CN203871837U - Over-current protection system - Google Patents
Over-current protection system Download PDFInfo
- Publication number
- CN203871837U CN203871837U CN201420295696.0U CN201420295696U CN203871837U CN 203871837 U CN203871837 U CN 203871837U CN 201420295696 U CN201420295696 U CN 201420295696U CN 203871837 U CN203871837 U CN 203871837U
- Authority
- CN
- China
- Prior art keywords
- semiconductor device
- electrically connected
- power supply
- protection system
- triode
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses an over-current protection system which comprises a power supply and at least two triode semiconductor devices. The over-current protection system comprises a protection circuit. One end of the power supply is electrically connected to each triode semiconductor device, and the other end of the power supply is electrically connected to each triode semiconductor device through the protection circuit. A plurality of circuits can be protected by using only one protection circuit without installing a protection circuits for each circuit, thereby reducing the integral size of the device and lowering cost.
Description
Technical field
The utility model relates to the Over Current Protection System in signal sending and receiving equipment in a kind of automobile.
Background technology
In automobile for the Circuits System of receiving and transmitting signal; include many circuit that are connected on power supply; received by mistake the overcurrent phenomenon that power end causes for fear of transmitted signal end; need on each signal end, connect a protective circuit; therefore; on many circuit, need to install multiple protective circuits, cannot reduce the volume of whole equipment, and cost is higher.
Utility model content
In order to solve the problem that volume is large, cost is high of present equipment, the utility model provides a kind of new Over Current Protection System, can share a protective circuit by many circuit, thereby has solved the problem that volume is large, cost is high of equipment.
A kind of Over Current Protection System, it comprises a power supply and at least two triode semiconductor device.This Over Current Protection System comprises a protective circuit, and one end of this power supply and each triode semiconductor device are electrically connected, and the other end of this power supply is electrically connected by this protective circuit and each triode semiconductor device.
Preferably, this power supply comprises a positive pole and a negative pole, and this positive pole and each triode semiconductor device are electrically connected, and this negative pole is electrically connected by this protective circuit and each triode semiconductor device.
Preferably; each triode semiconductor device comprises first link, second link and a signal end; the positive pole of this power supply and this first link are electrically connected; the negative pole of this power supply and one end of this protective circuit are electrically connected, and the other end of this protective circuit and this second link are electrically connected.
Preferably, this protective circuit is a resettable fuse, and it can automatically recover to be electrically connected in the time that overcurrent disconnects after-current and recovers normal.
Preferably, triode semiconductor device is functional circuit or triode.
Compared with prior art; Over Current Protection System of the present utility model; all triode semiconductor device are all connected to this protective circuit; use a protective circuit just can realize the multiple circuit of protection; multiple protective circuits need to be installed on many circuit; thereby reduce the volume of whole equipment, and reduced cost.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the framework schematic diagram of the Over Current Protection System that provides of the utility model execution mode.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is made to further more detailed description.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, should belong to the scope that the utility model is protected.
Refer to Fig. 1, a kind of Over Current Protection System 10 that the utility model provides comprises a power supply 11, two triode semiconductor device 12 and protective circuits 13.Wherein, triode semiconductor device 12 can be functional circuit, can be also the concrete electronic components such as triode.In addition, the quantity of triode semiconductor device 12 can be also more than two, specifically can set according to circuit requirements.
This power supply 11 comprises a positive pole 111 and a negative pole 112.Each triode semiconductor device 12 comprises first link 121, the second link 122 and a signal end 123.The positive pole 111 of this power supply 11 is electrically connected with the first link 121 of this triode semiconductor device 12; negative pole 112 is electrically connected with one end of this protective circuit 13, and the second link 122 of the other end of this protective circuit 13 and this triode semiconductor device 12 is electrically connected.
In present embodiment, this protective circuit 13 is a resettable fuse, and it can automatically recover to be electrically connected in the time that overcurrent disconnects after-current and recovers normal.
In the time using this Over Current Protection System 10; when the signal end 123 of this triode semiconductor device 12 is arrived the positive pole 111 of this power supply 11 by misconnection; this power supply 11, this triode semiconductor device 12 and this protective circuit 13 form loop; thereby having large electric current flows through; now this Over Current Protection System 10 can disconnect, thereby whole circuit is played a protective role.Multiple triode semiconductor device 12 are not to work simultaneously; so all triode semiconductor device 12 are all connected to this protective circuit 13; use a protective circuit 13 just can realize the multiple circuit of protection; multiple protective circuits need to be installed on many circuit; thereby reduce the volume of whole equipment, and reduced cost.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion according to technical conceive of the present utility model, and all these change the protection range that all should belong to the utility model claim with distortion.
Claims (5)
1. an Over Current Protection System; it comprises a power supply and at least two triode semiconductor device; it is characterized in that; this Over Current Protection System comprises a protective circuit; one end of this power supply and each triode semiconductor device are electrically connected, and the other end of this power supply is electrically connected by this protective circuit and each triode semiconductor device.
2. Over Current Protection System as claimed in claim 1; it is characterized in that; this power supply comprises a positive pole and a negative pole, and this positive pole and each triode semiconductor device are electrically connected, and this negative pole is electrically connected by this protective circuit and each triode semiconductor device.
3. Over Current Protection System as claimed in claim 2; it is characterized in that; each triode semiconductor device comprises first link, second link and a signal end; the positive pole of this power supply and this first link are electrically connected; the negative pole of this power supply and one end of this protective circuit are electrically connected, and the other end of this protective circuit and this second link are electrically connected.
4. Over Current Protection System as claimed in claim 1, is characterized in that, this protective circuit is a resettable fuse, and it can automatically recover to be electrically connected in the time that overcurrent disconnects after-current and recovers normal.
5. Over Current Protection System as claimed in claim 1, is characterized in that, triode semiconductor device is functional circuit or triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295696.0U CN203871837U (en) | 2014-06-05 | 2014-06-05 | Over-current protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295696.0U CN203871837U (en) | 2014-06-05 | 2014-06-05 | Over-current protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871837U true CN203871837U (en) | 2014-10-08 |
Family
ID=51652759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420295696.0U Expired - Fee Related CN203871837U (en) | 2014-06-05 | 2014-06-05 | Over-current protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871837U (en) |
-
2014
- 2014-06-05 CN CN201420295696.0U patent/CN203871837U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104704704B (en) | A kind of charging circuit and terminal | |
| CN103346552B (en) | A kind of reverse-connection preventing circuit | |
| CN105591538A (en) | Universal serial bus power transmission device | |
| CN201868837U (en) | USB (universal serial bus) circuit | |
| CN202678968U (en) | Communication protecting circuit and air conditioner adopting the communication protecting circuit | |
| CN203871837U (en) | Over-current protection system | |
| CN103297032A (en) | Anti-backflow circuit of multiplex interface | |
| CN205610225U (en) | Transformer excess load automatic switching control equipment | |
| CN204732623U (en) | With the earth leakage protective socket of intelligent control function | |
| CN204118718U (en) | The system that a kind of POE Ethernet provides surge energy to control | |
| CN204559224U (en) | A kind of wireless electric power monitoring system | |
| CN203967752U (en) | Be connected to the protective device between power supply and power supply unit thereof | |
| CN203722226U (en) | Lightning protection device integrating lightning protection, signal transmission and power supply into one body | |
| CN104377677B (en) | Surge protection device of end-span method active Ethernet | |
| CN104113054A (en) | Combined type anti-thunder equipment capable of preventing concentrated copy electric energy meter from being damaged by thunder and lightning | |
| CN205005035U (en) | Can realize that high level arrives low level conversion's output interface circuit | |
| CN205355779U (en) | Excessive pressure current foldback circuit with long -range notice function | |
| CN204597472U (en) | A kind of lightning protection circuit for electronic equipment RS232 signaling interface | |
| CN204480242U (en) | A kind of M-Bus interface circuit | |
| CN204156522U (en) | A kind of surge protector of end cross-over connection method active Ethernet | |
| CN203787719U (en) | Transformer station secondary loop connection device | |
| CN205231730U (en) | Full -automatic protection circuit power supply ware | |
| CN203377583U (en) | Holder RS485 communication interface protection circuit | |
| CN105739663A (en) | USB power control circuit | |
| CN206962424U (en) | USB interface protection circuit |
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 |
Granted publication date: 20141008 Termination date: 20170605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |