CN206270952U - A kind of card reader - Google Patents
A kind of card reader Download PDFInfo
- Publication number
- CN206270952U CN206270952U CN201620942034.7U CN201620942034U CN206270952U CN 206270952 U CN206270952 U CN 206270952U CN 201620942034 U CN201620942034 U CN 201620942034U CN 206270952 U CN206270952 U CN 206270952U
- Authority
- CN
- China
- Prior art keywords
- interface
- card reader
- link
- usb
- interfaces
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
Abstract
A kind of card reader, including：Substrate；First interface, is set on the substrate, for accessing at least duplex feeding link；The equal sub-module of power source loads, set on the substrate, and electrically connected with the first interface, for being adjusted to the supply voltage of at least duplex feeding link to wait threshold voltage, and the supply current of at least duplex feeding link is supplied to successive load simultaneously；Second interface, is set on the substrate, for connecting the successive load.The utility model embodiment aims to solve the problem that two USB interfaces while when powering, the problem that two USB interface voltages are inconsistent and cause interface current to be poured in down a chimney, and the same time can only have USB interface to provide electric current and cause the problem that the utilization ratio of two USB interfaces power supply simultaneously cannot improve.
Description
Technical field
The utility model is related to technical field of electronic equipment, more particularly to a kind of card reader.
Background technology
Quick external components interconnection standard (Peripheral Component Interconnect Express, PCIE)
The solid state hard disc (Solid State Disk, SSD) of interface as the SSD of current latest function, with than original serial ATA
The SSD of (Serial ATA, SATA) interface reads and writes speed faster, more preferably meets docking port rate requirement system requirements high.
But while speed increases, the SSD also than SATA interface is high for power consumption.
Secondly, PCIE interfaces SSD cannot be connected directly on computer at present, it is necessary to be connected to computer main board by pinboard
PCIe card groove on used as system storage.Accomplish that the function of mobile storage can be supported if desired, it is general at present
Interface is exactly the general-purpose serial bus USB interface of computer.USB interface can directly provide current to successive load and use, but
The ability that USB interface can provide electric current is should be noted in actual use.In standard, the USB2.0 interface currents of PC are defeated
Output capacity 0.5A, USB3.0 interface current fan-out capability 0.9A, the power of individual interface simultaneously cannot support what PCIE SSD read and write
Power consumption demand.The PCIE SSD card reader of the USB interface for accomplishing that actual power loss demand can be met, it is necessary to connect using two USB
Mouth provides power supply to improve the power of interface power output.Second USB interface typically only provides power pin, does not reconnect
Data-signal.The mode that mesh the first two USB interface provides power supply is that the power supply of two USB interfaces is joined directly together, or by two
Pole pipe connects successive load, specific described as follows：
As shown in figure 1, the first usb 1 01 and secondary USB interface 102 be joined directly together can be while providing current to after
Level load 103, improves the power of output.But if two USB interface voltages are inconsistent, interface current can be caused to pour in down a chimney
Problem.
As shown in Fig. 2 the first USB interface 201 connects successive load 205, secondary USB interface by the first diode 203
202 connect successive load 205, the problem that electric current can be avoided to pour in down a chimney by the second diode 204.But, the same time can only
There is a USB interface to provide current to successive load 205 so that the utilization ratio of two USB interface power supplies simultaneously cannot be carried
It is high.
Utility model content
The utility model embodiment provides a kind of card reader, it is intended to solve two USB interfaces while when powering, two
The problem that USB interface voltage is inconsistent and causes interface current to be poured in down a chimney, and the same time can only have a USB interface to provide electricity
The problem for flowing and the utilization ratio that two USB interfaces are powered simultaneously cannot being improved.
The first aspect of the utility model embodiment provides a kind of card reader, including：
Substrate；
First interface, is set on the substrate, for accessing at least duplex feeding link；
The equal sub-module of power source loads, is set on the substrate, and electrically connect with the first interface, for described in general extremely
The supply voltage of few duplex feeding link is adjusted to wait threshold voltage, and by the supply current of at least duplex feeding link simultaneously
It is supplied to successive load；
Second interface, is set on the substrate, for connecting the successive load.
Alternatively, the equal sub-module of the power source loads is additionally operable to the supply current of at least duplex feeding link is equivalent
Or the successive load is supplied in proportion.
Alternatively, the equal sub-module of the power source loads is additionally operable to detect the electricity that each described first interface accesses power supply link
Stream, when the electric current that one of them described first interface accesses power supply link is enough to provide operating current for the successive load,
The equal sub-module of power source loads selects the first interface to access power supply link for the successive load provides operating current.
Alternatively, the equal sub-module of the power source loads is dual power supply sharing control chip.
Alternatively, the power supply link is two-way, and the first interface is provided with one or two.
Alternatively, if the first interface is provided with one, the first interface can be by a power line and two-way
The two external interfaces connection powered on the corresponding terminal device of link；
Wherein, described power line one end is provided with a first port being adapted with the first interface, and the other end sets
It is equipped with two second ports being adapted with the external interface.
Alternatively, if the first interface is provided with two, the first interface can be by two power lines and two-way
The two external interfaces connection powered on the corresponding terminal device of link；
Wherein, described power line one end is provided with a first port being adapted with the first interface, and the other end sets
It is equipped with a second port being adapted with the external interface.
Alternatively, the first interface is standard USB interface, mini Mini USB interfaces or miniature Micro USB interfaces；
The external interface is standard universal serial bus USB interface；
The terminal device is PC PC.
Alternatively, the card reader is solid state hard disc card reader, and the second interface is used for grafting solid state hard disc.
Alternatively, the first interface is USB interface, and the second interface connects for quick external components interconnection standard PCIE
Mouthful；
The card reader also includes：
PCIE turns UEB bridging chips, set on the substrate, positioned at the first interface and the second interface it
Between.
Power source loads are set in the technical scheme that the utility model embodiment is provided, between feeder ear and load end and divide equally mould
Block, two unequal voltages of USB interface are adjusted into equal voltage is used for successive load, so as to avoid producing electric current to pour in down a chimney
Problem, while allowing two USB interfaces can be while providing current to successive load.Therefore relative to prior art, this practicality
New embodiment not only solves two USB interfaces while when powering, two USB interface voltages are inconsistent and cause interface current
The problem poured in down a chimney, and solve the same time and can only there is USB interface to provide electric current and cause that two USB interfaces are supplied simultaneously
The problem that the utilization ratio of electricity cannot be improved.
Brief description of the drawings
Fig. 1 is a kind of electrical schematic of card reader in the prior art；
Fig. 2 is another electrical schematic of card reader in the prior art；
Fig. 3 is a kind of structural representation of embodiment of card reader in the utility model embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those skilled in the art are obtained under the premise of creative work is not made
The every other embodiment for obtaining, belongs to the scope of the utility model protection.
Term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing, " second ", " the 3rd "
(if present)s such as " the 4 " is for distinguishing similar object, without for describing specific order or precedence.
It should be appreciated that the data for so using can be exchanged in the appropriate case, so that the embodiments described herein can be with except at this
In diagram or description content beyond order implement.Additionally, term " comprising " and " having " and their any deformation, meaning
Figure is that covering is non-exclusive to be included, for example, containing process, method, system, product or the equipment of series of steps or unit
Be not necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes,
Method, product or other intrinsic steps of equipment or unit.
Although it should be understood that being described by taking the SSD card reader of PCIE interfaces as an example in aforementioned background art part, sheet
Art personnel are it is to be understood that the utility model is not only applicable to the card reader of PCIE interfaces SSD, it is also possible to suitable for it
The card reader of his type, for example：SSD card reader, card reader of common hard disc of ata interface etc., are specifically not construed as limiting herein.This
Utility model embodiment is main by taking the SSD card reader of PCIE interfaces as an example, is described in detail.
Fig. 3 is referred to, it is a kind of structural representation of embodiment of card reader, the card reader in the utility model embodiment
It is mainly used in reading and writing the SSD of PCIE interfaces, it includes：The equal sub-module 303 of substrate 301, first interface 302, power source loads and
Two interfaces 304.
Wherein, substrate 301 is the circuit board of card reader, and the substrate 301 can be printing board PCB or other types
Circuit board, be specifically not construed as limiting herein.
First interface 302 is arranged on substrate 301, and for accessing at least duplex feeding link, the first interface 302 can be with
It is standard USB interface, mini Mini USB interfaces, miniature Micro USB interfaces or other types interface, does not limit herein specifically
It is fixed.
In the utility model embodiment, first interface 302 sets two, and is USB interface, a USB as shown in Figure 3
The USB interface 3022 of interface 3021 and first.
It should be noted that first interface 302 can set one or two, and it is even more many, specifically it is not construed as limiting herein.
By taking duplex feeding link as an example, in the case where first interface 302 sets one, first interface 302 can be by a power line
Two external interfaces connection on terminal device corresponding with duplex feeding link.Wherein, power line one end be provided with one with
The first port that first interface is adapted, the other end is provided with two second ports being adapted with external interface.
In the case where first interface 302 sets two, two first interfaces 302 can respectively by a power line with
Two external interfaces connection on the corresponding terminal device of duplex feeding link.Wherein, power line one end is provided with one and the
The first port that one interface is adapted, the other end is provided with a second port being adapted with external interface.
Terminal device described above can be PC PC, and external interface can be the USB port on PC.
The equal sub-module 303 of power source loads is arranged on substrate 301, and is electrically connected with first interface 302, for will at least two
Road power link supply voltage be adjusted to wait threshold voltage, and by the supply current of at least duplex feeding link simultaneously be supplied to after
Level load.Secondly, the equal sub-module 303 of power source loads is additionally operable to the supply current of at least duplex feeding link is equivalent or in proportion
It is supplied to successive load.
In addition, the equal sub-module 303 of power source loads is additionally operable to detect the electric current that each first interface 302 accesses power supply link,
When the electric current that one of first interface 302 accesses power supply link is enough to provide operating current for successive load, power source loads
The equal selection of sub-module 303 first interface 302 accesses power supply link for successive load provides operating current.That is, at one
In the case that USB interface can provide enough electric currents, it would however also be possible to employ a USB interface is powered, without two USB
Interface is all powered.
The equal sub-module 303 of the power source loads can be dual power supply sharing control chip, and concrete model is LTC4370.
LTC4370 is the dual power supply equalizing controller of a built-in MOSFET ideal diodes.These diodes are responsible for being isolated in startup
With the reverse current and perforation electric current in the case of failure.Its forward voltage can be adjusted with the electricity of shared load between the power supplies
Stream.Different from other current equalizing methods, the device need not lay shared bus or finishing pin on power supply.
Specifically, duplex feeding link is equal by power source loads by the first USB interface 3021 and the first USB interface 3022
The circuit of sub-module 303, then successive load circuit is provided current to, the equal sub-module 303 of power source loads can be by the first USB interface
3021 and the unequal voltage of 3,022 two interfaces of the first USB interface be adjusted to equal voltage and be used for successive load, it is to avoid
Electric current is produced to pour in down a chimney problem.Such as：2 of unequal voltage are adjusted using the dual power supply sharing control chip with flow equalizing function
Supply port so that the output voltage after control chip is adjusted is equal, and can export identical current value.
Secondly, dual power supply sharing control chip can be by two electric current output stabilizations of USB interface in successive load electric current
The 1/2 of demand, completes the offer simultaneously of 2 road electric currents and respectively power.Such as：Output current could be arranged to equal, such as 0.5A+
0.5A.Or each interface flows (each interface can be used in the case of determining current capacity) in proportion, such as set
30% electric current flows through the first USB interface 3021, and 70% electric current flows through secondary USB interface 3022.
It should be understood that stream is exactly the actual size of electric current according to circuit, the demand assignment of this electric current to 2 interfaces
Upper (ratio can set).Such as aggregate demand is 1A, and if average mark, each interface can provide 0.5A, if aggregate demand is
0.6A, average mark each interface is provided with 0.3A.
Second interface 304, is arranged on substrate 301, for grafting solid-state hard disk SSD (not shown), if solid-state is hard
The interface of disk is PCIE interfaces, then the second interface 304 can be PCIE interfaces；If the interface of solid state hard disc is ata interface,
So the second interface 304 can be ata interface；Specifically it is not construed as limiting herein.
The utility model embodiment is mainly used in reading and writing the solid-state hard disk SSD of PCIE interfaces, therefore, second interface 304 is
PCIE interfaces 3041.
Secondly as in the utility model embodiment, first interface 302 is USB interface, second interface 304 connects for PCIE
Mouth 3041, two interface type differences.Therefore, the utility model embodiment sets between first interface 302 and second interface 304
Put PCIE and turn USB bridging chips 305, the conversion entered between line interface.
It should be noted that in the utility model embodiment, successive load is also wrapped in addition to including solid state hard disc circuit
Include card reader circuit.That is, the duplex feeding link accessed from the first USB interface 3021 and the first USB interface 3022 is carried
For electric current not only to be used for solid state hard disc circuit, it is also desirable to used for card reader circuit.
In addition, the equal sub-module 303 of power source loads can also detect that first interface 302 accesses power supply link number.Tool
Body ground, the equal sub-module 303 of power source loads can detect the magnitude of voltage of the Shang Ge roads interface of first interface 302, so that it is determined that power supply
The number of link.In addition, if first interface 302 only connects 1 USB interface, and another not take over what interface, i.e. non-transformer defeated
When entering, can also allow the USB interface for connecting to be powered, rather than must two USB interfaces all connect and could power.Specifically,
Dual power supply sharing control chip can be with 2 USB interface voltage differences of automatic detection, if both pressure differences are more than setting value, certainly
The dynamic interface for closing low voltage, only opens the interface of high voltage to power.
Therefore, card reader has the function that power supply use state is indicated, the quantity of the current power supply interface of prompt system, system
After acquisition information, can enable or close low power mode of operation, can for example reduce USB interface speed, PCIE interface rates,
The measures such as PCIE Lane port numbers reduce power consumption demand, reach the purpose of system steady operation.Such as：Duplex feeding interface leads to
Dual power supply sharing control chip is crossed, dual power supply sharing control chip controls power supply to connect successive load electric current by MOSFET.When
Certain (when two interface pressure differences are more than setting value as described above), can provide indication signal when power supply is closed by MOSFET all the way, so that
Know the situation of interface being currently in use.
SSD uses PCIE interfaces as data-interface in itself.PCIE interfaces can support x1, x2, x4lane in itself
To carry out data transmission, fewer lane data paths transmission means that data throughout can reduce, and power consumption is also reduced therewith.
If card reader detects the port number (indication signal as above said) of current power supply, and detects current USB port and be in
2.0 or 3.0 state, it is also possible to power consumption when SSD reads and writes is reduced with the port number for changing PCIE.
The utility model embodiment is by increasing the equal sub-module 303 of power source loads so that two USB interfaces can be carried simultaneously
Power supply stream is used to PCIE SSD card reader, it is ensured that the system working stability during SSD read-writes during high current demand.
Above example is only used to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to foregoing reality
Example is applied to be described in detail the utility model, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the spirit and model of essence disengaging each embodiment technical scheme of the utility model of appropriate technical solution
Enclose.
Claims (10)
1. a kind of card reader, it is characterised in that including：
Substrate；
First interface, is set on the substrate, for accessing at least duplex feeding link；
The equal sub-module of power source loads, is set on the substrate, and is electrically connected with the first interface, at least two by described in
Road power link supply voltage be adjusted to wait threshold voltage, and by the supply current of at least duplex feeding link simultaneously provide
To successive load；
Second interface, is set on the substrate, for connecting the successive load.
2. card reader according to claim 1, it is characterised in that the equal sub-module of power source loads be additionally operable to by it is described extremely
The supply current of few duplex feeding link is equivalent or is supplied to the successive load in proportion.
3. card reader according to claim 1, it is characterised in that the equal sub-module of power source loads is additionally operable to detect each
The first interface accesses the electric current of power supply link, when the electric current that one of them described first interface accesses power supply link be enough to for
When the successive load provides operating current, the power source loads equal sub-module selection first interface accesses power supply link and is
The successive load provides operating current.
4. the card reader according to any one of claims 1 to 3, it is characterised in that the equal sub-module of power source loads is double
Power supply sharing control chip.
5. card reader according to claim 1, it is characterised in that the power supply link is two-way, and the first interface
It is provided with one or two.
6. card reader according to claim 5, it is characterised in that if the first interface is provided with, described
One interface can be connected by two external interfaces on power line terminal device corresponding with link of being powered described in two-way；
Wherein, described power line one end is provided with a first port being adapted with the first interface, and the other end is provided with
Two second ports being adapted with the external interface.
7. card reader according to claim 5, it is characterised in that if the first interface is provided with two, described
One interface can be connected by two external interfaces on two power lines terminal device corresponding with link of being powered described in two-way；
Wherein, described power line one end is provided with a first port being adapted with the first interface, and the other end is provided with
One second port being adapted with the external interface.
8. the card reader according to claim 6 or 7, it is characterised in that the first interface is standard USB interface, mini
Mini USB interfaces or miniature Micro USB interfaces；
The external interface is standard universal serial bus USB interface；
The terminal device is PC PC.
9. card reader according to claim 1, it is characterised in that the card reader is solid state hard disc card reader, described the
Two interfaces are used for grafting solid state hard disc.
10. card reader according to claim 9, it is characterised in that the first interface is USB interface, and described second connects
Mouth is quick external components interconnection standard PCIE interfaces；
The card reader also includes：
PCIE turns UEB bridging chips, sets on the substrate, between the first interface and the second interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620942034.7U CN206270952U (en) | 2016-08-25 | 2016-08-25 | A kind of card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620942034.7U CN206270952U (en) | 2016-08-25 | 2016-08-25 | A kind of card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206270952U true CN206270952U (en) | 2017-06-20 |
Family
ID=59036883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620942034.7U Expired - Fee Related CN206270952U (en) | 2016-08-25 | 2016-08-25 | A kind of card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206270952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636676A (en) * | 2016-08-25 | 2018-01-26 | 深圳市大疆创新科技有限公司 | A kind of card reader |
-
2016
- 2016-08-25 CN CN201620942034.7U patent/CN206270952U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636676A (en) * | 2016-08-25 | 2018-01-26 | 深圳市大疆创新科技有限公司 | A kind of card reader |
| CN107636676B (en) * | 2016-08-25 | 2021-02-19 | 深圳市大疆创新科技有限公司 | Card reader |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205544514U (en) | Take DATA TRANSFER FUNCTIONS's integrated charger | |
| CN102890666B (en) | A kind of devices and methods therefor of shared interface, communication terminal | |
| CN104008079B (en) | Data read-write circuit capable of being simultaneously inserted into SD card and TF card | |
| CN205844970U (en) | A kind of display terminal with USB Type C interface and display system | |
| CN105162213A (en) | USB controller, and device | |
| CN102339114A (en) | Charging circuit and mainboard with same | |
| CN107544653A (en) | A kind of USB Type C interface and mobile device | |
| CN101154205A (en) | Memory | |
| CN202631999U (en) | Lower computer system based on USB interface board card | |
| CN202872142U (en) | Multifunctional USB (Universal Serial Bus) data line | |
| CN206270952U (en) | A kind of card reader | |
| CN107636676A (en) | A kind of card reader | |
| CN204030194U (en) | A kind of Multifunctional data line | |
| CN203858630U (en) | Pcie interface switching device | |
| CN204480237U (en) | A kind of connector, universal serial bus device and intelligent terminal | |
| CN205016791U (en) | USB Type-C connector module | |
| CN102023939B (en) | Storage device safety circuit | |
| CN103869883B (en) | One kind extension mainboard and expansion system | |
| CN102184154B (en) | System and method for realizing hot plug of equipment | |
| CN104460923A (en) | Intelligent battery managing method, upper computer and portable mobile device | |
| CN104050123B (en) | The method of information processing and electronic equipment | |
| CN107391411A (en) | A kind of interface circuit based on switch model selection | |
| CN208538125U (en) | A kind of usb hub pcb board for supporting Carplay to select | |
| CN202661559U (en) | Host/device real-time detection circuit with USB interface | |
| CN201583987U (en) | Self-adaptive micro SD memory card compatible to MS standard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |