Blog

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

Know How Your Circuit Works!- Using Sensitivity Analysis In PSpice (Part 1 of 4)

I was thinking of writing a series of blogs showcasing what all ammunitions a circuit designer may need to deal with any complex circuits today. So, here's the first one.

 

The first thing a designer has to be sure of is to thoroughly understand/ know their circuit. This is first of the series of 4 blogs where I will apply the PSpice Advanced Analysis capabilities that can be used to understand any circuit. 

 

For this blog, I will use an RF Amplifier circuit as an example. However, these advanced tool capabilities can be applied to any other circuit of your choice.

 

Use this blog as a reference and apply these capabilities on your own circuit design!

 

Performing Sensitivity Analysis on a RF Amplifier circuit in PSpice

When in college, books tell you everything about your circuit. You already know which components are critical in your designs. But, what about when you enter an industry? You have completely new designs that you build or come across and you need to know which components are critical for your goals.

 

According to the tolerance values specified, the Sensitivity Analysis in OrCAD simulates circuit performance as those components parametric values change. It gives you an ordered list of critical components in your design. As a result, this allows you to save money by loosening the tolerance on those components which are not very critical for your goals and selecting cheaper ones.

 

Let's look at why a circuit designer would perform Sensitivity analysis on his/ her circuit design.

 

Importance of Sensitivity Analysis:

twe.PNG

A sample RF Amplifier circuit for this blog is shown in Figure 1 (below). We will perform Sensitivity Analysis on it and understand the results.

xp.PNG

                                                                                Figure 1: Sample RF Amplifier circuit

 

The main parameters to be considered for any RF circuit are:

  • Bandwidth
  • Gain
  • O/P Noise Level
  • I/P Noise Level

 

So, how do you perform Sensitivity Analysis? What are the steps to be followed? Let's look at the flow...

 

Flow for performing Sensitivity Analysis:

set.PNG

You have got to set your circuit up for the Sensitivity Analysis (below)

 

Sensitivity Analysis Circuit Setup:

change.PNG

                                                        Figure 2: Assign tolerances to the RF Amplifier Circuit

 

Sensitivity analysis varies the values of components based on the tolerance value specified and shows you the effect of those components on the measurement goals. In Figure 2, note that we have assigned 10% global tolerances to all capacitors and resistors in our circuit. Next, perform Sensitivity Analysis on this circuit and let the tool do the magic. The output window would look like Figure 3.

 

Replace.PNG

                                                        Figure 3: Output window after performing Sensitivity Analysis

 

The components are listed in order of their effect on the measurement goal. The most critical component for a measurement are listed at top of the list. In Figure 3, I have selected Bandwidth as the main goal and note that it is most dependent on the value of R4 component.

 

Sensitivity Analysis in OrCAD identified all the key components in the design based on the goals specified.

 

Key Components Identified:

better.PNG

Now, that we've identified key components in the design, let’s set some goals for Bandwidth, Gain, Output level noise and Noise Figure for our sample circuit and let the Optimizer do the work! For example, you can set your goals for Gain to be greater than 9 dB and Bandwidth to be greater than 200 MHz etc. 

 

Blog 2 of this series will be posted shortly where we will see the use of Optimizer on the same circuit.

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.

Thu, 2018-05-31 08:00
iffyffifagu
Offline
Last seen: 1 year 10 months ago
Joined: 2018-05-31 07:59

Get the point that how the circuit

Get the point that how the circuit works using the sensitivity with this great analaysis. Make your point with this session of

rush-my-essay.com and get the great image here. With the blog session of model library you can get the log in pattern here.

Sun, 2018-06-03 07:06
john2028
Offline
Last seen: 1 year 10 months ago
Joined: 2018-06-03 07:02

Let's break down few things

Let's break down few things if you want to get success in a project then start it with analyses. The https://www.tripodsdslr.com/best-professional-tripods-for-landscape-phot... give us better plan for it.

Tue, 2020-02-25 05:02
Henry68
Offline
Last seen: 1 month 5 days ago
Joined: 2020-02-25 05:00

This is completely on money,

This is completely on money, I have been impressed by the unique content it has to offer thanks 

Tue, 2020-02-25 05:03
Henry68
Offline
Last seen: 1 month 5 days ago
Joined: 2020-02-25 05:00

I agree with all the point

I agree with all the point made on post, I have bookmarked this site to get updated 

Tue, 2020-02-25 05:04
Henry68
Offline
Last seen: 1 month 5 days ago
Joined: 2020-02-25 05:00

Thank you for the nice post 

Thank you for the nice post 

Sat, 2020-03-28 16:51
Joshua371
Offline
Last seen: 3 days 1 hour ago
Joined: 2020-03-24 13:21

 Reliable Designs of circuits

 Reliable Designs of circuits are important to use in daily life.Spice Smoke Analysis used to make a circuit which are safe in use and consume low amount current and save more power. The

https://graduateway.com/analysis-of-poetry-by-pablo-neruda/ provides the best design for circuits to add it in the workig process.

Sun, 2020-03-29 02:22
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

muneer

definately enjoy every little bit of it and https://royalcbd.com/product/cbd-oil-1000mg/ I have you bookmarked to check out new stuff of your blog a must read blog!

Mon, 2020-03-30 07:37
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdasds

It was extremely all around composed and straightforward. Not at all like different online journals I have perused which are truly not that good.Thanks a lot https://royalcbd.com/product/cbd-oil-500mg/

Tue, 2020-03-31 08:02
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdsd

definately enjoy every little bit of it and I have you bookmarked to check out new stuff of your blog a must read blog! https://royalcbd.com/product/cbd-oil-250mg/

Tue, 2020-03-31 08:14
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdasd

Nothing compares to Weber using Genesis sort of grills. That is certainly the type gas grills which have been that will always make sure that they deliver a high performance part of down interval https://royalcbd.com/product/cbd-gummies-10mg/

Tue, 2020-03-31 08:20
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdasd

Good composed article. It will be steady to any individual who uses it, including me. Continue doing what you are doing – can'r hold up to peruse more posts. https://royalcbd.com/product/cbd-gummies-25mg/

Tue, 2020-03-31 09:26
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

Good composed article. It

Good composed article. It will be steady to any individual who uses it, including me. Continue doing what you are doing – can'r hold up to peruse more posts. https://royalcbd.com/product/cbd-gummies-25mg/

Tue, 2020-03-31 09:35
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

aSdas

Good composed article. It will be steady to any individual who uses it, including me. Continue doing what you are doing – can'r hold up to peruse more posts. https://royalcbd.com/product/cbd-gummies-25mg/

Tue, 2020-03-31 09:36
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdasds

Very interesting blog. A lot of blogs I see these days don't really provide anything that I'm interested in, but I'm most definitely interested in this one. Just thought that I would post and let you know https://royalcbd.com/product/cbd-capsules-25mg/

Tue, 2020-03-31 12:11
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdsd

It was extremely all around composed and straightforward. Not at all like different online journals I have perused which are truly not that good.Thanks a lot https://royalcbd.com/product/cbd-oil-500mg/

Tue, 2020-03-31 12:15
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdsa

It was extremely all around composed and straightforward. Not at all like different online journals I have perused which are truly not that good.Thanks a lot https://royalcbd.com/product/cbd-roll-on-gel/

Tue, 2020-03-31 12:27
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

muener

definately enjoy every little bit of it and I have you bookmarked to check out new stuff of your blog a must read blog! https://royalcbd.com/product/cbd-salve/

Tue, 2020-03-31 12:40
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

muener

I truly awed after read this in light of some quality work and educational contemplations . I just wanna express profound gratitude for the essayist and want you to enjoy all that life has to offer for coming!. https://royalcbd.com/shop/

Tue, 2020-03-31 12:50
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

muener

This is exceptionally instructive substance and composed well for a change. It's pleasant to see that a few individuals still see how to compose a quality post! https://royalcbd.com/

Tue, 2020-03-31 12:54
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

muener

This is exceptionally instructive substance and composed well for a change. It's pleasant to see that a few individuals still see how to compose a quality post! https://royalcbd.com/

Tue, 2020-03-31 13:07
muneer ahmed
Offline
Last seen: 4 hours 49 min ago
Joined: 2020-03-21 07:43

asdsd

Particular interviews furnish firsthand message on mart size, industry trends, ontogeny trends, capitalist landscape and outlook, etc. https://royalcbd.com/blog/

Download PSpice and try it for free! Download Free Trial
Cadence