CN203689510U - Integrated embedded type USB (Universal Serial Bus) driver element of monitoring system - Google Patents
Integrated embedded type USB (Universal Serial Bus) driver element of monitoring system Download PDFInfo
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- CN203689510U CN203689510U CN201320860381.1U CN201320860381U CN203689510U CN 203689510 U CN203689510 U CN 203689510U CN 201320860381 U CN201320860381 U CN 201320860381U CN 203689510 U CN203689510 U CN 203689510U
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- usb
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- driver element
- circuit
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Abstract
The utility model discloses an integrated embedded type USB driver element of a monitoring system. The USB driver element comprises a USB power management and data transmission unit, a power circuit, a data transceiver controller, a USB interface unit and an ARM (Advanced RISC Machines) system, wherein a data end of the USB interface unit transmits data signals which are coupled through resistors to a data input end of the USB data transceiver controller; the USB data transceiver controller performs information exchange with an ARM signal processing chip to finish data decoding, format conversion and storage; the power circuit generates 5 V and 3.3 V voltage required by the USB circuit; the USB power management and data transmission unit provides accurate current-limiting voltage required by the external USB equipment, and has overload and over-temperature protecting functions so as to ensure the system to work normally. The integrated embedded type USB driver element disclosed by the utility model ensures the data transmission accuracy of the system and the security reliability of the system, and is good in the detecting effect, high in the protecting performance, and safe and reliable in operation as the circuit design is reasonably simplified.
Description
Technical field
The utility model belongs to electron controls technology field, and what be specifically related to is integrated built-in monitor system USB driver element.
Background technology
USB is the abbreviation of English Universal Serial BUS, and Chinese implication is USB (universal serial bus).What the utility model designed is integrated built-in monitor system USB driver element, it can complete the data transmission of the accurate USB of real time high-speed, once the bottom USB driver execution work in ARM, can carry out real-time data interaction between this element and ARM controller pin.The utility model can be applied in fields such as communication, automotive electronics, space flight, navigation, aviations.
Summary of the invention
The utility model is integrated built-in monitor system USB driver element, it can be the physical connection of usb circuit and computing machine or equipment end, the hardware transmitting-receiving interface of bus is provided, realize electric and logic function bottom, complete upper-layer protocol processing, data transmit-receive control and voltage-regulation.
In order to achieve the above object, the utility model is achieved in that what integrated built-in monitor system USB driver element was made up of unit, power circuit, usb circuit, data receiving and transmitting controller and the ARM system of USB power management and data transmission, the unit that it is characterized in that USB power management and data transmission is connected with data receiving and transmitting controller electric signal with usb circuit, data receiving and transmitting controller is connected with ARM system electric signal, and power circuit is unit, usb circuit, the data receiving and transmitting controller power supply of USB power management and data transmission.
The features such as the utility model has guaranteed the accuracy of the data transmission of system, has guaranteed the safe reliability of system, and circuit design simple is reasonable, has detection effective, and protective value is high, safe and reliable to operation.
Accompanying drawing explanation
Fig. 1 is the utility model power circuit principle Fig. 1;
Fig. 2 is the utility model power circuit principle Fig. 2;
Fig. 3 is the utility model power circuit principle Fig. 3;
Fig. 4 is the utility model data receiving and transmitting controller circuit theory Fig. 1;
Fig. 5 is the utility model data receiving and transmitting controller circuit theory Fig. 2;
Fig. 6 is the element circuit schematic diagram of the utility model USB power management and data transmission;
Fig. 7 is the utility model system principle diagram.
Embodiment
Below in conjunction with accompanying drawing, specifically the utility model is described in further detail:
Integrated built-in monitor system USB driver element is made up of unit, power circuit, usb circuit, data receiving and transmitting controller and the ARM system of USB power management and data transmission, the unit of USB power management and data transmission is connected with data receiving and transmitting controller electric signal with usb circuit, data receiving and transmitting controller is connected with ARM system electric signal, and power circuit is unit, usb circuit, the data receiving and transmitting controller power supply of USB power management and data transmission.Principle of work of the present utility model is, the data terminal of usb interface unit is connected respectively to data-signal the data input pin of usb data transceiver controller, the interface data wire of data receiving and transmitting controller is connected with ARM system processor by input/output signal, and and ARM system signal process chip information interaction, complete data decode, format conversion and storage; Power circuit produces required 5V and the 3.3V voltage of USB circuit, for unit, usb circuit, the data receiving and transmitting controller power supply of USB power management and data transmission, the unit of USB power management and data transmission provides external USB equipment the required voltage of current limliting accurately.
Specific embodiment:
After integrated built-in monitor system USB driver element powers on, USB power circuit is started working, USB2.0 high speed HUB data receiving and transmitting controller USB25141-AEZG crystal oscillator starting of oscillation work, USB power management chip MAX890LESA powers for outside USB device provides 5V accurately, outside USB normally works, and can receive normally and send data.When once system occurs overload, overcurrent, overheatedly exceedes the problems such as 135 degrees Celsius as temperature, USB power management chip MAX890LESA fault-signal pin output low level, fault-signal enables chip and does not work and protect.
Power circuit: power circuit part mainly comprises that electromagnetic interference (EMI) EMI design, voltage transitions 12V turn 5V and 5V and turn the design of 3.3V.The military electromagnetic interface filter of TF101A3M has been selected in EMI design, selected non-return diode 1N4007 at the positive input terminal of power supply, between the negative input end of power supply and PE 18V voltage dependent resistor (VDR) 180KD14 in parallel and 18V stabilivolt 1.5KE18CA, the common mode protected mode of composition power supply; C306 output filter capacitor is selected the electrochemical capacitor of 100uF/25V, the low-frequency ripple in main filtering circuit.12V turns 5V part and selects LD1117S50CTR type level transferring chip U309, and input and output part all adds filter capacitor.5V turns 3.3V part and selects LD1117S33CTR type level transferring chip U304, and input and output part has also all added filter capacitor.
Data receiving and transmitting controller: usb data transceiver controller is USB2.0 high speed HUB data receiving and transmitting controller U602, its model is USB25141-AEZG type, the clock circuit of controller adopts the passive crystal oscillator starting of oscillation work of 24M, the power pins 3.3V voltage of USB25141-AEZG is all connected to filter capacitor, USB port power supply can make the integrated logic IC chip of the external Sheffer stroke gate of pin USB1_PWR_EN MC74VHC1G00DFT2G carry out negate, make its acquiescence output low level, supply with the power management chip U603 of USB, its model of power management chip is MAX890LESA type, it can make pin is Low level effective, assurance power management chip is normally worked.
The unit of USB power management and data transmission: USB power management chip MAX890LESA provides adjustable accurate current-limiting protection for USB; prevent subsequent conditioning circuit impact failure; its input voltage range is 2.7V-5.5V; output voltage range is 3V-5V; the cut-off current 1.38K/R610 arranging; in circuit, R610 choosing value is 1.5K, guarantees that its maximum current is 0.92A, also has overload and overheat protector function in this circuit.
Claims (4)
1. integrated built-in monitor system USB driver element is made up of unit, power circuit, usb circuit, data receiving and transmitting controller and the ARM system of USB power management and data transmission, the unit that it is characterized in that USB power management and data transmission is connected with data receiving and transmitting controller electric signal with usb circuit, data receiving and transmitting controller is connected with ARM system electric signal, and power circuit is unit, usb circuit, the data receiving and transmitting controller power supply of USB power management and data transmission.
2. integrated built-in monitor system USB driver element according to claim 1, is characterized in that described USB power management and the unit power management chip used of data transmission are MAX890LESA types.
3. integrated built-in monitor system USB driver element according to claim 1, is characterized in that the chip that described power circuit voltage transitions is used is LD1117S50CTR type and LD1117S33CTR type.
4. integrated built-in monitor system USB driver element according to claim 1, is characterized in that the chip that described data receiving and transmitting controller uses is USB25141-AEZG type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860381.1U CN203689510U (en) | 2013-12-25 | 2013-12-25 | Integrated embedded type USB (Universal Serial Bus) driver element of monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860381.1U CN203689510U (en) | 2013-12-25 | 2013-12-25 | Integrated embedded type USB (Universal Serial Bus) driver element of monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203689510U true CN203689510U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320860381.1U Expired - Fee Related CN203689510U (en) | 2013-12-25 | 2013-12-25 | Integrated embedded type USB (Universal Serial Bus) driver element of monitoring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203689510U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929755A (en) * | 2014-07-25 | 2016-09-07 | 山东中鸿云计算技术有限公司 | Intelligent control cloud terminal USB hub module |
| CN107341119A (en) * | 2017-07-05 | 2017-11-10 | 深圳市宇峰通讯设备有限公司 | Data transmission circuit and its communication means and multifunctional base |
-
2013
- 2013-12-25 CN CN201320860381.1U patent/CN203689510U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929755A (en) * | 2014-07-25 | 2016-09-07 | 山东中鸿云计算技术有限公司 | Intelligent control cloud terminal USB hub module |
| CN106094623A (en) * | 2014-07-25 | 2016-11-09 | 山东中鸿云计算技术有限公司 | A kind of cloud terminal USB set wire module carrying out managing concentratedly |
| CN105929755B (en) * | 2014-07-25 | 2018-06-12 | 山东中鸿云计算技术有限公司 | A kind of cloud terminal USB set wire module of achievable intelligentized control method |
| CN106094623B (en) * | 2014-07-25 | 2018-08-07 | 山东中鸿云计算技术有限公司 | A kind of cloud terminal USB set wire module managed concentratedly |
| CN107341119A (en) * | 2017-07-05 | 2017-11-10 | 深圳市宇峰通讯设备有限公司 | Data transmission circuit and its communication means and multifunctional base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20191225 |