CN206498249U - A kind of power supply output control switching circuit based on charging management chip - Google Patents
A kind of power supply output control switching circuit based on charging management chip Download PDFInfo
- Publication number
- CN206498249U CN206498249U CN201720135872.8U CN201720135872U CN206498249U CN 206498249 U CN206498249 U CN 206498249U CN 201720135872 U CN201720135872 U CN 201720135872U CN 206498249 U CN206498249 U CN 206498249U
- Authority
- CN
- China
- Prior art keywords
- switch pipe
- mos switch
- management chip
- charging management
- power supply
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 38
- 230000005611 electricity Effects 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 102100023941 G-protein-signaling modulator 2 Human genes 0.000 description 1
- 101000904754 Homo sapiens G-protein-signaling modulator 2 Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of power supply output control switching circuit based on charging management chip, belongs to field of power management.It includes adapter, battery, charging management chip, EC chips, MOS switch pipe Q1, Q2, Q3, Q4；The adapter is connected after MOS switch pipe Q1 with output loading all the way, and another charged managing chip in road, which is input at battery interface, battery interface, is connected with battery, then is connected after MOS switch pipe Q2 with output loading；Communicated between the EC chips and the charging management chip, battery interface；The MOS switch pipe Q1 is also connected with charging management chip, and MOS switch pipe Q3, MOS switch pipe Q4 are connected between charging management chip and MOS switch pipe Q2 successively.The utility model peripheral circuit is simple, it is easy to accomplish, either adapter or the one of appearance of lithium battery are abnormal, and another safe and reliable can be efficiently completed power supply and switch and prevent voltage from pouring in down a chimney.
Description
Technical field
The utility model is related to technical field of power management, and specifically a kind of power supply based on charging management chip is defeated
Go out to control switching circuit.
Background technology
In recent years, electronic equipment was widely available, and these equipment are all to system board with adapter and lithium battery as power supply
Card power supply.Two kinds of power supplys, which are powered, has following several situations, the first situation：When adaptor power supplies are normal, adaptation is used
Device power supply is powered.Second of situation：In the case of adaptor power supplies exception or power down, lithium battery can be switched at once
Continue to power.The third situation：After adaptor power supplies recover normal, adaptor power supplies can be automatically switched to and powered.The
Four kinds of situations：Adapter and lithium battery are all normal, detect electric quantity of lithium battery it is discontented when, adapter will give lithium cell charging, and
Full of when be automatically stopped charging.
In handoff procedure, system board, which is unable to power down, causes system appearance is abnormal to shut down or restart, it is ensured that system
The safe and reliable smooth catcher of board is powered, and then ensures system run all right.Therefore, adapter how is controlled to pacify with lithium battery
It is the important performance indexes being had to take into account that in designing that complete reliable electron equipment, which is powered,.
The content of the invention
Technical assignment of the present utility model is that there is provided a kind of electricity based on charging management chip in view of the shortcomings of the prior art
Source output control switching circuit, this circuit arrangement can guarantee that product in adapter and lithium battery because exception occurs in some power supply
When, another can be with Quick coupling.
The utility model solves the technical scheme that its technical problem used：
A kind of power supply output control switching circuit based on charging management chip, including adapter, battery, in addition to：Fill
Electric managing chip, EC chips, MOS switch pipe Q1, MOS switch pipe Q2, MOS switch pipe Q3 and MOS switch pipe Q4；
The adapter is connected after MOS switch pipe Q1 with output loading all the way, another charged managing chip input in road
To battery interface, battery is connected with battery interface, then be connected after MOS switch pipe Q2 with output loading；The EC chips and institute
State and communicated between charging management chip, battery interface；The MOS switch pipe Q1 is also connected with charging management chip, MOS switch
Pipe Q3, MOS switch pipe Q4 are connected between charging management chip and MOS switch pipe Q2 successively.
Alternatively, the charging management chip model LTC4100EG.
Alternatively, the MOS switch pipe Q1 is PMOS_A, and MOS switch pipe Q2 is PMOS_B, and MOS switch pipe Q3 is NMOS_
A, MOS switch pipe Q4 are NMOS_B.
Alternatively, the grid of the MOS switch pipe Q1 is connected with charging management chip, its output end drained with adapter
It is connected, its source electrode is connected with output loading；
The grid of the MOS switch pipe Q2 is connected with MOS switch pipe Q4 drain electrode, its output end drained with battery interface
It is connected, its source electrode is connected with output loading；
The grid of the MOS switch pipe Q3 is connected with charging management chip, and it, which drains, connects simulation ground, and its source electrode connects numeral
Ground；
The grid of the MOS switch pipe Q4 is connected with MOS switch pipe Q3 drain electrode, and its source electrode connects digitally.
Alternatively, the EC chips are communicated by SMBus buses and battery interface.
Alternatively, the output loading is system board.
Alternatively, the battery is three cores, four cores or five core lithium batteries.
A kind of power supply output control switching circuit based on charging management chip of the present utility model, compared with prior art
Produced beneficial effect is：
Applied to adapter and lithium battery power supply is used in notebook, its peripheral circuit is simple, it is easy to accomplish, support simultaneously
The management of charging and discharging of three cores, four cores and five core lithium batteries, in adapter or the abnormal one of appearance of lithium battery, another electricity
Source can be switched with seamless selection and prevent voltage from pouring in down a chimney, and be ensured when adapter is in place to lithium cell charging.
Brief description of the drawings
Accompanying drawing 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings 1, electricity is switched to a kind of power supply output control based on charging management chip of the present utility model
Road is described in detail below.
As shown in Figure 1, a kind of power supply output control switching circuit based on charging management chip of the present utility model, it is main
Will include adapter, lithium battery, charging management chip, EC chips, MOS switch pipe Q1, MOS switch pipe Q2, MOS switch pipe Q3 and
MOS switch pipe Q4, while supporting the management of charging and discharging of three cores, four cores or five core lithium batteries.
Power supply signal is connected by adapter after MOS switch pipe Q1 with system board all the way, and another road passes through power supply signal
Charging management chip, which is input at battery interface, battery interface, is connected with battery, then after MOS switch pipe Q2 with system board connect
Connect.Communicated between EC chips and the charging management chip, battery interface.MOS switch pipe Q1 is also connected with Charge Management core
Piece, MOS switch pipe Q3, MOS switch pipe Q4 are connected between charging management chip and MOS switch pipe Q2 successively.
Above-mentioned MOS switch pipe Q1 is PMOS_A, and MOS switch pipe Q2 is PMOS_B, and MOS switch pipe Q3 is NMOS_A, and MOS is opened
It is NMOS_B to close pipe Q4.Wherein：
MOS switch pipe Q1 grid is connected with charging management chip, and its drain electrode is connected with the output end of adapter, its source electrode
It is connected with system board；MOS switch pipe Q2 grid is connected with MOS switch pipe Q4 drain electrode, and it drains defeated with battery interface
Go out end to be connected, its source electrode is connected with system board；MOS switch pipe Q3 grid is connected with charging management chip, and its drain electrode connects mould
Intend ground, its source electrode connects digitally；MOS switch pipe Q4 grid is connected with MOS switch pipe Q3 drain electrode, and its source electrode connects digitally.
On the basis of said structure, EC chips are communicated by SMBus buses and battery interface.
It should be noted that charging management chip model includes but is not limited to LTC4100EG, below with charging management chip
Exemplified by model LTC4100EG, in the following several ways, the course of work to power supply output control switching circuit is illustrated：
Adapter and lithium battery provide power supply to notebook, and EC chips are read by SMBus buses judges whether access
Lithium battery, charging management chip is responsible for after adapter access to lithium cell charging and reads lithium battery by SMBus bus communications
Charge condition, MOS switch management and control adapter and lithium battery electric discharge switching.
When adapter is working properly, and lithium battery is not required to charging, charging management chip INFET pins export a low level
Gate end of the signal to MOS switch pipe Q1, MOS switch pipe Q1 conductings, adaptor voltages are output to system board and give equipment mainboard
System power supply, completes adapter and powers.While the ACP of charging management chip（AC adapter gets out signal）Output is one high
Level, tells EC chips, and adapter is working properly, while the ACP of charging management chip exports high level to MOS switch pipe Q3's
Gate ends, MOS switch pipe Q3 conductings export Gate end of the low level to MOS switch pipe Q4, and MOS switch pipe Q4 cut-offs, MOS is opened
Close pipe Q4 and Gate end of the 0.6V level to MOS switch pipe Q2 is exported by body diode, MOS switch pipe Q2 ends, and lithium battery is not
Powered to system board.
When lithium battery is normal in place, EC chips detect lithium battery by SMBus buses, when adapter appearance exception,
The ACP of charging management chip exports Gate end of the low level to MOS switch pipe Q3, MOS switch pipe Q3 cut-offs, MOS switch
Pipe Q4 Gate ends are height, and MOS switch pipe Q4 conductings export Gate end of the low level to MOS switch pipe Q2, MOS switch pipe Q2
Conducting, lithium battery voltage is output to mainboard, completes lithium battery power supply, while MOS switch pipe Q1 ends, prevents lithium battery from overwhelming
Fill to adapter end.
When adapter and lithium battery with it is in place when it is all normal when, EC chips detect lithium battery by SMBus buses, by lithium
Battery level information feeds back to EC chips and charging management chip, judges whether to lithium cell charging, when battery electric quantity is full of, lithium
Information about power is fed back to EC chips by battery by SMBus buses, and EC chips tell charging management chip by SMBus buses again
No longer give lithium cell charging.
When plug adapter or plug lithium battery, or one of appearance is abnormal, is changed into lithium battery or adapter one
Work, pass through the power supply switch circuit, it is possible to achieve seamless " catcher " between adapter and lithium battery, realize adapter and
The switching of lithium battery power supply mode.
A kind of power supply output control switching circuit based on charging management chip of the present utility model, its processing and fabricating is simple
It is convenient, processing and fabricating shown in by specification accompanying drawing.
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
Claims (7)
1. a kind of power supply output control switching circuit based on charging management chip, including adapter, battery, it is characterised in that
Also include：Charging management chip, EC chips, MOS switch pipe Q1, MOS switch pipe Q2, MOS switch pipe Q3 and MOS switch pipe Q4；
The adapter is connected after MOS switch pipe Q1 with output loading all the way, and another charged managing chip in road is input to electricity
Battery is connected with pond interface, battery interface, then is connected after MOS switch pipe Q2 with output loading；The EC chips fill with described
Communicated between electric managing chip, battery interface；The MOS switch pipe Q1 is also connected with charging management chip, MOS switch pipe
Q3, MOS switch pipe Q4 are connected between charging management chip and MOS switch pipe Q2 successively.
2. a kind of power supply output control switching circuit based on charging management chip according to claim 1, its feature exists
In the charging management chip model LTC4100EG.
3. a kind of power supply output control switching circuit based on charging management chip according to claim 1 or 2, its feature
It is, the MOS switch pipe Q1 is PMOS_A, MOS switch pipe Q2 is PMOS_B, and MOS switch pipe Q3 is NMOS_A, MOS switch
Pipe Q4 is NMOS_B.
4. a kind of power supply output control switching circuit based on charging management chip according to claim 3, its feature exists
In the grid of the MOS switch pipe Q1 is connected with charging management chip, and its drain electrode is connected with the output end of adapter, its source electrode
It is connected with output loading；
The grid of the MOS switch pipe Q2 is connected with MOS switch pipe Q4 drain electrode, its output end phase drained with battery interface
Even, its source electrode is connected with output loading；
The grid of the MOS switch pipe Q3 is connected with charging management chip, and it, which drains, connects simulation ground, and its source electrode connects digitally；
The grid of the MOS switch pipe Q4 is connected with MOS switch pipe Q3 drain electrode, and its source electrode connects digitally.
5. a kind of power supply output control switching circuit based on charging management chip according to claim 1, its feature exists
In the EC chips are communicated by SMBus buses and battery interface.
6. a kind of power supply output control switching circuit based on charging management chip according to claim 1,2 or 4, it is special
Levy and be, the output loading is system board.
7. a kind of power supply output control switching circuit based on charging management chip according to claim 1,2 or 4, it is special
Levy and be, the battery is three cores, four cores or five core lithium batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720135872.8U CN206498249U (en) | 2017-02-15 | 2017-02-15 | A kind of power supply output control switching circuit based on charging management chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720135872.8U CN206498249U (en) | 2017-02-15 | 2017-02-15 | A kind of power supply output control switching circuit based on charging management chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206498249U true CN206498249U (en) | 2017-09-15 |
Family
ID=59804980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720135872.8U Active CN206498249U (en) | 2017-02-15 | 2017-02-15 | A kind of power supply output control switching circuit based on charging management chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206498249U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277816A (en) * | 2019-06-25 | 2019-09-24 | 合肥联宝信息技术有限公司 | A kind of terminal method of supplying power to and device |
| WO2019227838A1 (en) * | 2018-05-31 | 2019-12-05 | 郑州云海信息技术有限公司 | Chip power-on reset circuit |
-
2017
- 2017-02-15 CN CN201720135872.8U patent/CN206498249U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227838A1 (en) * | 2018-05-31 | 2019-12-05 | 郑州云海信息技术有限公司 | Chip power-on reset circuit |
| CN110277816A (en) * | 2019-06-25 | 2019-09-24 | 合肥联宝信息技术有限公司 | A kind of terminal method of supplying power to and device |
| CN110277816B (en) * | 2019-06-25 | 2021-02-26 | 合肥联宝信息技术有限公司 | Terminal power supply method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203800642U (en) | Charging Po and charging system | |
| CN208174340U (en) | The power supply circuit and electronic product of portable electronic product with OTG function | |
| CN201813422U (en) | Charging chip and mobile terminal capable of automatically adjusting charging mode | |
| CN202949240U (en) | Portable power source capable of supplying alternative current | |
| US20110248681A1 (en) | Systems and methods for configuring and charging hybrid battery systems | |
| CN203722283U (en) | Charging cable and charging system | |
| CN208571664U (en) | A kind of charge control system of built-in terminal | |
| CN103403643B (en) | Management of charging and discharging device and mobile terminal | |
| CN108242842B (en) | Management device and method for parallel connection of different types of storage battery packs | |
| CN107154670A (en) | A kind of double lithium battery control systems based on EC controllers | |
| CN206498249U (en) | A kind of power supply output control switching circuit based on charging management chip | |
| CN101316042A (en) | Safety control system for backup battery interface of medical equipment | |
| CN110994769A (en) | Double-battery system and mobile terminal equipment | |
| CN107221988A (en) | The power circuit and its control method of a kind of under-voltage protection | |
| CN102280916B (en) | Power supply module compatible with plurality of batteries and GPS receiving equipment | |
| CN204721077U (en) | The online UPS of a kind of distributed modular | |
| CN204103559U (en) | A kind of power circuit | |
| CN202474940U (en) | Lithium battery miner lamp charging management switch based on current direction | |
| CN204465080U (en) | For the battery management system of lithium battery group | |
| CN201754256U (en) | Notebook computer and battery thereof | |
| CN107612081A (en) | A kind of electronic equipment and portable power source | |
| CN100359430C (en) | Method for hot Atach & Detach changing battery module of portable electrical equipment | |
| CN104184179A (en) | Battery control method and device, and wireless terminal | |
| CN106253404A (en) | A kind of power-supply management system of road measuring device | |
| CN203800645U (en) | Charging Po |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211105 Address after: 250100 building S02, No. 1036, Langchao Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Inspur Scientific Research Institute Co.,Ltd. Address before: 250100 First Floor of R&D Building 2877 Kehang Road, Sun Village Town, Jinan High-tech Zone, Shandong Province Patentee before: JINAN INSPUR HIGH-TECH TECHNOLOGY DEVELOPMENT Co.,Ltd. |