circuit according to claim 1 is characterized in that said charging handover module comprises chip LTC4413-1, wherein:
The pin INA that said chip LTC4413-1 is used to import power supply links to each other with the output of charging module with pin INB, receives the charge power supply from charging module;
Said chip LTC4413-1 is used to export the pin OUTA of main charging voltage, the pin OUTB that is used to export from charging voltage links to each other with a Battery pack respectively;
Said chip LTC4413-1 is used to control pin ENBA, the ground wire GND of input pin INA operate as normal, the pin ENBB ground connection that is used to control input pin INB operate as normal.
4. double cell management of charging and discharging circuit according to claim 3; It is characterized in that being used to of said chip LTC4413-1 indicates the pin STAT of charging voltage output state to link to each other with resistance, said resistance links to each other with power supply; Said pin STAT just shows the battery that is recharged according to current potential; When said pin STAT was high potential, the control indicator light was bright, and expression pin OUTA is exporting main charging voltage.
5. double cell management of charging and discharging circuit according to claim 1 is characterized in that said discharge handover module comprises chip LTC4413-1, wherein:
The pin INA that is used for the input load main power source of said chip LTC4413-1 be used for the pin INB of input load and link to each other with a Battery pack of said two Battery packs respectively from power supply;
Pin OUTA, pin OUTB that said chip LTC4413-1 is used for output loading voltage link to each other with load;
Said chip LTC4413-1 be used to control the pin INA operate as normal of input load main power source pin ENBA, be used to control pin ENBB and the ground wire GND ground connection of input load from the pin INB operate as normal of power supply.
6. double cell management of charging and discharging circuit according to claim 5; It is characterized in that; The pin STAT zero load that is used to indicate the discharge power supply output state of said chip LTC4413-1, said pin STAT just shows the battery that is discharged according to current potential, when said pin STAT is high potential; The control indicator light is bright, and a Battery pack of expression output loading main power source is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120374709XU CN202218050U (en) | 2011-09-28 | 2011-09-28 | Dual-battery charging-discharging management circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120374709XU CN202218050U (en) | 2011-09-28 | 2011-09-28 | Dual-battery charging-discharging management circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202218050U true CN202218050U (en) | 2012-05-09 |
Family
ID=46017277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120374709XU Expired - Fee Related CN202218050U (en) | 2011-09-28 | 2011-09-28 | Dual-battery charging-discharging management circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202218050U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167783A (en) * | 2014-08-06 | 2014-11-26 | 西安石油大学 | Direct-current power source low ripple wave implementation method and circuits with batteries supplying power continuously |
| CN105610215A (en) * | 2015-12-01 | 2016-05-25 | 深圳市大疆创新科技有限公司 | Power supply device, power supply control method and mobile device using power supply device |
| CN106532813A (en) * | 2016-10-28 | 2017-03-22 | 广州极飞科技有限公司 | Battery energy transferring apparatus and method |
| CN106840444A (en) * | 2017-03-14 | 2017-06-13 | 无锡云瞳信息科技有限公司 | Double cell temperature sensing circuit and double-battery charge electric control method |
| CN107404142A (en) * | 2017-09-19 | 2017-11-28 | 嘉兴市蓝盛电子科技有限公司 | Mobile icebox power supply circuit |
| CN107684412A (en) * | 2017-09-30 | 2018-02-13 | 常州凯南迪克医疗科技有限公司 | One kind miniaturization upper digestive tract dynamic ph Impedance monitoring device |
| CN107757375A (en) * | 2017-11-26 | 2018-03-06 | 安徽星凯龙客车有限公司 | A kind of double-battery charge electric discharge handover control system and method |
| CN108513632A (en) * | 2017-04-12 | 2018-09-07 | 深圳市柔宇科技有限公司 | Smartwatch and its power management system and electric quantity managing method |
| CN106840444B (en) * | 2017-03-14 | 2024-05-03 | 珠海市维钜兴电子科技有限公司 | Dual-battery temperature detection circuit and dual-battery charging control method |
-
2011
- 2011-09-28 CN CN201120374709XU patent/CN202218050U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167783A (en) * | 2014-08-06 | 2014-11-26 | 西安石油大学 | Direct-current power source low ripple wave implementation method and circuits with batteries supplying power continuously |
| CN105610215A (en) * | 2015-12-01 | 2016-05-25 | 深圳市大疆创新科技有限公司 | Power supply device, power supply control method and mobile device using power supply device |
| CN105610215B (en) * | 2015-12-01 | 2018-10-02 | 深圳市大疆创新科技有限公司 | For electric installation, method for controlling power supply and using the movable fixture for electric installation |
| CN106532813A (en) * | 2016-10-28 | 2017-03-22 | 广州极飞科技有限公司 | Battery energy transferring apparatus and method |
| CN106840444A (en) * | 2017-03-14 | 2017-06-13 | 无锡云瞳信息科技有限公司 | Double cell temperature sensing circuit and double-battery charge electric control method |
| CN106840444B (en) * | 2017-03-14 | 2024-05-03 | 珠海市维钜兴电子科技有限公司 | Dual-battery temperature detection circuit and dual-battery charging control method |
| CN108513632A (en) * | 2017-04-12 | 2018-09-07 | 深圳市柔宇科技有限公司 | Smartwatch and its power management system and electric quantity managing method |
| CN107404142A (en) * | 2017-09-19 | 2017-11-28 | 嘉兴市蓝盛电子科技有限公司 | Mobile icebox power supply circuit |
| CN107684412A (en) * | 2017-09-30 | 2018-02-13 | 常州凯南迪克医疗科技有限公司 | One kind miniaturization upper digestive tract dynamic ph Impedance monitoring device |
| CN107684412B (en) * | 2017-09-30 | 2023-10-31 | 常州凯南迪克医疗科技有限公司 | Miniaturized upper gastrointestinal dynamic pH impedance monitoring device |
| CN107757375A (en) * | 2017-11-26 | 2018-03-06 | 安徽星凯龙客车有限公司 | A kind of double-battery charge electric discharge handover control system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202218050U (en) | Dual-battery charging-discharging management circuit | |
| CN101582594B (en) | Charging control circuit | |
| US9013148B2 (en) | Lithium-ion battery pack and method of charge/discharge equalizing | |
| CN203398772U (en) | Multi-section lithium battery protection system | |
| CN102388499B (en) | Method for charging/discharging lithium-ion secondary battery, and charging/discharging system | |
| CN101917047B (en) | Method and circuit for dynamically equalizing battery management system | |
| CN111262296B (en) | Dual-battery charging structure and mobile terminal | |
| CN102340169A (en) | Double battery power supply circuit | |
| CN201726197U (en) | Double-battery power supply circuit | |
| CN102222949A (en) | Device and method for managing batteries | |
| CN108242842B (en) | Management device and method for parallel connection of different types of storage battery packs | |
| CN106033908B (en) | Power supply circuit, working method thereof and electronic equipment | |
| CN110391472B (en) | Battery management device and mobile terminal | |
| CN103023110A (en) | Analog double-cell management method and circuit thereof | |
| EP3961895A1 (en) | Step-down circuit, electronic device, and step-down method | |
| CN102122812A (en) | Over-charging protective device for rechargeable battery | |
| CN110391682B (en) | Battery charging and discharging circuit | |
| CN105262183A (en) | Power-saving type USB charging structure | |
| CN104167784A (en) | Portable power source circuit | |
| CN103094939A (en) | Battery management circuit | |
| CN201222649Y (en) | Overdischarging protection circuit capable of charging battery | |
| US20180159348A1 (en) | Mobile charge/discharge device | |
| CN105656097A (en) | Realization method of portable electronic equipment utilizing multiple sets of chargeable cells | |
| CN114094684A (en) | Framework for charging battery | |
| CN202309157U (en) | Power supply cell with one port for both charging and discharging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |