CN108242841A - A kind of mobile power and its method of work with store function - Google Patents
A kind of mobile power and its method of work with store function Download PDFInfo
- Publication number
- CN108242841A CN108242841A CN201810191985.9A CN201810191985A CN108242841A CN 108242841 A CN108242841 A CN 108242841A CN 201810191985 A CN201810191985 A CN 201810191985A CN 108242841 A CN108242841 A CN 108242841A
- Authority
- CN
- China
- Prior art keywords
- external
- voltage
- external equipment
- vbus
- interface
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/30—Charge provided using DC bus or data bus of a computer
Abstract
The present invention relates to a kind of mobile powers and its method of work with store function.The mobile power with store function, including battery module, memory module, external people control switch and the external interface being connect respectively with state switching circuit；The memory module is also connect with external interface；The external interface is the USB interface for supporting OTG functions；The external people controls switch and includes comparator；The state switching circuit includes PMOS tube.
Description
Technical field
The present invention relates to a kind of mobile powers and its method of work with store function, belong to the technology neck of mobile power
Domain.
Background technology
As smart mobile phone, tablet computer step on the generally use of handheld device, mobile power is widely used.It is existing
It is usually same interface to have smart mobile phone in technology, the data-interface of handheld device, charging interface.If the mobile electricity of interface connection
Source can not just realize the expansion and use of memory capacity；If interface connect OTG storage devices, can not external power supply supply set
It is standby.In charging, if user needs capacity extension and storage extension, need to replace between different devices, insert back and forth
Data line is pulled out, is caused inconvenient for use.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of mobile power with store function.
The present invention also provides a kind of method of works of the above-mentioned mobile power with store function.
The technical scheme is that：
A kind of mobile power with store function, including connect respectively with state switching circuit battery module, storage
Module, external people control switch and external interface；The memory module is also connect with external interface；The external interface is supports
The USB interface of OTG functions；The external people controls switch and includes comparator；The state switching circuit includes PMOS tube.
It is the switch by operator's direct operation that the external people, which controls switch, can with control device in charging mode of priority,
It is switched between high priority data pattern.The access of the state switching circuit detecting external equipment, and control external interface, deposit
Store up the power supply supply situation of module.
According to currently preferred, the USB interface ID ends and ground short circuit.
A kind of method of work of the above-mentioned mobile power with store function is as follows including step：
Charge mode of priority
When state switching circuit is arranged to charge mode of priority, then regardless of whether there is external equipment access, battery mould
Block is provided which voltage of VBUS；While voltage of VBUS is powered to external equipment also operating voltage is provided to memory module；It is charging
Under mode of priority, no matter whether external equipment is configured ID signal levels, carries out forced charge to external equipment；Its
In, the voltage of VBUS refers to the supply voltage that memory module and external equipment are supplied to after state switching circuit is converted, generally
For 5V.
High priority data pattern
When state switching circuit is arranged to high priority data pattern, then USB interface VBUS ends acquiescence do not provide externally
Voltage；
If there is external equipment is inserted into the external interface, then the comparator detects ID voltages and is less than
Vreference, comparator output low level, PMOS tube conducting, battery module provide voltage of VBUS to charging external equipment, together
When be supplied to memory module as supply voltage；
If being inserted into the external interface without external equipment, the current potential at ID ends is drawn high by battery module, the electricity at ID ends
Position is no longer carried higher than the Vreference divided by battery module, comparator output high level, PMOS shutdowns, battery module
For voltage of VBUS.
Beneficial effects of the present invention are：
1. the mobile power of the present invention with store function, by charging mode of priority and high priority data pattern it
Between switch, by same equipment, same interface realize simultaneously power supply supply and OTG store expanded function；Simplify user behaviour
Make, it is user-friendly.
Description of the drawings
Fig. 1 is the structure diagram of the mobile power of the present invention with store function；
Fig. 2 is the circuit diagram of state switching circuit of the present invention；
Fig. 3 is the circuit diagram that external people of the present invention controls switch.
Specific embodiment
With reference to embodiment and Figure of description, the present invention will be further described, but not limited to this.
Embodiment 1
As shown in Figs. 1-3.
A kind of mobile power with store function, including connect respectively with state switching circuit battery module, storage
Module, external people control switch and external interface；The memory module is also connect with external interface；The external interface is supports
The USB interface of OTG functions；The USB interface ID ends and ground short circuit.The external people controls switch and includes comparator；The state
Switching circuit includes PMOS tube.
It is the switch by operator's direct operation that the external people, which controls switch, can with control device in charging mode of priority,
It is switched between high priority data pattern.The access of the state switching circuit detecting external equipment, and control external interface, deposit
Store up the power supply supply situation of module.
As shown in Figure 2 and Figure 3, wherein CON1 is the USB interface for externally supporting OTG functions；SW1 is that external people controls switch.
Q1 is PMOS, and whether control battery module powers to VBUS ends；PMOS refers to n-type substrate, p-channel, and the flowing by hole is transported
The metal-oxide-semiconductor of electric current.
Embodiment 2
A kind of method of work of the mobile power with store function as described in Example 1 is as follows including step：
Charge mode of priority
When state switching circuit is arranged to charge mode of priority, then regardless of whether there is external equipment access, battery mould
Block is provided which voltage of VBUS；While voltage of VBUS is powered to external equipment also operating voltage is provided to memory module；It is charging
Under mode of priority, no matter whether external equipment is configured ID signal levels, carries out forced charge to external equipment；Its
In, the voltage of VBUS refers to the supply voltage that memory module and external equipment are supplied to after state switching circuit is converted, this reality
Apply in example is 5V.
High priority data pattern
When state switching circuit is arranged to high priority data pattern, then USB interface VBUS ends acquiescence do not provide externally
Voltage；
If there is external equipment is inserted into the external interface, then the comparator detects ID voltages and is less than
Vreference, comparator output low level, PMOS tube conducting, battery module provide voltage of VBUS to charging external equipment, together
When be supplied to memory module as supply voltage；
If being inserted into the external interface without external equipment, the current potential at ID ends is drawn high by battery module, the electricity at ID ends
Position is no longer carried higher than the Vreference divided by battery module, comparator output high level, PMOS shutdowns, battery module
For voltage of VBUS.
Claims (3)
1. a kind of mobile power with store function, which is characterized in that including the battery being connect respectively with state switching circuit
Module, memory module, external people control switch and external interface；The memory module is also connect with external interface；It is described to external
USB interface of the mouth to support OTG functions；The external people controls switch and includes comparator；The state switching circuit includes PMOS
Pipe.
2. the mobile power according to claim 1 with store function, which is characterized in that the USB interface ID ends with
Ground short circuit.
3. a kind of method of work of the mobile power with store function as described in claim 1,2 any one, feature exist
In as follows including step：
Charge mode of priority
When state switching circuit is arranged to charge mode of priority, then regardless of whether there is external equipment access, battery module is equal
Voltage of VBUS is provided；While voltage of VBUS is powered to external equipment also operating voltage is provided to memory module；It is preferential in charging
Under pattern, no matter whether external equipment is configured ID signal levels, carries out forced charge to external equipment；
High priority data pattern
When state switching circuit is arranged to high priority data pattern, then USB interface VBUS ends acquiescence voltage is not provided externally；
If there is external equipment is inserted into the external interface, then the comparator detects ID voltages less than Vreference, than
Low level is exported compared with device, PMOS tube conducting, battery module provides voltage of VBUS to charging external equipment, while is supplied to storage mould
Block is as supply voltage；
If being inserted into the external interface without external equipment, the current potential at ID ends is drawn high by battery module, and the current potential at ID ends is high
In the Vreference divided by battery module, comparator output high level, PMOS is turned off, and battery module no longer provides
Voltage of VBUS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191985.9A CN108242841A (en) | 2018-03-08 | 2018-03-08 | A kind of mobile power and its method of work with store function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191985.9A CN108242841A (en) | 2018-03-08 | 2018-03-08 | A kind of mobile power and its method of work with store function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108242841A true CN108242841A (en) | 2018-07-03 |
Family
ID=62699989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810191985.9A Pending CN108242841A (en) | 2018-03-08 | 2018-03-08 | A kind of mobile power and its method of work with store function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108242841A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204045207U (en) * | 2014-08-22 | 2014-12-24 | 山东超越数控电子有限公司 | A kind of USB device with power supply supply and data storage function |
| CN204947689U (en) * | 2015-09-23 | 2016-01-06 | 深圳市鑫展鸿科技有限公司 | There is the portable power source of OTG function |
-
2018
- 2018-03-08 CN CN201810191985.9A patent/CN108242841A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204045207U (en) * | 2014-08-22 | 2014-12-24 | 山东超越数控电子有限公司 | A kind of USB device with power supply supply and data storage function |
| CN204947689U (en) * | 2015-09-23 | 2016-01-06 | 深圳市鑫展鸿科技有限公司 | There is the portable power source of OTG function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180703 |