CN109375089A - A kind of switching method and apparatus of power supply - Google Patents
A kind of switching method and apparatus of power supply Download PDFInfo
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- CN109375089A CN109375089A CN201811027907.1A CN201811027907A CN109375089A CN 109375089 A CN109375089 A CN 109375089A CN 201811027907 A CN201811027907 A CN 201811027907A CN 109375089 A CN109375089 A CN 109375089A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
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Abstract
The embodiment of the invention provides a kind of switching method and apparatus of power supply, which comprises if detecting one chip of access, selection is adapted to the target power chip of the chip from the multiple power supply chip；The target power chip is called to be powered to the chip, to start the chip；If detecting, the target power chip stops power supply, calls the backup power source mould group to substitute the target power chip and is powered to the chip, to keep the chip to run.Power supply is managed collectively, power supply switching is carried out when discovery supplies electrically disconnected, the normal operation of chip is ensure that, improves the stability of power supply.
Description
Technical field
The present invention relates to the technical fields of communication, more particularly to a kind of switching method and apparatus of power supply.
Background technique
For audio-video hardware product exploitation for, most important work first is that the exploitation of the chip as main core.
After chip development, its performance can be tested, currently, interface can be made as to interface board plate, and then right
Chip is tested.
Under normal circumstances, it since the style of exploitation chip is more, if testing the chip of multiple styles, needs to configure a variety of
Power supply causes the quantity of power supply more, and stability is poor.
Summary of the invention
The embodiment of the present invention proposes a kind of switching method and apparatus of power supply, poor to solve interface board power supply stability
The problem of.
According to one aspect of the present invention, a kind of switching method of power supply is provided, is applied in interface board, the interface
Plate has connected multiple power supply chips and backup power source mould group, which comprises
If detecting one chip of access, selection is adapted to the target power core of the chip from the multiple power supply chip
Piece；
The target power chip is called to be powered to the chip, to start the chip；
If detecting, the target power chip stops power supply, and the backup power source mould group is called to substitute the target electricity
Source chip is powered to the chip, to keep the chip to run.
Optionally, the selection from the multiple power supply chip is adapted to the target power chip of the chip, comprising:
Identify the chip type of the chip；
Selection is adapted to the target power chip of the chip type from the multiple power supply chip.
Optionally, the chip type of the identification chip, comprising:
Detect the level signal for the pin specified in the chip；
Inquire the corresponding chip type of the level signal.
It is optionally, described that the backup power source mould group is called to be powered to the chip, comprising:
Voltage rating by the output voltage of backup power source mould group and output current regulation extremely with the target power chip
It is consistent with rated current；
Call the backup power source mould group according to the output voltage and output electric current, the replacement target power chip to
The chip is powered.
Optionally, further includes:
Alarm operation is executed for the target power chip.
Optionally, further includes:
Detect the target power chip abnormal electrical power supply；
The backup power source mould group is called to be powered jointly to the chip with the target power chip, to keep
State chip operation.
It is optionally, described to detect the target power chip abnormal electrical power supply, comprising:
Detect the output voltage and voltage threshold of the target power chip；
If the output voltage of the target power chip is lower than the voltage threshold, it is determined that the target power chip supplies
Electrical anomaly.
Optionally, described that the backup power source mould group is called to be supplied jointly to the chip with the target power chip
Electricity, comprising:
Voltage rating by the output voltage of backup power source mould group and output current regulation extremely with the target power chip
It is consistent with rated current；
Call the backup power source mould group according to the output voltage and output electric current, common with the target power chip
It is powered to the chip.
Optionally, further includes:
Starting counter is counted；
If receiving the echo signal that the chip is sent, reset counting；
It is completed if counting, reset signal is sent to the chip, to restart the chip.
According to another aspect of the present invention, a kind of switching device of power supply is provided, is applied in interface board, the interface
Plate has connected multiple power supply chips and backup power source mould group, and described device includes:
Chip selecting module, if for detecting one chip of access, the selection adaptation institute from the multiple power supply chip
State the target power chip of chip；
Chip power supply module, for calling the target power chip to be powered to the chip, to start the core
Piece；
Backup power source switching module, if being called described spare for detecting that the target power chip stops power supply
Power supply mould group substitutes the target power chip and is powered to the chip, to keep the chip to run.
Optionally, the chip selecting module includes:
Chip type identifies submodule, for identification the chip type of the chip；
Chip type selects submodule, the target for the selection adaptation chip type from the multiple power supply chip
Power supply chip.
Optionally, the chip type identification submodule includes:
Level signal detection unit, for detecting the level signal for the pin specified in the chip；
Level signal query unit, for inquiring the corresponding chip type of the level signal.
Optionally, the backup power source switching module includes:
First output adjust submodule, for by the output voltage of backup power source mould group and output current regulation extremely with it is described
The voltage rating of target power chip is consistent with rated current；
First backup power source mould group call submodule, for call the backup power source mould group according to the output voltage with
Output electric current, the replacement target power chip are powered to the chip.
Optionally, further includes:
Alarm operation executing module is operated for executing alarm for the target power chip.
Optionally, further includes:
Abnormal electrical power supply detection module, for detecting the target power chip abnormal electrical power supply；
Backup power source increases module, for calling the backup power source mould group with the target power chip jointly to described
Chip is powered, to keep the chip to run.
Optionally, the abnormal electrical power supply detection module includes:
Detection sub-module is exported, for detecting the output voltage and voltage threshold of the target power chip；
Abnormal electrical power supply determines submodule, if the output voltage for the target power chip is lower than the voltage threshold,
Then determine the target power chip abnormal electrical power supply.
Optionally, the backup power source increases module and includes:
Second output adjust submodule, for by the output voltage of backup power source mould group and output current regulation extremely with it is described
The voltage rating of target power chip is consistent with rated current；
Second backup power source mould group call submodule, for call the backup power source mould group according to the output voltage with
Output electric current is powered to the chip jointly with the target power chip.
Optionally, further includes:
Starting module is counted, is counted for starting counter；
Dump block is counted, if the echo signal sent for receiving the chip, resets counting；
Reseting module sends reset signal to the chip, to restart the chip if completing for counting.
The embodiment of the present invention includes following advantages:
In embodiments of the present invention, if detecting one chip of access, the target of chip is adapted to from multiple power supply chips
Power supply chip, invocation target power supply chip are powered to chip, and to start the chip, if detecting, target power chip stops
It only powers, then calls backup power source mould group substitution target power chip to be powered to chip, to keep chip to run, to power supply
It is managed collectively, power supply switching is carried out when discovery supplies electrically disconnected, the normal operation of chip is ensure that, improves the stabilization of power supply
Property.
Detailed description of the invention
Fig. 1 is a kind of step flow chart of the switching method of power supply of one embodiment of the invention；
Fig. 2 is the connection schematic diagram between a kind of power supply chip and backup power source mould group of one embodiment of the invention；
Fig. 3 is the step flow chart of the switching method of another power supply of one embodiment of the invention；
Fig. 4 is a kind of structural block diagram of the switching device of power supply of one embodiment of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to Fig.1, a kind of step flow chart of the switching method of power supply of one embodiment of the invention is shown, specifically may be used
To include the following steps:
Step 101, if detecting one chip of access, selection is adapted to the mesh of the chip from the multiple power supply chip
Mark power supply chip.
In the concrete realization, the embodiment of the present invention can be applied in interface board, such as FPGA (Field-Programmable
Gate Array, i.e. field programmable gate array), which is in unitized wiring board, and so-called generalization can refer to and connect
Oralia is configured with multiple power supply chips, various video interface, a variety of audio interface, network interface and memory interface, is meeting
The basic operation demand of different types of chip.
In one example, power supply chip may include the models such as TPS54821, TPS54820, including following at least one
Kind:
1.2V power supply chip, 1.33V power supply chip, 1.8V power supply chip, 2.5V power supply chip, 3.3V power supply chip, 5V
Power supply chip, 12V power supply chip.
Wherein, general audio-visual system is powered by 12V power supply chip, and 5V power supply chip is supplied to video core
The power supply such as piece, USB (Universal Serial Bus, universal serial bus), 3.3V power supply chip apply relatively broad main core
The heart, storage, network interface card, video code conversion chip etc., 2.5V power supply chip, 1.35V power supply chip is generally the memories such as DDR2, DDR3 makes
With 2.5V power supply chip, 1.2V power supply chip are generally network interface card use.
In one example, video interface is divided into digital visual interface and analog video interface, specifically include it is following extremely
Few one kind:
BT.1120 interface, high-definition multimedia interface HDMI, serial digital interface SDI, Video Graphics Array interface
VGA, mobile industry processor interface MIPI, Composite Video Baseband Signal interface CVBS, composite video interface CVS.
In one example, audio interface includes following at least one:
Digital audio interface SPDIF, microphone interface MIC, line interface LINE, integrated circuit built-in audio bus interface
I2S。
In addition, network interface accesses network interface card, for example, secure digital input and output card interface SDIO can extend WiFi (nothing
Line fidelity), 4G, modules, the MAC interface such as SD card can access PHY chip.
Memory interface accesses hard disk and memory, for example, USB2.0/3.0 interface can connect USB flash disk etc., SATA/PCIE interface etc. can
Meet solid-state hard disk SSD, hard disk drive HDD etc..
Certainly, above-mentioned interface is intended only as example, in implementing the embodiments of the present invention, it can be arranged according to the actual situation
His interface, the embodiments of the present invention are not limited thereto.In addition, those skilled in the art can be with root other than above-mentioned interface
Other interfaces are used according to actual needs, the embodiment of the present invention is also without restriction to this.
In addition, multiple power supply chip parallel connections access power supply as shown in Fig. 2, interface board has adjustable backup power source mould group
In, such as the power supply of 12V/5A, which powers to each power supply chip, which is connected with multiple power supply chips,
Also, in each power supply chip and backup power source mould group access controller, by controller control switch power supply chip and adjusting
Backup power source mould group.
Since exploitation audio and video equipment has certain general character, the general difference of the matched interface signal of chip is little, by that will lead
Signal, power supply is wanted to introduce golden finger slot, while providing enough interface redundancies, it is fixed referring to slot when carrying out chip design
Justice designs the signal of golden finger, by its access interface plate, from multiple power sources chip, various video interface and a variety of audios
Target power chip, target video interface and the target audio interface of selection adaptation chip in interface, so that the chip can be with
It operates normally, to realize the test job for completing different chips on a universalized connection plate.
In one embodiment of the invention, step 101 may include following sub-step:
Sub-step S11 identifies the chip type of the chip.
Sub-step S12, selection is adapted to the target power chip of the chip type from the multiple power supply chip.
In embodiments of the present invention, chip can be divided into multiple chip types, be directed in advance according to the characteristic of chip
Each chip type sets corresponding power supply, video interface, audio interface.
Therefore, if detecting access chip in universalized connection plate, it can detecte chip type belonging to the chip, from
And according to preset corresponding relationship, it is selected from multiple power sources chip, various video interface and a variety of audio interface respectively suitable
Target power chip (i.e. specified electricity needed for the chip of the exportable chip type of target power chip with the chip type
Pressure/rated current), target video interface and target audio interface, i.e. current chip regarded using the target power chip, target
Frequency interface and target audio interface.
In a kind of detection mode, for different chip types, setting that can be different to specified pin configuration, because
This, can detecte the level signal for the pin specified in chip, i.e. low level " 0 ", high level " 1 ", form different data groups
It closes, to search the corresponding chip type of level signal.
Step 102, the target power chip is called to be powered to the chip, to start the chip.
After having selected target power chip, the power supply is driven to power to the target power chip, conversion is suitable for chip
The electric current used, and be powered to chip, chip is normally started.
Step 103, if detecting, the target power chip stops power supply, calls backup power source mould group substitution institute
It states target power chip to be powered to the chip, to keep the chip to run.
During power supply, if target power chip breaks down, stop power supply, at this point, controller selects standby electricity
The output port connecting in the mould group of source with the target power chip calls backup power source mould group to export electric current in the output port,
Substitution target power chip is powered to chip, so that chip be kept to be in the state run.
In one embodiment of the invention, step 103 may include following sub-step:
Sub-step S21, by the output voltage of backup power source mould group and output current regulation to the target power chip
Voltage rating it is consistent with rated current.
Sub-step S22 calls the backup power source mould group according to the output voltage and output electric current, the replacement target
Power supply chip is powered to the chip.
In embodiments of the present invention, the interface that controller can call backup power source mould group to provide, by backup power source mould group
Output voltage be adjusted to it is consistent with the voltage rating of target power chip, also, by the output electric current tune of backup power source mould group
Section is extremely consistent with the rated current of target power chip.
At this point, disconnecting target power chip, starting backup power source mould group is powered for chip.
In embodiments of the present invention, if detecting one chip of access, the target of chip is adapted to from multiple power supply chips
Power supply chip, invocation target power supply chip are powered to chip, and to start the chip, if detecting, target power chip stops
It only powers, then calls backup power source mould group substitution target power chip to be powered to chip, to keep chip to run, to power supply
It is managed collectively, power supply switching is carried out when discovery supplies electrically disconnected, the normal operation of chip is ensure that, improves the stabilization of power supply
Property.
Referring to Fig. 3, a kind of step flow chart of the switching method of power supply of one embodiment of the invention is shown, specifically may be used
To include the following steps:
Step 301, if detecting one chip of access, selection is adapted to the mesh of the chip from the multiple power supply chip
Mark power supply chip.
Step 302, the target power chip is called to be powered to the chip, to start the chip.
Step 303, if detecting, the target power chip stops power supply, calls backup power source mould group substitution institute
It states target power chip to be powered to the chip, to keep the chip to run.
Step 304, alarm operation is executed for the target power chip.
In embodiments of the present invention, when target power chip breaks down, and stops power supply, target power core can be directed to
Piece executes alarm operation, prompts the target power chip to stop power supply user, facilitates user to detect, troubleshooting.
For example, starting buzzer, etc. for target power chip start indicator lamp, for target power chip.
Step 305, the target power chip abnormal electrical power supply is detected.
In the concrete realization, it such as the case where the power of fruit chip is larger, and target power chip is likely to occur electricity shortage, leads
Cause power supply appearance exception occur.
In one embodiment, the output voltage and voltage threshold of target power chip be can detecte.
Wherein, which is the voltage value of reality output, which is less than the voltage value of rated output, example
Such as, it is assumed that the voltage value of the rated output of target power chip is 5V, then voltage threshold can be set to 4.5V.
The output voltage of target power chip is compared with voltage threshold.
If the output voltage of target power chip is lower than the voltage threshold, it is determined that target power chip abnormal electrical power supply,
Otherwise, it determines the power supply of target power chip is normal.
Step 306, the backup power source mould group is called to be powered jointly to the chip with the target power chip,
To keep the chip to run.
During power supply, if abnormal electrical power supply occurs in target power chip, at this point, controller selects backup power source mould group
In the output port that is connect with the target power chip, call backup power source mould group to export electric current in the output port, with target
The chip in the same direction of power supply chip one is powered, so that chip be kept to operate normally, further increases the stability of power supply.
In one embodiment of the invention, step 306 may include following sub-step:
Sub-step S31, by the output voltage of backup power source mould group and output current regulation to the target power chip
Voltage rating it is consistent with rated current.
Sub-step S32 calls the backup power source mould group according to the output voltage and output electric current and target electricity
Source chip is powered to the chip jointly.
In embodiments of the present invention, the interface that controller can call backup power source mould group to provide, by backup power source mould group
Output voltage be adjusted to it is consistent with the voltage rating of target power chip, also, by the output electric current tune of backup power source mould group
Section is extremely consistent with the rated current of target power chip.
At this point, starting backup power source mould group in the case where keeping target power chip is that chip is powered as chip progress
Power supply.
Step 307, starting counter is counted.
Step 308, it if receiving the echo signal that the chip is sent, is reset counting.
Step 309, it is completed if counting, reset signal is sent to the chip, to restart the chip.
In embodiments of the present invention, controller is connected with the reseting pin of chip.
Controller can star counter and counted after chip starting.
Chip in normal work, regularly sends echo signal to controller, at this point, controller periodically resets clearly timing
Zero.
There is abnormal, stopping transmission echo signal to controller when voltage instability, electric arc interference in chip, this
When, whens counter counts, completes, and controller can send reset signal to the reseting pin of chip, chip is restarted, to protect
Hold the stability of chip.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 4, a kind of structural block diagram of the switching device of power supply of one embodiment of the invention is shown, applies and is connecing
In oralia, the interface board has connected a multiple power supply chips and backup power source mould group, described device can specifically include as
Lower module:
Chip selecting module 401, if selecting adaptation from the multiple power supply chip for detecting one chip of access
The target power chip of the chip；
Chip power supply module 402, for calling the target power chip to be powered to the chip, described in starting
Chip；
Backup power source switching module 403, if being called described standby for detecting that the target power chip stops power supply
It substitutes the target power chip with power supply mould group to be powered to the chip, to keep the chip to run.
In one embodiment of the invention, the chip selecting module 401 includes:
Chip type identifies submodule, for identification the chip type of the chip；
Chip type selects submodule, the target for the selection adaptation chip type from the multiple power supply chip
Power supply chip.
In one embodiment of the invention, the chip type identification submodule includes:
Level signal detection unit, for detecting the level signal for the pin specified in the chip；
Level signal query unit, for inquiring the corresponding chip type of the level signal.
In one embodiment of the invention, the backup power source switching module 403 includes:
First output adjust submodule, for by the output voltage of backup power source mould group and output current regulation extremely with it is described
The voltage rating of target power chip is consistent with rated current；
First backup power source mould group call submodule, for call the backup power source mould group according to the output voltage with
Output electric current, the replacement target power chip are powered to the chip.
In one embodiment of the invention, further includes:
Alarm operation executing module is operated for executing alarm for the target power chip.
In one embodiment of the invention, further includes:
Abnormal electrical power supply detection module, for detecting the target power chip abnormal electrical power supply；
Backup power source increases module, for calling the backup power source mould group with the target power chip jointly to described
Chip is powered, to keep the chip to run.
In one embodiment of the invention, the abnormal electrical power supply detection module includes:
Detection sub-module is exported, for detecting the output voltage and voltage threshold of the target power chip；
Abnormal electrical power supply determines submodule, if the output voltage for the target power chip is lower than the voltage threshold,
Then determine the target power chip abnormal electrical power supply.
In one embodiment of the invention, the backup power source increases module and includes:
Second output adjust submodule, for by the output voltage of backup power source mould group and output current regulation extremely with it is described
The voltage rating of target power chip is consistent with rated current；
Second backup power source mould group call submodule, for call the backup power source mould group according to the output voltage with
Output electric current is powered to the chip jointly with the target power chip.
In one embodiment of the invention, further includes:
Starting module is counted, is counted for starting counter；
Dump block is counted, if the echo signal sent for receiving the chip, resets counting；
Reseting module sends reset signal to the chip, to restart the chip if completing for counting.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
In embodiments of the present invention, if detecting one chip of access, the target of chip is adapted to from multiple power supply chips
Power supply chip, invocation target power supply chip are powered to chip, and to start the chip, if detecting, target power chip stops
It only powers, then calls backup power source mould group substitution target power chip to be powered to chip, to keep chip to run, to power supply
It is managed collectively, power supply switching is carried out when discovery supplies electrically disconnected, the normal operation of chip is ensure that, improves the stabilization of power supply
Property.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Switching method to a kind of power supply provided by the present invention and a kind of switching device of power supply above have carried out in detail
It introduces, used herein a specific example illustrates the principle and implementation of the invention, the explanation of above embodiments
It is merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to this
The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of switching method of power supply, which is characterized in that apply in interface board, the interface board has connected multiple electricity
Source chip and backup power source mould group, which comprises
If detecting one chip of access, selection is adapted to the target power chip of the chip from the multiple power supply chip；
The target power chip is called to be powered to the chip, to start the chip；
If detecting, the target power chip stops power supply, and the backup power source mould group is called to substitute the target power core
Piece is powered to the chip, to keep the chip to run.
2. the method according to claim 1, wherein described select described in adaptation from the multiple power supply chip
The target power chip of chip, comprising:
Identify the chip type of the chip；
Selection is adapted to the target power chip of the chip type from the multiple power supply chip.
3. according to the method described in claim 2, it is characterized in that, the chip type of the identification chip, comprising:
Detect the level signal for the pin specified in the chip；
Inquire the corresponding chip type of the level signal.
4. the method according to claim 1, wherein it is described call the backup power source mould group to the chip into
Row power supply, comprising:
Voltage rating and volume by the output voltage of backup power source mould group and output current regulation extremely with the target power chip
Constant current is consistent；
Call the backup power source mould group according to the output voltage and output electric current, the replacement target power chip to described
Chip is powered.
5. method according to claim 1-4, which is characterized in that further include:
Alarm operation is executed for the target power chip.
6. method according to claim 1-4, which is characterized in that further include:
Detect the target power chip abnormal electrical power supply；
The backup power source mould group is called to be powered jointly to the chip with the target power chip, to keep the core
Piece operation.
7. according to the method described in claim 6, it is characterized in that, described detect the target power chip abnormal electrical power supply,
Include:
Detect the output voltage and voltage threshold of the target power chip；
If the output voltage of the target power chip is lower than the voltage threshold, it is determined that the target power chip power supply is different
Often.
8. according to the method described in claim 6, it is characterized in that, described call the backup power source mould group and target electricity
Source chip is powered to the chip jointly, comprising:
Voltage rating and volume by the output voltage of backup power source mould group and output current regulation extremely with the target power chip
Constant current is consistent；
Call the backup power source mould group according to the output voltage and output electric current and the target power chip jointly to institute
Chip is stated to be powered.
9. method according to claim 1-4, which is characterized in that further include:
Starting counter is counted；
If receiving the echo signal that the chip is sent, reset counting；
It is completed if counting, reset signal is sent to the chip, to restart the chip.
10. a kind of switching device of power supply, which is characterized in that apply in interface board, the interface board is multiple with what is be connected
Power supply chip and backup power source mould group, described device include:
Chip selecting module, if selection is adapted to the core from the multiple power supply chip for detecting one chip of access
The target power chip of piece；
Chip power supply module, for calling the target power chip to be powered to the chip, to start the chip；
Backup power source switching module, if calling the backup power source for detecting that the target power chip stops power supply
Mould group substitutes the target power chip and is powered to the chip, to keep the chip to run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027907.1A CN109375089A (en) | 2018-09-04 | 2018-09-04 | A kind of switching method and apparatus of power supply |
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Application publication date: 20190222 |