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17 Threads found on edaboard.com: **Average Pspice**

for example, i want to compute the **average** fo i(l1) in **pspice**, i use eva goal function. i can find avg() function in "analog operators and fuctions" list. but i write avg(i(l1)) in the trace expression. system tells me "invalid expression(s)". i donot know what is my mistake. would you tell me how to compute the **average** in ORCAD (...)

Software Problems, Hints and Reviews :: 24.09.2004 01:30 :: achilles.wang :: Replies: **0** :: Views: **1814**

hi everyone...
can u teach me how exactly can we find the **average** output voltage of power amplifier using spice?
thanx

Hobby Circuits and Small Projects Problems :: 18.03.2010 12:25 :: marinara27 :: Replies: **0** :: Views: **1233**

Have you learned and understood **average** modeling theory? If not then read first, if you have done, just read more and further along the path.

Power Electronics :: 03.09.2012 20:48 :: bill66656 :: Replies: **5** :: Views: **618**

Hi,
I prefer IsSpice.She has open spice model libraries.
Many paper are about SMPS **average** spice modeling,such as Dr. Sam Ben-Yaakov's SIM model,Dr. Ray Ridley,Steven Sandler and Dr. Vatche Vorperian's model.We can easy build up our own SMPS spice model libraries.
I have built a **average**d SPICE Model of the Synchronous Buck Module TPS54310 with I

Software Problems, Hints and Reviews :: 02.12.2003 21:09 :: ynhe :: Replies: **4** :: Views: **3308**

Hi
I used INTUSOFT_ICAP4.
You could build some **average** spice model for loop analysis.
see
YNHE

Professional Hardware and Electronics Design :: 13.05.2004 23:58 :: ynhe :: Replies: **12** :: Views: **2952**

Thank you Huojinsi, but i am just wondering how we should obtain the **average** value ? should it be calculated like V(av)= (Vmax-Vmin)/2 ?? sorry a bit dumb. and do you know anything about the power loss ? like switching loss, conduction loss etc.
1. About **average** value, u can calculate it according to Vmax and Vmin of steady-state si

Analog Circuit Design :: 13.12.2005 22:52 :: huojinsi :: Replies: **20** :: Views: **4869**

Q6 in not a LO. This is a super regenerative receiver. Quenching is needed to periodically set oscillation of Q2 ON and OFF. In this way the **average** gain of Q2 is very high, thus the sensitivity of receiver.
Vhen simulating such circuit first try to find propper bias for Q2 at which it will oscillate. This bias should be in the voltage range of C1

RF, Microwave, Antennas and Optics :: 04.03.2007 02:37 :: Borber :: Replies: **17** :: Views: **3018**

how to create a subcircuit of **average**d switch model which consist of E value and G value in **pspice**? then, how to place in boost converter to replace diode and transistor and simulate using **pspice**??

Analog Circuit Design :: 28.03.2007 11:31 :: vivian248 :: Replies: **4** :: Views: **1049**

For **average** model, there are some lib and example from "Fundamental of Power Electronics" by Maksimovic
For state space model, you can take L and C as states derive the state sapce in simulink, that works as well.

Analog Circuit Design :: 18.09.2007 11:10 :: leg1234 :: Replies: **3** :: Views: **2615**

Hi,
I would just like to ask, how to make **pspice** calculate the **average** power disipation on a Mosfet? Basically you have to calculate the integral of W() divided by time. I tired It's an "Error: Invalid expression.". But I'm not sure that the AVG is the right function for the job anyway, si

Power Electronics :: 19.04.2009 14:46 :: Mercury :: Replies: **7** :: Views: **13393**

I would like to ask how to design boost converter with feedback controller, using **pspice** software?
any ideas?
how to adjust duty ratio for the **average** model circuit?
which OpAmp is more suitable to use in the software **pspice**?
thanks

Power Electronics :: 26.09.2009 03:07 :: akrem.mohamed.elrajoubi :: Replies: **0** :: Views: **603**

you need to know your boost converter's worse case applied voltage & current. then multiply that number by 1.3 and find a mosfet with at least that much rating.
then evaluate your losses of conduction vs. switching frequency. try to find a mosfet that will give you **average** losses of the same value in each while working at rated conditions.

Analog Circuit Design :: 22.11.2009 09:39 :: Mr.Cool :: Replies: **5** :: Views: **1935**

There's apparently an importing misunderstanding. You are plotting input signal and output signal power. From this values, you
can calculate power gain, but not efficiency. Efficiency is the ratio of **average** output power to DC input power (assuming that
the signal input power can be neglected). If your amplifier has a low power gain, so that th

Power Electronics :: 01.04.2010 08:52 :: FvM :: Replies: **14** :: Views: **1052**

For your meaning of "constant power discharging", the **average** charging current will be equal to the **average** discharging current. This is the formula.

Analog Circuit Design :: 21.06.2011 22:24 :: leo_o2 :: Replies: **7** :: Views: **1548**

I guess you want to use transient analysis and determine **average** DC input/output values. In this case, I don't see other chances than a parametric analysis. The only problem is, that it doesn't directly produce a plot.

ASIC Design Methodologies and Tools (Digital) :: 26.10.2011 12:20 :: FvM :: Replies: **4** :: Views: **940**

You can just use the equation Id = 0.5 Kn (W/L) (Vgs - Vth)2 (1 + λ Vds)
Do the simulation for Different Id, Vgs, Vds, You have two unknowns Kn and λ which you can then calculate.
These values will change with the operating conditions. λ will vary with Vds and Id and a lot of other parameters.
You might have to do a bunch of simula

Analog IC Design and Layout :: 13.02.2013 05:10 :: nitishn5 :: Replies: **4** :: Views: **557**

Hi,
the easiest way I suppose is using a spice "measure" to calculate the rms current of Idd. Google "spice rms current" and you should get what you want. Of course after getting the simulation result for the current, you need to multiply it with the value of the power supply to get the **average** power dissipation.
Hope this help,
Regards,
Gi

Power Electronics :: 23.07.2013 11:11 :: George_P :: Replies: **2** :: Views: **170**

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