CN203552254U - Hot plug protecting circuit of circuit board - Google Patents
Hot plug protecting circuit of circuit board Download PDFInfo
- Publication number
- CN203552254U CN203552254U CN201320648129.4U CN201320648129U CN203552254U CN 203552254 U CN203552254 U CN 203552254U CN 201320648129 U CN201320648129 U CN 201320648129U CN 203552254 U CN203552254 U CN 203552254U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- hot plug
- pin
- base
- pci
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a hot plug protecting circuit of a circuit board. The circuit board and a base plugging board are connected by a circuit plate PCI-E interface (peripheral component interconnect-express) and a base PCI-E interface. The base plugging board comprises a PMOS (P-channel metal oxide semiconductor) tube, wherein an electrode D of the PMOS tube is connected with a base power supply, an electrode S of the PMOS tube is connected with a base power supply pin, an electrode G of the PMOS tube is connected with a second hot plug detection pin of the base, and is also connected with the electrode S through a resistor, a first hot plug detection pin of the circuit board is connected with the second hot plug detection pin of the circuit board, and a first hot plug detection pin of the base is grounded. The hot plug protecting circuit of the circuit board has the advantages that the structure is simple, the manufacturing cost is low, the reliable hot plug operation of the circuit board is realized, and the wide application range and economic value are realized.
Description
Technical field
The utility model relates to a kind of circuit board hot plug holding circuit.
Background technology
External splicer/hybrid matrix is generally inserted on a base plate and is formed by polylith circuit board, in actual use procedure, if certain piece circuit board breaks down, in order not affect user's use, likely not power-off, adopts the mode of hot plug to change this faulty circuit plate; In plug process, owing to teetertottering, if do not do special processing, may cause short circuit, cause larger fault, and in existing external splicer/hybrid matrix, generally to adopt special-purpose connector, realize reliable hot plug, and these connectors are expensive, complex structure, are difficult to be widely applied.
Utility model content
For above-mentioned technical matters, technical problem to be solved in the utility model is to provide a kind of simple in structure, with low cost, can realize the circuit board hot plug holding circuit of reliable hot plug operations simultaneously.
The utility model is in order to solve the problems of the technologies described above by the following technical solutions: the utility model has designed a kind of circuit board hot plug holding circuit, comprise circuit board and base plate, wherein, circuit board comprises circuit board PCI-E interface, and base plate comprises base power and the base PCI-E interface corresponding with circuit board PCI-E interface; Circuit board PCI-E interface comprises that circuit board the first hot plug detects pin, circuit board the second hot plug detects pin, circuit board energization pins and the mutual pin of several circuit board signal; Base PCI-E interface comprise with circuit board the first hot plug detect the first hot plug of the corresponding base of pin detect pin, with circuit board the second hot plug detect the second hot plug of the corresponding base of pin detect pin, with the corresponding base for supplying power pin of circuit board energization pins and with the mutual pin of the several circuit board signals corresponding mutual pin of several base signals respectively; Between circuit board and base plate, by circuit board PCI-E interface, base PCI-E interface, connect; Described base plate also comprises PMOS pipe, the D utmost point of PMOS pipe is connected with base power, and the S utmost point of PMOS pipe is connected with base for supplying power pin, and the G utmost point of PMOS pipe detects pin with base the second hot plug and is connected, meanwhile, between the G utmost point of PMOS pipe and the S utmost point, by resistance, be connected; Circuit board the first hot plug detects pin and is connected with circuit board the second hot plug detection pin, and base the first hot plug detects pin ground connection.
As a kind of optimal technical scheme of the present utility model: on described circuit board PCI-E interface, circuit board the first hot plug detects the length of pin and length that circuit board the second hot plug detects pin is all less than the length of circuit board energization pins and the length of the mutual pin of several circuit board signals.
As a kind of optimal technical scheme of the present utility model: described PMOS pipe is IRF7425.
A kind of circuit board hot plug holding circuit described in the utility model adopts above technical scheme compared with prior art, has following technique effect:
(1) the circuit board hot plug holding circuit of the utility model design, without adopting special-purpose expensive connector, greatly reduces manufacturing cost, can complete reliably hot plug operations, is the replacing of circuit board, and effective guarantee is provided;
(2) the circuit board hot plug holding circuit of the utility model design, simple in structure, manufacturing process is simple, has not only saved energy consumption, starting material, and has effectively improved production work efficiency;
(3) in the circuit board hot plug holding circuit of the utility model design, circuit board the first hot plug detects the length of pin and the length of circuit board the second hot plug detection pin is all less than the length of circuit board energization pins and the length of the mutual pin of several circuit board signals, effectively control the power supply order in circuit board hot plug process, guaranteed the reliability in hot plug process;
(4) in the circuit board hot plug holding circuit of the utility model design, without software control, greatly improved circuit reliability of operation.
Accompanying drawing explanation
Fig. 1 is the insertion schematic diagram of the circuit board hot plug holding circuit of the utility model design;
Fig. 2 be the utility model design circuit board hot plug holding circuit extract schematic diagram.
Embodiment
Below in conjunction with Figure of description, embodiment of the present utility model is described in further detail.
As shown in Figure 1, the utility model has designed a kind of circuit board hot plug holding circuit, comprises circuit board and base plate, wherein, circuit board comprises circuit board PCI-E interface, and base plate comprises base power and the base PCI-E interface corresponding with circuit board PCI-E interface; Circuit board PCI-E interface comprises that circuit board the first hot plug detects pin, circuit board the second hot plug detects pin, circuit board energization pins and the mutual pin of several circuit board signal; Base PCI-E interface comprise with circuit board the first hot plug detect the first hot plug of the corresponding base of pin detect pin, with circuit board the second hot plug detect the second hot plug of the corresponding base of pin detect pin, with the corresponding base for supplying power pin of circuit board energization pins and with the mutual pin of the several circuit board signals corresponding mutual pin of several base signals respectively; Between circuit board and base plate, by circuit board PCI-E interface, base PCI-E interface, connect; Described base plate also comprises PMOS pipe, the D utmost point of PMOS pipe is connected with base power, and the S utmost point of PMOS pipe is connected with base for supplying power pin, and the G utmost point of PMOS pipe detects pin with base the second hot plug and is connected, meanwhile, between the G utmost point of PMOS pipe and the S utmost point, by resistance, be connected; Circuit board the first hot plug detects pin and is connected with circuit board the second hot plug detection pin, and base the first hot plug detects pin ground connection.
The circuit board hot plug holding circuit of the utility model design, without adopting special-purpose expensive connector, greatly reduces manufacturing cost, can complete reliably hot plug operations, is the replacing of circuit board, and effective guarantee is provided; And manufacturing process is simple, has not only saved energy consumption, starting material, and effectively improved production work efficiency.
As a kind of optimal technical scheme of the present utility model: on described circuit board PCI-E interface, circuit board the first hot plug detects the length of pin and the length of circuit board the second hot plug detection pin is all less than the length of circuit board energization pins and the length of the mutual pin of several circuit board signals, effectively control the power supply order in circuit board hot plug process, guaranteed the reliability in hot plug process.
As a kind of optimal technical scheme of the present utility model: described PMOS pipe is IRF7425.
In the circuit board hot plug holding circuit of the utility model design, without software control, greatly improved circuit reliability of operation.
As shown in Figure 1, when the circuit board of the utility model design needs inserted base plate, between circuit board and base plate, pass through circuit board PCI-E interface, base PCI-E interface connects, on circuit board PCI-E interface, circuit board the first hot plug detects the length of pin and the length of circuit board the second hot plug detection pin is all less than the length of circuit board energization pins and the length of the mutual pin of several circuit board signals, so when circuit board PCI-E interface inserted base PCI-E interface, circuit board the first hot plug detects pin and circuit board the second hot plug detects pin with respect to other pin in circuit board PCI-E interface, to postpone to detect pin with corresponding base the first hot plug contacts with base the second hot plug detection pin a little while, when all pins between circuit board PCI-E interface and base PCI-E interface are all one by one during corresponding contact, because detecting pin, circuit board the first hot plug is connected with circuit board the second hot plug detection pin, and base the first hot plug detects pin ground connection, so now, base the second hot plug detects pin ground connection too, the G utmost point ground connection of the PMOS pipe being connected with base the second hot plug detection pin, because the G utmost point of PMOS pipe connects low level, so the S utmost point and D utmost point UNICOM in PMOS pipe, now, base power is successively through the D of the PMOS pipe utmost point, the S utmost point of PMOS pipe, base for supplying power pin, circuit board energization pins is powered for this circuit board, meanwhile, the mutual pin of circuit board signal between this circuit board and this base plate, it is mutual that the mutual pin of base signal carries out signal, based on above process, because circuit board the first hot plug detects pin and circuit board the second hot plug detects pin with respect to other pin in circuit board PCI-E interface, to postpone to detect pin with corresponding base the first hot plug contacts with base the second hot plug detection pin a little while, make circuit board only during the assigned address in accurate inserted base plate, base plate just can be powered for circuit board, and then it is mutual to realize signal, accurately control the power supply order in circuit board inserted base plate process, guaranteed the security in the slotting process of circuit board heat.
As shown in Figure 2, when the circuit board of the utility model design need to be extracted from base plate, equally due on circuit board PCI-E interface, circuit board the first hot plug detects the length of pin and the length of circuit board the second hot plug detection pin is all less than the length of circuit board energization pins and the length of the mutual pin of several circuit board signals, so when circuit board PCI-E interface is extracted from base PCI-E interface, circuit board the first hot plug detects pin and circuit board the second hot plug detects pin with respect to other pin in circuit board PCI-E interface, to do sth. in advance a little while separated with base the second hot plug detection pin with corresponding base the first hot plug detection pin, when circuit board the first hot plug detects pin, the second hot plug detects pin and detects pin with base the first hot plug respectively the second hot plug detects pin when separated with base with circuit board, base the second hot plug detects pin and becomes high level, the G utmost point of the PMOS pipe being connected with base the second hot plug detection pin connects high level, because the G utmost point of PMOS pipe connects high level, so the S utmost point and the not conducting of the D utmost point in PMOS pipe, now, base plate power supply cannot be powered for this circuit board, this circuit board will quit work, now corresponding, between this circuit board and this base plate, do not carry out signal mutual, based on above process, because circuit board the first hot plug detects pin and circuit board the second hot plug detects pin with respect to other pin in circuit board PCI-E interface, to do sth. in advance a little while separated with base the second hot plug detection pin with corresponding base the first hot plug detection pin, make circuit board in withdrawal process from base plate, as long as circuit board the first hot plug detects pin, the second hot plug detects pin and detects pin with base the first hot plug respectively the second hot plug detects pin when separated with base with circuit board, even if now the mutual pin of circuit board signal also contacts with the mutual pin of base signal, but base power has stopped powering for this circuit board, make to have stopped signal between this circuit board and this base plate mutual, equally, accurately controlled circuit board power down sequence in withdrawal process from base plate, guaranteed the security in circuit board hot drawing process.
In sum, the circuit board hot plug holding circuit of the utility model design is simple in structure, cheap for manufacturing cost, can realize reliable hot plug operations for circuit board, is with a wide range of applications and economic worth.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.
Claims (3)
1. a circuit board hot plug holding circuit, comprises circuit board and base plate, and wherein, circuit board comprises circuit board PCI-E interface, and base plate comprises base power and the base PCI-E interface corresponding with circuit board PCI-E interface; Circuit board PCI-E interface comprises that circuit board the first hot plug detects pin, circuit board the second hot plug detects pin, circuit board energization pins and the mutual pin of several circuit board signal; Base PCI-E interface comprise with circuit board the first hot plug detect the first hot plug of the corresponding base of pin detect pin, with circuit board the second hot plug detect the second hot plug of the corresponding base of pin detect pin, with the corresponding base for supplying power pin of circuit board energization pins and with the mutual pin of the several circuit board signals corresponding mutual pin of several base signals respectively; Between circuit board and base plate, by circuit board PCI-E interface, base PCI-E interface, connect; It is characterized in that: described base plate also comprises PMOS pipe, the D utmost point of PMOS pipe is connected with base power, and the S utmost point of PMOS pipe is connected with base for supplying power pin, and the G utmost point of PMOS pipe detects pin with base the second hot plug and is connected, meanwhile, between the G utmost point of PMOS pipe and the S utmost point, by resistance, be connected; Circuit board the first hot plug detects pin and is connected with circuit board the second hot plug detection pin, and base the first hot plug detects pin ground connection.
2. a kind of circuit board hot plug holding circuit according to claim 1; it is characterized in that: on described circuit board PCI-E interface, circuit board the first hot plug detects the length of pin and the length of circuit board the second hot plug detection pin is all less than the length of circuit board energization pins and the length of the mutual pin of several circuit board signals.
3. a kind of circuit board hot plug holding circuit according to claim 1, is characterized in that: described PMOS pipe is IRF7425.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648129.4U CN203552254U (en) | 2013-10-21 | 2013-10-21 | Hot plug protecting circuit of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648129.4U CN203552254U (en) | 2013-10-21 | 2013-10-21 | Hot plug protecting circuit of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552254U true CN203552254U (en) | 2014-04-16 |
Family
ID=50470339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320648129.4U Expired - Lifetime CN203552254U (en) | 2013-10-21 | 2013-10-21 | Hot plug protecting circuit of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552254U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076794A (en) * | 2014-10-27 | 2017-08-18 | 霍尼韦尔国际公司 | Method and apparatus for the early warning of the extraction that provides underpower module |
| CN107395182A (en) * | 2017-07-27 | 2017-11-24 | 万科思自控信息（中国）有限公司 | A kind of relaxed starter of split type equipment |
| WO2018045684A1 (en) * | 2016-09-09 | 2018-03-15 | 广州视源电子科技股份有限公司 | Interface device, and method and apparatus for secure access |
| CN108844719A (en) * | 2018-06-20 | 2018-11-20 | 上海天马微电子有限公司 | A kind of flexible circuit board, test circuit board and test macro |
-
2013
- 2013-10-21 CN CN201320648129.4U patent/CN203552254U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076794A (en) * | 2014-10-27 | 2017-08-18 | 霍尼韦尔国际公司 | Method and apparatus for the early warning of the extraction that provides underpower module |
| CN107076794B (en) * | 2014-10-27 | 2021-10-15 | 霍尼韦尔国际公司 | Method and apparatus for providing early warning of extraction of power starved modules |
| WO2018045684A1 (en) * | 2016-09-09 | 2018-03-15 | 广州视源电子科技股份有限公司 | Interface device, and method and apparatus for secure access |
| CN107395182A (en) * | 2017-07-27 | 2017-11-24 | 万科思自控信息（中国）有限公司 | A kind of relaxed starter of split type equipment |
| CN108844719A (en) * | 2018-06-20 | 2018-11-20 | 上海天马微电子有限公司 | A kind of flexible circuit board, test circuit board and test macro |
| CN108844719B (en) * | 2018-06-20 | 2021-03-09 | 上海天马微电子有限公司 | Flexible circuit board, test circuit board and test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203552254U (en) | Hot plug protecting circuit of circuit board | |
| CN104657313A (en) | Detecting system and method for universal serial bus device | |
| CN204287446U (en) | A kind of power-fail detection circuit | |
| CN101493490A (en) | Terminal port insertion detection circuit | |
| CN106020176A (en) | CC logic control chip low power consumption connection detection method and structure | |
| CN102882073A (en) | Connecting piece and connection status detection method for same | |
| CN204649887U (en) | A kind of assembling pick-up unit of elevator control cabinet wire harness | |
| CN202267962U (en) | Bus interface circuit and electronic device | |
| CN204189161U (en) | A kind of hot plug-pull control system | |
| CN201364545Y (en) | Circuit automatically recognizing ATX power supply and AT single power supply and starting normally | |
| CN111372396B (en) | Server node splicing electricity taking protection circuit, server cabinet and server node | |
| CN106160038B (en) | Charging circuit | |
| CN203466962U (en) | Audio port identification circuit and communication device | |
| CN204008948U (en) | Multifunctional cable pick-up unit | |
| CN104914969A (en) | Connector port power supply circuit | |
| CN105372546A (en) | Point location identification device of electric connectors | |
| CN104122481A (en) | Multifunction cable detection device | |
| CN102984315B (en) | A kind of method of mobile terminal and detection SIM card hot plug thereof | |
| CN201956074U (en) | In-position detecting circuit based on SAS (serial attached small computer system interface) for storage card in storage system | |
| CN201281850Y (en) | Detection device for spreading interface | |
| CN204558739U (en) | A kind of safety socket | |
| CN204065174U (en) | A kind of testing needle device | |
| CN203720295U (en) | Reliability testing apparatus for computer external interface | |
| CN203491465U (en) | USB electrical connector with detection pin | |
| CN103442317A (en) | Audio port identification circuit, audio port identification method and communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |