CN201417447Y - USB hub device having load current and voltage detection function - Google Patents
USB hub device having load current and voltage detection function Download PDFInfo
- Publication number
- CN201417447Y CN201417447Y CN2009201607887U CN200920160788U CN201417447Y CN 201417447 Y CN201417447 Y CN 201417447Y CN 2009201607887 U CN2009201607887 U CN 2009201607887U CN 200920160788 U CN200920160788 U CN 200920160788U CN 201417447 Y CN201417447 Y CN 201417447Y
- Authority
- CN
- China
- Prior art keywords
- module
- usb
- voltage
- usb hub
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Power Sources (AREA)
Abstract
The utility model discloses a USB hub device having load current and voltage detection function, comprising an external power source, a USB hub and a USB upstream unit module connected with the USB hub electrically, wherein the external power source and the USB upstream unit module are accessed to a current and voltage sampling module through a voltage insulating and switching module respectively,and the current and voltage sampling module is electrically connected to a USB downstream unit module; the current and voltage sampling module is accessed to a sample signal processing and transferring module, which is electrically connected with a voltage/current display driving and displaying module, a voltage/current value storing module and a communication module respectively; and the USB upstream unit module is electrically connected with the USB hub. Compared with the USB hub device of the present technology, the utility model has advantages that the detection results of the load current and voltage are accurate, the USB hub device is capable of storing, displaying and transmitting the detection results, and is capable of detecting the current and voltage of products with packaginghousings.
Description
Technical field
The utility model relates to the parameter detecting field of USB device, particularly a kind of usb hub device with load current, voltage detecting function.
Background technology
Fast development along with USB interface, increasing company is carrying out the USB Products Development, the 5V power supply that a lot of USB products all directly adopt main frame to provide is powered, so an indispensable link is all arranged in these product developments, load current to product detects exactly, meets the requirement of USB electrical specification to guarantee product.General PC only provides a limited number of USB interface (for example 4-6), and these USB interface tend to by hold facilities such as keyboard, mouses, so most of purposes can be come expanding USB interface by usb hub, usb hub commonly used is supported 1 pair 4, promptly USB interface can be expanded to 4 by one.So most of user is when carrying out the USB product development, the capital is adopted usb hub to carry out the equipment connection and is detected, and electric current, voltage detecting, generally be in load circuit, insert electric current, voltage table detects, detection means complexity and can't store, show and transmit not only to testing result, and because the access of current voltmeter, changed the load condition of equipment, influenced its testing result.And under some environment, for example the product to certain packaged shell carries out the electric current and voltage detection, and this detection can't be carried out more.
The utility model content
Technical problem to be solved in the utility model is, at above-mentioned prior art present situation, and provide a kind of testing result accurately also testing result can be stored, shown and transmits, and also can carry out the usb hub device that electric current and voltage detects with load current, voltage detecting function to product with package casing.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of usb hub device with load current, voltage detecting function, comprise external power supply, USB Upsteam module, usb hub, described USB Upsteam module is electrically connected mutually with usb hub, it is characterized in that: described external power supply, USB Upsteam module insert several electric current, voltage sampling module by the voltage isolation handover module respectively, and every road electric current, voltage sampling module are electrically connected one road USB Downsteam Part module; Described electric current, voltage sampling module are electrically connected a sampled signal and handle and modular converter, and described sampled signal is handled and modular converter is electrically connected mutually with an electric current and voltage display driver and display module, electric current and voltage value storage module, communication module respectively; Described USB Downsteam Part module is electrically connected mutually with described usb hub.
Described electric current, voltage sampling module are four the tunnel; Accordingly, described USB Downsteam Part module is four the tunnel; Described usb hub is GL850 USB2.04-Port Hub Controller IC; Described sampled signal is handled and modular converter is the C8501F340 single-chip microcomputer.
Compared with prior art, advantage of the present utility model is, because electric current, the voltage detecting functional module of its load are built in the usb hub, by it load current, voltage are carried out sample detecting, testing result shows by display device, by peripheral interface data is sent to target device (for example PC) simultaneously and further analyzes; Device interior also can be placed a storer, so that the record testing result reads out analysis after being convenient to.Both guaranteed the accuracy of its testing result, and testing result can have been stored, shown and transmits, and can carry out electric current and voltage again to product and detect with package casing.
Description of drawings
Fig. 1 is the utility model embodiment circuit structure block diagram.
Embodiment
According to embodiment and accompanying drawing the utility model is described in further detail below.
As shown in Figure 1, a kind of usb hub device with load current, voltage detecting function, comprise external power supply 1, USB Upsteam module 2, usb hub 3, described USB Upsteam module 2 is electrically connected mutually with usb hub 3, described external power supply 1, USB Upsteam module 2 insert several electric current, voltage sampling module 4 by voltage isolation handover module 6 respectively, and described every road electric current, voltage sampling module 4 all are electrically connected one road USB Downsteam Part module 5; Described electric current, voltage sampling module 4 insert a sampled signal and handle and modular converter 7, and described sampled signal is handled and modular converter 7 is electrically connected mutually with an electric current and voltage display driver and display module 71, electric current and voltage value storage module 72, communication module 73 respectively; Described USB Downsteam Part module 5 is electrically connected mutually with described usb hub 3.The voltage of external power supply 1 is 5V.
Described electric current, voltage sampling module 4 are four the tunnel; Accordingly, described USB Downsteam Part module 5 is four the tunnel.
Described usb hub 3 is GL850 USB2.04-Port Hub Controller IC; Sampled signal is handled and modular converter 7 is the C8501F340 single-chip microcomputer.
USB Upsteam module 2 is the USB upstream equipment; Downsteam Part module 5 is the USB upstream device.
Claims (3)
1, a kind of usb hub device with load current, voltage detecting function, comprise external power supply (1), USB Upsteam module (2), usb hub (3), described USB Upsteam module (2) is electrically connected mutually with usb hub (3), it is characterized in that: described external power supply (1), USB Upsteam module (2) insert several current/voltage sampling module (4) by a voltage isolation handover module (6) respectively, and described each road current/voltage sampling module (4) all is electrically connected one road USB Downsteam Part module (5); Described current/voltage sampling module (4) inserts a sampled signal and handles and modular converter (7), and described sampled signal is handled and modular converter (7) is electrically connected mutually with an electric current and voltage display driver and display module (71), an electric current and voltage value storage module (72), a communication module (73) respectively; Described USB Downsteam Part module (5) is electrically connected mutually with described usb hub (3).
2, the usb hub device with load current, voltage detecting function according to claim 1 is characterized in that: described electric current, voltage sampling module (4) are four the tunnel; Accordingly, described USBDownsteam Part module (5) is four the tunnel.
3, the usb hub device with load current, voltage detecting function according to claim 1 and 2 is characterized in that: described usb hub (3) is GL850USB2.04-Port Hub ControllerIC; Sampled signal is handled and modular converter (7) is the C8501F340 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201607887U CN201417447Y (en) | 2009-06-26 | 2009-06-26 | USB hub device having load current and voltage detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201607887U CN201417447Y (en) | 2009-06-26 | 2009-06-26 | USB hub device having load current and voltage detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201417447Y true CN201417447Y (en) | 2010-03-03 |
Family
ID=41793870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201607887U Expired - Fee Related CN201417447Y (en) | 2009-06-26 | 2009-06-26 | USB hub device having load current and voltage detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201417447Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106663077A (en) * | 2014-08-20 | 2017-05-10 | 密克罗奇普技术公司 | Low power connection detect method and system for usb charging |
| CN109116090A (en) * | 2017-06-23 | 2019-01-01 | 致伸科技股份有限公司 | Current/voltage measurement system and its method |
-
2009
- 2009-06-26 CN CN2009201607887U patent/CN201417447Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106663077A (en) * | 2014-08-20 | 2017-05-10 | 密克罗奇普技术公司 | Low power connection detect method and system for usb charging |
| CN106663077B (en) * | 2014-08-20 | 2020-03-17 | 密克罗奇普技术公司 | Low power connection detection method and system for charging universal serial bus |
| CN109116090A (en) * | 2017-06-23 | 2019-01-01 | 致伸科技股份有限公司 | Current/voltage measurement system and its method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202837403U (en) | Portable tester for mud resistivity | |
| CN111239617B (en) | Control method and device for charge and discharge test, storage medium and system | |
| CN103576092A (en) | Remote controller and device and method for detecting electricity capacity of battery of remote controller | |
| CN108242824A (en) | A kind of USB safe chargings monitoring for protection instrument | |
| CN201417447Y (en) | USB hub device having load current and voltage detection function | |
| CN101464503A (en) | Electric energy quality monitoring terminal | |
| CN201311447Y (en) | Voltage and current testing system | |
| CN202794340U (en) | High-voltage digital type insulation resistance tester | |
| CN202057736U (en) | Handheld power load control equipment fault detector | |
| CN202599446U (en) | Intelligent temperature and humidity detection sensor | |
| CN208537087U (en) | A kind of wireless standard dynamometer for on-site test | |
| CN202661610U (en) | Remote controller and detection device for electric quantity of battery thereof | |
| JP2011012994A (en) | Data recording device supplied with power from device for outputting data and data recording method for the device | |
| CN204203438U (en) | Storage battery discharge tester | |
| CN202103142U (en) | Intelligent storage battery | |
| CN201285425Y (en) | Electric energy quality analyzer | |
| CN212459857U (en) | Hand-held inductive load direct current resistance automatic measuring device | |
| CN103575997A (en) | High-voltage digital insulation resistance tester | |
| CN200986437Y (en) | Digitalized experiment system | |
| CN200990158Y (en) | Intelligent digital experimental apparatus | |
| CN202854238U (en) | Portable transformer direct current resistance tester | |
| CN207585835U (en) | Hand-held torque calibrator | |
| CN202649814U (en) | A portable characteristic tester of an intelligent controller | |
| CN107045080A (en) | Voltage check part, intelligent terminal and voltage detection method | |
| CN202649299U (en) | Lithium ion battery voltage data detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20130626 |