CN106155261A - Computer power supply system protection circuit - Google Patents
Computer power supply system protection circuit Download PDFInfo
- Publication number
- CN106155261A CN106155261A CN201610713896.7A CN201610713896A CN106155261A CN 106155261 A CN106155261 A CN 106155261A CN 201610713896 A CN201610713896 A CN 201610713896A CN 106155261 A CN106155261 A CN 106155261A
- Authority
- CN
- China
- Prior art keywords
- resistance
- changer
- protection circuit
- diode
- photoelectrical coupler
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of computer system power source protection circuit, relate to computer equipment manufacturing technology field；Including with the first resistance, described first resistance, photoelectrical coupler and Thyristors in series, the outfan of described photoelectrical coupler is connected with the INHIBITORY-gate of DC/DC changer, the triggering end of described IGCT is parallel with the second resistance and electric capacity, the parallel connections of the second resistance and electric capacity is connected with the anode of diode, and the negative electrode of described diode is connected with the outfan of described DC/DC changer.The present invention can solve to produce the problem that overvoltage computer-chronograph system is damaged.
Description
Technical field
The present invention relates to computer equipment manufacturing technology field, a kind of protection electricity for computer system power source
Road.
Background technology
The CD/CD changer of computer typically uses VI-J100 changer, and this changer is not provided with overvoltage and protects
Protect, when producing overvoltage, often make system for computer be damaged.
Summary of the invention
It is an object of the invention to provide a kind of computer system power source protection circuit, it calculates when can solve to produce overvoltage
The problem that machine system is damaged.
In order to solve the problems referred to above, the technical solution used in the present invention is: this computer system power source protection circuit, bag
Include and the first resistance, described first resistance, photoelectrical coupler and Thyristors in series, the outfan of described photoelectrical coupler and DC/
The INHIBITORY-gate of DC changer connects, and the triggering end of described IGCT is parallel with the second resistance and electric capacity, the second resistance and electric capacity
Parallel connections is connected with the anode of diode, and the negative electrode of described diode is connected with the outfan of described DC/DC changer.
Owing to have employed technique scheme, the present invention compared with prior art, has the beneficial effect that the present invention sets
Being equipped with IGCT and photoelectrical coupler, when there being overvoltage to occur, IGCT can turn off DC/DC changer by photoelectrical coupler
INHIBITORY-gate, thus protect computer system.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Computer system power source protection circuit shown in Fig. 1, the first resistance R1, photoelectrical coupler E and IGCT V1 series connection, photoelectricity
The outfan of bonder E is connected with the INHIBITORY-gate of DC/DC changer 1, the triggering end of IGCT V1 be parallel with the second resistance R2 and
Electric capacity C, the parallel connections of the second resistance R2 and electric capacity C is connected with the anode of diode V2, and the negative electrode of diode V2 becomes with DC/DC
The outfan of parallel operation 1 connects.When+5 volt electric voltage over press, utilizing+15 volt voltages to make IGCT V1 turn on, IGCT V1 makes photoelectricity
Bonder E saturation conduction, thus turn off the INHIBITORY-gate of DC/DC changer 1, make DC/DC changer 1 be output as zero, it is to avoid
Overvoltage seals in system, thus protects system.When there is thunderbolt, diode V2 can absorb the voltage of transition, it is to avoid
System is damaged by the voltage of transition.
Claims (1)
1. a computer system power source protection circuit, including with the first resistance (R1), it is characterised in that: described first resistance
(R1), photoelectrical coupler (E) and IGCT (V1) series connection, the outfan of described photoelectrical coupler (E) and DC/DC changer (1)
INHIBITORY-gate connect, the triggering end of described IGCT (V1) is parallel with the second resistance (R2) and electric capacity (C), the second resistance (R2) and
The parallel connections of electric capacity (C) is connected with the anode of diode (V2), the negative electrode of described diode (V2) and described DC/DC changer
(1) outfan connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610713896.7A CN106155261A (en) | 2016-08-24 | 2016-08-24 | Computer power supply system protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610713896.7A CN106155261A (en) | 2016-08-24 | 2016-08-24 | Computer power supply system protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106155261A true CN106155261A (en) | 2016-11-23 |
Family
ID=57342703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610713896.7A Pending CN106155261A (en) | 2016-08-24 | 2016-08-24 | Computer power supply system protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106155261A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058543U (en) * | 1989-03-16 | 1990-06-20 | 张凌飞 | Three-phase power solid-state contactor |
| CN2081174U (en) * | 1990-11-08 | 1991-07-17 | 张凌飞 | Reversible solid-state contactor |
| CN1266308A (en) * | 1999-03-03 | 2000-09-13 | 梅卫平 | 2* number sequence independent voltage type DA converter |
| CN204720966U (en) * | 2015-07-01 | 2015-10-21 | 深圳市安瑞吉科技有限公司 | DC-DC power source output overcurrent short-circuit protection circuit |
| CN105337263A (en) * | 2015-11-13 | 2016-02-17 | 华南理工大学 | Output overvoltage protection circuit and method for DC/DC converter |
-
2016
- 2016-08-24 CN CN201610713896.7A patent/CN106155261A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058543U (en) * | 1989-03-16 | 1990-06-20 | 张凌飞 | Three-phase power solid-state contactor |
| CN2081174U (en) * | 1990-11-08 | 1991-07-17 | 张凌飞 | Reversible solid-state contactor |
| CN1266308A (en) * | 1999-03-03 | 2000-09-13 | 梅卫平 | 2* number sequence independent voltage type DA converter |
| CN204720966U (en) * | 2015-07-01 | 2015-10-21 | 深圳市安瑞吉科技有限公司 | DC-DC power source output overcurrent short-circuit protection circuit |
| CN105337263A (en) * | 2015-11-13 | 2016-02-17 | 华南理工大学 | Output overvoltage protection circuit and method for DC/DC converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |