CN112015688A - Hot plug auxiliary circuit - Google Patents
Hot plug auxiliary circuit Download PDFInfo
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- CN112015688A CN112015688A CN202010850076.9A CN202010850076A CN112015688A CN 112015688 A CN112015688 A CN 112015688A CN 202010850076 A CN202010850076 A CN 202010850076A CN 112015688 A CN112015688 A CN 112015688A
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- 230000002093 peripheral effect Effects 0.000 claims description 25
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- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 description 6
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- 230000005611 electricity Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The invention discloses a hot-plug auxiliary circuit, wherein a first distance detection device in the application can detect a first distance between the first distance detection device and an external interface of computer equipment, a first processor can judge whether the external equipment is fully connected with the external interface of the computer equipment or not through the first distance, a power supply loop of a main controller of the external equipment can be disconnected by disconnecting a first on-off control device when the external equipment is not fully connected, the power supply loop of the main controller of the external equipment can be switched on through the first on-off control device when the external equipment is fully connected, the power on of the external equipment and the computer equipment after the external equipment is fully connected can be automatically realized, the power off is controlled before the external equipment and the computer equipment are fully disconnected, the plugging and unplugging actions of the external equipment are only required by a worker, and the condition that the worker forgets to control the auxiliary circuit to cause damage to related devices can not occur, the automation degree is improved, and the potential safety hazard is eliminated.
Description
Technical Field
The invention relates to the field of hot plugging, in particular to a hot plugging auxiliary circuit.
Background
In computer equipment, the hot plug of various external devices can improve work efficiency to a great extent, in order to realize the hot plug, can set up the hot plug auxiliary circuit on external device among the prior art and make external device power on after accomplishing with computer equipment's physical connection again, accomplish the work of cutting off the electricity before breaking off physical connection with computer equipment, thereby realize external device's hot plug, but the hot plug auxiliary circuit degree of automation among the prior art is lower, need the staff when carrying out external device's hot plug, manual control hot plug auxiliary circuit, and in case the staff forgets to control hot plug auxiliary circuit, alright cause the damage of relevant device, there is the potential safety hazard.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a hot-plug auxiliary circuit, which is characterized in that a worker only needs to do the plugging and unplugging action of external equipment, so that the situation that related devices are damaged due to the fact that the worker forgets to operate and control the hot-plug auxiliary circuit can be avoided, the automation degree is improved, and potential safety hazards are eliminated.
In order to solve the above technical problem, the present invention provides a hot plug auxiliary circuit, comprising:
the power supply device is used for supplying power to the first distance detection device and the first processor;
the first distance detection device is arranged on the external equipment and is used for detecting a first distance between the first distance detection device and a peripheral interface of the computer equipment;
the first on-off control device is connected in a main controller power supply loop on the external equipment in series;
the first processor is used for controlling the first on-off control device to be switched off when the external equipment is judged to be not fully connected with the peripheral interface through the first distance, and controlling the first on-off control device to be switched on when the external equipment is judged to be fully connected with the peripheral interface through the first distance.
Preferably, the hot plug assist circuit further comprises:
the second distance detection device is arranged on the computer equipment and used for detecting a second distance between the second distance detection device and the connection interface of the external equipment;
a second on-off control device in the main controller power supply loop connected in series with the computer device;
and the second processor is used for controlling the second on-off control device to be switched off when the external equipment is judged to be not fully connected with the peripheral interface through the second distance, and controlling the second on-off control device to be switched on when the external equipment is judged to be fully connected with the peripheral interface through the second distance.
Preferably, the first processor is a main controller of the external device.
Preferably, the first distance detection device and the second distance detection device are both infrared sensors.
Preferably, the hot plug assist circuit further comprises:
the prompting device is connected with the second processor;
the first distance detection device is also used for sending the preset parameters of the external equipment received from the first processor to the second distance detection device in an infrared transmission mode;
the second processor is further configured to control the prompting device to prompt the preset parameter received from the second distance detecting device.
Preferably, the second processor comprises:
the sub-processor is used for sending a disconnection instruction to a CPU when the external equipment is judged to be not sufficiently connected with the peripheral interface through the second distance, and sending a conduction instruction to the CPU when the external equipment is judged to be sufficiently connected with the peripheral interface through the second distance;
and the CPU is used for controlling the second on-off control device to be off when receiving the off instruction and controlling the second on-off control device to be on when receiving the on instruction.
Preferably, the first processor is further configured to send power-on completion information to the CPU after the power-on program is executed, and send power-off completion information to the CPU after the power-off program is executed;
and the CPU is used for controlling the prompting device to prompt the power-on completion information and the power-off completion information.
Preferably, the sub-processor is a Complex Programmable Logic Device (CPLD).
Preferably, the first distance detection device is further configured to:
emitting an infrared signal carrying a first identifier of the computer device, and detecting a first distance between the computer device and a peripheral interface of the computer device only when a second identifier is detected;
the second distance detection device is further configured to:
and emitting an infrared signal carrying the second identifier of the user, and detecting a second distance between the user and a connection interface of the external equipment only when the first identifier is detected.
Preferably, the first on-off control device is a metal oxide semiconductor field effect transistor (MOS) tube.
The invention provides a hot-plug auxiliary circuit, wherein a first distance detection device in the application can detect a first distance between the first distance detection device and an external interface of computer equipment, a first processor can judge whether the external equipment is fully connected with the external interface of the computer equipment or not through the first distance, a power supply loop of a main controller of the external equipment can be disconnected by disconnecting a first on-off control device when the external equipment is not fully connected, the power supply loop of the main controller of the external equipment can be switched on through the first on-off control device when the external equipment is fully connected, the power on of the external equipment and the computer equipment after the external equipment is fully connected can be automatically realized, the power off is controlled before the external equipment and the computer equipment are fully disconnected, the plugging and unplugging actions of the external equipment are only required by a worker, and the condition that the worker forgets to control the auxiliary circuit to cause damage to related devices can not occur, the automation degree is improved, and the potential safety hazard is eliminated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a hot-swap auxiliary circuit according to the present invention;
FIG. 2 is a schematic diagram of another hot plug auxiliary circuit according to the present invention.
Detailed Description
The core of the invention is to provide the hot-plugging auxiliary circuit, the plugging action of external equipment is only required to be performed by a worker, the condition that the damage of related devices is caused by forgetting to operate the hot-plugging auxiliary circuit by the worker can not occur, the automation degree is improved, and the potential safety hazard is eliminated.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a hot plug assist circuit according to the present invention, the hot plug assist circuit includes:
a power supply device 1 for supplying power to the first distance detection device 2 and the first processor 4;
the first distance detection device 2 is arranged on the external equipment and is used for detecting a first distance between the first distance detection device and a peripheral interface of the computer equipment;
the first on-off control device 3 is connected in series with a power supply loop of a main controller on the external equipment;
and the first processor 4 is used for controlling the first on-off control device 3 to be switched off when the external equipment is judged to be not fully connected with the peripheral interface through the first distance, and controlling the first on-off control device 3 to be switched on when the external equipment is judged to be fully connected with the peripheral interface through the first distance.
In particular, in view of the technical problems in the background art, in the embodiment of the present invention, a hot plug auxiliary circuit is designed to implement power on after an external device is fully connected to a computer device, and to implement power off control before the external device is completely disconnected from the computer device, and a first distance detection device 2 may detect a first distance between itself and a peripheral interface of the computer device, so that a processor can implement control over a main controller power supply loop of the external device according to the first distance, and finally implement automatic hot plug.
Specifically, the first distance detecting device 2 may be disposed at any position on a circuit board of the external device, for example, may be disposed near a connection interface with the external device, so as to measure a distance from the connection interface to an external interface at a computer device end, and the like.
Specifically, the main controller power supply loop can be regarded as two parts, one part is arranged on the external device, the other part is arranged on the computer device, the two parts can form a complete loop after being communicated, the first on-off control device 3 can be arranged in the part of the main controller power supply loop on the external device, even if the external device is not fully connected with the computer device, the part of the main controller power supply loop on the external device and the part of the main controller power supply loop on the computer device are connected in a virtual mode, power supply on the computer device can not supply power to the main controller of the external device, only after the two parts are fully connected, the first on-off control device 3 can be connected with the main controller power supply loop under the control of the first processor 4 to achieve power-on of the main controller, and abnormal conditions caused by virtual power-on are prevented.
Wherein, whether the external equipment is fully connected with the external interface can be judged through the first distance, and corresponding judgment conditions are set, for example, it may be determined that the external device is not sufficiently connected to the external interface when the first distance is greater than a preset threshold, and can determine that the external device is fully connected with the external interface when the continuous preset duration of the first distance is equal to the preset threshold value, and the like, during the hot addition, when the first distance is greater than a preset threshold, the first on-off control device 3 is switched off, when the first distance continuous preset time length is equal to the preset threshold value (namely, the preset time length is fully connected), the first on-off control device 3 is conducted, in the process of heat removal, when the first distance is greater than the preset threshold, the first on-off control device 3 is turned off, and at the moment, the main controller can execute power-off operation so as to complete the power-off operation before the external device is completely disconnected with the computer device.
Specifically, the power supply device 1 may be of various types, for example, a storage battery, and the embodiment of the present invention is not limited herein.
The power supply device 1 may supply power to the first processor 4 and the first distance detection device 2 only when the first on-off control device 3 is turned off, and the first processor 4, the power supply device 1 and the first distance detection device 2 may be supplied power by a power supply in the computer device when the first on-off control device 3 is turned on.
The invention provides a hot-plug auxiliary circuit, wherein a first distance detection device in the application can detect a first distance between the first distance detection device and an external interface of computer equipment, a first processor can judge whether the external equipment is fully connected with the external interface of the computer equipment or not through the first distance, a power supply loop of a main controller of the external equipment can be disconnected by disconnecting a first on-off control device when the external equipment is not fully connected, the power supply loop of the main controller of the external equipment can be switched on through the first on-off control device when the external equipment is fully connected, the power on of the external equipment and the computer equipment after the external equipment is fully connected can be automatically realized, the power off is controlled before the external equipment and the computer equipment are fully disconnected, the plugging and unplugging actions of the external equipment are only required by a worker, and the condition that the worker forgets to control the auxiliary circuit to cause damage to related devices can not occur, the automation degree is improved, and the potential safety hazard is eliminated.
For better explaining the embodiment of the present invention, please refer to fig. 2, fig. 2 is a schematic structural diagram of another hot plug auxiliary circuit provided by the present invention, and on the basis of the above embodiment:
as a preferred embodiment, the hot swap auxiliary circuit further comprises:
the second distance detection device is arranged on the computer equipment and used for detecting a second distance between the second distance detection device and a connection interface of the external equipment;
a second on-off control device connected in series in a main controller power supply loop on the computer equipment;
and the second processor is used for controlling the second on-off control device to be switched off when the external equipment is judged to be not fully connected with the peripheral interface through the second distance, and controlling the second on-off control device to be switched on when the external equipment is judged to be fully connected with the peripheral interface through the second distance.
Specifically, considering that the reliability of the single hot plug auxiliary circuit arranged on the external device board card is poor, if a problem occurs in the first on-off control device 3 or the first processor 4, the failure of hot plug may cause damage to related devices, therefore, a set of control circuit identical to that in the foregoing embodiment is also arranged on the computer device in the embodiment of the present invention, and the control circuit can perform on-off control on the second on-off control device in the main controller power supply loop connected in series to the computer device based on the detected second distance, so that the on-off control of the main controller power supply loop is more reliable, that is, the success rate of hot plug is increased, and the potential safety hazard is eliminated.
In the embodiment of the present invention, power supplied to each device provided in the computer apparatus may be provided by a power supply in the computer apparatus.
In a preferred embodiment, the first processor 4 is a main controller of the external device.
Specifically, the first processor 4 selects the main controller of the external device, so that no additional new processor is needed, and the main controller of the external device has high reliability, and may be an MCU (micro controller unit) or the like generally.
Of course, the first processor 4 may be another type of processor that is additionally added besides the main controller of the external device, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the first distance detection means 2 and the second distance detection means are both infrared sensors.
Specifically, the infrared sensor has the advantages of small volume, low cost, long service life and the like.
Of course, the first distance detecting device 2 and the second distance detecting device may be of other types besides the infrared sensor, such as an ultrasonic sensor, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the hot swap auxiliary circuit further comprises:
the prompting device is connected with the second processor;
the first distance detection device 2 is further configured to send the preset parameter of the external device received from the first processor 4 to the second distance detection device in an infrared transmission manner;
the second processor is further configured to control the prompting device to prompt the preset parameter received from the second distance detecting device.
Specifically, since wireless data transmission can be performed between the infrared sensors, in the embodiment of the present invention, the preset parameter of the external device at the first processor 4 can be sent to the prompting device connected to the second processor for prompting by using the characteristic of the infrared sensor, so that the user at the computer device side can be connected to some information of the connected external device in time.
The preset parameters may be of various types, and for example, the preset parameters may include some basic information of the external device, such as a model, a basic parameter, power consumption, and the like, which is not limited herein.
The prompting device may be of various types, for example, a display of a computer device, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the second processor includes:
the sub-processor is used for sending a disconnection instruction to the CPU when the external equipment is judged to be not fully connected with the peripheral interface through the second distance, and sending a conduction instruction to the CPU when the external equipment is judged to be fully connected with the peripheral interface through the second distance;
and the CPU is used for controlling the second on-off control device to be off when receiving the off instruction and controlling the second on-off control device to be on when receiving the on instruction.
Specifically, in the embodiment of the present invention, the CPU of the computer device may complete the control of the second power-on control device, so that the CPU may know and record information such as the time when the external device starts to supply power and stops supplying power, and the like, through the brain of the computer device.
Of course, besides the architecture in the embodiment of the present invention, the second processor may also be another architecture, for example, only includes a sub-processor and does not include a CPU, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the first processor 4 is further configured to send a power-on completion message to the CPU after the power-on program is executed, and send a power-off completion message to the CPU after the power-off program is executed;
and the CPU is used for controlling the prompting device to prompt the power-on completion information and the power-off completion information.
Specifically, in order to facilitate the power-on and power-off processes of the CPU or the external device and perform unified management of information, the first processor 4 in the embodiment of the present invention is further configured to send power-on completion information to the CPU after executing the power-on program, and send power-off completion information to the CPU after executing the power-off program, where the sending of the two types of information may be implemented based on a connector connected between the external device and the computer device, and certainly may also be implemented by two infrared sensors, which is not limited herein.
Specifically, in fig. 2, the external device and the computer device may be connected to each other by a signal and electrically connected to each other through a male connector and a female connector of the high-speed connector, the left side of fig. 2 may be regarded as a hot plug board of the external device, the power IC3 may function as a Voltage drop and a Voltage stabilization, and may be implemented by an LDO (Low Dropout Regulator), the OVP (overvoltage Protection) IC may be an overvoltage Protection chip, which may implement overvoltage Protection on the power supplied to the first processor 4 and the first distance detection device 2, the power IC2 may implement Voltage drop for the power supplied to the CPLD, and the power IC1 may function as a rectification, which may be implemented by a hot plug chip.
The first distance detection device 2 is flexible in position, and may be placed in a guide slot of a high-speed connector, or placed in other positions such as a PCIE card.
Specifically, the infrared sensor transmits and measures by using physical characteristics of infrared rays, and the infrared sensor does not directly contact with a measured object when working, so that space is saved and efficiency is improved. The optical system receives or emits optical signals and can be divided into a transmission type and a reflection type according to different structures; the optical detection element can be divided into a thermosensitive detection element and a photoelectric detection element according to the working principle; the conversion circuit converts the optical signal into an electrical signal for transmission.
The first processor 4 can be realized by using STM32 and performs IIC communication with the mainboard end CPLD, the first processor 4 can output a control signal SW _ EN to control the first on-off control device 3 and output a PW _ GOOD signal to the mainboard end CPU, the PW _ GOOD signal indicates whether the circuit board of the external equipment is electrified or not, the sub-processor can realize debouncing and logic processing and send the control signal C _ EN to the CPU, IIC communication information of the main board end sub-processor and the first processor 4 of the hot plug board is transmitted to the CPU through an M _ C _ Info signal, and the M _ C _ Info indicates that GPIO bus signals or SMBUS bus signals are used for communication; the CPU processes the C _ EN signal and controls the power IC1 and the enable terminal PW _ EN of the power IC2, where the power IC2 may be regarded as the second disconnection control means described above.
Specifically, during hot addition, when a hot plug board of the external device is close to the main board, the infrared Sensor1 and the infrared Sensor2 measure the Width value Width between the two sensors, communicate simultaneously, transmit signals to the first processor 4 and the subprocessors respectively for processing, control the power supply circuit of the main controller to be disconnected, and simultaneously send control signals to the CPU by the subprocessors, so that the power supply IC1 is not enabled; when the heat addition is finished, the infrared Sensor1 and the infrared Sensor2 can continuously measure the Width value Width between the two sensors, simultaneously communicate, transmit signals to the first processor 4 and the subprocessors respectively for processing, control the first on-off control device 3 to be conducted, and then the subprocessors at the end of the main board send control signals to the CPU, so that the power supply IC1 is enabled to supply power, and the heat addition is realized.
Similarly, when heat is removed, because the hot plug board and the main board start to be separated, the male head and the female head of the high-speed connector are in conduction at the moment, the infrared Sensor1 and the infrared Sensor2 can measure the Width value between the two sensors, simultaneously communicate, transmit signals to the first processor 4 and the subprocessors respectively for processing, control the disconnection of the first on-off control device 3 of the hot plug board, simultaneously send control signals to the CPU by the main board terminal subprocessors, the power supply IC1 is not enabled, and then the hot plug board and the main board are separated, so that heat removal is realized.
As a preferred embodiment, the sub-processors are CPLDs.
Specifically, a CPLD (Complex Programming logic device) has the advantages of small size, low cost, long service life, and the like.
Of course, besides CPLDs, the sub-processors may be of other types, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the first distance detection means 2 is further adapted to:
emitting an infrared signal carrying a first identifier of the computer device, and detecting a first distance between the computer device and a peripheral interface of the computer device only when a second identifier is detected;
the second distance detection means is further for:
and emitting an infrared signal carrying a second identifier of the user, and detecting a second distance between the user and a connection interface of the external equipment only when the first identifier is detected.
Specifically, in the embodiment of the invention, when the distance between the two infrared sensors is far, the two infrared sensors both work in a low power consumption mode without detecting the distance, and only emit the infrared signals carrying the identifiers of the two infrared sensors outwards, when the external device is subjected to heat addition and is close to the computer device, the two infrared sensors can also recognize each other through the first identifier and the second identifier and enter an activation state capable of detecting the distance due to the close distance between the two infrared sensors, and by the method, the electric energy can be saved, and the electricity consumption cost is reduced.
Of course, the two infrared sensors may also operate in an active state in which distance detection is possible, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the first on-off control means 3 is a MOS transistor.
In particular, a MOS (Metal Oxide Semiconductor field effect transistor) transistor has the advantages of fast response, small size, low cost, and the like.
Of course, the first on-off control device 3 may be of another type than a MOS transistor, and the embodiment is not limited thereto.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hot swap assist circuit, comprising:
the power supply device is used for supplying power to the first distance detection device and the first processor;
the first distance detection device is arranged on the external equipment and is used for detecting a first distance between the first distance detection device and a peripheral interface of the computer equipment;
the first on-off control device is connected in a main controller power supply loop on the external equipment in series;
the first processor is used for controlling the first on-off control device to be switched off when the external equipment is judged to be not fully connected with the peripheral interface through the first distance, and controlling the first on-off control device to be switched on when the external equipment is judged to be fully connected with the peripheral interface through the first distance.
2. A hot plug assist circuit as claimed in claim 1, further comprising:
the second distance detection device is arranged on the computer equipment and used for detecting a second distance between the second distance detection device and the connection interface of the external equipment;
a second on-off control device in the main controller power supply loop connected in series with the computer device;
and the second processor is used for controlling the second on-off control device to be switched off when the external equipment is judged to be not fully connected with the peripheral interface through the second distance, and controlling the second on-off control device to be switched on when the external equipment is judged to be fully connected with the peripheral interface through the second distance.
3. The hot plug assist circuit of claim 2, wherein the first processor is a host controller of the external device.
4. A hot plug assist circuit as claimed in claim 3, wherein the first distance detection means and the second distance detection means are both infrared sensors.
5. A hot plug assist circuit as claimed in claim 4, further comprising:
the prompting device is connected with the second processor;
the first distance detection device is also used for sending the preset parameters of the external equipment received from the first processor to the second distance detection device in an infrared transmission mode;
the second processor is further configured to control the prompting device to prompt the preset parameter received from the second distance detecting device.
6. The hot plug assist circuit of claim 5, wherein the second processor comprises:
the sub-processor is used for sending a disconnection instruction to a CPU when the external equipment is judged to be not sufficiently connected with the peripheral interface through the second distance, and sending a conduction instruction to the CPU when the external equipment is judged to be sufficiently connected with the peripheral interface through the second distance;
and the CPU is used for controlling the second on-off control device to be off when receiving the off instruction and controlling the second on-off control device to be on when receiving the on instruction.
7. The hot-swap auxiliary circuit of claim 6, wherein the first processor is further configured to send a power-on complete message to the CPU after executing the power-on procedure, and to send a power-off complete message to the CPU after executing the power-off procedure;
and the CPU is used for controlling the prompting device to prompt the power-on completion information and the power-off completion information.
8. The circuit of claim 6, wherein the sub-processor is a Complex Programmable Logic Device (CPLD).
9. The hot plug assist circuit of claim 4, wherein the first distance detection device is further configured to:
emitting an infrared signal carrying a first identifier of the computer device, and detecting a first distance between the computer device and a peripheral interface of the computer device only when a second identifier is detected;
the second distance detection device is further configured to:
and emitting an infrared signal carrying the second identifier of the user, and detecting a second distance between the user and a connection interface of the external equipment only when the first identifier is detected.
10. A hot-swap auxiliary circuit according to any of claims 1-9, wherein the first on-off control device is a mosfet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850076.9A CN112015688A (en) | 2020-08-21 | 2020-08-21 | Hot plug auxiliary circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010850076.9A CN112015688A (en) | 2020-08-21 | 2020-08-21 | Hot plug auxiliary circuit |
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| CN112015688A true CN112015688A (en) | 2020-12-01 |
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| CN202010850076.9A Withdrawn CN112015688A (en) | 2020-08-21 | 2020-08-21 | Hot plug auxiliary circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486305A (en) * | 2021-02-04 | 2021-03-12 | 鹏城实验室 | External equipment time sequence control method, computer, mainboard and host thereof |
| TWI812970B (en) * | 2021-06-25 | 2023-08-21 | 瑞昱半導體股份有限公司 | Power supplying circuit and power supplying method |
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2020
- 2020-08-21 CN CN202010850076.9A patent/CN112015688A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486305A (en) * | 2021-02-04 | 2021-03-12 | 鹏城实验室 | External equipment time sequence control method, computer, mainboard and host thereof |
| CN112486305B (en) * | 2021-02-04 | 2021-05-11 | 鹏城实验室 | External equipment time sequence control method, computer, mainboard and host thereof |
| TWI812970B (en) * | 2021-06-25 | 2023-08-21 | 瑞昱半導體股份有限公司 | Power supplying circuit and power supplying method |
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Application publication date: 20201201 |