CN112463688B - Hot plug-in protection device and system of server - Google Patents
Hot plug-in protection device and system of server Download PDFInfo
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- CN112463688B CN112463688B CN202011356961.8A CN202011356961A CN112463688B CN 112463688 B CN112463688 B CN 112463688B CN 202011356961 A CN202011356961 A CN 202011356961A CN 112463688 B CN112463688 B CN 112463688B
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- 230000005669 field effect Effects 0.000 claims abstract description 33
- 230000009466 transformation Effects 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 5
- 230000001276 controlling effect Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000002829 reductive effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 230000000670 limiting effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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Abstract
The invention provides a hot plug-in protection device and a hot plug-in protection system for a server, belongs to the technical field of semiconductors, and can solve the problem that a field effect transistor is damaged when a large current is suddenly input to an external input end. Which comprises the following steps: the device comprises a current adjusting unit, a control unit and a conversion unit; the current adjusting unit is connected with an external input end and used for inhibiting the current of the input end, and the current adjusting unit is also connected with the input end of a hot-plug protection module of the server through the transformation unit so as to input the inhibited current into the hot-plug protection module; the transformation unit is also connected with the external input end; the control unit is connected with the transformation unit and is used for controlling the transformation unit.
Description
Technical Field
The invention relates to the technical field of semiconductors, in particular to a hot plug protection device and system for a server.
Background
Currently, with the convenience of hot-plug functions in servers, more and more servers are provided with hot-plug functions. In order to protect the electronic components during the hot-plug process, a hot-plug protection device is generally provided, for example, a field effect transistor is selected as a conduction path of the hot-plug protection, the speed of a gate switch of the field effect transistor is controlled by a chip built in the protection device to perform the hot-plug protection, or the durability of a safe working area of the field effect transistor is directly utilized to perform the protection.
At present, in order to protect an electronic element during a hot-plug process, a hot-plug protection module is often disposed between an input terminal and a field effect transistor in the prior art, wherein a current detection device is generally disposed in the hot-plug protection module, and a gate of the field effect transistor is controlled to be turned on and off based on a change of an input current, so as to improve a normal operation of the transistor, thereby protecting the electronic element during the hot-plug process. However, in practical applications, in the existing hot-plug protection module, if an instantaneous large current passes through the input terminal during use, the hot-plug control module will cause the turn-off speed and duration of the gate of the fet due to the error of the internal parameters and the error of the external circuit, thereby affecting the capability of the fet to instantaneously bear the large current. That is, when a large current is suddenly input from an external input terminal, the conventional thermal insertion protection module may cause the fet to be damaged due to the large current input.
Disclosure of Invention
The invention aims to provide a hot plug protection device of a server, which can solve the problem that a field effect transistor is damaged when a large current is suddenly input from an external input end.
In a first aspect, the present invention provides a hot-plug protection device apparatus for a server, comprising:
the device comprises a current adjusting unit, a control unit and a conversion unit;
the current adjusting unit is connected with an external input end and used for inhibiting the current of the input end, and is also connected with the input end of a hot-plug protection module of the server through the transformation unit so as to input the inhibited current into the hot-plug protection module; the transformation unit is also connected with the external input end;
the control unit is connected with the transformation unit and used for controlling the transformation unit.
Optionally, the transformation unit includes: a first path and a second path;
the input end of the first channel is connected with the input end of the outside, the output end of the first channel is connected with the input end of the hot-plug protection module, and the first channel is used for enabling the input current of the outside to be input into the hot-plug protection module;
the input end of the second path is connected with the output end of the current regulating unit, the output end of the second path is connected with the input end of the hot plug protection module, and the second path is used for enabling the current after being restrained by the current regulating unit to be input into the hot plug protection module.
Optionally, the control unit is specifically configured to control the second path to be turned on and control the first path to be turned off when the external input current exceeds a preset threshold; the control unit is further specifically configured to control the first path to be turned on and control the second path to be turned off when the external input current does not exceed the preset threshold.
Optionally, the control unit is further connected to a gate switch in the hot-plug protection module;
the control unit is used for controlling the gate switch to be switched off when the external input current exceeds a preset threshold value.
Optionally, when a current level monitor is disposed in the hot-plug protection module;
the control unit is connected with the current level monitor and used for receiving external input current information monitored by the current level monitor.
Optionally, when a current controller is disposed in the hot plug protection module;
the control unit is specifically the current controller.
Optionally, the current regulating unit is specifically a transformer;
the input end of the transformer is connected with the input end of the outside, and the output end of the transformer is connected with the conversion unit.
Optionally, the input end of the transformer is connected in parallel with an external input capacitor to implement power compensation.
On the other hand, the invention also provides a hot plug protection system of a server, which is characterized by comprising the following components:
the thermal insertion protection device of any one of the preceding aspects; and
a hot-plug protection module;
the input end of the hot-plug protection device is connected with the input end of the outside, and the output end of the hot-plug protection device is connected with the input end of the hot-plug protection module;
the first output end of the hot-plug protection module is connected with the drain of the field effect transistor, and the second output end of the hot-plug protection module is connected with the gate of the field effect transistor.
The invention provides a hot plug protection device and a system of a server, wherein the hot plug protection device of the server comprises a current regulation unit, a control unit and a conversion unit; the current adjusting unit is connected with an external input end and used for inhibiting the current of the input end, and the current adjusting unit is also connected with the input end of a hot-plug protection module of the server through the transformation unit so as to input the inhibited current into the hot-plug protection module; the transformation unit is also connected with the external input end; the control unit is connected with the transformation unit and used for controlling the transformation unit. Therefore, the input current can be restrained through the current adjusting unit, so that the restrained current is smaller than the original input current, the input current of the subsequent field effect transistor is reduced, and the influence of overlarge current on the field effect transistor is avoided. Simultaneously, can realize two different input channels of hot plug protection module through the transform unit for when external input current is less, can directly reach field effect transistor through the hot plug module, avoided the device of this embodiment to the problem of the current undersize that input current's suppression brought.
Accordingly, the apparatus, system and computer-readable storage medium provided by the embodiments of the present invention also have the above technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a hot plug protection device for a server according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another server hot-plug protection device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hot plug protection device for a server according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a hot plug protection system of a server according to an embodiment of the present invention;
fig. 5 is a specific schematic diagram of a structure of a hot plug protection system of a server according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprising" and "having," and any variations thereof, as referred to in embodiments of the present invention, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
An embodiment of the present invention provides a hot plug protection device for a server, and specifically, as shown in fig. 1, the hot plug protection device includes: a current adjusting unit 11, a control unit 12, and a converting unit 13;
the current adjusting unit 11 is connected to an external input end, and may be configured to suppress current at the input end, and the current adjusting unit 11 is further connected to an input end of a hot plug protection module of the server through the converting unit 13, so as to input the suppressed current into the hot plug protection module; the transformation unit 13 is also connected with the external input end;
the control unit 12 is connected to the transformation unit 13 and can be used to control the transformation unit.
The current after being restrained is smaller than the original input current by restraining the input current by the current regulating unit, so that the input current of the subsequent field effect transistor is reduced, and the influence of overlarge input current on the field effect transistor in the prior art is solved.
In addition, two different input channels of the hot plug protection module can be realized through the conversion unit, so that when external input current is small, the hot plug module can directly reach the field effect transistor, and the problem that the current is too small due to inhibition of the device of the embodiment on the input current is avoided. Thereby realizing a function capable of selecting an input line based on a current situation.
In some embodiments, as shown in fig. 2, the transformation unit 13 includes: a first path 131 and a second path 132;
an input end of the first path 131 is connected to an external input end, an output end of the first path 131 is connected to an input end of the hot-plug protection module, and the first path 131 may be configured to enable an external input current to be input to the hot-plug protection module;
the input end of the second path 132 is connected to the output end of the current adjusting unit 11, the output end of the second path 132 is connected to the input end of the thermal insertion protection module, and the second path 132 may be configured to enable the current restrained by the current adjusting unit to be input to the thermal insertion protection module.
Therefore, only one of the first path and the second path is conducted during control, so that the device can adjust the current path input by the subsequent hot plug control module based on the control of the control unit, thereby realizing the line selection effect under different current input conditions, and ensuring that the subsequent field effect transistor avoids the possible damage problem caused by receiving larger current.
In some embodiments, as shown in fig. 2, the control unit 12 may be specifically configured to control the second path 132 to be turned on and control the first path 131 to be turned off when the external input current exceeds a preset threshold; the control unit 12 may be further specifically configured to control the first path 131 to be turned on and control the second path 132 to be turned off when the external input current does not exceed the preset threshold.
Whether the input current exceeds a preset threshold value or not is determined to select the first path and the second path in the change unit, so that the function of selecting a conduction path based on the actual current condition can be realized, and subsequent field effect transistors cannot be influenced no matter the external input current is large or small.
In some embodiments, as shown in fig. 2, the control unit 12 is further connected to a gate switch in the hot-plug protection module;
the control unit 12 may be configured to control the gate switch to be turned off when the external input current exceeds a preset threshold.
Thus, by controlling the turn-off of the gate switch, the input to the gate of the field effect transistor can be stopped when a large current exists, and the safety of the field effect transistor can be further ensured.
In some embodiments, as shown in fig. 2, when a current level monitor is disposed in the hot-plug protection module;
the control unit 12 is connected to the current level monitor and can be used for receiving external input current information monitored by the current level monitor.
Therefore, when the device is connected with the hot-plug protection module, the current can be monitored by using the existing devices, the number of elements required by the device is reduced, and the cost and the space are saved.
In some embodiments, as shown in fig. 3, when a current controller is provided in the thermal insertion protection module;
the control unit 12 is specifically the current controller.
When the hot-plug protection module is provided with the current controller, the device can be directly used as the control unit in the embodiment, so that a control device for controlling the gate switch and the conversion unit is not required to be arranged, and the cost and the layout space in the equipment can be saved.
In some embodiments, as shown in fig. 3, the current regulating unit 11 is embodied as a transformer;
the input end of the transformer is connected with the input end of the outside, and the output end of the transformer is connected with the transformation unit 13.
By arranging the transformer as the current regulating unit, the transformer is convenient to manufacture and low in cost, so that the cost of the device can be saved, and the manufacturing difficulty can be reduced.
In some embodiments, as shown in fig. 3, the input terminal of the transformer is connected in parallel with the external input capacitor to realize power compensation.
The input end of the transformer is connected in parallel with the input capacitor of the external input end, so that the effect of power compensation can be achieved, the problem that the power factor is low due to the fact that the transformer belongs to an inductive load is solved, and the power factor can be corrected by connecting one capacitor in parallel to achieve the function of power compensation.
The embodiment further provides a hot-plug protection system for a server, as shown in fig. 4, where the system includes:
the thermal insertion protection device 41 as described in any of the previous embodiments;
a hot-plug protection module 42;
the input end of the hot-plug protection device 41 is connected with the input end of the outside, and the output end of the hot-plug protection device 41 is connected with the input end of the hot-plug protection module 42;
a first output terminal of the hot-plug protection module 42 is connected to a drain of the field effect transistor, and a second output terminal of the hot-plug protection module is connected to a gate of the field effect transistor.
Further, as a specific example of the above system, the hot plug protection system of the server may be as shown in fig. 5, wherein Rsense is a current detection resistor, transformer is a Transformer, D is a drain of a field effect transistor, S is a source of the field effect transistor, and G is a gate of the field effect transistor; IMON is a current level monitor; sense + is a positive terminal current signal; sense-is the negative terminal current signal; a Gate switch of the Gate driver; vin is an external input end; vout is the external output end; cin is an external input capacitor; cout is the external output capacitance; the Current Limit Control is a Current controller. Thus, after the external input Current reaches the Rsense Current detection resistor through the path 1 of the change-over switch, the IMON Current level monitor obtains Current information through the Sense + positive end Current signal and the Sense-negative end Current signal and provides the Current information to the Current Limit Control Current controller, when the Current monitor judges that the Current is too large (exceeds a preset threshold), the change-over switch is controlled to disconnect the path 1 to enable the path 2 to be conducted, so that the external input Current is reduced through the inhibition of the Transformer, the restrained Current reaches the drain electrode of the D field effect transistor through the Rsense Current detection resistor, the drain electrode Current passing through the field effect transistor is greatly reduced, and the influence on the field effect transistor is avoided. Meanwhile, the Current Limit Control Current controller also controls when judging that the Current is overlarge; the Gate switch of the Gate is turned off, so that the field effect transistor can stop influencing the Gate when the external input current is larger.
The embodiment of the invention provides a hot plug protection device and a system of a server, wherein the hot plug protection device of the server comprises a current regulation unit, a control unit and a conversion unit; the current adjusting unit is connected with an external input end and used for inhibiting the current of the input end, and the current adjusting unit is also connected with the input end of a hot-plug protection module of the server through the transformation unit so as to input the inhibited current into the hot-plug protection module; the transformation unit is also connected with the external input end; the control unit is connected with the transformation unit and is used for controlling the transformation unit. Therefore, the input current can be restrained through the current adjusting unit, so that the restrained current is smaller than the original input current, the input current of the subsequent field effect transistor is reduced, and the influence of overlarge current on the field effect transistor is avoided. Simultaneously, can realize two different input channels of hot plug protection module through the transform unit for when external input current is less, can directly reach field effect transistor through the hot plug module, avoided the device of this embodiment to the problem of the current undersize that input current's suppression brought.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still make modifications or changes to the embodiments described in the foregoing embodiments, or make equivalent substitutions for some features, within the scope of the disclosure; and the modifications, changes or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A hot-plug protection device for a server, comprising:
current regulation unit, control unit and transform unit, wherein, transform unit includes: the circuit comprises a first path and a second path, wherein the input end of the first path is connected with the input end of the outside, the output end of the first path is connected with the input end of the hot-plug protection module, and the first path is used for inputting the external input current into the hot-plug protection module; the input end of the second path is connected with the output end of the current regulating unit, the output end of the second path is connected with the input end of the hot plug protection module, and the second path is used for enabling the current restrained by the current regulating unit to be input into the hot plug protection module;
the current adjusting unit is connected with an external input end and used for inhibiting the current of the input end, and is also connected with the input end of a hot-plug protection module of the server through the transformation unit so as to input the inhibited current into the hot-plug protection module; the transformation unit is also connected with the external input end;
the control unit is connected with the transformation unit and is used for controlling the transformation unit.
2. The server hot-plug protection device according to claim 1, wherein the control unit is specifically configured to control the second path to be turned on and control the first path to be turned off when the external input current exceeds a preset threshold; the control unit is further specifically configured to control the first path to be turned on and control the second path to be turned off when the external input current does not exceed the preset threshold.
3. The server hot-plug protection device according to any one of claims 1-2, wherein the control unit is further connected to a gate switch in the hot-plug protection module;
the control unit is used for controlling the gate switch to be switched off when the external input current exceeds a preset threshold value.
4. The device according to claim 3, wherein when the hot-plug protection module is provided with a current level monitor;
the control unit is connected with the current level monitor and used for receiving external input current information monitored by the current level monitor.
5. The server hot-plug protection device according to claim 4, wherein when a current controller is provided in the hot-plug protection module;
the control unit is specifically the current controller.
6. Hot-plug protection device for servers according to claim 5, characterized in that said current regulation unit is in particular a transformer;
the input end of the transformer is connected with the input end of the outside, and the output end of the transformer is connected with the conversion unit.
7. The server hot-plug protection device according to claim 6, wherein the input end of the transformer is connected in parallel with an external input capacitor to realize power compensation.
8. A system for hot plug protection of a server, comprising:
the thermal insertion protection device of any one of the preceding claims 1-7;
a hot-plug protection module;
the input end of the hot-plug protection device is connected with the input end of the outside, and the output end of the hot-plug protection device is connected with the input end of the hot-plug protection module;
the first output end of the hot-plug protection module is connected with the drain of the field effect transistor, and the second output end of the hot-plug protection module is connected with the gate of the field effect transistor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011356961.8A CN112463688B (en) | 2020-11-27 | 2020-11-27 | Hot plug-in protection device and system of server |
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| CN202011356961.8A CN112463688B (en) | 2020-11-27 | 2020-11-27 | Hot plug-in protection device and system of server |
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| CN112463688A CN112463688A (en) | 2021-03-09 |
| CN112463688B true CN112463688B (en) | 2022-11-25 |
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| CN113741673B (en) * | 2021-08-27 | 2023-08-18 | 苏州浪潮智能科技有限公司 | Protection device applied to hot plug server |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774772A (en) * | 2017-01-16 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of hot plug module electric supply installation, method and system |
| CN207801568U (en) * | 2017-12-30 | 2018-08-31 | 天津市上上生科技发展有限公司 | Power-supply system with warm connection function |
| CN109327020A (en) * | 2018-10-08 | 2019-02-12 | 郑州云海信息技术有限公司 | A kind of hot-plug protecting equipment and power supplying system of server of server power supply |
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2020
- 2020-11-27 CN CN202011356961.8A patent/CN112463688B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774772A (en) * | 2017-01-16 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of hot plug module electric supply installation, method and system |
| CN207801568U (en) * | 2017-12-30 | 2018-08-31 | 天津市上上生科技发展有限公司 | Power-supply system with warm connection function |
| CN109327020A (en) * | 2018-10-08 | 2019-02-12 | 郑州云海信息技术有限公司 | A kind of hot-plug protecting equipment and power supplying system of server of server power supply |
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