CN108595777A - Switching device power attenuation computational methods, device and equipment in circuit - Google Patents
Switching device power attenuation computational methods, device and equipment in circuit Download PDFInfo
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- CN108595777A CN108595777A CN201810282486.0A CN201810282486A CN108595777A CN 108595777 A CN108595777 A CN 108595777A CN 201810282486 A CN201810282486 A CN 201810282486A CN 108595777 A CN108595777 A CN 108595777A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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- G—PHYSICS
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Abstract
Switching device power attenuation computational methods, device and equipment, this method include in a kind of circuit of the application proposition：Determine the corresponding loss model collection of switching device in circuit, wherein loss model concentration includes on-state loss model, conduction loss model and turn-off power loss model；The simulation model of circuit is run, current value and voltage value of the switching device in each state in circuit are obtained；According to current value, voltage value and loss model collection of the switching device in each state, the power attenuation of switching device in circuit is determined.As a result, by using the loss model collection of switching device, switching device power attenuation in circuit is calculated, the calculating accuracy to switching device power loss is not only increased, also saves human resources, the user experience is improved.
Description
Technical field
This application involves switching device power attenuation computational methods, dresses in electronic technology field more particularly to a kind of circuit
It sets and equipment.
Background technology
In general, when carrying out circuit design, when especially carrying out high-frequency circuit design, need to being switched used in circuit
The power attenuation of device is calculated.According to the power attenuation of switching device in circuit, thermal design and layout are carried out to circuit
Design.
Mostly it is electricity when being worked according to switching device by designer currently, in counting circuit when the loss of switching device
Pressure and electric current, calculate the power attenuation of switching device.
But above-mentioned computational methods, not only waste of manpower, but also the accuracy calculated is poor.
Invention content
The application is intended to solve at least some of the technical problems in related technologies.
For this purpose, switching device power attenuation computational methods in a kind of circuit of the application proposition, this method is by using switch
The loss model collection of device calculates switching device power attenuation in circuit, not only increases to switch device power damage
The calculating accuracy of consumption, also saves human resources, the user experience is improved.
The application also proposes switching device power attenuation computing device in a kind of circuit.
The application also proposes a kind of electronic equipment.
The application also proposes a kind of computer readable storage medium.
The application first aspect embodiment proposes switching device power attenuation computational methods in a kind of circuit, including：Really
The corresponding loss model collection of switching device in circuit is determined, wherein loss model concentration includes on-state loss model, conducting damage
Consume model and turn-off power loss model；The simulation model for running the circuit obtains in the circuit switching device in each state
When current value and voltage value；According to current value, voltage value and the loss model of the switching device in each state
Collection, determines power attenuation of the switching device in the circuit.
Switching device power attenuation computational methods in circuit provided by the embodiments of the present application, it is first determined derailing switch in circuit
Then the corresponding loss model collection of part runs the simulation model of circuit, to obtain switching device in circuit in each state
Current value and voltage value, and then current value, voltage value and loss model collection according to switching device in each state, determination are opened
Close the power attenuation of device in circuit.As a result, by using the loss model collection of switching device, to switching device work(in circuit
Rate loss is calculated, and is not only increased the calculating accuracy to switching device power loss, is also saved human resources, is promoted
User experience.
In addition, switching device power attenuation computational methods can also have such as in the circuit that the above embodiments of the present application propose
Under additional technical characteristic：
Optionally, in the application one embodiment, the corresponding loss model collection of switching device in the determining circuit, packet
It includes：Obtain the typical performance curve of the switching device；Processing is fitted to the typical performance curve of the switching device, it is raw
At the loss model collection.
Optionally, in another embodiment of the application, the switching device is Metal-Oxide Semiconductor field-effect
Transistor；The loss model concentration further includes that diode introspection restores loss model.
Optionally, in another embodiment of the application, switching device is in each state in the acquisition circuit
When current value and voltage value, including：It obtains conduction voltage drop and conducting electric current of the switching device in on-state, opening
The voltage and current values at both ends in journey, in turn off process both ends voltage and current values.
Optionally, in another embodiment of the application, work(of the determination switching device in the circuit
Rate is lost, including：According to current value, voltage value and the loss model collection of the switching device in each state, determine
Loss value of the switching device in each switch periods；According to the working frequency of the switching device and in each period
Loss value determines power attenuation of the switching device in the circuit.
The application second aspect embodiment proposes switching device power attenuation computing device in a kind of circuit, including：The
One determining module, for determining the corresponding loss model collection of switching device in circuit, wherein it includes logical that the loss model, which is concentrated,
State loss model, conduction loss model and turn-off power loss model；First acquisition module, the emulation mould for running the circuit
Type obtains current value and voltage value of the switching device in each state in the circuit；Second determining module, for according to institute
Current value, voltage value and the loss model collection of the switching device in each state are stated, determines the switching device described
Power attenuation in circuit.
Switching device power attenuation computing device in circuit provided by the embodiments of the present application, it is first determined derailing switch in circuit
Then the corresponding loss model collection of part runs the simulation model of circuit, to obtain switching device in circuit in each state
Current value and voltage value, and then current value, voltage value and loss model collection according to switching device in each state, determination are opened
Close the power attenuation of device in circuit.As a result, by using the loss model collection of switching device, to switching device work(in circuit
Rate loss is calculated, and is not only increased the calculating accuracy to switching device power loss, is also saved human resources, is promoted
User experience.
In addition, switching device power attenuation computing device can also have such as in the circuit that the above embodiments of the present application propose
Under additional technical characteristic：
Optionally, in the application one embodiment, first determining module, including：Subelement is obtained, for obtaining
The typical performance curve of the switching device；Subelement is generated, is intended for the typical performance curve to the switching device
Conjunction is handled, and generates the loss model collection.
Optionally, in the application another embodiment, the switching device is that Metal-Oxide Semiconductor field-effect is brilliant
Body pipe；The loss model concentration further includes that diode introspection restores loss model.
Optionally, in the application another embodiment, first acquisition module specifically includes：Obtain the derailing switch
Conduction voltage drop and conducting electric current of the part in on-state, in opening process the voltage and current values at both ends, in turn off process
The voltage and current values at both ends.
Optionally, in the application another embodiment, second determining module, including：First determination subelement is used
Current value, voltage value when according to the switching device in each state and the loss model collection, determine the derailing switch
Loss value of the part in each switch periods；Second determination subelement, for according to the working frequency of the switching device and every
Loss value in a period determines power attenuation of the switching device in the circuit.
The application third aspect embodiment proposes a kind of electronic equipment, including memory, processor and is stored in storage
On device and the computer program that can run on a processor, when the processor executes described program, realize that first aspect is implemented
Switching device power attenuation computational methods in circuit described in example.
Electronic equipment provided by the embodiments of the present application, it is first determined the corresponding loss model collection of switching device in circuit, so
The simulation model for running circuit afterwards, to obtain current value and voltage value of the switching device in each state, Jin Ergen in circuit
According to current value, voltage value and loss model collection of the switching device in each state, the power of switching device in circuit is determined
Loss.As a result, by using the loss model collection of switching device, switching device power attenuation in circuit is calculated, not only
The calculating accuracy to switching device power loss is improved, also saves human resources, the user experience is improved.
The application fourth aspect embodiment proposes a kind of computer readable storage medium, is stored thereon with computer journey
Sequence when described program is executed by processor, realizes switching device power attenuation computational methods in circuit as described in relation to the first aspect.
Description of the drawings
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 be the application one embodiment circuit in switching device power attenuation computational methods flow chart；
Fig. 2 be the application one embodiment circuit in switching device power attenuation computing device structural schematic diagram；
Fig. 3 be another embodiment of the application circuit in switching device power attenuation computing device structural schematic diagram；
Fig. 4 is the structural schematic diagram of the electronic equipment of the application one embodiment.
Specific implementation mode
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and should not be understood as the limitation to the application.
Each embodiment of the application, mainly for available circuit design to the power attenuation of switching device used in circuit into
When row calculates, voltage and current when designer being needed to be worked according to switching device carries out the power attenuation of switching device
Artificial to calculate, not only waste of manpower, but also the problem that the accuracy that calculates is poor proposes that switching device power damages in a kind of circuit
Consume computational methods.
Switching device power attenuation computational methods in circuit provided by the embodiments of the present application, it is first determined derailing switch in circuit
The corresponding loss model collection of part, wherein loss model concentration include on-state loss model, conduction loss model and turn-off power loss mould
Then type runs the simulation model of circuit, obtain current value and voltage value of the switching device in each state in circuit, in turn
According to current value, voltage value and loss model collection of the switching device in each state, the work(of switching device in circuit is determined
Rate is lost.As a result, by using the loss model collection of switching device, switching device power attenuation in circuit is calculated, no
The calculating accuracy to switching device power loss is improved only, also saves human resources, the user experience is improved.
Below with reference to the accompanying drawings switching device power attenuation computational methods, device in the circuit of the embodiment of the present application are described and is set
It is standby.
First in conjunction with attached drawing 1, switching device power attenuation computational methods in circuit provided by the embodiments of the present application are carried out
It illustrates.
Fig. 1 be the application one embodiment circuit in switching device power attenuation computational methods flow diagram.
As shown in Figure 1, switching device power attenuation computational methods may comprise steps of in the circuit：
Step 101, the corresponding loss model collection of switching device in circuit is determined, wherein loss model concentration includes on-state damage
Consume model, conduction loss model and turn-off power loss model.
Specifically, switching device power attenuation computational methods in circuit provided by the embodiments of the present application, it can be by the application
Switching device power attenuation computing device executes in the circuit that embodiment provides, and above-mentioned apparatus is configured in electronic equipment, with
It realizes and the switching device power attenuation calculating in circuit is controlled.
Wherein, electronic equipment can be the hardware device for arbitrarily having switch device circuit, and the present embodiment does not make this to have
Body limits.
In general, in actual application, switching device may be at following three kinds of working conditions in circuit：Shape is connected
State, off state, on-state state.And when switching device is in the free position in above-mentioned three kinds of working conditions in circuit, can
The power of switching device in losser circuit.Therefore, in order to it is flexible, quick, accurately calculate switching device in circuit,
Power attenuation when arbitrary working condition, the present embodiment can generate corresponding loss according to the typical performance curve of switching device
Then Models Sets calculate the power attenuation of switching device according to the loss model collection of generation.
Specifically, the present embodiment can first obtain the typical performance curve of switching device in circuit, then to the typical case of acquisition
Performance curve is fitted processing, to generate corresponding loss model collection.
Wherein, the typical performance curve of switching device may be, but not limited to, in circuit：Conducting voltage is bent with current relationship
Line, conduction loss and current-voltage correlation curve, turn-off power loss and current-voltage correlation curve etc., the present embodiment does not make this
It is specific to limit.
It is understood that the application is by obtaining the corresponding typical performance curve of switching device, with the typical case to acquisition
Performance curve carry out Mathematical Fitting, obtain corresponding loss model collection, consequently facilitating subsequently to the power consumption of switching device be lost into
Row calculating operation.
Further, in a realization method in this application, switching device can also be metal-oxide in circuit
Semiconductor field effect transistor.
Specifically, instantaneous reversed in order to protect Metal-Oxide Semiconductor field-effect transistor not generated in circuit
Electric current punctures, and when actual process operates, two poles can be arranged in above-mentioned Metal-Oxide Semiconductor field-effect transistor
Pipe.
It is corresponding, can also include that reverse recovery charge is closed with electric current in the typical performance curve of the switching device of acquisition
It is curve, and can also includes in the loss model generated in step 101：Diode reverse recovery losses model.
That is, when the switching device in foregoing circuit is Metal-Oxide Semiconductor field-effect transistor, this reality
Diode reverse recovery losses model can also be generated according to reverse recovery charge and current relationship curve by applying example.
Step 102, the simulation model of circuit is run, current value and electricity of the switching device in each state in circuit are obtained
Pressure value.
Specifically, before executing step 102, switching device power attenuation computing device needs imitative using circuit in circuit
True software establishes circuit simulation model.Wherein, in the present embodiment, circuit simulation model can be emulated by following circuits it is soft
In part any one establish, such as：Pspice, Simetrix/Simplis, Matlab/Simulink, Psim,
LTspice, Tina-TI etc., the present embodiment is not especially limited this.
Preferably, in the present embodiment, circuit simulation model is established by circuit simulating software Simulink.
Further, after circuit simulation model foundation, you can the simulation model for running circuit is opened with obtaining in circuit
Close current value and voltage value of the device in each state.
Wherein, current value and voltage value of the switching device in each state in circuit are obtained, may include：It is opened in circuit
It closes conduction voltage drop and conducting electric current of the device in on-state, the voltage and current values at both ends and closed in opening process
The voltage and current values at both ends during disconnected.
Step 103, the current value according to switching device in each state, voltage value and loss model collection determine switch
The power attenuation of device in circuit.
Specifically, the corresponding loss model collection of switching device and switching device are in each state in getting circuit
When current value and voltage value after, can according to current value of the switching device in each state, voltage value and loss model collection,
Loss value of the switching device in each switch periods is determined, then according to the working frequency of switching device and in each period
Loss value determines the power attenuation of switching device in circuit.
When specific implementation, formula (1)-(4) can be first passed through, determine damage of the switching device in different conditions in circuit
Consumption value：
Wherein, Econ indicates that switching device is in the work of the loss value of on-state state, T expression switching devices in formula (1)
Frequency period, Tn indicate material calculation, VconIndicate that conduction voltage drop when switching device is in on-state state, I indicate at switching device
Turn on current value, n when on-state state indicate material calculation number；In formula (2), Eon indicates that switching device is on
Loss value, the V of statebusIndicate that the voltage value, T at both ends when switching device is in the conduction state indicate the power frequency week of switching device
Current value, n indicate opening for switching device when phase, Ts indicate that switching device is in the conduction state for the switch periods of switching device, I
Close cycle times；In formula (3), Eoff indicates that switching device is off the loss value of state, VbusIndicate that switching device is in
The voltage value, T at both ends indicate that the power frequency period of switching device, Ts open for the switch periods of switching device, I expressions when off state
Close the switch periods number of current value when device is off state, n expression switching devices；In formula (4), Err indicates switch
Device reverse recovery loss value, T are the power frequency period of switching device, Ts is the switch periods of switching device, VbusIndicate derailing switch
The voltage value, Ts at both ends indicate that switching device is in the conduction state for the switch periods of switching device, I when part is in the conduction state
When current value, di/dt indicate the pace of change of diode current, and determined by the conducting speed of switching device, n expression derailing switches
The switch periods number of part.
It should be noted that in above-mentioned formula (1)-(4), Eon (Vbus(nTs),I(nTs))、Eoff(Vbus(nTs),I
(nTs))、For the loss model collection in step 101, gone out according to the typical performance curve matching of switching device.
Further, further according to the working frequency of switching device and the loss value in each period, switching device is calculated
Power attenuation in circuit.
For details, reference can be made to formula (5)-(8), realize the calculating of the power attenuation to switching device in circuit：
Wherein, PconIndicate that power attenuation when switching device is in on-state, Econ indicate when switching device is in on-state
Loss value, f indicate the working frequency of switching device, PonIndicate that power attenuation when switching device is in the conduction state, Eon indicate
Loss value, P when switching device is in the conduction stateoffIndicate power attenuation when switching device is off state, Eoff tables
Show loss value, the P when switching device is off staterrExpression switching device is Metal-Oxide Semiconductor field effect transistor
Reverse recovery power attenuation, Err indicate Reverse recovery when switching device is Metal-Oxide Semiconductor field-effect transistor when pipe
Loss value.
It is understood that the present embodiment is by switching device power attenuation computing device in circuit, determining in circuit
The corresponding loss model collection of switching device, and run the simulation model of circuit, to obtain in circuit switching device in each state
When current value and voltage value, the current value of acquisition and voltage value are then substituting to determining loss model and concentrated, with determination
The power attenuation of switching device in circuit, thereby simplifies the calculating process to the power attenuation of switching device in circuit, subtracts
The error caused by artificial calculating is lacked, guarantee is provided for the Exact Design of circuit.
Switching device power attenuation computational methods provided by the embodiments of the present application, it is first determined switching device corresponds in circuit
Loss model collection, then run circuit simulation model, to obtain current value of the switching device in each state in circuit
And voltage value, and then current value, voltage value and loss model collection according to switching device in each state, determine switching device
Power attenuation in circuit.As a result, by using the loss model collection of switching device, to switching device power attenuation in circuit
It is calculated, not only increases the calculating accuracy to switching device power loss, also save human resources, improve user
Experience.
In order to realize above-described embodiment, the application also proposes switching device power attenuation computing device in a kind of circuit.
Fig. 2 be the application one embodiment circuit in switching device power attenuation computing device structural schematic diagram.
As shown in Fig. 2, switching device power attenuation computing device in the circuit, may include：First determining module 21,
One acquisition module 22 and the second determining module 23.
Wherein, the first determining module 21 is for determining the corresponding loss model collection of switching device in circuit, wherein the damage
It includes on-state loss model, conduction loss model and turn-off power loss model to consume Models Sets；
First acquisition module 22 is used to run the simulation model of the circuit, obtains in the circuit switching device each
Current value when state and voltage value；
Second determining module 23 is for current value, voltage value and the damage according to the switching device in each state
Models Sets are consumed, determine power attenuation of the switching device in the circuit.
Specifically, in a kind of possible way of realization of the application, as shown in figure 3, first determining module 21 includes：
Subelement 211 is obtained, subelement 212 is generated.
Wherein, the typical performance curve that subelement 211 is used to obtain the switching device is obtained；
Subelement 212 is generated for being fitted processing to the typical performance curve of the switching device, generates the damage
Consume Models Sets.
Further, in another embodiment of the application, the switching device is imitated for Metal-Oxide Semiconductor field
Answer transistor；
The loss model concentration further includes that diode introspection restores loss model.
In another embodiment of the application, first acquisition module 22 specifically includes：
Obtain conduction voltage drop and conducting electric current of the switching device in on-state, in opening process both ends voltage value
And current value, in turn off process both ends voltage and current values.
Optionally, in another embodiment of the present invention, second determining module 23 includes：First determination subelement
With the second determination subelement.
Wherein, the first determination subelement, for according to current value of the switching device in each state, voltage value and
The loss model collection determines loss value of the switching device in each switch periods；
Second determination subelement is used for the working frequency according to the switching device and the loss value in each period, really
Fixed power attenuation of the switching device in the circuit.
It should be noted that the aforementioned explanation to switching device power attenuation computational methods embodiment in circuit is also fitted
For switching device power attenuation computing device in the circuit of the embodiment, details are not described herein again.
Switching device power attenuation computing device in circuit provided by the embodiments of the present application, it is first determined derailing switch in circuit
Then the corresponding loss model collection of part runs the simulation model of circuit, to obtain switching device in circuit in each state
Current value and voltage value, and then current value, voltage value and loss model collection according to switching device in each state, determination are opened
Close the power attenuation of device in circuit.As a result, by using the loss model collection of switching device, to switching device work(in circuit
Rate loss is calculated, and is not only increased the calculating accuracy to switching device power loss, is also saved human resources, is promoted
User experience.
In order to realize above-described embodiment, the invention also provides a kind of electronic equipment.
Fig. 4 is the structural schematic diagram of the electronic equipment of one embodiment of the invention.
As shown in figure 4, the electronic equipment 100 includes memory 110, processor 120 and is stored on memory 110 and can
The computer program run on processor 120 when processor 120 executes described program, is realized described in first aspect embodiment
Circuit in switching device power attenuation computational methods.Wherein, switching device power attenuation computational methods include in circuit：It determines
The corresponding loss model collection of switching device in circuit, wherein loss model concentration includes on-state loss model, conduction loss
Model and turn-off power loss model；The simulation model for running the circuit obtains in the circuit switching device in each state
Current value and voltage value；According to current value, voltage value and the loss model collection of the switching device in each state,
Determine power attenuation of the switching device in the circuit.
It should be noted that the aforementioned explanation to switching device power attenuation computational methods embodiment in circuit is also fitted
For the electronic equipment of the embodiment, realization principle is similar, and details are not described herein again.
Electronic equipment provided in an embodiment of the present invention, it is first determined the corresponding loss model collection of switching device in circuit, so
The simulation model for running circuit afterwards, to obtain current value and voltage value of the switching device in each state, Jin Ergen in circuit
According to current value, voltage value and loss model collection of the switching device in each state, the power of switching device in circuit is determined
Loss.As a result, by using the loss model collection of switching device, switching device power attenuation in circuit is calculated, not only
The calculating accuracy to switching device power loss is improved, also saves human resources, the user experience is improved.
To achieve the above object, the present invention also proposes a kind of computer readable storage medium.
The wherein computer readable storage medium, is stored thereon with computer program, real when which is executed by processor
Switching device power attenuation computational methods in circuit described in existing first aspect embodiment.Switching device power damages wherein in circuit
Consuming computational methods includes：The corresponding loss model collection of switching device in circuit is determined, wherein it includes logical that the loss model, which is concentrated,
State loss model, conduction loss model and turn-off power loss model；The simulation model for running the circuit is obtained and is opened in the circuit
Close current value and voltage value of the device in each state；According to current value, voltage of the switching device in each state
Value and the loss model collection, determine power attenuation of the switching device in the circuit.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discuss suitable
Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
Embodiments herein is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as the limit to the application
System, those skilled in the art can be changed above-described embodiment, change, replace and become within the scope of application
Type.
Claims (10)
1. switching device power attenuation computational methods in a kind of circuit, which is characterized in that including：
Determine the corresponding loss model collection of switching device in circuit, wherein the loss model concentration include on-state loss model,
Conduction loss model and turn-off power loss model；
The simulation model for running the circuit obtains current value and voltage of the switching device in each state in the circuit
Value；
According to current value, voltage value and the loss model collection of the switching device in each state, the switch is determined
Power attenuation of the device in the circuit.
2. the method as described in claim 1, which is characterized in that the corresponding loss model of switching device in the determining circuit
Collection, including：
Obtain the typical performance curve of the switching device；
Processing is fitted to the typical performance curve of the switching device, generates the loss model collection.
3. the method as described in claim 1, which is characterized in that the switching device is Metal-Oxide Semiconductor field-effect
Transistor；
The loss model concentration further includes that diode introspection restores loss model.
4. method as described in any one of claims 1-3, which is characterized in that switching device is each in the acquisition circuit
Current value when state and voltage value, including：
Obtain conduction voltage drop and conducting electric current of the switching device in on-state, in opening process both ends voltage value and electricity
Flow valuve, in turn off process both ends voltage and current values.
5. method as described in any one of claims 1-3, which is characterized in that the determination switching device is in the circuit
Power attenuation, including：
According to current value, voltage value and the loss model collection of the switching device in each state, the switch is determined
Loss value of the device in each switch periods；
According to the working frequency of the switching device and the loss value in each period, determine the switching device in the circuit
In power attenuation.
6. switching device power attenuation computing device in a kind of circuit, which is characterized in that including：
First determining module, for determining the corresponding loss model collection of switching device in circuit, wherein the loss model is concentrated
Including on-state loss model, conduction loss model and turn-off power loss model；
First acquisition module, the simulation model for running the circuit obtain in the circuit switching device in each state
When current value and voltage value；
Second determining module, for current value, voltage value and the loss mould according to the switching device in each state
Type collection determines power attenuation of the switching device in the circuit.
7. device as claimed in claim 6, which is characterized in that first determining module, including：
Obtain subelement, the typical performance curve for obtaining the switching device；
Subelement is generated, processing is fitted for the typical performance curve to the switching device, generates the loss model
Collection.
8. device as claimed in claim 6, which is characterized in that the switching device is Metal-Oxide Semiconductor field-effect
Transistor；
The loss model concentration further includes that diode introspection restores loss model.
9. a kind of electronic equipment, which is characterized in that on a memory and can be on a processor including memory, processor and storage
The computer program of operation is realized and is opened in circuit according to any one of claims 1 to 5 when the processor executes described program
Close device power loss computational methods.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that described program is handled
When device executes, switching device power attenuation computational methods in circuit as described in any one in claim 1-5 are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282486.0A CN108595777A (en) | 2018-04-02 | 2018-04-02 | Switching device power attenuation computational methods, device and equipment in circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282486.0A CN108595777A (en) | 2018-04-02 | 2018-04-02 | Switching device power attenuation computational methods, device and equipment in circuit |
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| Publication Number | Publication Date |
|---|---|
| CN108595777A true CN108595777A (en) | 2018-09-28 |
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