CN104750276A - Mouse computer - Google Patents
Mouse computer Download PDFInfo
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- CN104750276A CN104750276A CN201510160280.7A CN201510160280A CN104750276A CN 104750276 A CN104750276 A CN 104750276A CN 201510160280 A CN201510160280 A CN 201510160280A CN 104750276 A CN104750276 A CN 104750276A
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- mouse
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Abstract
The invention relates to a mouse computer, wherein the mouse computer comprises a motherboard arranged in the mouse; a VGA (Video Graphics Array) interface circuit, an USB (Universal Serial Bus) interface circuit, an SD card interface circuit and a power supply circuit are arranged on the motherboard; the VGA interface circuit is connected with a display, the USB interface circuit is connected with the mouse to realize key functions and mouse movement functions, and the SD card with an operating system is spliced in the SD card interface circuit. The mouse computer is small in volume, and the hard disk problem of the mouse computer can be solved. Various interface circuits in the mouse computer are simplified in structure, and thus the mouse computer is convenient to use; corresponding components are easy to purchase so that the cost is effectively reduced. Thus the mouse computer can be widely applied to the educating and learning industries.
Description
Technical field
The present invention relates to a kind of personal computer, particularly about a kind of mouse computer.
Background technology
At present, educator often can meet some problems in teaching process, and the computing machine in multi-media classroom in class hour classroom can not put the courseware required for oneself.Meanwhile, the computer of multi-media classroom due to user too much, a large amount of virus that so often made computer suffer, very inconvenient during use.If oneself carries computer, also relatively bother.There is corresponding problem too for students, there is upper machine operation in present most schools, requires that student completes on computers, if often carry the notebook of a few kilogram weight, for also comparatively heavy loaded down with trivial details student.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of small volume, mouse computer easy to use.
For achieving the above object, the present invention takes following technical scheme: a kind of mouse computer, it is characterized in that: it comprises one and is arranged on mainboard in mouse, described mainboard is provided with a USB interface circuit, a usb circuit, a SD card interface circuit and a power circuit; Described USB interface circuit is for connecting display, and described usb circuit is for connecting mouse itself to realize keypress function and the mouse locomotive function of itself, and described SD card interface circuit is used for the SD card that grafting is provided with operating system.
Two display interface pins of described USB interface circuit, level of synchronization signal pins and synchronous vertical signal pins connect an inductance respectively, described level of synchronization signal pins and synchronous vertical signal pins after described inductance, then distinguish a voltage stabilizing clamp circuit in parallel; Three simulating signal pins of described USB interface circuit output end export after voltage stabilizing clamp circuit described in parallel respectively.
Each described voltage stabilizing clamp circuit is composed in series by two voltage stabilizing diodes, and wherein voltage stabilizing diode positive pole described in connects power end, voltage stabilizing diode minus earth described in another.
The power pins of described usb circuit is in parallel with chip inductor one end and electric capacity one end, another termination power of described chip inductor, the other end ground connection of described electric capacity; Two data pin connect inductor, all the other pins all ground connection.
Described chip inductor adopts model to be the chip inductor of S0805.
Described SD card interface circuit adopts Internal SD chip, connects power supply after its four data pin, order/reply pin, SD card detection pin and write-protect pin are all connected in parallel to static balancing resistance; Power pins connects power supply after an inductance, and inductance described in this is connected two shunt capacitances with between described power pins; The equal ground connection of all the other pins.
Described power circuit adopts model to be the chip of APW7080, its input pin EN is in parallel with power input pin after connecting first resistance, pin UGND is also connected in parallel to described power input pin after connecting first electric capacity, and after in parallel, described power input pin connects power supply through two shunt capacitances; Pin FB connects one end of second resistor and second electric capacity respectively after a pull down resistor, after described second electric capacity other end is in parallel with described second resistor after the 3rd resistance, connects one end of two other shunt capacitance and inductance respectively; Ground connection after pin LX connection voltage stabilizing diode, described voltage stabilizing diode positive pole connects the other end of described inductance; Pin COMP connects resistance-capacitance circuit and the 5th shunt capacitance respectively; Power pins and the equal ground connection of grounding pin.
Described mainboard adopts model to be the mainboard of Vortex86MX.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is provided with a mainboard owing to adopting in mouse, and on this mainboard, be provided with USB interface circuit, usb circuit, SD card interface circuit and power circuit, the SD card being provided with operating system is plugged on SD card interface circuit, be equivalent to the hard disk of computer, the volume of mouse computer of the present invention can not only be made so very little, also solve the hard disk problem of mouse computer simultaneously.2, the present invention due to the various interface circuit structures adopted simple, easy to use, and corresponding components and parts material is convenient buys, and effectively reduces cost, can be widely used in the various industries such as education, study.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is USB interface electrical block diagram of the present invention;
Fig. 3 is usb circuit structural representation of the present invention;
Fig. 4 is SD card interface circuit structural representation of the present invention;
Fig. 5 is circuit construction of electric power schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes one and be arranged on mainboard 1 in mouse, mainboard 1 is provided with USB interface circuit 2, usb circuit 3, SD card interface circuit 4 and power circuit 5.Wherein, USB interface circuit 2 is for connecting display; Usb circuit 3, for connecting mouse itself, is realized the mouse locomotive function of itself, or realizes the keypress function of mouse, be namely equivalent to keyboard button function by mainboard 1 mouse beacon itself; SD card interface circuit 4, for grafting SD card, using the hard disk of SD card as mouse computer of the present invention, and is provided with corresponding operating system, the volume of mouse computer can not only be made so very little on this SD card, also solves the hard disk problem of mouse computer simultaneously.
In above-described embodiment, mainboard 1 adopts model to be the mainboard of Vortex86MX, and this mainboard is a typical SOC system, is integrated with CMOS, CPU and north and south bridge chip.
As shown in Figure 2, in above-described embodiment, two display interface pin DDCDAT with DDCCLK, level of synchronization signal pins HSYNC and synchronous vertical signal pins VSYNC of USB interface circuit 2 are connected an inductance L 1 respectively, level of synchronization signal pins HSYNC and synchronous vertical signal pins VSYNC after inductance L 1, then distinguishes a voltage stabilizing clamp circuit 21 in parallel; Three simulating signal pins rear output of a voltage stabilizing clamp circuit 21 in parallel respectively of USB interface circuit 2 output terminal.Wherein, each voltage stabilizing clamp circuit 21 is composed in series by two voltage stabilizing diode D1, and the positive pole of one of them voltage stabilizing diode D1 connects power end, the minus earth of another voltage stabilizing diode D1.
As shown in Figure 3, in above-described embodiment, the power pins of usb circuit 3 is in parallel with chip inductor F one end and electric capacity C1 one end, another termination power of chip inductor F, the other end ground connection of electric capacity C1.Two data pin DTO+ of usb circuit 3 are connected inductor L2 with DTO-, all the other pins all ground connection.
Wherein, chip inductor F of the present invention adopts model to be the chip inductor of S0805.
As shown in Figure 4, in above-described embodiment, SD card interface circuit 4 adopts Internal SD chip, its data pin DAT0 ~ DAT3, order/reply pin CMD, SD card detect after pin CardDetect and write-protect pin WritePotect is all connected in parallel to static balancing resistance RP and connect power supply, can compensate the imbalance that bias current produces by static balancing resistance RP; Power pins VDD connects power supply after an inductance L 3, inductance L 3 be connected two shunt capacitance C2, C3 between power pins VDD, with filtering high-frequency signal; The equal ground connection of all the other pins.
As shown in Figure 5, in above-described embodiment, power circuit 5 adopts model to be the chip of APW7080, in parallel with power input pin VIN after its input pin EN contact resistance R1, pin UGND is also connected in parallel to power input pin VIN after connecting electric capacity C4, and after in parallel, power input pin VIN connects power supply after two shunt capacitance C5, C6; Pin FB is difference contact resistance R2 and electric capacity C7 one end after a pull down resistor R, and the electric capacity C7 other end is in parallel with resistance R2 after another resistance R3, connects one end of shunt capacitance C8, C9 and inductance L 4 after parallel connection respectively; Ground connection after pin LX connection voltage stabilizing diode D2, the positive pole of this voltage stabilizing diode D2 connects the other end of inductance L 4; Pin COMP connects resistance-capacitance circuit RC and shunt capacitance C10 respectively; Power pins VCC and the equal ground connection of grounding pin GND.
The APW7080 that the present invention adopts is the converter of the PSM/PWM DC-DC step-down of a built-in P-MOS; make available less inductance and electric capacity just can reach little ripple to export; embedded digital soft start; built-in ON/OFF control and Overall Power Consumption is low in the off condition causes below 5uA, overheated overcurrent protection; low-voltage variation; than short-circuit protection advantageously, encapsulate little and apply simple.
The various embodiments described above are only for illustration of the present invention; the structure of each parts and connected mode all can change to some extent; on the basis of technical solution of the present invention; all improvement of carrying out the connection of individual part and structure according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a mouse computer, is characterized in that: it comprises the mainboard be arranged in mouse, described mainboard is provided with USB interface circuit, usb circuit, SD card interface circuit and power circuit; Described USB interface circuit is for connecting display, and described usb circuit is for connecting mouse itself to realize keypress function and the mouse locomotive function of itself, and described SD card interface circuit is used for the SD card that grafting is provided with operating system.
2. a kind of mouse computer as claimed in claim 1, it is characterized in that: two display interface pins of described USB interface circuit, level of synchronization signal pins and synchronous vertical signal pins connect an inductance respectively, described level of synchronization signal pins and synchronous vertical signal pins after described inductance, then distinguish a voltage stabilizing clamp circuit in parallel; Three simulating signal pins of described USB interface circuit output end export after voltage stabilizing clamp circuit described in parallel respectively.
3. a kind of mouse computer as claimed in claim 2, is characterized in that: each described voltage stabilizing clamp circuit is composed in series by two voltage stabilizing diodes, and wherein voltage stabilizing diode positive pole described in connects power end, voltage stabilizing diode minus earth described in another.
4. a kind of mouse computer as described in claim 1 or 2 or 3, is characterized in that: the power pins of described usb circuit is in parallel with chip inductor one end and electric capacity one end, another termination power of described chip inductor, the other end ground connection of described electric capacity; Two data pin connect inductor, all the other pins all ground connection.
5. a kind of mouse computer as claimed in claim 4, is characterized in that: described chip inductor adopts model to be the chip inductor of S0805.
6. a kind of mouse computer as described in claim 1 or 2 or 3, it is characterized in that: described SD card interface circuit adopts Internal SD chip, after its four data pin, order/reply pin, SD card detection pin and write-protect pin are all connected in parallel to static balancing resistance, connect power supply; Power pins connects power supply after an inductance, and inductance described in this is connected two shunt capacitances with between described power pins; The equal ground connection of all the other pins.
7. a kind of mouse computer as described in claim 1 or 2 or 3, it is characterized in that: described power circuit adopts model to be the chip of APW7080, its input pin EN is in parallel with power input pin after connecting first resistance, pin UGND is also connected in parallel to described power input pin after connecting first electric capacity, and after in parallel, described power input pin connects power supply through two shunt capacitances; Pin FB connects one end of second resistor and second electric capacity respectively after a pull down resistor, after described second electric capacity other end is in parallel with described second resistor after the 3rd resistance, connects one end of two other shunt capacitance and inductance respectively; Ground connection after pin LX connection voltage stabilizing diode, described voltage stabilizing diode positive pole connects the other end of described inductance; Pin COMP connects resistance-capacitance circuit and the 5th shunt capacitance respectively; Power pins and the equal ground connection of grounding pin.
8. a kind of mouse computer as described in claim 1 or 2 or 3, is characterized in that: described mainboard adopts model to be the mainboard of Vortex86MX.
9. a kind of mouse computer as claimed in claim 6, is characterized in that: described mainboard adopts model to be the mainboard of Vortex86MX.
10. a kind of mouse computer as claimed in claim 7, is characterized in that: described mainboard adopts model to be the mainboard of Vortex86MX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160280.7A CN104750276A (en) | 2015-04-03 | 2015-04-03 | Mouse computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160280.7A CN104750276A (en) | 2015-04-03 | 2015-04-03 | Mouse computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104750276A true CN104750276A (en) | 2015-07-01 |
Family
ID=53590094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510160280.7A Pending CN104750276A (en) | 2015-04-03 | 2015-04-03 | Mouse computer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104750276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867824A (en) * | 2019-12-18 | 2020-03-06 | 大唐半导体科技有限公司 | Power supply circuit for anti-explosion oil filling tax control machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374039Y (en) * | 2009-02-09 | 2009-12-30 | 东莞市奕东电子有限公司 | Multifunctional mouse |
| CN201741077U (en) * | 2010-08-02 | 2011-02-09 | 罗纯宾 | Portable mouse computer host |
| CN203366257U (en) * | 2013-08-08 | 2013-12-25 | 黄艳 | Mouse |
-
2015
- 2015-04-03 CN CN201510160280.7A patent/CN104750276A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374039Y (en) * | 2009-02-09 | 2009-12-30 | 东莞市奕东电子有限公司 | Multifunctional mouse |
| CN201741077U (en) * | 2010-08-02 | 2011-02-09 | 罗纯宾 | Portable mouse computer host |
| CN203366257U (en) * | 2013-08-08 | 2013-12-25 | 黄艳 | Mouse |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867824A (en) * | 2019-12-18 | 2020-03-06 | 大唐半导体科技有限公司 | Power supply circuit for anti-explosion oil filling tax control machine |
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Application publication date: 20150701 |
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