ansoft electronic design automation - cad-it aac/slides/ansoft_desmond.pdf · ansoft electronic...

© 2008 Ansoft, LLC All rights reserved. Ansoft, LLC Proprietary

Ansoft Electronic Design

Automation

Desmond Tan

Technical Manager

ANSOFT, LLC.


Ansoft Products And Technology

�Ansoft provides state-of-the-art electronic design solution for engineers to face the design challenge in the next generation products and applications from DC to Daylight.

�The products combine the power of software automation with the intuitive engineering know-

how of the designer, so they can auto-interactively evaluate, design and optimize high-performance with all stream electronic design ranging from signal and power integrity, RF/microwave and communication system, and electromechanical system.


Markets

RF & Microwave

IC Design & VerificationSignal & Power Integrity

FEA

sourceA1

sourceA2

sourceB1

sourceB2

sourceC1

sourceC2

Magnet01

Magnet02

Name Value

FEA1.FEA_STEPS

SIMPARAM1.RunTime [s] 26.41k

SIMPARAM1.TotalIterations 34.51k

SIMPARAM1.TotalSteps 6.00k

ω+

ICA:

+

ΦGAIN

CONST

CONST

EQUBL

EQUBL

EQUBL

1500 rpm

LL:=922u

RA:=2.991

ANGRAD

57.3

-60+PWM_PER

-30+PWM_PER

QS1

QS2

QS3

VAL[0] := mod( INPUT[0] ,INPUT[1] )

PWM_T:=60

I_TARG:=9

I_HYST:=0.2

Q1

Q2

Q3 Q5

Q4 Q6

400 V

THRES := PWM_T

EQUBL

CONST

QS4

-90+PWM_PER

EQUBL

CONST

QS5

-120+PWM_PER

EQUBL

CONST

QS6

-150+PWM_PER

RA Ohm LL H

LDUM:=10m

0

8.50

5.00

0 30.00m20.00m

Q1.CTRL + 7.50

Q2.CTRL + 6.00

Q3.CTRL + 4.50

Q4.CTRL + 3.00

Q5.CTRL + 1.50

Q6.CTRL

-10.30

10.00

0

0 30.00m20.00m

LA.I [A]

LB.I [A]

LC.I [A]PWM_PER:=180

INPUT[1] := PWM_PER

INPUT := -LB.I

LC.I

-LA.I

LB.I

-LC.I

LA.I

THRES1 := I_TARG - I_HYST

THRES2 := I_TARG + I_HYSTVAL1 := 1

VAL2 := 0Y0 := 1

-14.50

7.80

0

0 30.00m20.00m

Torque Output

-30.00k

302.00k

200.00k

0 30.00m20.00m

FEA Outputs

FEA1.WIRELOSS

FEA1.CORELOSS

FEA1.IsourceA

FEA1.VsourceA

FEA1.EIsourceA

FEA1.FLUXsourceA

FEA1.IsourceB

FEA1.VsourceB

FEA1.EIsourceB

FEA1.FLUXsourceB

FEA1.IsourceC

FEA1.VsourceC

FEA1.EIsourceC

FEA1.FLUXsourceC

FEA1.PHI

FEA1.OMEGA

0

8.50

5.00

0 30.00m20.00m

QS1.VAL + 7.50

QS2.VAL + 6.00

QS3.VAL + 4.50

QS4.VAL + 3.00

QS5.VAL + 1.50

QS6.VAL

Electromechanical Systems


Maxwell’s Equation

Electrical engineering is largely derived from Maxwell’s equations

∇×E=−∂B

∂t

∇×H=J+∂D

∂t

∇• D=ρ

∇ B=0•


MARGINFOR

ERROR

Competition

Cost Constraints

Lawsuits/Warranty

Product Innovation

Customer Expectations

Energy Availability

Time to Market

Product Life Cycle

Skilled Labor

Increasing Demands on Engineering


Traditional EDA Shortcomings

Traditional EDA tools are based on circuit theory

Circuit theory is

limited to

components that are

•Relatively large

•Switching slowly

•Isolated from

others


Real Lofe


Physics-Based Modeling

Frequency-dependent,

full-wave effects

described via

scattering parameters

0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 40.00Freq [GHz]

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

Y1

Ansoft Corporation MHC0S-params

Curve Info

dB(St(1a,1a))20GHz : DC_20GHz

dB(St(2a,1a))20GHz : DC_20GHz

0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 40.00Freq [GHz]

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

L_n

h

0.00

5.00

10.00

15.00

20.00

25.00

30.00

Q

Ansoft Corporation MHC0Inductance, Q factor

Curve Info

L_nh20GHz : DC_20GHz

Q20GHz : DC_20GHz


Automatic Adaptive Meshing


The Right Answer – Automatically

Measured


Ansoft EM Market Focus

�Signal Integrity / Power Integrity / EMI

�High Frequency Applications – RF / Microwave /

Communication System

�Electromechanical System


Wireless & Wired Communication

Integrated RF/Analog/Digital


Wired CommunicationFast Data Rates, More Loss, Smaller Signal Levels

Reference Maxim Note HFDN-27.0 (Rev. 0, 09/03)

Tx +

-

+

-

Rcvpath +

-

+

-

Clean, open, logical 1 & 0 at launch from transmitter

Smeared edges at end of long interconnect.

Logical 1 & 0 can be hard to distinguish at end of long interconnects; (this is often called a “closed eye”)

Fast, sharp, edges at transmitter launch

Small differences inlevels being measured


High Performance Signal Integrity / Power

Integrity / EMI

+

-

+

-

Via Via Via

MS SL SLPackage PackageConnectorBackplane Daughter Card

FB-DIMM

Trend: Slower parallel buses replaced with multiple

Gigabit-speed, serial buses (PCI Express, Serial ATA,

FBDimm)

Designers must consider effects of the entire channel, from the IC, through the package, onto the PCB including all of the connectors

Courtesy of Intel Corporation


Ansoft Signal Integrity / Power Integrity / EMI SolutionAnsoft Signal Integrity / Power Integrity / EMI SolutionAnsoft Signal Integrity / Power Integrity / EMI SolutionAnsoft Signal Integrity / Power Integrity / EMI Solution

2D Extractor

RLGC and Zo parameter extraction for T-lines

SPICE/IBIS/W-element model creation

Q3D Extractor3D Geometry Quasi-static EM analysis

RLC parameter extraction

SPICE/IBIS model creation (Hspice, Spectra…)

HFSS3D Geometry Full-Wave EM analysis

SYZ parameter extraction, propagation constant

SYZ parameters, Port Zo, Fields

EXTRACTION

SIwavePCB/BGA Full-Wave solver for SI/PI analysis

SYZ parameter extraction, Resonances, SSN/SSO

Full-Wave Spice model creation

TPA (Turbo Package Analyzer)BGA package Quasi static EM analysis

RLC parameter extractor

Spice/IBIS model creation

Full Wave SpiceHigh Frequency dependent SPICE models

HSPICE, PSPICE, Spectre RF, Matlab

SIMULATION

Nexxim

High capacity, high speed circuit simulation engine

Transistor level Tx/Rx models included

Native support for HSpice and Spectre

Time and Frequency domain

SPICE/ Measured Data import

Design management tool

System Level Simulator

Planar EM analysis

Cascading models from different Ansoft tools

Designer SI

AnsoftLinks

3rd part CAD interface

PCB CAD : Cadence, Zuken, Mentor, Synopsys

MCAD geometry: 3D CAD, IGES, STEP, Pro/E

Optimetrics

Automatic Optimization

Parametric analysis

Sensitivity Analysis

Statistical Analysis

DESIGN AUTOMATION

DSO (Distributed Solve Option)

Distribute solving of large parametric and

sweep projects across network of computers

Linear Speed Increase with number of computers

Applicable to Q3D and HFSS

Fully Integrated Single EM/Circuit Solution


3D Parasitic Extraction


Circuit & System Simulation

out

pullup

pulldow n

logic_ in

enableout_of _in

out

POWER

GND

logic _in

enableout_of _in

pullup

pulldow n

OUT

PULLUP

PULLDOWN

logic_in

enable

OU T

pu llup

p u l ldo w n

lo g ic_ in

Differential PRBSMicrostrip Circuit

Component

Dynamic Link to

HFSS Via Model

Stripline Circuit

Component

Dynamic Link to

HFSS Stripline

Transition Model

SMA Connector

S-Parameters

BGA Package

S-Parameters


Design Automation and Integration

AnsoftLinks



Fully setup, ready to solve HFSS and Q3D

package models


0

10000

20000

30000

40000

50000

60000

70000

Distributed Solve One Computer

Time (seconds)

Time (seconds)

Time (seconds)

Time (seconds)

10x Speed10x Speed--upup


Distribute solving of large parametric and sweep projects across network of computers



Optimetrics


Parametric analysis




00

0 0

0

0 0

0

0

0

0

ag

nd

avd

d

in

inb

nbias

out

outb

vtune

CDR

ag

nd

avd

d

clk

clkbin

inb out

outb

vco

vco

b

net0164

ag

nd

avd

d

v_irefn

v_irefp

50

R10

50

R13

50

R1

6

50

R1

9

E20

GAIN=1

E26

GAIN=-1

V27

DC=0.782

V31

DC=1.2

V34

DC=0.782

V40

DC=0.6

V58

V1=-0.2V2=0.2TRF=1/data_rat/5PW=4/data_rat/5TONE=0

sig1_in

sig2_in

Input_ref

sig1_out

sig2_out

Output_ref

1

2

W65

eq_out

eq_outb

clk_o

clk_ob

cdr_data_o

cdr_data_ob

avdd

avdd

data_in ch_outbdatab

data ch_out

vco

vcob

vco_tune

Virtual Measurement Environment

0.00 50.00 100.00 150.00 200.00 250.00 300.00 350.00 400.00 450.00 500.00Time [ns ]

580.00

585.00

590.00

595.00

600.00

605.00

610.00

615.00

V(v

co

_tu

ne

) [m

V]

Ansoft Corporation Top_15cmTRLXY Plot 7

Curve Info

V(vco_tune)

Transient

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00Spectrum [GHz]

-140.00

-120.00

-100.00

-80.00

-60.00

-40.00

-20.00

0.00

dB

(V(v

co

)-V

(vco

b))

Ansoft Corporation Top_15cmTRLXY Plot 8

m1 Curve Info

dB(V(vco)-V(vcob))

Trans ient

Name X Y

m1 40.0000 -6.9054

VCO tuning voltage

(locking & settling transient)

Spectrum of VCO output(Clock output)

Eye & Jitter of

VCO Output (=Clock Output)

Channel Output CT Equalizer Output CDR Data Output


Signal Integrity / Power Integrity / EMI

Full (PCIe, HDMI, etc.) Channel to be Verified


Driver settings

10 M Measurement

SIwave

Pi Filter Added at IC output

to Reduce Skew

Original Driver Filtered Driver

EMI is now

sufficiently

suppressed

Signal Integrity / Power Integrity / EMI


SIMULATION

Nexxim

High capacity, high speed circuit simulation engine

Transistor level Tx/Rx models included

Native support for HSpice and Spectre

Time and Frequency domain

SPICE/ Measured Data import

Design management tool

System Level Simulator

Planar EM analysis

Cascading models from different Ansoft tools

Designer

Ansoft High Frequency Solution

HFSS3D Geometry Full-Wave EM analysis

SYZ parameter extraction, propagation constant

SYZ parameters, Port Zo, Fields

EXTRACTION

AnsoftLinks




Optimetrics


Parametric analysis



DESIGN AUTOMATION


Distribute solving of large parametric and

sweep projects across network of computers



Fully Integrated Single EM/Circuit Solution


Large Complex Solution – Aircraft Model

High Performance High Frequency Applications



Antenna System Solution


Bio-Medical Solution



RF And Microwave


EMI EMC Solution



Conclusions

RF & Microwave

IC Design & VerificationSignal & Power Integrity

FEA

sourceA1

sourceA2

sourceB1

sourceB2

sourceC1

sourceC2

Magnet01

Magnet02

Name Value

FEA1.FEA_STEPS

SIMPARAM1.RunTime [s] 26.41k

SIMPARAM1.TotalIterations 34.51k

SIMPARAM1.TotalSteps 6.00k

ω+

ICA:

+

ΦGAIN

CONST

CONST

EQUBL

EQUBL

EQUBL

1500 rpm

LL:=922u

RA:=2.991

ANGRAD

57.3

-60+PWM_PER

-30+PWM_PER

QS1

QS2

QS3

VAL[0] := mod( INPUT[0] ,INPUT[1] )

PWM_T:=60

I_TARG:=9

I_HYST:=0.2

Q1

Q2

Q3 Q5

Q4 Q6

400 V

THRES := PWM_T

EQUBL

CONST

QS4

-90+PWM_PER

EQUBL

CONST

QS5

-120+PWM_PER

EQUBL

CONST

QS6

-150+PWM_PER

RA Ohm LL H

LDUM:=10m

0

8.50

5.00

0 30.00m20.00m

Q1.CTRL + 7.50

Q2.CTRL + 6.00

Q3.CTRL + 4.50

Q4.CTRL + 3.00

Q5.CTRL + 1.50

Q6.CTRL

-10.30

10.00

0

0 30.00m20.00m

LA.I [A]

LB.I [A]

LC.I [A]PWM_PER:=180

INPUT[1] := PWM_PER

INPUT := -LB.I

LC.I

-LA.I

LB.I

-LC.I

LA.I

THRES1 := I_TARG - I_HYST

THRES2 := I_TARG + I_HYSTVAL1 := 1

VAL2 := 0Y0 := 1

-14.50

7.80

0

0 30.00m20.00m

Torque Output

-30.00k

302.00k

200.00k

0 30.00m20.00m

FEA Outputs

FEA1.WIRELOSS

FEA1.CORELOSS

FEA1.IsourceA

FEA1.VsourceA

FEA1.EIsourceA

FEA1.FLUXsourceA

FEA1.IsourceB

FEA1.VsourceB

FEA1.EIsourceB

FEA1.FLUXsourceB

FEA1.IsourceC

FEA1.VsourceC

FEA1.EIsourceC

FEA1.FLUXsourceC

FEA1.PHI

FEA1.OMEGA

0

8.50

5.00

0 30.00m20.00m

QS1.VAL + 7.50

QS2.VAL + 6.00

QS3.VAL + 4.50

QS4.VAL + 3.00

QS5.VAL + 1.50

QS6.VAL

Electromechanical Systems

ansoft electronic design automation - cad-it aac/slides/ansoft_desmond.pdf · ansoft electronic...

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