CN204117087U - A kind of on-off controller started for single board computer system - Google Patents
A kind of on-off controller started for single board computer system Download PDFInfo
- Publication number
- CN204117087U CN204117087U CN201420517263.5U CN201420517263U CN204117087U CN 204117087 U CN204117087 U CN 204117087U CN 201420517263 U CN201420517263 U CN 201420517263U CN 204117087 U CN204117087 U CN 204117087U
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- pin
- chip
- board computer
- single board
- resistance
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Abstract
The utility model relates to for single board computer operate system components, particularly relates to a kind of on-off controller started for single board computer system.The design comprise monostalbe trigger and with door, monostalbe trigger adopts 74AHCT123A chip, 74HCT2G08 chip is adopted with door, excitation is utilized to provide height pulse triggering signal, make to export for high low pulse signal, process and door realize two low pulses that constant time intervals appears in output terminal within a certain period of time, realize the startup to single board computer system and closedown.By design of the present utility model, solve other module of complete machine well and power on and the afoul contradiction of single card microcomputer os starting.The design has following characteristics simultaneously: 1, real-time is good, and switch degree of stability is high; 2, mentality of designing is novel, and switching response speed is fast; 3, circuit structure is simple, does not take multi-control resource, complete simulated implementation; 4, debugging is simple, uses comparatively flexible.
Description
Technical field
The utility model relates to for single board computer operate system components, particularly relates to a kind of on-off controller started for single board computer system.
Background technology
Veneer PC module can be used in present most equipment inside, and single board computer primary power and operating system switch control the main flow having become device power supply (DPS) switch at present respectively.But because multimode powers on and single card microcomputer os starting easily produces afoul problem in legacy equipment.
Summary of the invention
The purpose of this utility model is the deficiency existed for prior art, provides a kind of on-off controller started for single board computer system especially.
Taked for achieving the above object technical scheme of the utility model is: a kind of on-off controller started for single board computer system, it is characterized in that: comprise monostalbe trigger U1 and with door U2, monostalbe trigger U1 adopts 74AHCT123A chip, 74HCT2G08 chip is adopted with door U2, one end of the switch BP1 of power supply input switching circuit is connected to+12V_IN excitation end, one end is connected to one end of pull down resistor R1 and 2 pin of 74AHCT123A chip and 9 pin in addition, the other end ground connection of resistance R1, 3 pin of 74AHCT123A chip connect+5V power supply by resistance R2, 6 pin connect one end of 7 pin and resistance R4 by electric capacity C4, another termination+5V power supply of resistance R4, 1 pin of 74AHCT123A chip, 8 pin ground connection, 10 pin, 11 pin are respectively through resistance R6, resistance R5 connects+5V power supply, 14 pin connect one end of 15 pin and resistance R3 by electric capacity C2, another termination+5V power supply of resistance R3, 16 pin of 74AHCT123A chip connect+5V power supply simultaneously by electric capacity C1 ground connection, 4 pin of 74AHCT123A chip and 12 pin are connected to 1 pin and 2 pin of 74HCT2G08 chip respectively, 4 pin ground connection of 74HCT2G08 chip, 8 pin connect+5V power supply simultaneously by electric capacity C3 ground connection, 7 pin of 74HCT2G08 chip are output pin, be connected to the switch triggering pin of single board computer.
The beneficial effects of the utility model and feature: by design of the present utility model, well solve other module of complete machine and power on and the afoul contradiction of single card microcomputer os starting.The design has following characteristics simultaneously: 1, real-time is good, and switch degree of stability is high; 2, mentality of designing is novel, and switching response speed is fast; 3, circuit structure is simple, does not take multi-control resource, complete simulated implementation; 4, debugging is simple, uses comparatively flexible.
Accompanying drawing explanation
Fig. 1 is the utility model electrical schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to Fig. 1, the design adopts monostalbe trigger (74AHCT123A chip), excitation is utilized to provide height pulse triggering signal, make to export for high low pulse signal, process and door (74HCT2G08 chip) realize two low pulses that constant time intervals appears in output terminal within a certain period of time, realize the startup to single board computer system and closedown.
Claims (1)
1. the on-off controller started for single board computer system, it is characterized in that: comprise monostalbe trigger U1 and with door U2, monostalbe trigger U1 adopts 74AHCT123A chip, 74HCT2G08 chip is adopted with door U2, one end of the switch BP1 of power supply input switching circuit is connected to+12V_IN excitation end, one end is connected to one end of pull down resistor R1 and 2 pin of 74AHCT123A chip and 9 pin in addition, the other end ground connection of resistance R1, 3 pin of 74AHCT123A chip connect+5V power supply by resistance R2, 6 pin connect one end of 7 pin and resistance R4 by electric capacity C4, another termination+5V power supply of resistance R4, 1 pin of 74AHCT123A chip, 8 pin ground connection, 10 pin, 11 pin are respectively through resistance R6, resistance R5 connects+5V power supply, 14 pin connect one end of 15 pin and resistance R3 by electric capacity C2, another termination+5V power supply of resistance R3, 16 pin of 74AHCT123A chip connect+5V power supply simultaneously by electric capacity C1 ground connection, 4 pin of 74AHCT123A chip and 12 pin are connected to 1 pin and 2 pin of 74HCT2G08 chip respectively, 4 pin ground connection of 74HCT2G08 chip, 8 pin connect+5V power supply simultaneously by electric capacity C3 ground connection, 7 pin of 74HCT2G08 chip are output pin, be connected to the switch triggering pin of single board computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517263.5U CN204117087U (en) | 2014-09-10 | 2014-09-10 | A kind of on-off controller started for single board computer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517263.5U CN204117087U (en) | 2014-09-10 | 2014-09-10 | A kind of on-off controller started for single board computer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204117087U true CN204117087U (en) | 2015-01-21 |
Family
ID=52334378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420517263.5U Expired - Fee Related CN204117087U (en) | 2014-09-10 | 2014-09-10 | A kind of on-off controller started for single board computer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204117087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018214467A1 (en) * | 2017-05-22 | 2018-11-29 | 李金权 | Computer switching control device |
-
2014
- 2014-09-10 CN CN201420517263.5U patent/CN204117087U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018214467A1 (en) * | 2017-05-22 | 2018-11-29 | 李金权 | Computer switching control device |
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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: 20150121 Termination date: 20180910 |