Transcript Document

Getting Start on PowerEsim
PowerELab Limited
www.powerEsim.com
1
It’s Free . . .
• It’s on-line
• It’s for everyone
• Worldwide access
• 100% server side
simulation
• It’s FREE!!
Getting Start on PowerEsim
PowerELab Limited
www.powerEsim.com
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Free accounts from sponsors
• Some sponsors provide a full features PowerEsim
for public user.
Getting Start on PowerEsim
PowerELab Limited
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Your private free account
• User can apply for a 7 days private free full features
account by email address.
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It’s highly accurate
I/P Votlage Vs Efficiency %
Input Votlage Vs Efficiency %
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85
110
230
300
265
160W PFC Input Voltage Vac
Getting Start on PowerEsim
350
405
150W flybackInput Votlage Vdc
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No expert knowledge needed
PowerEsim need
Traditional design need
•
Find MOSFET
 Rds*Crss
•
Find Diode
 Vf*trrm
•
Find Capacitor
 CV
•
Find Core
 k1, k2, k3
•
Find Wire
 Current density
• No equations needed!
• Simple pick and place components
• Or build real Xformer in virtual space
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PowerEsim vs Traditional Design
PowerEsim turn design into
result oriented adaptive iteration
instead of
skill of knowledge application
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Start a design – Design from Reference
• Find a circuit that has closest specification to
your need, e.g. 160W TDA4863 for PFC front
end.
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Reference design will be loaded
• Reference design will
be loaded within a
few seconds
• No need to read
application notes
• Change component
for your own
requirements
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Remember, it’s other people design . . .
As in a real bench,
change Vo by
changing
feedback resistor
to suit for your
own output
voltage
requirement
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Or click the main MOSFET
• Select other component
for cost or performance
reasons.
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Re-define specification
• Click “Detail Spec.”
• Change specification
as you like
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Start a design - Ask our expert
• Enter the simple input
& output specification
• Chose an application
• Click “Recommend
Design”
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How our expert inside the server work
Specification
Search for closest
reference design
Search for best
topologies
• Fuzzy logic is used to rank the
topologies
or
reference
design
according to user’s requirements
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Start a design - more freedom
• Click “Topologies”
• Chose the topology you like
• Then chose for PWM controller too
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Chose a PWM controller circuit
• Double click the PWM block
• Select the PWM controller
• Another PWM circuit will appear
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Finally . . .
Enter the input and
output specification
Getting Start on PowerEsim
then click
“Initialize Design”
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Preliminary design will be initialized
• Preliminary design of
real components will
be initialized within a
few seconds
• A virtual power supply
is on the your bench
• Click LosseSIM
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Losses and it’s details
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•
Loss Analysis – the
first page to click
•
It give total losses at
a practical operating
condition
•
It also shows losses
breakdown at each
component
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Losses and operating conditions
Getting Start on PowerEsim
PowerELab Limited
Vin
From
85 V
To
240 V
Io
3.75 A
2A
Pd
14.7 W 7.7 W
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20
The most important page
•
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PowerELab Limited
Component Finder –
Best optimize tool for
cost and performance
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Change the range
• Extend the range can
select more suitable
components
• Choose different
Manufacturer can refine
the list too
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Click, click, click and select
• A particular one – total &
individual loss
• Highlighted one – total,
individual loss and stress
• Selected one – total
individual loss and stress
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Other than loss, Stress is important
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How we model component?
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Features are same for all component
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More clever method – Smart Optimizer
Click “Select All”
All MOSFET will
dump into a
optimizer pool
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Smart Optimizer – just a click
• Enter
maximum
iterations
• Wait a few seconds
• Click
“Smart
Optimizer”
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Multi dimensional optimization
1
10 resistor
2
10 MOSFET
x
x
:
x
:
10
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10 diode
= 1010 combination
= 31 years simulation
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Smart Optimizer – how it work
Data set
SPD07N60C3
Smart Scan
BU60
SPN04N60C2
SPB07N60S5
IPP50R520CP
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Genetic Algorithm
Search for good component
BU60
SPD07N60C3
SPN04N60C2
SPB07N60S5
IPP50R520CP
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Sorted one by one
• Result will be ranked
• Click to view each result
• Optimized Component will be
shown
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Diode or Active Diode
• Click the diode you
like to replace by
Active Diode or
Sync Rect.
• In the Component
Finder, change it’s
“Rectifier Type” to
Active Diode
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Search more MOSFET
• Extend to higher
current range is
usually needed
• Extend the body
diode’s trrm can
find more MOSFET
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Select a better Sync Rect.
• 0.5W Active
Diode loss
• 2.54W
SCK loss
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Now click T1 and go to Magnetic Builder
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Background - What else we consider for a transformer
m=2
Pd  2m 12 
H
Lk 
uo

Ik

H 2  dv
sinh   sin 
cosh   cos 
Proximity effect
Leakage inductance
Pd  Vol 
f
 d  f 2  B2
a
b
c


B k1 B k 2 B k 3


Core losses
Dskin


uo    f
meter
 d

2 Dskin
f  B 2  l wire  d wire 4
Pd 
 wire
Fringing flux
Skin effect
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Magnetic Builder - Build a single
transformer alone
•
User can build a
single sand alone
transformer by
pressing the button
“Magnetic Builder”
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Design a single Xformer – Where it
apply?
•
Getting Start on PowerEsim
Choose the application of the magnetic
component, e.g. it is a “Flyback Xformer” or
“Input Choke”
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Design a single Xformer – Operating conditions?
•
•
Getting Start on PowerEsim
Enter the simple operating condition of the
application, e.g. the operating condition of the
“Flyback converter”
Press “Recommend Design,” a preliminary
Xformer with core, wire, tape and winding
sequence, will be recommended.
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Design a single Xformer – Full version Magnetic Builder
•
Click the “Advanced”
button will go to the
full version Magnetic
Builder
and
do
whatever you like.
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Any real core you like
•
Chose the range of Ae
•
Select Core shape
•
Select Manufacturer
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Instant preview winding when thing change
Getting Start on PowerEsim
•
Click the “preview winding”
•
Corresponding winding cross section will be
shown
•
Supported on Core, N and Wire.
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Seeking the best Lm
Getting Start on PowerEsim
•
Click the “Inductance” button
•
Enter the range of inductance
•
Highlight each in the list, select according to
total loss and stress.
•
Double check OCP is not be triggered.
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Find the best number of turn
Getting Start on PowerEsim
•
Click the “Number of turn” button
•
Enter the range of turn
•
Highlight each in the list, select according to
total loss and stress.
•
Double check OCP is not be triggered.
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No. of turn is not just an abstract number !
Getting Start on PowerEsim
•
Click the “Preview Winding” button
•
Observe how winding structure change with
number of turn.
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Add more copper?
•
•
•
Getting Start on PowerEsim
Click the “Change Wire” button
Click the “No. of Parallel Wire”
Add more parallel wire as you like.
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Copper foil can be used
•
•
Getting Start on PowerEsim
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Click the “Use copper foil”
button
Enter the copper foil size
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47
Faraday shield can be added
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•
Click the “Add Pri Wdg” or
“Add Sec Wdg” button
•
Click the check box “Faraday
Shield”
•
Click the combo box W”x” to
arrange for the layer of the
Faraday shield
•
You may go to “Winding
Construction” page to further
arrange for the shield.
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Arrange each winding layer you like
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The dot of a winding
•
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User can define whether
the winding is started at
dot sign or not
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Where to start winding
•
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User can define whether
the winding is started at
upper end or lower end of
the winding layer
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51
How to wind a winding
•
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User can define the
location of a winding at
the center, lower part or
upper part of the
winding layer. Distribute
the winding all over the
layer is also possible.
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52
Layer to layer winding method
•
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A winding may occupy
more than 1 layer.
Choose “Tight” will
ensure wires to full up
all space in it’s layer
before go to the next
layer. Choose “Shared”
will resulting in even
distribution on each
layers
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53
Inner tape between each layer
•
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PowerELab Limited
Inner tape can be
placed between each
layer of Multi-layers
winding.
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Customize different bobbins type
•
Getting Start on PowerEsim
Thickness of each wall and the type of split bobbin
can be defined in “Bobbin Setting”.
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You can make a transformer like this . .
Getting Start on PowerEsim
•
You can change the number of wire used
•
You can change the size of the wire
•
You can control how you place the wire
•
You can use copper foil to replace magnet wire
•
You can split the bobbin
•
You can add Faraday shield
•
You can do anything you like . . . .
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Transformer drawing will be followed
•
•
Getting Start on PowerEsim
Transformer drawing will be automatically
generated by pressing the “Generate
Drawing” button.
Details testing methods, P/N, material
can be edit before printing.
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57
Thermal – knowing Temp. at day 1
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Thermal – Pick and Place
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•
Highlight the
component on
left bottom side,
pick and place
them on PCB
•
Or, select the
component you
like at left upper
corner combo
box
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Thermal – Side View
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PowerELab Limited
•
Click the side
view button to
touch up the
vertical location
of components
•
User may click
back to “Nor-mal”
button when
finish vertical
alignment
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60
Thermal – Different Heatsink shape
Getting Start on PowerEsim
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•
Highlight the
heatsink and click
the blue
component
button below
•
You will go to the
component page
and then select
different heatsink
type
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Thermal – Attach components
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•
Highlight the
heatsink and
“shift+highlight”
on the MOSFET
•
Press the
horizontal group
and attach button
to attach the
MOSFET to the
heatsink
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62
Thermal – Final Thermal Result
•
It will only
take a few
seconds to
see the
thermal result
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DVT – check the stresses
• DVT Report check every components
stress and also circuit design constraint.
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MTBF – how long it last
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Use thermal result check box
•
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Once this check box is clicked, all
simulation, e.g. DVT, MTBF, etc, will
be base on junction Temp. from
thermal simulation result, otherwise
default value will be used
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66
Loop Analysis– how stable the system
•
Getting Start on PowerEsim
Gain and phase margin will be immediately
known with after any change or circuit
component
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Loop Analysis– automatic compensation
•
Enter the expected
DC gain, phase
margin and cross
over frequency
•
Press “Automatic
Compensation”
button
•
System will iteration
to best fit the points
by changing the
component marked
with “Enable for Automatic
Loop Compensation”
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Loop Analysis– transient loading
•
Getting Start on PowerEsim
Define step loading waveform and corresponding
output transient loading response will be shown
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Harmonic – knowing input current harmonics content
•
Getting Start on PowerEsim
All input current parameters, e.g. PF,
THD, harmonic content can be seen
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Waveform – the least important tools
•
Getting Start on PowerEsim
Critical component’s waveform will be
illustrated
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Magnetic Builder – build any transformer
•
Getting Start on PowerEsim
You can build any kind of transformer on
your own wish and press a button to
print the corresponding transformer
drawing.
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BOM Builder – BOM is always ready to print out
•
Getting Start on PowerEsim
BOM is always ready to print and will be
updated automatically. It save a lot of
preparing document time for engineer.
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Report Builder – Generate all documents with a click
• Simple a click
- All
result from analysis or
tools can be exported to
Excel file for engineering
documentation.
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Download – a lot of document is ready to download
•
A lot of document and publication
are ready to download. It is helpful
to becomes a PowerEsim expert.
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Getting Start on PowerEsim
PowerELab Limited
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