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Learn something new with our collection of blog posts centered around various topics on PSpice® technology.

Make Reliable Designs That Won’t Fail In The Real World!- Use Smoke Analysis In PSpice (Part 3 of 4)

"A product recall is the process of retrieving and replacing defective goods for consumers". There are so many product recalls nowadays, especially in the Automotive and Cellphone industry. That's a pity...you got to avoid those recalls, or you may lose your value in the market. Effects of product recalls on companies have been well articulated here.

SPICE simulators in general are good at simulating circuits. But, they are not well equipped when it comes to finding the "bad" components in your design. By "bad", I mean the ones which are likely to fail in the future. As a designer, it’s your job/ responsibility to design the most reliable circuit for your application. You need to avoid the product recalls and save your company's money and reputation

PSpice Smoke Analysis makes it easy to find stressed components so you can design a more reliable circuit. It looks at your entire circuit and models expected current, voltage, power and temperature conditions for every component in your circuit- Now that is so cool!

Why to perform Smoke Analysis on your circuit? It has it's critical importance!

Precisely, Smoke Analysis determines:

• Power dissipation for each component
• Junction temperatures
• Maximum current limits
• Breakdown voltage across device terminals
• Secondary breakdown limits

It calculates Peak, RMS and Average Values for all the components in your design. Let's look at the steps to be followed for Smoke Analysis,

Flow for Smoke Analysis:

Here's how the circuit setup for Smoke Analysis looks like,

Smoke Analysis Circuit Setup:

Figure 1: Example RF Amplifier Circuit with Smoke parameters specified

Figure 1 shows the same RF amplifier circuit we used in Blog 1 (Sensitivity Analysis) and Blog 2 (Optimizer) of this series. The values of R4 and R6 have been updated to the Optimized values obtained in Blog 2.

After running Smoke analysis on this circuit, the output window looks like Figure 2 (below)

Smoke Environment:

Figure 2: Output window after performing Smoke Analysis

Looking at Figure 2, note that there is a red bar against the peak VCE value of Transistor Q1- 2N5179 which indicates that it is exceeding the safe operating limitNow that you have identified the component that might cause your design to fail in the future, you can either replace this component or adjust your design.

Let's go with replacing the 2N5179 transistor with a 2N4427 transistor whose values are closer.

Circuit Changes:

Figure 3: Transistor replacement

After making the circuit change, run the Smoke Analysis again and the new results look like this:

New Smoke Analysis results:

Figure 4: Output window after performing Smoke Analysis with the new transistor

New Smoke Analysis results show the all the components including the new transistor 2N4427 are within the safe operating limit.

Realize what you just achieved here?

• Potentially saved the product from failing
• e.g. Even if you save 10% of your million/ billion products that you manufacture from failing, you are saving a whole lot of money
• Above money, comes the reputation. Product's reliability is linked to the reputation of a company, prestige always comes first- you preserved that!
• Avoided lawsuits- goes without saying, again alot of money.

Utilize Smoke Analysis within PSpice Advanced Analysis to make reliable circuits.

Video reference: Leverage PSpice Advanced Analysis to reduce design cost, improve design reliability, engineer's productivity and manufacturing yield.

Try the OrCAD free version yourself and start applying these Advanced Analysis capabilities on one of the many demo designs available in there.

Tue, 2020-06-30 05:11
MichealM
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Yes, you are right and the

Yes, you are right and the designs are real too. It's just that one to follow these designs in a way that it won't look a copy. Instead, it should look like a new one and the innovative one. It is being said that you need a brain to copy resume writing group reviews something. So try to use your brain here.

Tue, 2023-04-25 10:32 (Reply to #1)
brenbobb01
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You make a valid point. We

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Tue, 2020-07-14 09:04
LewisNumbers
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Mon, 2020-10-05 02:38
cicinezm11
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I'm here waiting for your

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Tue, 2021-01-26 00:05 (Reply to #4)
ianmugoya
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There is a great blog which

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Fri, 2020-10-09 10:35
rhainnecoles
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A lack of empathy leads to a

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Sun, 2022-07-17 23:35 (Reply to #7)
Mikay
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Impressive

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Thu, 2023-03-30 12:28 (Reply to #8)
brenbobb01
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Without considering the other

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Sat, 2023-06-17 01:30 (Reply to #9)
soycityco
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Positive customer experience = positive results

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Sat, 2020-10-10 09:46
saeed200
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it should look like a new one

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Sat, 2020-10-10 10:00
saeed200
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here waiting for your full design. You guys are excellent smart lock

Thu, 2020-10-15 06:57
LeoChristopher
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Thu, 2020-10-15 07:24
oscarprice85469
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Tue, 2020-10-27 10:20
Juicerony
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Tue, 2020-11-03 00:52
ianmugoya
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Thu, 2020-11-05 05:29
saeed200
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Thu, 2020-11-05 17:56
ythz
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Sat, 2020-11-07 10:42
plasticsurgeryh...
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Tue, 2020-11-17 18:13
ampva200
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Great!

A product recall would be great but with a negative impact on the business. It would give assurance to the customers but with smoke analysis you don't need to worry about product recall. Check out this site for the best drywall service: www.drywalldc.com

Sat, 2020-12-26 18:13
ahappliance22
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Thu, 2021-01-28 03:42
janejones4237
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Mon, 2021-02-22 09:33
wendyparis19
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Mon, 2021-03-08 08:26
brenbobb01
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Analysis

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Mon, 2021-03-08 22:29
bencavill
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Thanks for sharing.

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Tue, 2021-03-16 21:53
BonnieP
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Tue, 2021-03-23 20:48
BobL
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Wed, 2021-05-26 23:18
jackslesly19
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Wed, 2021-06-02 23:02
frottive5
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Make Reliable Designs That Won’t Fail In The Real World!- Use Smoke Analysis In PSpice <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> roof repair port charlotte fl

Fri, 2023-04-21 02:58 (Reply to #37)
c2tw
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Thu, 2021-06-10 01:33
brenbobb01
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Hmmm.. this is really

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Fri, 2021-06-25 11:07
Olive
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Thu, 2021-08-05 08:44
brenbobb01
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Sat, 2021-08-07 22:37
imaanihurlet13
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Fri, 2021-08-20 05:50
alfsavage10
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Tue, 2021-08-24 08:45
Kameskim
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Mon, 2021-10-04 00:25
melo96
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Blogger is pretty easy to use

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Mon, 2021-10-11 10:42
Olive
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Thanks for sharing this

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Thu, 2021-10-14 13:39
johntremblay98881
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More or less, anything can be

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Thu, 2023-02-23 00:46 (Reply to #55)
c2tw
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Fri, 2021-10-15 08:51
melo96
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When netlisting fails or the

When netlisting fails or the simulation does not start .

Fri, 2021-10-22 15:39
brenbobb01
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PSpice Smoke Analysis makes

PSpice Smoke Analysis makes it simple to identify stressed components, allowing you to create a more reliable circuit. It analyzes your complete circuit and predicts expected current, voltage, power, and temperature conditions for each component—how cool is that when you install it and install gacha club?

Mon, 2022-08-22 02:16 (Reply to #58)
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Mon, 2023-01-16 11:11 (Reply to #59)
brenbobb01
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Very detailed, rich

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Sat, 2021-10-23 02:46
nlp4kids
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Great Work

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Mon, 2021-10-25 13:30
ECR222
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Wow! Game changer! I'll

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Sat, 2021-10-30 12:20
aisonwrnerxbg
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PSpice Smoke Analysis makes

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Mon, 2021-11-01 06:37
oud
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Sat, 2021-11-20 14:37
TB24
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Fri, 2023-07-21 01:17 (Reply to #67)
c2tw
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Sun, 2021-12-12 04:48
normanpond8453
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Wow! This PSpice Smoke

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