JP2023116966A - Equivalent model creation device, equivalent model creation support method, and equivalent model creation support program - Google Patents

Abstract

To provide an equivalent model creation device which can reduce a work load when generating an equivalent model circuit.SOLUTION: An equivalent model creation device comprises: a first waveform data acquisition unit which acquires first waveform data indicating an impedance for each frequency; a display data output unit which outputs display data indicating a first waveform based on the first waveform data; a target condition acquisition unit which acquires a target condition for determining a target impedance for each region of different frequency bands; a second waveform data acquisition unit which generates second waveform data indicating the target impedance for each frequency determined by using the target condition and the first waveform data; and a third waveform data generation unit which generates third waveform data indicating an impedance for each frequency in a model circuit constituted by an LCR component. The display data output unit outputs the display data indicating a second waveform based on the second waveform data and the display data indicating a third waveform based on the third waveform data.SELECTED DRAWING: Figure 1

Description

The technology disclosed herein relates to an equivalent model creation technology.

In the development stage of an integrated circuit, a person in charge of verification may perform various verifications such as PI (power integrity) verification using an equivalent circuit on the integrated circuit designed by the person in charge of design. In this case, for example, the person in charge of verification generates an equivalent circuit (equivalent model circuit) that models the integrated circuit with LCR components (L (coil), C (capacitor), R (resistor)). Specifically, the person in charge of verification receives actual measured values of the impedance of the circuit from the person in charge of design, and adjusts the LCR components in the model circuit so as to approximate the impedance characteristics based on the measured values to generate an equivalent model circuit.

By the way, Patent Document 1 discloses a circuit analysis apparatus that predicts mutual effects between network elements that constitute a circuit, generates a frequency response of the circuit, and graphically displays the frequency response. In the circuit analysis apparatus of Patent Document 1, a waveform of a so-called "correct frequency response" (Patent Document 1), which is close to the frequency response based on the actual measurement value, is displayed based on the circuit configuration.

JP-A-08-050152

However, conventionally, as the waveform of impedance characteristics based on measured values becomes more complex, the number of times the LCR components in the model circuit are adjusted tends to increase, and there is a problem that the workload in generating the equivalent model circuit becomes large. Ta.
Even if an attempt is made to use the above disclosure in the circuit analysis apparatus of Patent Document 1 to create an equivalent model circuit, it would only display a more complex waveform that is close to impedance characteristics based on actual measurements, and the above problems would still not be solved. Can not.

An object of the present disclosure is to solve the above-described problems, and to provide an equivalent model creation apparatus capable of reducing the workload when creating an equivalent model circuit.

An equivalent model creation device of the present disclosure includes a first waveform data acquisition unit that acquires first waveform data representing impedance for each frequency, and a display data output that outputs display data representing a first waveform based on the first waveform data. a target condition acquiring unit for acquiring target conditions for determining target impedance for each different frequency band region; and a target impedance for each frequency determined using the first waveform data and the target condition. and a third waveform data generator for generating third waveform data indicating impedance for each frequency in a model circuit composed of LCR parts. The display data output unit further outputs display data representing a second waveform based on the second waveform data and display data representing a third waveform based on the third waveform data.

According to the present disclosure, it is possible to reduce the workload when generating an equivalent model circuit.

1 is a diagram showing a configuration example and peripheral devices of an equivalent model creation device according to Embodiment 1; FIG. FIG. 2 is a diagram for explaining a first example of functions related to the equivalent model creation device of Embodiment 1; 6 is a diagram showing a configuration example of a third waveform data generation unit according to Embodiment 1; FIG. 2 is an image diagram of an equivalent model circuit used in the equivalent model creation device according to Embodiment 1; FIG. 4 is a diagram showing a configuration example of a display data output unit according to Embodiment 1; FIG. 4 is a flow chart showing an example of processing of the equivalent model creation device according to Embodiment 1; FIG. 5 is a diagram for explaining a second example of functions related to the equivalent model creation device of Embodiment 1; 8 is an enlarged view of waveforms in each region of FIG. 7; FIG. FIG. 10 is a diagram showing a configuration example and peripheral devices of an equivalent model creation device according to Embodiment 2; FIG. 10 is a diagram illustrating a configuration example of a third waveform data generation unit according to Embodiment 2; 9 is a flow chart showing an example of processing of the equivalent model creation device according to Embodiment 2; 1 is a diagram illustrating a first example of a hardware configuration for realizing functions according to the present disclosure; FIG. FIG. 5 is a diagram illustrating a second example of a hardware configuration for realizing functions according to the present disclosure;

Hereinafter, in order to describe the present disclosure in more detail, embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings.

Embodiment 1.
In Embodiment 1, a form is shown in which impedance characteristics can be generated using acquired impedance characteristics and target conditions for each frequency band.
FIG. 1 is a diagram showing a configuration example and peripheral devices of an equivalent model creating apparatus 1000 according to Embodiment 1. As shown in FIG.
Equivalent model creation device 1000 is communicably connected to input device 2000 and display device 3000 .
The equivalent model creation device 1000 generates target impedance characteristics (second waveform data) based on the impedance characteristics (first waveform data) acquired via the input device 2000 and target conditions for each frequency band.
The equivalent model generating apparatus 1000 also generates the impedance characteristics (third waveform data) of the model circuit based on the acquired model circuit information (model circuit information).
Equivalent model creation device 1000 outputs display data indicating impedance characteristics, display data indicating target impedance characteristics, or display data indicating impedance characteristics of a model circuit acquired via input device 2000 to display device 3000 .
Equivalent model generating apparatus 1000 also outputs the LCR value of the model circuit according to a command from the outside.

The internal configuration of the equivalent model creation device 1000 will be described.
Equivalent model creation apparatus 1000 shown in FIG. 1 includes waveform data output section 1100 , display data output section 1200 , and LCR value output section 1300 .

The waveform data output section 1100 outputs waveform data indicating impedance characteristics for each frequency.
Specifically, waveform data output section 1100 outputs at least three types of waveform data: first waveform data, second waveform data, and third waveform data.
The first waveform data indicates impedance characteristics acquired via the input device 2000, and specifically indicates impedance values for each frequency based on actual measurements. However, since it cannot be determined whether the first waveform data itself is data based on measured values, it is not intended to be limited to data based on measured values.
The second waveform data indicates target impedance characteristics based on the first waveform data and target conditions for each frequency band.
The third waveform data indicates impedance characteristics of the model circuit based on the model circuit information.
The model circuit information is information indicating the configuration of the model circuit configured with the LCR parts.
LCR components are passive components such as L (coil), C (capacitor), and R (resistor). LCR values indicate the values of these components.
The model circuit can be modified with various combinations of passive components.
Details of the waveform data output unit 1100 will be described later.

The display data output unit 1200 generates display data for the display device 3000 and outputs the display data to the display device 3000 .
Specifically, the display data output section 1200 generates display data using the output data of the waveform data output section 1100 or the output data of the LCR value output section 1300 and outputs the display data to the display device 3000 .
Details of the display data output unit 1200 will be described later.

The LCR value output unit 1300 outputs the LCR value in the model circuit used by the third waveform data generation unit 1140 according to an externally acquired command signal (LCR value output command signal).
Specifically, the LCR value output unit 1300 acquires a command signal (LCR value output command signal) commanding output of the LCR value from the outside via the input device 2000 . Upon acquiring the LCR value output command signal, LCR value output section 1300 acquires the LCR value in the model circuit from third waveform data generation section 1140 and outputs the LCR value to display data output section 1200 . The LCR value output unit 1300 may output the LCR value to another external device.

The waveform data output section 1100 includes a first waveform data acquisition section 1110 , a target condition acquisition section 1120 , a second waveform data generation section 1130 and a third waveform data generation section 1140 .

First waveform data acquisition section 1110 acquires first waveform data representing impedance for each frequency based on actual measurements.
The first waveform data acquisition unit 1110 acquires, via the input device 2000, first waveform data indicating impedance values for each frequency based on actual measurement values provided by the circuit design department, for example.

The target condition acquisition unit 1120 acquires target conditions for determining the target impedance for each different frequency band region.
Specifically, the target condition acquisition unit 1120 first acquires, via the input device 2000, a plurality of frequency band information indicating different frequency bands that divide the frequency band indicated by the first waveform data. The target condition acquisition unit 1120 then acquires a target condition for each frequency band indicated by the plurality of frequency band information.
The target condition acquired by the target condition acquisition unit 1120 is a combination of a plurality of different frequency band information and a target impedance value or a rate of increase or decrease based on the impedance value of the first waveform data for each of the frequency band information. Consists of
The frequency band information is, for example, information indicated by the frequency itself, or area identification information that identifies an area for each frequency band. The region for each frequency band is arbitrarily determined by the operator.
The rate of increase/decrease with respect to the impedance value of the first waveform data is indicated, for example, by using an increase rate with respect to the impedance value of the first waveform data, or a combination of an increase rate and a decrease rate (increase/decrease rate).
The target impedance value is indicated, for example, using a numerical value in units of Ω.
The target condition acquisition unit 1120 outputs target condition information in which the frequency band information and the target condition are combined.

Second waveform data generation section 1130 generates second waveform data indicating the target impedance for each frequency determined using the first waveform data and the target condition.
Specifically, second waveform data generating section 1130 acquires first waveform data from first waveform data acquiring section 1110 and acquires target condition information from target condition acquiring section 1120 .
The second waveform data generation unit 1130 calculates a target impedance value for each frequency using the impedance value for each frequency indicated by the first waveform data and the target condition for each frequency band indicated by the target condition information, Generate second waveform data.
The second waveform data generator 1130 calculates the target impedance value by, for example, adding the increase rate to the impedance value of the first waveform data.
Further, the second waveform data generation unit 1130 calculates the target impedance value by adding the increase rate to the impedance value of the first waveform data, and subtracts the decrease rate from the impedance value of the first waveform data to calculate the target impedance value. Calculate In this case, the second waveform data indicates the range of the target impedance value with the upper limit side second waveform data and the lower limit side second waveform data.
Further, the second waveform data generation unit 1130 calculates the upper limit side target impedance value by adding the increase rate to the impedance value of the first waveform data, for example, and calculates the first waveform in the region of the frequency band. The maximum impedance value of the data is determined as the target impedance value on the lower limit side. In this case, the second waveform data indicates the range of the target impedance value with the upper limit second waveform data and the lower limit second waveform data.

FIG. 2 is a diagram for explaining a first example of functions related to the equivalent model creation device 1000 of the first embodiment.
FIG. 2 shows a first waveform 5100, a second waveform 5300, and regions of each frequency band (A region 5210, B1 region 5220, B2 region 5230, C region) with the frequency on the horizontal axis and the impedance value on the vertical axis. 5240).
The first waveform data representing the first waveform 5100 is obtained by the first waveform data obtaining section 1110 .

The A region 5210 is considered to be greatly affected by the CHIP of the integrated circuit (see the CHIP part of the model circuit 4000 shown in FIG. 4) around the maximum value of the impedance value (the region with a plurality of peaks). It is a frequency band distinguished from a region.
The B1 region 5220 and the B2 region 5230 are considered to be greatly affected by the PCB (Printed Circuit Board) (see the PCB section 4100 of the model circuit 4000 shown in FIG. 4) and the VIA of the PCB. Obi.
The C region 5240 is a frequency band distinguished from other regions because it is considered that the resistance of the power supply of the integrated circuit has a large effect.
The frequency band information indicating A region 5210 , B1 region 5220 , B2 region 5230 , and C region 5240 is obtained by target condition obtaining section 1120 in equivalent model creation device 1000 .

Target conditions for each of the A region 5210, B1 region 5220, B2 region 5230, and C region 5240 are acquired by the target condition acquisition unit 1120. FIG.
The target condition shown in FIG. 2 is that the target condition of the A region 5210 is “+(a)%” of the maximum value of the impedance value in the first waveform 5100, and the target condition of the B1 region 5220 is the impedance value in the first waveform 5100. "+(b ₁ )%" of the B2 region 5230 is "+(b ₂ )%" of the impedance value in the first waveform 5100, and the target condition of the C region 5240 is "+(b 2 )%" of the impedance value in the first waveform 5100. +(c) %”.
The above (a), (b ₁ ), (b ₂ ), and (c) may be appropriately set according to the pattern of the first waveform 5100 .
The A area, B area (B1 area, B2 area), and C area may each be further divided into a plurality of areas and set. For example, the A region may be divided to set the A1 region and the A2 region, and the C region may be divided to set the C1 region and the C2 region.

FIG. 3 is a diagram showing a configuration example of the third waveform data generating section 1140 according to Embodiment 1. As shown in FIG.
The third waveform data generating section 1140 generates third waveform data indicating the impedance for each frequency in the model circuit composed of the LCR parts.
The third waveform data generation section 1140 shown in FIG. 3 includes a model circuit information acquisition section 1141 and an analysis section 1143 .

The model circuit information acquisition unit 1141 acquires model circuit information indicating a model circuit composed of LCR parts.
FIG. 4 is an image diagram of a model circuit 4000 used in the equivalent model creation device 1000 according to the first embodiment.
The model circuit 4000 is a circuit modeling an integrated circuit made of a printed wiring board on which a semiconductor package is mounted, for example, and includes a PCB section 4100 , a PKG section 4200 and a CHIP section 4300 .
The PCB section 4100 is, for example, a circuit section in which a PCB in an integrated circuit is modeled with LCR components. PCB portion 4100 shown in FIG. , 4150-n).
LCR components 4140 (4140-1, . . . , 4140-n) and LCR components 4150 (4150-1, . . . , 4150-n) constitute bypass capacitors. Specifically, the combination of LCR component 4140 and LCR component 4150 constitutes one bypass capacitor. In FIG. 4, n decoupling capacitors are set, from the decoupling capacitor consisting of LCR component 4140-1 and LCR component 4150-1 to the decoupling capacitor consisting of LCR component 4140-n and LCR component 4150-n. The number n of bypass capacitors can be changed.
The PKG section 4200 is, for example, a circuit section that models a semiconductor package in an integrated circuit, and includes an LCR component 4210 of the PKG section 4200 .
The CHIP section 4300 is a circuit section that models a semiconductor chip in an integrated circuit, for example, and includes an LCR component 4310 of the CHIP section 4300 .
The LCR value of each LCR component can be changed.
The number n of decoupling capacitors and the LCR value of each LCR component may be set or adjusted outside equivalent model creation device 1000, or adjusted inside equivalent model creation device 1000 according to the configuration of Embodiment 2 described later. may

The analysis unit 1143 uses the model circuit information acquired from the model circuit information acquisition unit 1141 to generate third waveform data representing the impedance value for each frequency in the model circuit indicated by the model circuit information.
Specifically, the analysis unit 1143 acquires model circuit information from the model circuit information acquisition unit 1141 . Next, the analysis unit 1143 analyzes the model circuit indicated by the model circuit information and generates third waveform data indicating the impedance value for each frequency in the model circuit indicated by the model circuit information. The analysis unit 1143 outputs the generated third waveform data.

Also, the analysis unit 1143 analyzes the model circuit indicated in the model circuit information and outputs the LCR values of the LCR components of the model circuit.
Specifically, when the LCR value output command signal is acquired by the LCR value output unit 1300 , the analysis unit 1143 analyzes the model circuit and outputs the LCR values of the LCR components of the model circuit to the LCR value output unit 1300 . do.

Details of the display data output unit 1200 will be described.
FIG. 5 is a diagram showing a configuration example of the display data output unit 1200 according to the first embodiment.
The display data output unit 1200 shown in FIG. is composed of

The first waveform image generator 1210 outputs display data representing a first waveform based on the first waveform data.
Specifically, first waveform image generation section 1210 acquires the first waveform data output from first waveform data acquisition section 1110 of waveform data output section 1100 . The first waveform image generator 1210 generates display data representing the first waveform using the first waveform data. First waveform image generator 1210 outputs display data representing the first waveform to display device 3000 .

The second waveform image generator 1220 outputs display data representing a second waveform based on the second waveform data.
Specifically, second waveform image generation section 1220 acquires the second waveform data output from second waveform data generation section 1130 of waveform data output section 1100 . The second waveform image generator 1220 generates display data representing the second waveform using the second waveform data. Second waveform image generator 1220 outputs display data representing the second waveform to display device 3000 .

The third waveform image generator 1230 outputs display data representing a third waveform based on the third waveform data.
Specifically, third waveform image generation section 1230 acquires the third waveform data output from third waveform data generation section 1140 of waveform data output section 1100 . The third waveform image generator 1230 generates display data representing the third waveform using the third waveform data. Third waveform image generator 1230 outputs display data representing the third waveform to display device 3000 .

The superimposed image generator 1240 uses at least two waveform data out of the first waveform data, the second waveform data, and the third waveform data to generate a display image in which at least two waveforms are superimposed.
The superimposed image generation unit 1240 uses the first waveform data and the second waveform data, for example, to generate a display image in which the first waveform indicated by the first waveform data and the second waveform indicated by the second waveform data are superimposed. to output This display image is used, for example, when the second waveform data generator 1130 generates the second waveform data and the operator compares the first waveform data and the second waveform data to confirm.
The superimposed image generation unit 1240 uses the second waveform data and the third waveform data, for example, to generate a display image in which the second waveform indicated by the second waveform data and the third waveform indicated by the third waveform data are superimposed. to output This display image is used, for example, when the third waveform data generation unit 1140 generates the third waveform data and the operator compares the second waveform data and the third waveform data for confirmation.
Superimposed image generating section 1240, for example, uses the first waveform data, the second waveform data, and the third waveform data to generate the first waveform indicated by the first waveform data and the second waveform indicated by the second waveform data. A display image in which the two waveforms and the third waveform indicated by the third waveform data are superimposed is output. This display image is used, for example, when the third waveform data generator 1140 generates the third waveform data and the operator compares and confirms the first waveform data, the second waveform data, and the third waveform data. be done.

The LCR value image generator 1250 uses the LCR values output by the LCR value output unit 1300 to output a display image showing the LCR values.
Specifically, the LCR value image generator 1250 acquires LCR values from the LCR value output unit 1300 . The LCR value image generator 1250 uses the LCR values to generate a display image showing the LCR values. LCR value image generator 1250 outputs a display image showing the LCR values to display device 3000 .

An input device 2000 shown in FIG. 1 is a device that allows an operator to input or select information to be used in the equivalent model creation device 1000 by operating it. Specifically, the input device 2000 is a mouse, keyboard, touch panel, or the like.
The input device 2000 may be operated by an operator to cause the equivalent model creation device 1000 to acquire information from a storage device (not shown).
The input device 2000 in the present disclosure accepts first waveform data indicating impedance for each frequency based on actual measurement values, target conditions for each different frequency band, model circuit information, and a command to output an LCR value, etc. Output to the equivalent model creation device 1000 .

A display device 3000 shown in FIG. 1 is a device that displays using display data output from the equivalent model creation device 1000 . Specifically, the display device 3000 is a display, a monitor, or the like.
The display device 3000 according to the present disclosure receives display data representing waveforms based on each waveform data and display data representing LCR values from the equivalent model creation device 1000, and displays them.

Although the input device 2000 and the display device 3000 shown in FIG. 1 are shown as separate devices, they may be an integrated input/output device. Specifically, it is a display with a touch panel, for example.

FIG. 6 is a flow chart showing an example of processing of the equivalent model creation device 1000 according to the first embodiment.
When equivalent model creation device 1000 starts processing, first, equivalent model creation device 1000 acquires first waveform data in step ST1000.
Specifically, the display data output unit 1200 in the equivalent model generation device 1000 outputs display data prompting the display device 3000 to input the first waveform data, for example. When the operator operates the input device 2000 in response to the display by the display device 3000 , the first waveform data acquisition section 1110 receives the first waveform data from the input device 2000 and outputs the first waveform data to the display data output section 1200 . Output. When display data output section 1200 receives the first waveform data, first waveform image generation section 1210 in display data output section 1200 generates a first waveform image using the first waveform data. Display data output section 1200 outputs the generated first waveform image to display device 3000 .

Equivalent model generating apparatus 1000 then acquires a target condition for each frequency band (step ST1010).
Specifically, the display data output unit 1200 in the equivalent model creation device 1000 outputs display data prompting the input of the target condition to the display device 3000, for example. When the operator operates the input device 2000 in response to the display by the display device 3000, the target condition acquisition unit 1120 obtains a plurality of frequencies representing different frequency bands for dividing the frequency band represented by the first waveform data. Band information is acquired via the input device 2000 . Next, the display data output unit 1200 outputs to the display device 3000, for example, display data prompting input of target conditions for each frequency band region indicated by the frequency band information. When the operator operates the input device 2000 in response to the display by the display device 3000, the target condition acquisition unit 1120 acquires target conditions for each frequency band indicated by the plurality of frequency band information. Target condition acquisition section 1120 outputs target condition information, which is a combination of frequency band information and target conditions, to second waveform data generation section 1130 for each frequency band.

Equivalent model generating apparatus 1000 then acquires second waveform data (step ST1020).
Specifically, second waveform data generating section 1130 acquires first waveform data from first waveform data acquiring section 1110 and acquires target condition information from target condition acquiring section 1120 . The second waveform data generation unit 1130 calculates a target impedance value for each frequency using the impedance value for each frequency indicated by the first waveform data and the target condition for each frequency band indicated by the target condition information, Generate second waveform data.

Equivalent model generating apparatus 1000 then outputs the second waveform data (step ST1030).
Specifically, second waveform data generation section 1130 in equivalent model generation device 1000 outputs the generated second waveform data to display data output section 1200 . When display data output section 1200 receives the second waveform data, second waveform image generation section 1220 in display data output section 1200 generates a second waveform image using the second waveform data. Display data output section 1200 outputs the generated second waveform image to display device 3000 .

Equivalent model generating apparatus 1000, upon starting the processing, executes the processing from step ST1040 to step ST1070 in parallel with the flow from step ST1000 to step ST1030.
Equivalent model generating apparatus 1000 acquires model circuit information in step ST1040.
Specifically, the display data output unit 1200 in the equivalent model generation device 1000 outputs display data prompting the input of model circuit information to the display device 3000, for example. When the operator operates the input device 2000 in response to the display by the display device 3000, the model circuit information acquisition unit 1141 in the third waveform data generation unit 1140 of the equivalent model generation device 1000 generates a model circuit composed of LCR parts. Get the model circuit information shown. The model circuit information acquisition unit 1141 outputs model circuit information to the analysis unit 1143 .

Equivalent model generating apparatus 1000 then analyzes the model circuit (step ST1050).
Specifically, the analysis unit 1143 in the third waveform data generation unit 1140 of the equivalent model generation device 1000 acquires the model circuit information output from the model circuit information acquisition unit 1141 . The analysis unit 1143 analyzes the configuration of the model circuit indicated in the model circuit information.

Equivalent model generating apparatus 1000 generates third waveform data (step ST1060).
Specifically, the analysis unit 1143 generates, as an analysis result, third waveform data indicating impedance values for each frequency in the model circuit indicated in the model circuit information.

Equivalent model generating apparatus 1000 outputs the third waveform data (step ST1070).
Specifically, analysis section 1143 outputs the third waveform data to display data output section 1200 . Third waveform image generation section 1230 of display data output section 1200 acquires the third waveform data output from third waveform data generation section 1140 of waveform data output section 1100 . The third waveform image generator 1230 generates display data representing the third waveform using the third waveform data. Third waveform image generator 1230 outputs display data representing the third waveform to display device 3000 .

After executing the process of step ST1030 and the process of step ST1070, equivalent model generating apparatus 1000 generates two or more images out of the first waveform image, the second waveform image, and the third waveform image. A superimposed image may be output to the display device 3000 .
In this case, specifically, the superimposed image generation unit 1240 in the display data output unit 1200 of the equivalent model generation device 1000 generates two or more of the first waveform image, the second waveform image, and the third waveform image. Generates an image in which images are superimposed.

Equivalent model generating apparatus 1000 proceeds to the process of step ST1080 after executing the process of step ST1030 and the process of step ST1070.

In step ST1080, equivalent model creation device 1000 determines whether "there is an LCR value output command".
Specifically, the display data output unit 1200 in the equivalent model creation device 1000 outputs to the display device 3000, for example, display data representing an image of a button for executing an LCR value output command. When the operator operates the input device 2000 while the button image is displayed on the display device 3000, the LCR value output unit 1300 receives the LCR value output command signal and determines that "there is an LCR value output command". The LCR value output unit 1300 determines that there is no "LCR value output command" when there is no operation for a predetermined constant time.

When equivalent model generating apparatus 1000 determines that "there is an LCR value output command" (step ST1080 "YES"), it outputs the LCR value (step ST1090).
Specifically, when the LCR value output unit 1300 in the equivalent model creation device 1000 receives the LCR value output command signal, it determines that “there is an LCR value output command”, and from the analysis unit 1143 of the third waveform data generation unit 1140 Each LCR value in the LCR component of the model circuit is acquired, and each LCR value is output to the display data output unit 1200 .
Note that the equivalent model generating apparatus 1000 may output the LCR value from the analysis section 1143 of the third waveform data generation section 1140 and output model circuit information indicating the model circuit.

If equivalent model generating apparatus 1000 determines that there is no "LCR value output command" (step ST1080 "NO"), or determines whether to end the process after executing step ST1090 (step ST1100).

When equivalent model generating apparatus 1000 determines not to end the process ("NO" in step ST1100), it proceeds to the process of step ST1040 and waits until new model circuit information is acquired, for example.

When equivalent model generating apparatus 1000 determines to end the process (step ST1100 "YES"), it ends the process.

Here, a second example of functions related to the equivalent model creation device 1000 will be described.
FIG. 7 is a diagram for explaining a second example of functions related to the equivalent model creation device 1000 of the first embodiment.
A second example is an example in which the second waveform data indicates the range of the target impedance value with the upper limit side second waveform data and the lower limit side second waveform data.
FIG. 7 shows a first waveform 6100, an upper limit side second waveform 6310, a lower limit side second waveform 6320, a third waveform 6400, and regions of each frequency band ( A1 area 6210, B1 area 6220, B2 area 6230, C1 area 6240, C2 area 6250).
FIG. 8 is an enlarged view of waveforms in each region of FIG.
The first waveform data representing the first waveform 6100 represents, for example, impedance characteristics based on actual measurements, and is acquired by the first waveform data acquiring section 1110 .
The upper limit side second waveform data indicating the upper limit side second waveform 6310 indicates the target impedance characteristic on the upper limit side of the range of impedance characteristics to be targeted, and is generated by the second waveform data generating section 1130 .
The lower limit side second waveform data indicating the lower limit side second waveform 6320 indicates the target impedance characteristic on the lower limit side of the target impedance characteristic range, and is generated by the second waveform data generating section 1130 .
The third waveform data representing the third waveform 6400 represents the impedance characteristics of the model circuit, and is generated by the third waveform data generator 1140. FIG.

The A1 region 6210 is considered to be greatly affected by the CHIP of the integrated circuit (see the CHIP part of the model circuit shown in FIG. 4) around the maximum value of the impedance value (the region with multiple peaks). It is a frequency band distinguished from
A1 area 6210 in FIGS. 7 and 8 is a frequency band area from 54 MHz to 130 MHz.

The B1 region 6220 and the B2 region 6230 are frequency bands distinguished from other regions because they are considered to be greatly affected by the PCB board (see the PCB portion 4100 of the model circuit shown in FIG. 4) and the VIA of the PCB board.
The B1 region 6220 in FIGS. 7 and 8 is a frequency band region from 10 MHz to 54 MHz.
A B2 region 6230 in FIGS. 7 and 8 is a frequency band region from 130 MHz to 1 GHz.

The C1 region 6240 and the C2 region 6250 are frequency bands distinguished from other regions because they are considered to be greatly affected by the resistance of the power supply of the integrated circuit.
A C1 region 6240 in FIGS. 7 and 8 is a frequency band region from 1 kHz to 100 kHz.
A C2 region 6250 in FIGS. 7 and 8 is a frequency band region from 100 kHz to 10 MHz.

The frequency band information indicating each of A1 area 6210, B1 area 6220, B2 area 6230, C1 area 6240, and C2 area 6250 is acquired by target condition acquiring section 1120 in equivalent model creating apparatus 1000. FIG.

Goal conditions for each of the A1 area 6210, B1 area 6220, B2 area 6230, C1 area 6240, and C2 area 6250 are acquired by the target condition acquisition unit 1120. FIG.
7 and 8, the upper limit side target condition is "+(a ₁ )%" of the maximum value of the impedance value in the first waveform 6100, and the lower limit side target condition is , is the same as the maximum value of the impedance value in the first waveform 6100 (increase rate “0%”).
7 and FIG. 8, the upper limit side target condition is "+(b ₁ )%" of the impedance value in the first waveform 6100, and the lower limit side target condition is the first is "-(b ₁ )%" of the impedance value in waveform 6100;
In the description, the target condition on the upper limit side and the target condition on the lower limit side are the same (b ₁ ), but they may be set to different values.
7 and ₈ , the target condition of the B2 region 6230 shown in FIG. 7 and FIG. is "-(b ₂ )%" of the impedance value in waveform 6100;
In the description, the target condition on the upper limit side and the target condition on the lower limit side are the same (b ₂ ), but they may be set to different values.
7 and 8, the upper limit side target condition is "+(c ₁ )%" of the impedance value in the first waveform 6100, and the lower limit side target condition is the first is "-(c ₁ )%" of the impedance value in waveform 6100;
In the description, the target condition on the upper limit side and the target condition on the lower limit side are the same (c ₁ ), but they may be set to different values.
The target conditions of the C2 area 6250 shown in FIGS. 7 and 8 are an impedance value of "50 mΩ" on the upper limit side and an impedance value of "0 Ω" on the lower limit side.
Note that (a ₁ ), (b ₁ ), (b ₂ ), and (c ₁ ) may be appropriately set according to the pattern of the first waveform 6100 .

According to the disclosure described above, even if the waveform of the impedance characteristic based on the measured value is complicated, it is possible to display the target impedance in which the waveform is simplified for each frequency band divided according to the waveform. In addition, it becomes easy to change the LCR value of the corresponding LCR component according to the region, and the workload for generating the equivalent model circuit can be reduced.

An equivalent model creation device according to the present disclosure includes a first waveform data acquisition unit that acquires first waveform data representing impedance for each frequency, and display data that outputs display data representing a first waveform based on the first waveform data. an output unit, a target condition acquisition unit for acquiring target conditions for determining target impedance for each different frequency band region, and a target for each frequency determined using the first waveform data and the target condition. a second waveform data generation unit that generates second waveform data representing impedance; and a third waveform data generation unit that generates third waveform data representing impedance for each frequency in a model circuit composed of LCR parts. Further, the display data output unit is configured to output display data representing a second waveform based on the second waveform data and display data representing a third waveform based on the third waveform data.
As a result, it is possible to reduce the workload when generating the equivalent model circuit.

An equivalent model creation support method according to the present disclosure includes a first waveform data acquisition step in which a first waveform data acquisition unit acquires first waveform data indicating impedance for each frequency, and a display data output unit acquires the first waveform A display data output step of outputting display data representing a first waveform based on data; and a target condition acquisition step of acquiring a target condition for determining a target impedance for each different frequency band region by the target condition acquisition unit. a second waveform data generation step of generating second waveform data indicating a target impedance for each frequency determined using the first waveform data and the target condition; and a third waveform a third waveform data generation step in which the data generation unit generates third waveform data indicating impedance for each frequency in a model circuit configured with LCR parts, and the display data output step further includes: Display data representing a second waveform based on two waveform data and display data representing a third waveform based on the third waveform data are output.
As a result, it is possible to reduce the workload when generating the equivalent model circuit.

An equivalent model creation support program according to the present disclosure comprises: a computer; a display data output unit for outputting; a target condition acquisition unit for acquiring target conditions for determining target impedance for each different frequency band region; A second waveform data generator for generating second waveform data indicating target impedance for each frequency; and a third waveform data generator for generating third waveform data indicating impedance for each frequency in a model circuit composed of LCR parts. and the display data output unit further outputs display data representing a second waveform based on the second waveform data and display data representing a third waveform based on the third waveform data. It was configured to operate as a creation device.
As a result, it is possible to reduce the workload when generating the equivalent model circuit.

In the equivalent model creation device of the present disclosure, the target condition acquired by the target condition acquisition unit includes a plurality of different frequency band information and an increase or decrease based on the impedance value of the first waveform data for each of the frequency band information. or a target impedance value.
As a result, it becomes possible to set more suitable target conditions for each frequency band region, and it is possible to further reduce the workload when generating the equivalent model circuit.
Further, by applying the above configuration to the equivalent model creation support method or the equivalent model creation support program, the equivalent model creation support method or the equivalent model creation support program has the same effects as those described above.

In the equivalent model creation device of the present disclosure, the display data output unit uses the second waveform data and the third waveform data to generate the second waveform and the third waveform data shown in the second waveform data. It is configured to output a display image on which the third waveform is superimposed.
As a result, it becomes easier to compare the target impedance characteristic and the impedance characteristic of the model circuit, and it is possible to further reduce the workload when generating the equivalent model circuit.
Further, by applying the above configuration to the equivalent model creation support method or the equivalent model creation support program, the equivalent model creation support method or the equivalent model creation support program has the same effects as those described above.

In the equivalent model creation device of the present disclosure, the display data output unit uses the first waveform data, the second waveform data, and the third waveform data to generate the first waveform shown in the first waveform data , and outputs a display image in which the second waveform indicated by the second waveform data and the third waveform indicated by the third waveform data are superimposed.
As a result, it becomes easier to compare the impedance characteristics based on the measured values, the target impedance characteristics, and the impedance characteristics of the model circuit.
Further, by applying the above configuration to the equivalent model creation support method or the equivalent model creation support program, the equivalent model creation support method or the equivalent model creation support program has the same effects as those described above.

The equivalent model creation device of the present disclosure further includes an LCR value output unit that outputs an LCR value in the model circuit used by the third waveform data generation unit according to an externally acquired command signal. .
As a result, it becomes easier to obtain the LCR value of the equivalent model circuit after adjustment of the model circuit.
Further, by applying the above configuration to the equivalent model creation support method or the equivalent model creation support program, the equivalent model creation support method or the equivalent model creation support program has the same effects as those described above.

Embodiment 2.
Embodiment 2 is a mode including a configuration that enables adjustment of LCR components in a model circuit in an equivalent model creation device.
In the description of the second embodiment, the description of the configuration described in the first embodiment may be omitted as appropriate.

FIG. 9 is a diagram showing a configuration example and peripheral devices of an equivalent model creating apparatus 1000A according to Embodiment 2. As shown in FIG.
Equivalent model generating apparatus 1000A shown in FIG. 9 has a configuration different from that of equivalent model generating apparatus 1000 shown in FIG.
Since the input device 2000 and the display device 3000 are the same as those in FIG. 1, their description is omitted.

The internal configuration of the equivalent model creation device 1000A will be described.
Equivalent model creation apparatus 1000A shown in FIG. 9 includes waveform data output section 1100A, display data output section 1200, and LCR value output section 1300.

Waveform data output section 1100A includes first waveform data acquisition section 1110, target condition acquisition section 1120, second waveform data generation section 1130, and third waveform data generation section 1140A.

FIG. 10 is a diagram showing a configuration example of the third waveform data generator 1140A according to the second embodiment.
The third waveform data generating section 1140A generates third waveform data indicating impedance for each frequency in a model circuit composed of LCR parts.
Further, the third waveform data generating section 1140A receives an editing operation on the model circuit, and generates third waveform data indicating the impedance for each frequency in the edited model circuit.
The third waveform data generation section 1140A shown in FIG. 3 includes a model circuit information acquisition section 1141, a model circuit editing section 1142, and an analysis section 1143. FIG.

The model circuit information acquisition unit 1141 acquires model circuit information indicating a model circuit composed of LCR parts.
Since the model circuit information is the same as the model circuit information described in the first embodiment, detailed description thereof will be omitted.

The model circuit editor 1142 edits the model circuit indicated by the model circuit information.
Specifically, the model circuit editing unit 1142 edits the model circuit information according to the operation information based on the model circuit information output by the model circuit information acquisition unit 1141 and the operation information acquired via the input device 2000. do. At this time, as the model circuit information, information such as the number n of decoupling capacitors and the LCR value of each LCR component in the model circuit is edited.
In editing the model circuit, when editing the model circuit information while comparing the second waveform data and the third waveform data, for example, area A in FIG. 2 (or area A1 in FIGS. 7 and 8) region), it is considered that the impedance value of the model circuit in region A changes by adjusting the LCR value of the CHIP part of the model circuit shown in FIG. Similarly, for example, if the difference is large in the B1 or B2 region of FIG. , the impedance value of the model circuit in the B1 region or the B2 region is considered to change. Similarly, for example, when the difference is large in region C of FIG. 2, it is considered that the impedance value of the model circuit in region C changes by adjusting the LCR value in LCR component 4120 of power supply 4110 .

The analysis unit 1143 uses the model circuit information acquired from the model circuit information acquisition unit 1141 or the model circuit editing unit 1142 to generate third waveform data representing the impedance value for each frequency in the model circuit indicated by the model circuit information. do.
Specifically, the analysis unit 1143 acquires model circuit information from the model circuit information acquisition unit 1141 or the model circuit editing unit 1142 . Next, the analysis unit 1143 analyzes the model circuit indicated by the model circuit information and generates third waveform data indicating the impedance value for each frequency in the model circuit indicated by the model circuit information. The analysis unit 1143 outputs the generated third waveform data.

Further, the analysis unit 1143 analyzes the model circuit indicated in the model circuit information, and outputs the LCR values of the LCR components of the model circuit and the model circuit information indicating the model circuit used for the analysis.
Specifically, when the LCR value output command signal is acquired by the LCR value output unit 1300, the analysis unit 1143 analyzes the model circuit indicated in the model circuit information, and calculates each LCR value, Then, model circuit information indicating the model circuit used for the analysis is obtained. Analysis section 1143 outputs the LCR value to LCR value output section 1300 . The analysis unit 1143 also outputs model circuit information to the display data output unit 1200 .

An example of processing of the equivalent model creation device 1000A according to the second embodiment will be described.
FIG. 11 is a flow chart showing an example of processing of the equivalent model creation device 1000A according to the second embodiment.
The processing shown in the flowchart of FIG. 11 differs from the flowchart of FIG. 6 in that the processing of step ST2110 is added.
The processing from step ST2000 to step ST2100 shown in the flowchart of FIG. 11 respectively corresponds to the processing from step ST1000 to step ST1100 shown in the flowchart of FIG. 6, so detailed description thereof will be omitted here.

Equivalent model creation apparatus 1000A makes a determination in step ST2100 in the same manner as in step ST1100 shown in FIG. 6, and if it determines not to end processing (step ST2100 "NO"), it executes model circuit editing processing (step ST2110). do.
Specifically, display data output unit 1200 of equivalent model creation device 1000A generates display data, which is an image for model circuit editing, and outputs the generated display data to display device 3000 . When the operator operates the input device 2000 in response to the display of the model circuit editing image on the display device 3000 , the model circuit editing unit 1142 acquires operation information via the input device 2000 . Based on the model circuit information output by the model circuit information acquisition unit 1141 and the operation information acquired via the input device 2000, the model circuit editing unit 1142 calculates the number n of decoupling capacitors in the model circuit information, Edit information such as LCR values of LCR parts. The model circuit editing unit 1142 outputs the edited model circuit information to the analysis unit 1143 .

After executing the process of step ST2110, equivalent model generating apparatus 1000A proceeds to the process of step ST2050.
Equivalent model creation device 1000A analyzes the model circuit in the process of step ST2050.
Specifically, analysis section 1143 in third waveform data generation section 1140A of equivalent model creation device 1000A acquires model circuit information output from model circuit editing section 1142 . The analysis unit 1143 analyzes the configuration of the model circuit indicated in the model circuit information.

After executing the process of step ST2050, equivalent model creation apparatus 1000A shifts to and executes the process of step ST2060. Since the processing after the processing of step ST2060 is the same as the content already explained, the explanation is omitted.

According to the disclosure described above, it becomes easy to change the LCR value in the corresponding LCR component according to the region while comparing the waveforms for each region, thereby reducing the workload when generating the equivalent model circuit. will be able to

In the equivalent model creation device of the present disclosure, the third waveform data generation unit includes a model circuit information acquisition unit that acquires model circuit information indicating a model circuit, and a model circuit that is shown in the model circuit information based on operation information. Using the equivalent model editing unit to be edited and the model circuit information acquired from the model circuit information acquiring unit or the equivalent model editing unit, a third waveform representing the impedance value for each frequency in the model circuit indicated by the model circuit information. and an analysis unit that generates data.
This makes it easy to change the LCR value of the LCR component corresponding to the region while comparing the waveforms for each region, thereby reducing the workload when generating the equivalent model circuit. It has the effect of becoming
Further, by applying the above configuration to the equivalent model creation support method or the equivalent model creation support program, the equivalent model creation support method or the equivalent model creation support program has the same effects as those described above.

Here, a hardware configuration that implements the functions of the equivalent model creation apparatuses 1000 and 1000A according to the present disclosure will be described.
FIG. 12 is a diagram illustrating a first example of a hardware configuration for realizing functions according to the present disclosure.
FIG. 13 is a diagram illustrating a second example of a hardware configuration for realizing functions according to the present disclosure.
Equivalent model creation devices 1000 and 1000A of the present disclosure are implemented by hardware as shown in FIG. 12 or 13 .

Equivalent model generating devices 1000 and 1000A are composed of a processor 10001 and a memory 10002, as shown in FIG.
A processor 10001 and a memory 10002 are installed in a computer, for example.
In the memory 10002, the computer includes waveform data output units 1100 and 1100A, a first waveform data acquisition unit 1110, a target condition acquisition unit 1120, a second waveform data generation unit 1130, a third waveform data generation unit 1140 and 1140A, a model Circuit information acquisition unit 1141, model circuit editing unit 1142, analysis unit 1143, display data output unit 1200, first waveform image generation unit 1210, second waveform image generation unit 1220, third waveform image generation unit 1230, superimposed image generation unit 1240, an LCR value image generation unit 1250, an LCR value output unit 1300, and a program for functioning as a control unit (not shown) are stored. A program stored in the memory 10002 is read out and executed by the processor 10001, whereby waveform data output units 1100 and 1100A, a first waveform data acquisition unit 1110, a target condition acquisition unit 1120, a second waveform data generation unit 1130, a third Waveform data generation units 1140 and 1140A, model circuit information acquisition unit 1141, model circuit editing unit 1142, analysis unit 1143, display data output unit 1200, first waveform image generation unit 1210, second waveform image generation unit 1220, third waveform Functions of an image generator 1230, a superimposed image generator 1240, an LCR value image generator 1250, an LCR value output unit 1300, and a control unit (not shown) are implemented.
A storage unit (not shown) is implemented by the memory 10002 or another memory (not shown).
The processor 10001 uses, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a microprocessor, a microcontroller, or a DSP (Digital Signal Processor).
The memory 10002 is a nonvolatile memory such as RAM (Random Access Memory), ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable Read Only Memory), or flash memory. volatile or volatile semiconductor memory Alternatively, it may be a magnetic disk such as a hard disk or flexible disk, an optical disk such as a CD (Compact Disc) or a DVD (Digital Versatile Disc), or a magneto-optical disc.
The processor 10001 and the memory 10002 are connected in such a way that they can transmit data to each other. Also, the processor 10001 and the memory 10002 are connected via an input/output interface 10003 so as to be able to transmit data to and from other hardware.

Alternatively, waveform data output units 1100 and 1100A, first waveform data acquisition unit 1110, target condition acquisition unit 1120, second waveform data generation unit 1130, third waveform data generation units 1140 and 1140A, model circuit information acquisition unit 1141, model Circuit editing unit 1142, analysis unit 1143, display data output unit 1200, first waveform image generation unit 1210, second waveform image generation unit 1220, third waveform image generation unit 1230, superimposed image generation unit 1240, LCR value image generation unit The functions of 1250, LCR value output section 1300, and control section (not shown) may be implemented by a dedicated processing circuit 10004 as shown in FIG.
The processing circuit 10004 is, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field-Programmable Gate Array), an SoC. (System-on-a-Chip) or system LSI (Large-Scale Integration).
A storage unit (not shown) is implemented by the memory 10005 or another memory (not shown).
The memory 10005 is a nonvolatile memory such as RAM (Random Access Memory), ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable Read Only Memory), or flash memory. volatile or volatile semiconductor memory Alternatively, it may be a magnetic disk such as a hard disk or flexible disk, an optical disk such as a CD (Compact Disc) or a DVD (Digital Versatile Disc), or a magneto-optical disc.
Processing circuit 10004 and memory 10005 are connected in such a manner that data can be transmitted between them. Also, the processing circuit 10004 and the memory 10005 are connected via an input/output interface 10006 so as to be able to transmit data to and from other hardware.
Waveform data output units 1100 and 1100A, first waveform data acquisition unit 1110, target condition acquisition unit 1120, second waveform data generation unit 1130, third waveform data generation units 1140 and 1140A, model circuit information acquisition unit 1141, model Circuit editing unit 1142, analysis unit 1143, display data output unit 1200, first waveform image generation unit 1210, second waveform image generation unit 1220, third waveform image generation unit 1230, superimposed image generation unit 1240, LCR value image generation unit The functions of 1250, LCR value output unit 1300, and control unit (not shown) may be realized by separate processing circuits, or may be collectively realized by a processing circuit.

Alternatively, waveform data output units 1100 and 1100A, first waveform data acquisition unit 1110, target condition acquisition unit 1120, second waveform data generation unit 1130, third waveform data generation units 1140 and 1140A, model circuit information acquisition unit 1141, model Circuit editing unit 1142, analysis unit 1143, display data output unit 1200, first waveform image generation unit 1210, second waveform image generation unit 1220, third waveform image generation unit 1230, superimposed image generation unit 1240, LCR value image generation unit 1250, the LCR value output unit 1300, and the control unit (not shown) may be realized by the processor 10001 and the memory 10002, and the rest of the functions may be realized by the processing circuit 10004. .

It should be noted that the present disclosure allows free combination of each embodiment, modification of any component of each embodiment, or omission of any component of each embodiment within the scope of the invention. .

1000,1000A Equivalent model creation device 1100,1100A Waveform data output unit 1110 First waveform data acquisition unit 1120 Target condition acquisition unit 1130 Second waveform data generation unit 1140,1140A Third waveform data generation unit 1141 Model circuit information acquisition unit 1142 model circuit editing unit 1143 analysis unit 1200 display data output unit 1210 first waveform image generation unit 1220 second waveform image generation unit 1230 third waveform image generation unit 1240 superimposed image generation unit , 1250 LCR value image generator, 1300 LCR value output unit, 2000 input device, 3000 display device, 4000 model circuit, 4100 PCB unit, 4110 power supply, 4120 LCR parts, 4130 LCR parts, 4140 (4140-1, ... , 4140-n) LCR parts, 4150 (4150-1, . 5220 B1 area, 5230 B2 area, 5240 C area, 5300 Second waveform, 6100 First waveform, 6210 A1 area, 6220 B1 area, 6230 B2 area, 6240 C1 area, 6250 C2 area, 6310 Upper limit side second waveform, 6320 Lower limit side second waveform 6400 Third waveform 10001 Processor 10002 Memory 10003 Input/output interface 10004 Processing circuit 10005 Memory 10006 Input/output interface.

Claims (8)

a first waveform data acquisition unit that acquires first waveform data indicating impedance for each frequency;
a display data output unit that outputs display data representing a first waveform based on the first waveform data;
a target condition acquisition unit that acquires a target condition for determining a target impedance for each different frequency band region;
a second waveform data generation unit that generates second waveform data indicating a target impedance for each frequency determined using the first waveform data and the target condition;
a third waveform data generating unit that generates third waveform data indicating impedance for each frequency in a model circuit composed of LCR parts;
with
The display data output unit further outputs display data representing a second waveform based on the second waveform data and display data representing a third waveform based on the third waveform data.
Equivalent model generator. The third waveform data generation unit
a model circuit information acquisition unit that acquires model circuit information indicating a model circuit;
an equivalent model editing unit that edits the model circuit indicated in the model circuit information based on the operation information;
an analysis unit that uses the model circuit information acquired from the model circuit information acquiring unit or the equivalent model editing unit to generate third waveform data representing an impedance value for each frequency in the model circuit indicated in the model circuit information;
comprising
Equivalent model creation device according to claim 1. The target condition acquired by the target condition acquisition unit includes a plurality of different frequency band information and a rate of increase or decrease based on the impedance value of the first waveform data or a target impedance value for each of the frequency band information. Composed of a combination of
3. The equivalent model creation device according to claim 1 or 2. The display data output unit
Using the second waveform data and the third waveform data, outputting a display image in which the second waveform indicated by the second waveform data and the third waveform indicated by the third waveform data are superimposed;
4. The equivalent model creation device according to any one of claims 1 to 3. The display data output unit
Using the first waveform data, the second waveform data, and the third waveform data, the first waveform indicated by the first waveform data, the second waveform indicated by the second waveform data, and the outputting a display image superimposed with the third waveform indicated by the third waveform data;
5. The equivalent model creation device according to any one of claims 1 to 4. an LCR value output unit that outputs an LCR value in the model circuit used by the third waveform data generation unit according to an externally acquired command signal;
6. The equivalent model creation device according to any one of claims 1 to 5, further comprising: a first waveform data obtaining step in which the first waveform data obtaining unit obtains first waveform data indicating impedance for each frequency;
a display data output step in which a display data output unit outputs display data representing a first waveform based on the first waveform data;
a target condition acquisition step in which the target condition acquisition unit acquires target conditions for determining target impedance for each different frequency band region;
a second waveform data generation step in which a second waveform data generation unit generates second waveform data indicating a target impedance for each frequency determined using the first waveform data and the target condition;
a third waveform data generation step in which the third waveform data generation unit generates third waveform data indicating impedance for each frequency in a model circuit configured with LCR parts;
with
The display data output step further outputs display data representing a second waveform based on the second waveform data and display data representing a third waveform based on the third waveform data.
Equivalent model creation support method. the computer,
a first waveform data acquisition unit that acquires first waveform data indicating impedance for each frequency;
a display data output unit that outputs display data representing a first waveform based on the first waveform data;
a target condition acquisition unit that acquires a target condition for determining a target impedance for each different frequency band region;
a second waveform data generation unit that generates second waveform data indicating a target impedance for each frequency determined using the first waveform data and the target condition;
a third waveform data generating unit that generates third waveform data indicating impedance for each frequency in a model circuit composed of LCR parts;
with
The display data output unit further outputs display data representing a second waveform based on the second waveform data and display data representing a third waveform based on the third waveform data.
equivalent model creation device,
An equivalent model creation support program characterized by operating as

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