CN201122739Y - USB concentrator with current detecting function - Google Patents
USB concentrator with current detecting function Download PDFInfo
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- CN201122739Y CN201122739Y CNU2007201905232U CN200720190523U CN201122739Y CN 201122739 Y CN201122739 Y CN 201122739Y CN U2007201905232 U CNU2007201905232 U CN U2007201905232U CN 200720190523 U CN200720190523 U CN 200720190523U CN 201122739 Y CN201122739 Y CN 201122739Y
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Abstract
The utility model discloses a USB concentrator with current detecting function, which belongs to the field of USB concentrator. The USB concentrator comprises an upstream USB interface used for connecting with an upstream USB device, a downstream USB interface used for connecting with a downstream USB device, a current detecting module, an output module and a concentrator module; wherein the upstream USB interface is connected with the downstream USB interface through the concentrator module, the current detecting module is connected in series between the upstream USB interface and the downstream USB interface, the output terminal port of the current detecting module is connected with the output module; and the current detecting module, the output module, the concentrator module are provided for electric power through the upstream USB interface. The USB concentrator with the current detecting function provided by the utility model can obtain the corresponding current value on USB circuit visually and conveniently, the tests are not required to be performed one by one by the engineering personnel, and the production efficiency is greatly improved.
Description
Technical field
The utility model relates to the usb hub field, particularly a kind of usb hub of belt current measuring ability.
Background technology
USB (Universal Serial Bus, USB) agreement allows outer being located to be connected configuration when main frame is worked with other peripheral hardware, using and removing is so-called plug and play, the application of usb bus simultaneously can be removed PC and be gone up too much I/O port, and replace with serial-port, make between PC and the peripheral hardware be connected easier.
USB interface is come transmission signals and power supply by a quadded cable: D+ holding wire, D-holding wire, GND holding wire and Vbus holding wire.Wherein D+ holding wire and D-holding wire are the holding wires of a pair of differential mode, Vbus (high level) holding wire and GND () holding wire then provides power supply, it can give some equipment (comprising USB Hub) power supply.USB provides two kinds of data transmission rates: (another kind is 1.5Mbps (slow speed, a low speed) pattern to the high speed of a kind of 12Mbps of being for full speed, pattern at full speed).These two kinds of patterns can be present in the USB system simultaneously, and the introducing low-speed mode mainly is the cost for the not high equipment that lowers the requirement, such as mouse-keyboard or the like.
The basic function of hub (HUB) is a distribution of information, and it sends out all signals that a port receives to all of the port branch.Some hubs regenerated weak signal before distribution, and the sequential of some hub arrangement signals is to provide the synchronous data communication between all of the port.
At present, because the peripheral device kind is more and more, application popularization adds low price, color scanner, digital camera, modulator-demodulator, PC Camera, PC Phone, Speaker etc. slowly become standard device, and the USB interface quantity that main frame provided has been used more and more inadequately, so the extension function of USB HUB has just been brought into play, can select the HUB of 10,20 or more USB socket according to need, many on the market USB HUB one expand two, one and expand four, one and expand specifications such as eight at present.
In the production or test of USB device, generally all need the batch process USB device, so it is very extensive that USB HUB uses in the production of USB device and test, produce no matter be, during test is still debugged, the staff generally needs to detect by the signal on four holding wires of test USB the state of USB product, judge quality etc., it is fairly simple to survey voltage at present, such as measuring voltage on certain holding wire or the like by voltmeter, but all need to understand the electric current on the usb signal line under many situations, yet, can directly detect the method there be limited evidence currently of of electric current, generally all be to calculate by measuring other parameter, or take circuit outward and realize indirectly, or the USB device shell taken apart, ammeter is connected in series on the Vbus holding wire of USB or the GND holding wire detects, not only pretty troublesome, and the shell of USB device need be taken apart, exposing circuit board could realize, so bring a lot of inconvenience to the engineering staff, also may need extra power supply; In addition, ammeter is connected in series on the holding wire of USB device or the external outer circuit of taking to the holding wire of USB device the time, also is easy to influence the operating state of USB device, also greatly reduce production efficiency simultaneously.
The utility model content
In order to solve the problem that detects USB device operating current inconvenience, the utility model provides a kind of usb hub of belt current measuring ability, and described usb hub comprises the upstream USB interface that is used to connect the upstream USB device, downstream USB interface, current detection module, output module and the hub module that is used to connect the downstream USB device;
Described upstream USB interface links to each other with described downstream USB interface by described hub module, described current detection module is connected on the Vbus holding wire or GND holding wire between described upstream USB interface and the described downstream USB interface, and the output port of described current detection module is connected with described output module;
Described current detection module, output module and hub module provide electric power by described upstream USB interface for it.
Described current detection module is connected on the Vbus holding wire or GND holding wire between described upstream USB interface and the described hub module.
Described current detection module is connected on the Vbus holding wire or GND holding wire between described hub module and the described downstream USB interface.
Described usb hub also comprises the selection handover module, and correspondingly, described current detection module links to each other with described output module by described selection handover module; Described selection handover module provides electric power by described upstream USB interface for it.
Described selection handover module is a selector switch.
Described selection handover module is made up of control chip and selector switch.
Described hub module is a hub chip.
Described output module is specially display unit, and described display unit comprises segment encode display, matrix display, character indicator, image display or needle dial.
When described output module when being a plurality of, described output module is integrated on the display unit, and described display unit comprises segment encode display, matrix display, character indicator, image display or needle dial.
Described output module comprises storage chip, control chip and interface chip;
Described storage chip is used to store the detected current value of described current detection module;
Described control chip is used for reading out corresponding current value from described storage chip, and is sent to described interface chip;
Described interface chip is used to export described current value.
Described storage chip and control chip are integrated in the chips.
Described interface chip is UART, RS-232, RS-485, ATA or USB interface chip, or for being integrated in UART, RS-232, RS-485, ATA or the USB interface in the described control chip.
The shared USB interface chip of described interface chip and described upstream USB interface or downstream USB interface.
When described output module when being a plurality of, the shared interface chip of the interface chip in wherein two or more output modules.
Beneficial effect: the usb hub of the belt current measuring ability that the utility model provides can show output simply and easily or export current value on the corresponding USB line by interface, this equipment has overcome present production, measuring USB device in test or the debugging need be by measuring the operating current that other parameter indirect calculation obtains USB device, make to measure USB device operating current problem intuitively inadequately, take that circuit detects or need destroy USB device when using ammeter to detect outward but also overcome to use, expose the inconvenience that circuit board could be realized, the more important thing is the problem of having avoided when detecting the USB device operating current, influencing the operating state of USB device, in addition, because the usb hub that the utility model provides can pass through the USB interface power taking, so also do not need to use additional power supply.Further, the usb hub of the belt current measuring ability that the utility model provides can be realized the operating operating current of USB device is monitored in real time, and is very suitable for the situation of needs work in 24 hours; In addition, the usb hub of the belt current measuring ability that provides by the utility model can very intuitively obtain the current value on the corresponding USB circuit very easily, does not need the engineering staff to go test one by one, so improved production efficiency to a great extent.
Description of drawings
Fig. 1 is the usb hub structural representation of the belt current measuring ability that provides of the utility model embodiment 1;
Fig. 2 is the usb hub structural representation of the belt current measuring ability that provides of the utility model embodiment 2;
Fig. 3 is the usb hub structural representation of the belt current measuring ability that provides of the utility model embodiment 3.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model execution mode is described in further detail below in conjunction with accompanying drawing.
Embodiment 1:
Referring to Fig. 1, present embodiment provides a kind of usb hub 100 of belt current measuring ability, specifically comprise a upstream usb 1 01, two downstream usb 1s 02, a current detection module 103, output module 104 and hub module 105, its middle and upper reaches usb 1 01 is used to connect upstream USB device 1, downstream usb 1 02 is used to connect USB device 2, upstream usb 1 01 links to each other with two downstream usb 1s 02 respectively by hub module 105, is used to realize the function of a upstream usb 1 01 with the hub of two downstream usb 1s 02; Current detection module 103 is connected on the Vbus holding wire between upstream usb 1 01 and the hub module 105, is used to detect the current value on the usb bus of upstream usb 1 01, promptly on two downstream usb 1 02 holding wires electric current and; The output port of current detection module 103 links to each other with output module 104, is used to export the current value on the usb bus of upstream usb 1 01; Current detection module 103, output module 104 and hub module 105 provide electric power by upstream usb 1 01 for it.
The form of upstream USB device 1 includes but not limited to desktop computer, notebook computer, server, special machine, card reader, communication apparatus, digital camera, hub or PDA etc.
Because the USB interface of upstream USB device 1 is generally the form of female, and upstream USB device 1 is used for communicating with upstream usb 1 01, so upstream usb 1 01 is generally the form of male; In like manner, the downstream usb 1 02 that links to each other with USB device 2 in this hub 100 is generally the form of female, and the USB interface of USB device 2 is generally the form of male.The connected mode of USB interface is a variety of in addition, and those skilled in the art can do suitable modification and improvement according to present embodiment, for example uses A type USB interface to realize being connected with Type B USB interface or other interface shape.
In concrete production practices, the specific implementation of current detection module 103 has a variety of modes, the current detecting part that for example can form by resistance and MAX471 chip (the current detecting part also can be only to be made up of resistance), and A/D conversion chip TLC1549 realizes, the current detecting part of perhaps forming by resistance and MAX471 chip (the current detecting part also can be only to be made up of resistance), and special-purpose voltage/frequency conversion chip (voltage/frequency change-over circuit) and counting chip realization, can be light signal also with current conversion, intensity by sensed light signal realizes again, again or current conversion can be become field signal, realize by detecting field signal intensity again, or the like, those skilled in the art can do simple variant according to present embodiment, methods such as equal replacement and improvement all can realize.
Output module 104 links to each other with the output port of current detection module 103, be used for the current value on the bus Vbus holding wire of the upstream usb 1 01 that output current detection module 103 detects, output module 104 can be a display unit, for example segment encode display, matrix display, character indicator, image display or needle dial etc.
Output module 104 can also be made up of storage chip, control chip and interface chip, storage chip is used for storaging current detection module 103 detected current values, storage mode is a lot, for example storage chip can be according to coming the store electricity flow valuve memory time that sets in advance at interval, for example can set in advance every interval storage in 1 minute primary current value, a current value was stored in 1 minute in the every interval of storage chip so, and more for example, storage chip can also only be stored current current value; Control chip reads out the current value of correspondence from storage chip, and be sent to interface chip, for example can be after receiving the order of inquiry current values such as upstream USB device 1 or other main frame, peripheral hardware when control chip, if the order of inquiry current value is to read the 5th minute current value, then control chip reads out the 5th minute the current value of storing in the storage chip, is sent to interface chip; Interface chip is exported this current value.Wherein, storage chip and control chip can be integrated in the control chip and realize, interface chip can be independent UART, RS-232, RS-485, ATA or USB interface chip etc., also can be UART, RS-232, RS-485, ATA or the USB interface that is integrated in the control chip, can also be and upstream usb 1 01 a shared USB interface.
Present embodiment middle and lower reaches usb 1 02 is two, in actual applications, downstream usb 1 02 can also be three, four, eight, 16 or the like, decide according to the type of selected hub chip, what present embodiment was selected is an expansion two hub chip, be that example describes with the hub of two downstream usb 1s 02 promptly with a upstream usb 1 01, and upstream usb 1 01 is consistent with the interface principle of plural downstream usb 1 02 with present embodiment, can in like manner obtain.
Current detection module 103 is by realizing between the Vbus holding wire that is connected upstream usb 1 01 and downstream usb 1 02 in the usb hub 100 of the belt current measuring ability that present embodiment provides, in actual applications, can also be with current detection module 103 by realizing between the GND holding wire that is connected upstream usb 1 01 and downstream usb 1 02, the current value on the GND holding wire that this moment, current detection module 103 detected between upstream usb 1s 01 and the downstream usb 1 02.
The hub 100 that present embodiment provides can also have the LED light of indicating various states, two kinds of common indicator lights are power supply and port status indicator light, the hub that has also has indicator light of monitor port communications status and conflict or the like, and those skilled in the art can design as required voluntarily.
Embodiment 2:
Referring to Fig. 2, the usb hub 200 that present embodiment provides a kind of belt current to detect, specifically comprise a upstream USB interface 201, two downstream USB interface 202, three current detection modules 203, three output modules 204 and hub modules 205, its middle and upper reaches USB interface 201 is used to connect 1, two downstream USB interface 202 of upstream USB device and is used for connecting respectively two USB device 2; Upstream USB interface 201 links to each other with two downstream USB interface 202 respectively by hub module 205, is used to realize the function of a upstream USB interface 201 with the hub of two downstream USB interface 202; Wherein two current detection modules 203 are connected on respectively on the Vbus holding wire or GND holding wire between hub module 205 and two the downstream USB interface 202, another current detection module 203 is connected on the Vbus holding wire between upstream USB interface 201 and the hub module 205, is used to detect the current value on the USB interface of being connected; The output port of three current detection modules 203 links to each other with three output modules 204 respectively, is used to export detected current value; Current detection module 203, output module 204 and hub module 205 provide electric power by upstream USB interface 201 for it.
The form of upstream USB device 1 includes but not limited to desktop computer, notebook computer, server, special machine, card reader, communication apparatus, digital camera, hub or PDA etc.
Because the USB interface of upstream USB device 1 is generally the form of female, and upstream USB device 1 is used for communicating with upstream USB interface 201, so upstream USB interface 201 is generally the form of male, in like manner, the downstream USB interface 202 that links to each other with USB device 2 in this hub 200 is generally the form of female, and the USB interface of USB device 2 is generally the form of male.The connected mode of USB interface is a variety of in addition, and those skilled in the art can do suitable modification and improvement according to present embodiment, for example uses A type USB interface to realize being connected with Type B USB interface or other interface shape.
In concrete production practices, the specific implementation of current detection module 203 has a variety of modes, the current detecting part that for example can form by resistance and MAX471 chip (the current detecting part also can be only to be made up of resistance), and A/D conversion chip TLC1549 realizes, the current detecting part of perhaps forming by resistance and MAX471 chip (the current detecting part also can be only to be made up of resistance), and special-purpose voltage/frequency conversion chip (voltage/frequency change-over circuit) and counting chip realization, can be light signal also with current conversion, intensity by sensed light signal realizes again, again or current conversion can be become field signal, realize by detecting field signal intensity again, or the like, those skilled in the art can do simple variant according to present embodiment, methods such as equal replacement and improvement all can realize.
Present embodiment middle and lower reaches USB interface 202 is two, in actual applications, downstream USB interface 202 can also be three, four, eight, 16 or the like, decide according to the type of selected hub chip, what present embodiment was selected is an expansion two hub chip, be that example describes with the hub of two downstream USB interface 202 promptly with a upstream USB interface 201, and upstream USB interface 201 is consistent with the interface principle of plural downstream USB interface 202 with present embodiment, can in like manner obtain.
The number of current detection module 203 can be upstream USB interface 201 numbers and downstream USB interface 202 numbers and, this moment hub 200 each USB interface holding wire on the current detection module 203 of all connecting, thereby realize the detection of current value on upstream usb bus and each downstream USB line; The number of current detection module 203 also can less than upstream USB interface 201 numbers and downstream USB interface 202 numbers and, this moment, current detection module 203 can be selected to be connected on the Vbus holding wire or GND holding wire of several USB interface wherein, was used to detect corresponding USB interface current value.
In like manner, the number of output module 204 can be identical with the number of current detection module 203, also can be less than the number of current detection module 203, preferably, output module 204 is identical with the quantity of current detection module 203, output port with current detection module 203 links to each other respectively, is used for the corresponding USB interface Vbus holding wire of output current detection module 203 detections or the current value on the GND holding wire.
The hub 200 that present embodiment provides can also have the LED light of indicating various states, two kinds of common indicator lights are power supply and port status indicator light, the hub that has also has indicator light of monitor port communications status and conflict or the like, and those skilled in the art can design as required voluntarily.
Embodiment 3:
Referring to Fig. 3, present embodiment provides a kind of usb hub 300 of belt current measuring ability, specifically comprise a upstream USB interface 301, two downstream USB interface 302, three current detection modules 303, one select handover module 304, an output module 305 and a hub module 306, its middle and upper reaches USB interface 301 is used to connect 1, two downstream USB interface 302 of upstream USB device and is used for connecting respectively two USB device 2; Upstream USB interface 301 links to each other with two downstream USB interface 302 respectively by hub module 306, is used to realize the function of a upstream USB interface 301 with the hub of two downstream USB interface 302; Wherein two current detection modules 303 are connected on respectively on the Vbus holding wire or GND holding wire between hub module 306 and two the downstream USB interface 302, another current detection module 303 is connected on the Vbus holding wire between upstream USB interface 301 and the hub module 306, is used to detect the current value on the USB interface of being connected; The output port of three current detection modules 303 links to each other with selecting handover module 304 respectively, select handover module 304 to link to each other, be used for selecting a detected current value of current detection module by output module 305 outputs from three current detection modules 303 with output module 305; Current detection module 303, selection handover module 304, output module 305 and hub module 306 provide electric power by upstream USB interface 301 for it.
The form of upstream USB device 1 includes but not limited to desktop computer, notebook computer, server, special machine, card reader, communication apparatus, digital camera, hub or PDA etc.
Because the USB interface of upstream USB device 1 is generally the form of female, and upstream USB device 1 is used for communicating with upstream USB interface 301, so upstream USB interface 301 is generally the form of male, in like manner, the downstream USB interface 302 that links to each other with USB device 2 in this hub 300 is generally the form of female, and the USB interface of USB device 2 is generally the form of male.The connected mode of USB interface is a variety of in addition, and those skilled in the art can do suitable modification and improvement according to present embodiment, for example uses A type USB interface to realize being connected with Type B USB interface or other interface shape.
In concrete production practices, the specific implementation of current detection module 303 has a variety of modes, the current detecting part that for example can form by resistance and MAX471 chip (the current detecting part also can be only to be made up of resistance), and A/D conversion chip TLC1549 realizes, the current detecting part of perhaps forming by resistance and MAX471 chip (the current detecting part also can be only to be made up of resistance), and special-purpose voltage/frequency conversion chip (voltage/frequency change-over circuit) and counting chip realization, can be light signal also with current conversion, intensity by sensed light signal realizes again, again or current conversion can be become field signal, realize by detecting field signal intensity again, or the like, those skilled in the art can do simple variant according to present embodiment, methods such as equal replacement and improvement all can realize.
The output port of three current detection modules 303 links to each other with selecting handover module 304, selects handover module 304 to be used for delivering to output module 305 outputs from the current value that three current detection modules 303 are selected a current detection module; Select handover module 304 can select selector switch for use, for example the current detection module in the present embodiment 303 has 3, can be provided with 3 selector switches this moment on device 300, when which current detection module of output 303 detected current values are selected in hope, then utilize selector switch to select corresponding current detection module 303 to export and get final product; Select handover module 304 to form by control chip and selector switch.
Select handover module 304 to link to each other, be used to export the current value on the corresponding USB interface holding wire of selecting handover module 304 selections with output module 305; Output module 305 can be a display unit, for example segment encode display, matrix display, character indicator, image display or needle dial etc.; Output module 305 can also be made up of storage chip, control chip and interface chip, storage chip is used for storaging current detection module 303 detected current values, storage mode is a lot, for example storage chip can be according to coming the store electricity flow valuve memory time that sets in advance at interval, for example can set in advance every interval storage in 1 minute primary current value, a current value was stored in 1 minute in the every interval of storage chip so, and more for example, storage chip can also only be stored current current value; Control chip reads out the current value of correspondence from storage chip, and be sent to interface chip, after for example receiving the order of inquiry current values such as upstream USB device 1 or other main frame, peripheral hardware when control chip, if the order of inquiry current value is to read the 5th minute current value, then control chip reads out the 5th minute the current value of storing in the storage chip, is sent to interface chip; Interface chip is exported this current value.Wherein, storage chip and control chip can be integrated in the control chip and realize, interface chip can be independent UART, RS-232, RS-485, ATA or USB interface chip etc., also can be UART, RS-232, RS-485, ATA or the USB interface that is integrated in the control chip, can also be and upstream USB interface 301 shared USB interface.
Present embodiment middle and lower reaches USB interface 302 is two, in actual applications, downstream USB interface 302 can also be three, four, eight, 16 or the like, decide according to the type of selected hub chip, what present embodiment was selected is an expansion two hub chip, be that example describes with the hub of two downstream USB interface 302 promptly with a upstream USB interface 301, and upstream USB interface 301 is consistent with the interface principle of plural downstream USB interface 302 with present embodiment, can in like manner obtain.
The number of current detection module 303 can be upstream USB interface 301 numbers and downstream USB interface 302 numbers and, this moment hub 300 each USB interface holding wire on the current detection module 303 of all connecting, thereby realize the detection of current value on upstream usb bus and each downstream USB line; The number of current detection module 303 also can less than upstream USB interface 301 numbers and downstream USB interface 302 numbers and, this moment, current detection module 303 can be selected to be connected on the Vbus holding wire or GND holding wire of several USB interface wherein, was used to detect corresponding USB interface current value.Preferably, present embodiment be the number with current detection module 303 be upstream USB interface 301 numbers and downstream USB interface 302 numbers and situation be that example describes, the number of current detection module 303 less than upstream USB interface 301 numbers and downstream USB interface 302 numbers and situation user can obtain according to the present embodiment modification, repeat no more herein.
The hub 300 that present embodiment provides can also have the LED light of indicating various states, two kinds of common indicator lights are power supply and port status indicator light, the hub that has also has indicator light of monitor port communications status and conflict or the like, and those skilled in the art can design as required voluntarily.
The usb hub of the belt current measuring ability that the utility model embodiment provides can show output simply and easily or export current value on the corresponding USB line by interface, this equipment has overcome present production, measuring USB device in test or the debugging need be by measuring the operating current that other parameter indirect calculation obtains USB device, make to measure USB device operating current problem intuitively inadequately, take that circuit detects or need destroy USB device when using ammeter to detect outward but also overcome to use, expose the inconvenience that circuit board could be realized, the more important thing is the problem of having avoided when detecting the USB device operating current, influencing the operating state of USB device, in addition, because the usb hub that the utility model embodiment provides can pass through the USB interface power taking, so also do not need to use additional power supply.Further, the usb hub of the belt current measuring ability that the utility model provides can be realized the operating operating current of USB device is monitored in real time, and is very suitable for the situation of needs work in 24 hours; In addition, the usb hub of the belt current measuring ability that provides by the utility model can very intuitively obtain the current value on the corresponding USB circuit very easily, does not need the engineering staff to go test one by one, so improved production efficiency to a great extent.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (14)
1. the usb hub of a belt current measuring ability, it is characterized in that described usb hub comprises the upstream USB interface that is used to connect the upstream USB device, downstream USB interface, current detection module, output module and the hub module that is used to connect the downstream USB device;
Described upstream USB interface links to each other with described downstream USB interface by described hub module, described current detection module is connected on the Vbus holding wire or GND holding wire between described upstream USB interface and the described downstream USB interface, and the output port of described current detection module is connected with described output module;
Described current detection module, output module and hub module provide electric power by described upstream USB interface for it.
2. the usb hub of belt current measuring ability as claimed in claim 1 is characterized in that, described current detection module is connected on the Vbus holding wire or GND holding wire between described upstream USB interface and the described hub module.
3. the usb hub of belt current measuring ability as claimed in claim 1 is characterized in that, described current detection module is connected on the Vbus holding wire or GND holding wire between described hub module and the described downstream USB interface.
4. the usb hub of belt current measuring ability as claimed in claim 1 is characterized in that, described usb hub also comprises the selection handover module, and correspondingly, described current detection module links to each other with described output module by described selection handover module; Described selection handover module provides electric power by described upstream USB interface for it.
5. the usb hub of belt current measuring ability as claimed in claim 4 is characterized in that, described selection handover module is a selector switch.
6. the usb hub of belt current measuring ability as claimed in claim 4 is characterized in that, described selection handover module is made up of control chip and selector switch.
7. the usb hub of belt current measuring ability as claimed in claim 1 is characterized in that, described hub module is a hub chip.
8. the usb hub of belt current measuring ability as claimed in claim 1 is characterized in that, described output module is specially display unit, and described display unit comprises segment encode display, matrix display, character indicator, image display or needle dial.
9. the usb hub of belt current measuring ability as claimed in claim 1, it is characterized in that, when described output module when being a plurality of, described output module is integrated on the display unit, and described display unit comprises segment encode display, matrix display, character indicator, image display or needle dial.
10. the usb hub of belt current measuring ability as claimed in claim 1 is characterized in that, described output module comprises storage chip, control chip and interface chip;
Described storage chip is used to store the detected current value of described current detection module;
Described control chip is used for reading out corresponding current value from described storage chip, and is sent to described interface chip;
Described interface chip is used to export described current value.
11. the usb hub of belt current measuring ability as claimed in claim 10 is characterized in that, described storage chip and control chip are integrated in the chips.
12. the usb hub of belt current measuring ability as claimed in claim 10, it is characterized in that, described interface chip is UART, RS-232, RS-485, ATA or USB interface chip, or for being integrated in UART, RS-232, RS-485, ATA or the USB interface in the described control chip.
13. the usb hub of belt current measuring ability as claimed in claim 10 is characterized in that, the shared USB interface chip of described interface chip and described upstream USB interface or downstream USB interface.
14. the usb hub of belt current measuring ability as claimed in claim 10 is characterized in that, when described output module when being a plurality of, and the shared interface chip of the interface chip in wherein two or more output modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201905232U CN201122739Y (en) | 2007-11-30 | 2007-11-30 | USB concentrator with current detecting function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201905232U CN201122739Y (en) | 2007-11-30 | 2007-11-30 | USB concentrator with current detecting function |
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|---|---|
| CN201122739Y true CN201122739Y (en) | 2008-09-24 |
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| CNU2007201905232U Expired - Lifetime CN201122739Y (en) | 2007-11-30 | 2007-11-30 | USB concentrator with current detecting function |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685934B (en) * | 2008-09-25 | 2011-09-21 | 宏达国际电子股份有限公司 | Pluggable adaptor and potable system |
| CN105098890A (en) * | 2015-07-23 | 2015-11-25 | 深圳市华宝新能源有限公司 | Charging data line and charger |
| CN105259402A (en) * | 2015-10-27 | 2016-01-20 | 昆山洺九机电有限公司 | USB interface current and voltage test device |
| CN105740188A (en) * | 2016-04-13 | 2016-07-06 | 深圳警翼数码科技有限公司 | Device and method for expanding single USB interface into double-path interface |
| CN106918771A (en) * | 2015-12-24 | 2017-07-04 | 英业达科技有限公司 | Suitable for the test circuit plate of universal serial bus connector |
| CN108718020A (en) * | 2015-06-30 | 2018-10-30 | 宸定科技股份有限公司 | hub |
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2007
- 2007-11-30 CN CNU2007201905232U patent/CN201122739Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685934B (en) * | 2008-09-25 | 2011-09-21 | 宏达国际电子股份有限公司 | Pluggable adaptor and potable system |
| CN108718020A (en) * | 2015-06-30 | 2018-10-30 | 宸定科技股份有限公司 | hub |
| CN105098890A (en) * | 2015-07-23 | 2015-11-25 | 深圳市华宝新能源有限公司 | Charging data line and charger |
| CN105098890B (en) * | 2015-07-23 | 2018-08-03 | 深圳市华宝新能源股份有限公司 | Charging data line and charger |
| CN105259402A (en) * | 2015-10-27 | 2016-01-20 | 昆山洺九机电有限公司 | USB interface current and voltage test device |
| CN106918771A (en) * | 2015-12-24 | 2017-07-04 | 英业达科技有限公司 | Suitable for the test circuit plate of universal serial bus connector |
| CN105740188A (en) * | 2016-04-13 | 2016-07-06 | 深圳警翼数码科技有限公司 | Device and method for expanding single USB interface into double-path interface |
| CN105740188B (en) * | 2016-04-13 | 2018-08-28 | 深圳警翼智能科技股份有限公司 | A kind of device and method that single USB interface is extended to two-way interface |
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