CN109687712A - DC-DC device, control method for micro- mixed controller - Google Patents
DC-DC device, control method for micro- mixed controller Download PDFInfo
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- CN109687712A CN109687712A CN201910056533.4A CN201910056533A CN109687712A CN 109687712 A CN109687712 A CN 109687712A CN 201910056533 A CN201910056533 A CN 201910056533A CN 109687712 A CN109687712 A CN 109687712A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
Abstract
The invention discloses a kind of for the DC-DC device of micro- mixed controller, the electronic equipment of control method, computer storage medium and the DC-DC device for micro- mixed controller, which includes buck converter, first switch tube and driving unit.Buck converter includes the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, and the first end and second end of the first metal-oxide-semiconductor is connect with the first end and second end of buck converter respectively；The first end of second metal-oxide-semiconductor and the second end of buck converter connect, second end ground connection；First switch tube is serially connected between the first end of buck converter and the output end of 48V power supply；The drive output of driving unit is connect with the controlled terminal of the controlled terminal of the first metal-oxide-semiconductor, the controlled terminal of the second metal-oxide-semiconductor and first switch tube.Technical solution of the present invention can be avoided makes the device be damaged due to the first metal-oxide-semiconductor and the second metal-oxide-semiconductor can not be disconnected reliably.
Description
Technical field
The present invention relates to automotive fields, in particular to are used for DC-DC device, control method, the computer of micro- mixed controller
The electronic equipment of storage medium and the DC-DC device for micro- mixed controller.
Background technique
Currently, the DC-DC device for micro- mixed controller is used as the power of 48v and 12v power utilization network to convert in the car
Module uses, and corresponding peripheral circuit is arranged for the device according to demand when in use, needed for peripheral circuit can provide for it
The electric signals such as voltage, the electric current wanted.Referring to Fig. 1, which includes buck converter 1, driving unit 2, first capacitor C1 and
Two capacitor C2.It wherein, include the first metal-oxide-semiconductor 11, the second metal-oxide-semiconductor 12 and inductance L in buck converter 1.Wherein the first metal-oxide-semiconductor 11
First end and 48v power supply VHOutput end connection, second end connect with the first end of inductance L, controlled terminal and driving unit 2
Drive output connection；The first end of second metal-oxide-semiconductor 12 is connect with the first end of inductance L, second end ground connection, controlled terminal and driving
The drive output of unit 2 connects；Output end of the second end of inductance L as buck converter 1.One end of first capacitor C1 with
48V power supply VHOutput end connection, the other end ground connection；One end of second capacitor C2 and 12V power supply VLOutput end connection, it is another
End ground connection.Driving unit 2 can control the on or off of the first metal-oxide-semiconductor 11 and the second metal-oxide-semiconductor 12.When the device needs to export
When 48v voltage, then the first metal-oxide-semiconductor 11 is in the conductive state, and the second metal-oxide-semiconductor 12 is in off state；When the device need to export 12V
When voltage, then the first metal-oxide-semiconductor 11 is in off state, and the second metal-oxide-semiconductor 12 is in the conductive state.When the device breaks down,
Theoretically the first metal-oxide-semiconductor 11 in buck converter or the second metal-oxide-semiconductor 12 should disconnect in time, to protect the device.
However, in the prior art, the first metal-oxide-semiconductor 11 and the second metal-oxide-semiconductor 12 in buck converter occur in the device
It cannot reliably be disconnected when failure, thus be unable to ensure the device and be effectively protected.
Summary of the invention
In view of this, the device includes: that buck turns the present invention provides a kind of DC-DC device for micro- mixed controller
Parallel operation, first switch tube and driving unit, in which:
The buck converter include the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, the first end of first metal-oxide-semiconductor with it is described
The first end of buck converter connects, and the second end of first metal-oxide-semiconductor is connect with the second end of the buck converter；It is described
The first end of second metal-oxide-semiconductor is connect with the second end of the buck converter, the second end ground connection of second metal-oxide-semiconductor；
The first switch tube is serially connected between the first end of the buck converter and the output end of 48V power supply or described
Between the second end of buck converter and the output end of 12V power supply；
The driving unit, the controlled terminal of drive output and first metal-oxide-semiconductor, second metal-oxide-semiconductor it is controlled
End is connected with the controlled terminal of the first switch tube；
When the driving unit controls first metal-oxide-semiconductor or second metal-oxide-semiconductor conducting, the first switch tube is controlled
Conducting；When the driving unit controls first metal-oxide-semiconductor and second metal-oxide-semiconductor disconnection, it is disconnected to control the first switch tube
It opens.
Preferably, described device further includes second switch:
The second switch is serially connected between the first end of the buck converter and the output end of 48V power supply or described
Between the second end of buck converter and the output end of 12V power supply；
The driving unit, drive output are connect with the controlled terminal of the second switch；The driving unit is also
For when first metal-oxide-semiconductor or second metal-oxide-semiconductor conducting, controlling the second switch conducting.
Preferably, the driving unit is also used to the control when controlling first metal-oxide-semiconductor and second metal-oxide-semiconductor disconnects
The second switch is made to disconnect.
Preferably, the first switch tube is insulating gate type field effect tube；
The anode of parasitic diode in the first switch tube is connect with the second end of the buck converter, and described the
The cathode of parasitic diode in one switching tube is connect with the output end of the 12V power supply；Or
The anode of parasitic diode in the first switch tube is connect with the output end of the 48V power supply, and described first
The cathode of parasitic diode in switching tube is connect with the first end of the buck converter.
Preferably, the second switch is insulating gate type field effect tube；
The anode of parasitic diode in the second switch is connect with the first end of the buck converter, and described the
The cathode of parasitic diode in two switching tubes is connect with the output end of the 48V power supply；Or
The anode of parasitic diode in the second switch is connect with the output end of the 12V power supply, and described second
The cathode of parasitic diode in switching tube is connect with the second end of the buck converter.
On the other hand, the present invention also provides a kind of guard method of DC-DC device for micro- mixed controller, the sides
Method includes: the electric signal when 48V power output end or 12V the power output end output connecting with the DC-DC device not at it
When in corresponding critical field, fault detection signal is exported；
The first metal-oxide-semiconductor, the second metal-oxide-semiconductor and first that the fault detection signal is used to control in the DC-DC device are opened
Pipe is closed to disconnect.
Preferably, the method also includes following steps:
The electric signal of the 48V power output end or 12V power output end output is obtained not in its corresponding standard
Trouble duration in range；
If the trouble duration is greater than or equal to setting time threshold value, shutdown signal is exported；
The shutdown signal is for closing the driving unit.
Preferably, the method also includes following steps:
The difference or described between the corresponding critical field of electric signal exported according to the 48V power output end
Difference between the corresponding critical field of the electric signal of 12V power output end output determines fault type；
CAN signal corresponding with the fault type is exported, to report fault type.
Preferably, the fault type includes the short circuit of 12V power output end, the over-voltage of 48V power supply, the over-voltage of 12V power supply, 48V
Line under-voltage, 12V line under-voltage and pcb board excess temperature.
The present invention also provides a kind of computer readable storage medium, the non-transient computer readable storage medium storage
Computer instruction executes the DC-DC that any one of the above is used for micro- mixed controller when computer executes the computer instruction
The control method of device.
The present invention also provides a kind of electronic equipment of DC-DC device for micro- mixed controller, the equipment include: to
A few processor；And the memory being connect at least one described processor communication；Wherein,
The memory is stored with the instruction that can be executed by one processor, and described instruction is by described at least one
It manages device to execute, so that at least one described processor is able to carry out the DC- for being used for micro- mixed controller described in any one of the above
The control method of DC device.
Provided by the present invention for DC-DC device, control method, computer readable storage medium and the use of micro- mixed controller
In the electronic equipment of the DC-DC device of micro- mixed controller, first switch tube conducting is controlled by driving unit and is disconnected, can be kept away
Exempt to make the device be damaged due to the first metal-oxide-semiconductor and the second metal-oxide-semiconductor can not be disconnected reliably.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the DC-DC device in the prior art for micro- mixed controller；
Fig. 2 is the structural schematic diagram for the DC-DC device for micro- mixed controller that the embodiment of the present invention one provides；
Fig. 3 is the structural schematic diagram of the DC-DC device provided by Embodiment 2 of the present invention for micro- mixed controller；
Fig. 4 is the flow chart of the control method for the DC-DC device for micro- mixed controller that the embodiment of the present invention three provides；
Fig. 5 is the flow chart of the control method for the DC-DC device for micro- mixed controller that the embodiment of the present invention four provides；
Fig. 6 is that the structure of the electronic equipment for the DC-DC device for micro- mixed controller that the embodiment of the present invention six provides is shown
It is intended to.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, clearly and completely describes technical solution of the present invention by embodiment, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.
In an embodiment of the present invention, the first end of the first metal-oxide-semiconductor is drain electrode, and second end is source electrode, and controlled terminal is grid；
The first end of second metal-oxide-semiconductor is drain electrode, and second end is source electrode, and controlled terminal is grid.The controlled terminal of first switch tube is grid；The
The controlled terminal of two switching tubes is grid.
In addition, the connection between two elements mentioned in following embodiment of the present invention, essence refer to two elements
Between there is the connection relationship that conducts, therefore the connection relationship between two elements can be to be directly connected to or in succession
It connects, when two elements are to be indirectly connected with relationship, electrical component can be set between two elements, such as resistance, capacitor, inductance
Deng.
Embodiment one
DC-DC device provided in this embodiment for micro- mixed controller controls first switch tube by driving unit.
As shown in Fig. 2, the DC-DC device for micro- mixed controller includes: buck converter 1, driving unit 2, first opens
Close pipe 31, first capacitor C1 and the second capacitor C2.It wherein, include the first metal-oxide-semiconductor 11,12 and of the second metal-oxide-semiconductor in buck converter 1
Inductance L.Wherein the first end of the first metal-oxide-semiconductor 11 is connect with the first end of buck converter 1, and second end turns through inductance L and buck
The second end of parallel operation connects；The first end of second metal-oxide-semiconductor 12 is connect through inductance L with the second end of buck converter 1, the second termination
Ground.One end of first capacitor C1 and 48V power supply VHOutput end connection, the other end ground connection；One end of second capacitor C2 and 12V electricity
Source VLOutput end connection, the other end ground connection.First switch tube 31 is serially connected with the first end and 48V power supply V of buck converter 1H's
Between output end or the second end of buck converter 1 and 12V power supply VLOutput end between；The drive output of driving unit 2
It is connect with the controlled terminal of the controlled terminal of the first metal-oxide-semiconductor 11, the controlled terminal of the second metal-oxide-semiconductor 12 and first switch tube 31.Driving unit 2
Including MCU chip and current control chip, for example, MCU chip can select Infineon TC234L, and current control chip can
To select the LM5170 of TI.
When DC-DC device for micro- mixed controller works normally, driving unit 2 controls the first metal-oxide-semiconductor 11 or the 2nd MOS
Pipe 12 is connected, and control first switch tube 31 is connected.When the device occur certain specific failures (such as: 48V power supply VHOver-voltage or
Under-voltage, 12V power supply VLOver-voltage or under-voltage, 12V power supply VLThe failures such as the pcb board excess temperature of short circuit or the device) when, driving unit
The first metal-oxide-semiconductor 11 and the second metal-oxide-semiconductor 12 in 2 control buck converters 1 disconnect.In practical applications, the first metal-oxide-semiconductor 11 and
Two metal-oxide-semiconductors 12 can not may reliably be disconnected because of above-mentioned failure.Therefore, driving unit 2 controls the disconnection of first switch tube 1 at this time
So that entire circuit disconnects.
DC-DC device provided in this embodiment for micro- mixed controller controls first switch tube by driving unit and leads
On and off is opened, to avoid making the device be damaged due to the first metal-oxide-semiconductor and the second metal-oxide-semiconductor can not be disconnected reliably.
Embodiment two
DC-DC device provided in this embodiment for micro- mixed controller controls first switch tube and the by driving unit
Two switching tubes.
As shown in figure 3, the DC-DC device for micro- mixed controller includes: buck converter 1, driving unit 2, first opens
Close pipe 31, second switch 32, first capacitor C1 and the second capacitor C2.Wherein, in buck converter 1 include the first metal-oxide-semiconductor 11,
Second metal-oxide-semiconductor 12 and inductance L.The first end of first metal-oxide-semiconductor 11 is connect with the first end of buck converter 1, and second end is through inductance L
It is connect with the second end of buck converter 1；The first end of second metal-oxide-semiconductor 12 connects through the second end of inductance L and buck converter 1
It connects, second end ground connection.One end of first capacitor C1 and 48V power supply VHOutput end connection, the other end ground connection；Second capacitor C2's
One end and 12V power supply VLOutput end connection, the other end ground connection.First switch tube 31 is serially connected with the first end of buck converter 1
With 48V power supply VHOutput end between or buck converter 1 second end and 12V power supply VLOutput end between；Second switch
32 are serially connected with the first end and 48V power supply V of buck converter 1HOutput end between or buck converter 1 second end and 12V
Power supply VLOutput end between；The quilt of the controlled terminal of the drive output of driving unit 2 and the first metal-oxide-semiconductor 11, the second metal-oxide-semiconductor 12
Control end, the controlled terminal of first switch tube 31 is connected with the controlled terminal of second switch 32.First switch tube 31 and second switch
32 be insulating gate type field effect tube, and the anode of the parasitic diode of first switch tube 31 connects with the second end of buck converter 1
It connects, cathode and 12V power supply VLOutput end connection (or: anode and the 48V power supply V of parasitic diode in first switch tube 31H
Output end connection, cathode connect with the first end of buck converter 1)；The parasitic diode of second switch 32 anode with
The first end of buck converter 1 connects, cathode and 48V power supply VHOutput end connection (or: the parasitism two in 32 pipe of second switch
Anode and the 12V power supply V of pole pipeLOutput end connection, cathode connect with the second end of buck converter 1).
When DC-DC device for micro- mixed controller works normally, driving unit 2 controls the first metal-oxide-semiconductor 11 or the 2nd MOS
Pipe 12 is connected, and controls first switch tube 31 and the conducting of two switching tubes 32.
When vehicle stall parking when, the DC-DC device for micro- mixed controller should stop working, at this time if generate from
12V power supply VLTo 48V power supply VHLeakage current failure, then driving unit 2 will drive first switch tube 31 and second switch 32
It disconnects, since the sense of current in the direction of the leakage current and the parasitic diode of first switch tube 31 is on the contrary, the parasitism
Diode cut-off, to prevent leakage current from 12V power supply VLOutput end flow to 48V power supply VHOutput end, make whole device
It is protected.
When vehicle stall parking, if there is 12V power supply V in the DC-DC device for micro- mixed controllerLBattery connect
Anti- failure is then generated from 12V power supply VLFlow to 48V power supply VHElectric current.Driving unit 2 will drive first switch tube 31 and the
Two switching tubes 32 disconnect, at this time due in the parasitic diode of second switch 32 current direction with from 12V power supply VLStream
To 48V power supply VHCurrent direction on the contrary, the parasitic diode end, prevent electric current from 12V power supply VLFlow to 48V power supply VH,
Protect whole device.
DC-DC device provided in this embodiment for micro- mixed controller controls first switch tube and the by driving unit
Two switching tubes, it is opposite with the current direction in entire circuit using the current direction in parasitic diode when generation specific fault
Characteristic can occur reversed to the battery of the leakage current of 48V power supply or 12V power supply from 12V power supply in vehicle stall
The device is protected not to be damaged when failure.
Embodiment three
The control method of DC-DC device provided in this embodiment for micro- mixed controller, as the 48V being connect with the device
When power output end or the electric signal of 12V power output end output be not in its corresponding critical field, output fault detection letter
Number to control the first metal-oxide-semiconductor, the second metal-oxide-semiconductor and first switch tube disconnect.
The DC-DC apparatus structure for micro- mixed controller in the present embodiment as shown in Fig. 2, its working principle referring to implementation
Associated description in example one.As shown in figure 4, steps are as follows for control method provided in this embodiment:
The electric signal of 48V power output end or the output of 12V power output end that S301, detection are connect with the device.
For example, the voltage U for the 48V power output end that detection is connect with the deviceH, and connect with the device
The voltage U of 12V power output endL。
If S302, the electric signal in its corresponding critical field, do not export fault detection signal.
If UHGreater than predetermined value (such as 54V), illustrate 48V power supply over-voltage, exports fault detection signal；If ULIt is greater than
Predetermined value (such as 16V) illustrates 12V power supply over-voltage, exports fault detection signal.
S303, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor and first switch tube disconnection are controlled according to fault detection signal.
Driving unit controls the first metal-oxide-semiconductor, the second metal-oxide-semiconductor in buck converter according to fault detection signal and disconnects.?
In practical application, when the device breaks down, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor cannot be disconnected reliably, and therefore, driving unit is also
First switch tube can be controlled according to fault detection signal to disconnect, to disconnect the entire circuit of the device.
Above to be described for the failure of the over-voltage of 48V power supply and 12V power supply over-voltage, for 48V line under-voltage, 12V
Pcb board overheat (the detection of line under-voltage, 12V power supply short circuit (electric signal that need to be detected is relevant current value) and the device
The corresponding relevant voltage of different temperatures or current value) failure control method be it is similar, details are not described herein again.
Example IV
The control method of DC-DC device provided in this embodiment for micro- mixed controller, when trouble duration is greater than
Or when being equal to setting time threshold value, driving unit of the shutdown signal to close in the device is exported.
The DC-DC apparatus structure for micro- mixed controller in the present embodiment as shown in figure 3, its working principle referring to implementation
Associated description in example one, two.As shown in figure 5, steps are as follows for control method provided in this embodiment:
The electric signal of 48V power output end or the output of 12V power output end that S401, detection are connect with the device.
For example, the voltage U for the 48V power output end that detection is connect with the deviceH, and connect with the device
The voltage U of 12V power output endL。
If S402, the electric signal be not in its corresponding critical field, it is determined that fault type, and export fault detection
Signal.
If UHLess than predetermined value (such as 24V), it is determined that fault type is 48V line under-voltage, and exports fault detection
Signal.
If ULLess than predetermined value (such as 9V), it is determined that fault type is 12V line under-voltage, and exports fault detection letter
Number.
S403, broken according to the first metal-oxide-semiconductor of fault detection signal control, the second metal-oxide-semiconductor, first switch tube and second switch
It opens.
Driving unit controls the first metal-oxide-semiconductor, the second metal-oxide-semiconductor in buck converter according to fault detection signal and disconnects.?
In practical application, when the device breaks down, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor cannot be disconnected reliably, therefore, driving unit root
It is disconnected according to fault detection signal control first switch tube, second switch, to disconnect the entire circuit of the device.
If S404, trouble duration are less than setting time threshold value, CAN letter corresponding with the fault type is exported
Number to report fault type.
When fault type is 48V line under-voltage, if the Failure elimination, which enters hiccup mode.If this
Trouble duration is less than setting time threshold value (such as 110ms), then is regarded as temporary derangement, output and the fault type phase
Corresponding CAN signal Accessory Power Module High Side Under Voltage is to report this temporary derangement.
When fault type is 12V line under-voltage, if the Failure elimination, which enters hiccup mode.If this
Trouble duration is less than setting time threshold value (such as 110ms), then is regarded as temporary derangement, output and the fault type phase
Corresponding CAN signal Accessory Power Module Low Side Under Voltage is to report this temporary derangement.
If S405, trouble duration are greater than or equal to setting time threshold value, shutdown signal is exported；The closing letter
Number for closing the driving unit.
If the malfunction duration of 48V line under-voltage is more than or equal to setting time threshold value, which is considered as
Permanent fault, output shutdown signal close driving unit, first switch tube, second switch, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor
It is successively disconnected, the DC-DC device for micro- mixed controller reports the permanent fault, if trouble shooting (48V power supply after this
Voltage be more than or equal to 26V), cancellation is reported into the permanent fault after setting time threshold value (such as 110ms).
If the malfunction duration of 12V line under-voltage is more than or equal to setting time threshold value, which is considered as
Permanent fault, output shutdown signal close driving unit, first switch tube, second switch, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor
It is successively disconnected, the DC-DC device for micro- mixed controller reports the permanent fault, if trouble shooting (12V power supply after this
Voltage be more than or equal to 10V), cancellation is reported into the permanent fault after setting time threshold value (such as 110ms).
It, in the present embodiment, can be true above to be described for the failure of 48V line under-voltage and 12V line under-voltage
Fixed fault type include: the over-voltage of 48V power supply, 48V line under-voltage, the over-voltage of 12V power supply, 12V line under-voltage, 12V power supply short circuit,
And the device pcb board overheat failure, the control method for these failures be it is similar, no longer repeat one by one herein.
Embodiment five
Present embodiments provide a kind of non-transitory computer storage medium, the non-transient computer readable storage medium
Computer instruction is stored, when computer executes the computer instruction, executes any one of the above for micro- mixed controller
The control method of DC-DC device.
Embodiment six
Present embodiments provide a kind of electronic equipment of the control of DC-DC device for micro- mixed controller.
As shown in fig. 6, the electronic equipment of the control of the DC-DC device for micro- mixed controller includes: at least one processing
Device 701；And the memory 702 with the communication connection of at least one described processor 701；Wherein, the memory 702 stores
There is the instruction that can be executed by one processor 701, described instruction is executed by least one described processor 701, so that institute
It states at least one processor 701 and is able to carry out control method of any one of the above for the DC-DC device of micro- mixed controller.Figure
In 6 by taking a processor 701 as an example, the electronic equipment of the control of the DC-DC device for micro- mixed controller can also include: defeated
Enter device 703 and output device 704.
Processor 701, memory 702, input unit 703 and output device 704 can pass through bus or other modes
It connects, in Fig. 6 for being connected by bus.
Memory 702 is used as a kind of non-volatile computer readable storage medium storing program for executing, can be used for storing non-volatile software journey
Sequence, non-volatile computer executable program and module, as the DC-DC for micro- mixed controller in the embodiment of the present application is filled
Corresponding program instruction/the module of the control method set.Processor 701 is stored in non-volatile in memory 702 by operation
Software program, instruction and module, thereby executing the various function application and data processing of server, i.e. the realization above method
The control method of the DC-DC device for micro- mixed controller of embodiment.
Memory 702 may include storing program area and storage data area, wherein storing program area can store operation system
Application program required for system, at least one function；Storage data area can be stored according to the DC-DC device for being used for micro- mixed controller
Use created data etc..In addition, memory 702 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other non-volatile solid state memory parts.One
In a little embodiments, optional memory 702 includes the memory remotely located relative to processor 701, these remote memories can
To pass through network connection to the DC-DC device for being used for micro- mixed controller.The example of above-mentioned network includes but is not limited to internet, enterprise
Industry intranet, local area network, mobile radio communication and combinations thereof.
Input unit 703 can receive the number or character information of input, and generate and the DC-DC for micro- mixed controller
Device and the related key signals input of function control.Output device 704 may include that display screen etc. shows equipment.
One or more of modules are stored in the memory 702, when by one or more of processors
When 701 execution, the control method of the DC-DC device for micro- mixed controller in above-mentioned any means embodiment is executed.
Method provided by the embodiment of the present application can be performed in the said goods, has the corresponding functional module of execution method and has
Beneficial effect.The not technical detail of detailed description in the present embodiment, reference can be made to method provided by the embodiment of the present application.
The electronic equipment of the embodiment of the present invention exists in a variety of forms, including but not limited to:
(1) mobile communication equipment: the characteristics of this kind of equipment is that have mobile communication function, and to provide speech, data
Communication is main target.This Terminal Type includes: smart phone (such as iPhone), multimedia handset, functional mobile phone and low
Hold mobile phone etc..
(2) super mobile personal computer equipment: this kind of equipment belongs to the scope of personal computer, there is calculating and processing function
Can, generally also have mobile Internet access characteristic.This Terminal Type includes: PDA, MID and UMPC equipment etc., such as iPad.
(3) portable entertainment device: this kind of equipment can show and play multimedia content.Such equipment include: audio,
Video player (such as iPod), handheld device, e-book and intelligent toy and portable car-mounted navigation equipment.
(4) server: providing the equipment of the service of calculating, and the composition of server includes that processor, hard disk, memory, system are total
Line etc., server is similar with general computer architecture, but due to needing to provide highly reliable service, in processing energy
Power, stability, reliability, safety, scalability, manageability etc. are more demanding.
(5) other electronic devices with data interaction function.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from of the invention original, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (11)
1. a kind of DC-DC device for micro- mixed controller, which is characterized in that described device includes: buck converter, first opens
Close pipe and driving unit, in which:
The buck converter includes the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, and the first end of first metal-oxide-semiconductor and the buck turn
The first end of parallel operation connects, and the second end of first metal-oxide-semiconductor is connect with the second end of the buck converter；Described second
The first end of metal-oxide-semiconductor is connect with the second end of the buck converter, the second end ground connection of second metal-oxide-semiconductor；
The first switch tube is serially connected between the first end of the buck converter and the output end of 48V power supply or the buck
Between the second end of converter and the output end of 12V power supply；
The driving unit, the controlled terminal of drive output and first metal-oxide-semiconductor, the controlled terminal of second metal-oxide-semiconductor and
The controlled terminal of the first switch tube connects；
When the driving unit controls first metal-oxide-semiconductor or second metal-oxide-semiconductor conducting, controls the first switch tube and lead
It is logical；When the driving unit controls first metal-oxide-semiconductor and second metal-oxide-semiconductor disconnection, controls the first switch tube and disconnect.
2. the DC-DC device according to claim 1 for micro- mixed controller, which is characterized in that described device further includes
Second switch:
The second switch is serially connected between the first end of the buck converter and the output end of 48V power supply or the buck
Between the second end of converter and the output end of 12V power supply；
The driving unit, drive output are connect with the controlled terminal of the second switch；The driving unit is also used to
When first metal-oxide-semiconductor or second metal-oxide-semiconductor are connected, the second switch conducting is controlled.
3. the DC-DC device according to claim 2 for micro- mixed controller, it is characterised in that:
The driving unit is also used to when controlling first metal-oxide-semiconductor and second metal-oxide-semiconductor disconnects, and control described second is opened
Pipe is closed to disconnect.
4. the DC-DC device according to claim 1-3 for micro- mixed controller, it is characterised in that:
The first switch tube is insulating gate type field effect tube；
The anode of parasitic diode in the first switch tube is connect with the second end of the buck converter, and described first opens
The cathode of the parasitic diode of Guan Guanzhong is connect with the output end of the 12V power supply；Or
The anode of parasitic diode in the first switch tube is connect with the output end of the 48V power supply, the first switch
The cathode of parasitic diode in pipe is connect with the first end of the buck converter.
5. the DC-DC device according to claim 4 for micro- mixed controller, it is characterised in that:
The second switch is insulating gate type field effect tube；
The anode of parasitic diode in the second switch is connect with the first end of the buck converter, and described second opens
The cathode of the parasitic diode of Guan Guanzhong is connect with the output end of the 48V power supply；Or
The anode of parasitic diode in the second switch is connect with the output end of the 12V power supply, the second switch
The cathode of parasitic diode in pipe is connect with the second end of the buck converter.
6. a kind of control method of any one in claim 1 to 5 for the DC-DC device of micro- mixed controller, feature exist
In, which comprises
When the electric signal of 48V power output end or 12V the power output end output connected with the DC-DC device is corresponding not at its
Critical field in when, export fault detection signal；
The fault detection signal is used to control the first metal-oxide-semiconductor, the second metal-oxide-semiconductor and the first switch tube in the DC-DC device
It disconnects.
7. control method according to claim 6, which is characterized in that the method also includes following steps:
The electric signal of the 48V power output end or 12V power output end output is obtained not in its corresponding critical field
Interior trouble duration；
If the trouble duration is greater than or equal to setting time threshold value, shutdown signal is exported；
The shutdown signal is for closing the driving unit.
8. control method according to claim 6 or 7, which is characterized in that the method also includes following steps:
According to the difference or 12V electricity between the corresponding critical field of the electric signal of 48V power output end output
Difference between the corresponding critical field of the electric signal of source output terminal output determines fault type；
CAN signal corresponding with the fault type is exported, to report fault type.
9. control method according to claim 8, which is characterized in that the fault type includes that 12V power output end is short
Road, the over-voltage of 48V power supply, the over-voltage of 12V power supply, 48V line under-voltage, 12V line under-voltage and pcb board excess temperature.
10. a kind of computer readable storage medium, which is characterized in that the non-transient computer readable storage medium storage calculates
Machine instruction, when computer executes the computer instruction, for micro- mixed described in any one of perform claim requirement 6 to 9
The control method of the DC-DC device of controller.
11. a kind of electronic equipment of the DC-DC device for micro- mixed controller, which is characterized in that the equipment includes: at least one
A processor；And the memory being connect at least one described processor communication；Wherein,
The memory is stored with the instruction that can be executed by one processor, and described instruction is by least one described processor
It executes, so that at least one described processor is able to carry out described in any one of claim 6 to 9 for micro- mixed controller
DC-DC device control method.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056533.4A CN109687712A (en) | 2019-01-22 | 2019-01-22 | DC-DC device, control method for micro- mixed controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056533.4A CN109687712A (en) | 2019-01-22 | 2019-01-22 | DC-DC device, control method for micro- mixed controller |
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| CN201910056533.4A Pending CN109687712A (en) | 2019-01-22 | 2019-01-22 | DC-DC device, control method for micro- mixed controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248333A1 (en) * | 2020-06-09 | 2021-12-16 | 华为数字能源技术有限公司 | Buck circuit, buck apparatus and circuit control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204886175U (en) * | 2015-08-27 | 2015-12-16 | 成都新欣神风电子科技有限公司 | Antisurge module |
| CN105827108A (en) * | 2015-01-26 | 2016-08-03 | 株式会社村田制作所 | Power supply device |
| KR20170078437A (en) * | 2015-12-29 | 2017-07-07 | 엘에스오토모티브 주식회사 | Method and system for protecting bidirectional dc-dc converter |
| CN208226864U (en) * | 2015-06-11 | 2018-12-11 | 乐星汽车科技有限公司 | With the non-isolation type bidirectional DC-DC converter for improving stability |
-
2019
- 2019-01-22 CN CN201910056533.4A patent/CN109687712A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827108A (en) * | 2015-01-26 | 2016-08-03 | 株式会社村田制作所 | Power supply device |
| CN208226864U (en) * | 2015-06-11 | 2018-12-11 | 乐星汽车科技有限公司 | With the non-isolation type bidirectional DC-DC converter for improving stability |
| CN204886175U (en) * | 2015-08-27 | 2015-12-16 | 成都新欣神风电子科技有限公司 | Antisurge module |
| KR20170078437A (en) * | 2015-12-29 | 2017-07-07 | 엘에스오토모티브 주식회사 | Method and system for protecting bidirectional dc-dc converter |
Non-Patent Citations (2)
| Title |
|---|
| 张国伟主编: "《终点效应及应用技术》", 28 February 2006 * |
| 黄立新主编: "《城市轨道交通车辆故障诊断》", 31 January 2014 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248333A1 (en) * | 2020-06-09 | 2021-12-16 | 华为数字能源技术有限公司 | Buck circuit, buck apparatus and circuit control method |
| CN114072999A (en) * | 2020-06-09 | 2022-02-18 | 华为数字能源技术有限公司 | Voltage reduction circuit, voltage reduction device and circuit control method |
| EP4156487A4 (en) * | 2020-06-09 | 2023-07-05 | Huawei Digital Power Technologies Co., Ltd. | Buck circuit, buck apparatus and circuit control method |
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Application publication date: 20190426 |