1000 Threads found on edaboard.com: Power Amplifier And Ads Simulation
usually in power amplifier design u need to use LSSP , which is based on HB simulation , small signal S parameters are not ususally used in PA
also it will be not vaild at all if u design a class C PA
so use HB , or LSSP
RF, Microwave, Antennas and Optics :: 08-15-2006 05:24 :: khouly :: Replies: 3 :: Views: 881
i need a help regarding how to design a power amplifier using ads tools. is there any design guides available? pls help
there're many examples for this in ads.
Analog Circuit Design :: 08-13-2006 03:27 :: renwl :: Replies: 2 :: Views: 611
hi everyone.... can anyone tell me the differences between low noise amplifier, power amplifier and opamp?
Analog Circuit Design :: 02-03-2007 10:48 :: lokesh anand :: Replies: 2 :: Views: 2366
i need a help regarding how to design a 1W power amplifier using ads tools. is there any design example available? and could i design it with small signal S-parameter simulation for its low output power? Or i have to design it with hamonic balance simulation?
pls help (...)
Analog Circuit Design :: 08-14-2006 21:00 :: microwavehongjie :: Replies: 0 :: Views: 797
I designed a power amplifier using ads, and simulated it with Harmonic balance simulator. Since this PA is going to be used in OFDM system, I am looking for a way that simulate it with OFDM input and check the output's shoulder. I really appreciate that if any of you can help me (...)
RF, Microwave, Antennas and Optics :: 12-03-2011 03:13 :: sedighe :: Replies: 2 :: Views: 629
I am beginner for design of power amplifier in ads2009. I have noticed in the ads 2009 Design Guide > power amplifier Examples - By Class Of Operation > class B > Load Pull -PAE,Output power Contours, they have taken the GaAsFET FET1 transistor nonlinear (...)
Microcontrollers :: 10-19-2013 07:33 :: pusparaga :: Replies: 1 :: Views: 285
Hi, can anyone give me some comments about differential and push-pull power amplifier?
1.What?s the difference between the differential power amplifier and push-pull power amplifier?
In my opinion, differential means that two transistors are both (...)
RF, Microwave, Antennas and Optics :: 05-04-2004 21:38 :: yearn :: Replies: 4 :: Views: 4448
Does anybody can tell me the detailed steps for designing a two-stage power amplifier in ads, Such as loadpull, matching etc.
Or you can tell me good a demo about PA design, both document file and video will be ok. Thanks.
RF, Microwave, Antennas and Optics :: 03-04-2008 00:28 :: wireless man :: Replies: 0 :: Views: 631
How to simulate EVM and ACPR of power amplifier in ads? Does anybody can tell me or show me some tutorial files? Thanks!
RF, Microwave, Antennas and Optics :: 03-20-2008 04:14 :: wireless man :: Replies: 1 :: Views: 943
I need to design a power amplifier driving an antenna which is modeled as a load resistor with 50Ω impedance.and the EIRP should ≤-45dbm.and I wonder what the relationship formula among the gain of amplifier,the loss power of load resistor and the EIRP?thanks
RF, Microwave, Antennas and Optics :: 05-25-2008 22:48 :: lily1981216 :: Replies: 0 :: Views: 399
i have designed a class-E power amplifier and i simulate it in ads, i used lumped elements instead of capasitors and inductors and i use cmos transistor from TSMC0.18um designkit and i see good result but when i replace inductors and capacitors with (...)
Analog IC Design and Layout :: 11-23-2009 11:43 :: rezaee :: Replies: 2 :: Views: 764
I have generated a sine wave of 20kHz using pic , now i want to play this audio through speaker, which are better power amplifer and speaker I should use for this application ..?
Microcontrollers :: 03-30-2011 04:31 :: Raveesh :: Replies: 3 :: Views: 432
Theoretically if is not oscillating means that is stable :)
But this concept is not always true. The amplifier can be unstable only at some output levels. The oscillation can occur at operating frequency, but in the same time can occur anywhere, way far from that frequency.
To verify if is stable the simplest way is to use a Spectrum Analyzer
RF, Microwave, Antennas and Optics :: 03-02-2005 12:28 :: vfone :: Replies: 4 :: Views: 2106
I have doubts on power amplifier circuit. I am using RF2117 power amplifier chip, alongwith I have attached the schematic which was given in application notes.
I have doubts on this schematic.
1)What is the purpose of Ferrite inductor? How is it more advantages when compared to ordinary inductors.
2)In the (...)
RF, Microwave, Antennas and Optics :: 12-02-2005 11:30 :: pthoppay :: Replies: 1 :: Views: 1077
is it RF power amplifier or audio range power amplifier ,
and which class do u design A , AB , C or switching classes liek D , E
Electronic Elementary Questions :: 10-17-2006 13:48 :: khouly :: Replies: 2 :: Views: 590
I built this circuit long time ago as a driver for an HF 100W power amplifier, and works fine.
2SC2078 is a 4W transistor used in CB radios, and for 10W output power you have to replace it with 2SC2509, (10W each).
This is also a cheap transistor (if you find it).
Beware that y
RF, Microwave, Antennas and Optics :: 05-21-2007 10:42 :: vfone :: Replies: 6 :: Views: 3606
I'm doing a layout of a power amplifier and I'd like to know if there is any particular techniques (obvious or not) to help heat dissipation. I mean what could I do in the layout of the active part of the PA?
Analog IC Design and Layout :: 11-06-2008 11:45 :: franck :: Replies: 2 :: Views: 1405
You can use low signal S-parameters for a class-A power amplifier which works below the compression point.
RF, Microwave, Antennas and Optics :: 03-12-2009 01:35 :: vfone :: Replies: 4 :: Views: 716
Please help me, im currently working on an active magnetic bearing (AMB) project on which im required to design a current power amplifier and its control circuit:
the specifications are: 40-60Vdc input
5A continuous & 10A peak
Red LED=2kHz & Green (...)
Analog Circuit Design :: 04-20-2009 09:47 :: vilakazyp :: Replies: 4 :: Views: 829
amplifier Research is the world leader building wideband and high power amplifiers.
While ago I’ve checked one of their schematic of a wideband microwave power amplifier, and I can say there was a complete industry, using a lot (...)
RF, Microwave, Antennas and Optics :: 05-19-2009 10:29 :: vfone :: Replies: 5 :: Views: 2625
can anybody help me? I design pulsed power amplifier and I need help with biasing TIM8596-15. How can I do temperature compensated active gate bias and how can I set right drain current? Pulse width is 300ns-30us, D.C. max 20% and PRF 3-50kHz
RF, Microwave, Antennas and Optics :: 12-09-2009 08:13 :: Aalda :: Replies: 0 :: Views: 559
i am working on arm7 ,how to configure audio power amplifier and how to set the baud rate ,
can anyone give the sample code for audio output
Professional Hardware and Electronics Design :: 02-15-2011 01:04 :: mohan_s15 :: Replies: 0 :: Views: 867
i am working on designing a class C power amplifier for small range and small output power (3 watt) and i am using Fm car modulator as the input source to the power amplifier the problem for me is how to transmit the output signal of the car modulator to the (...)
Analog Circuit Design :: 06-29-2012 20:30 :: kumite :: Replies: 2 :: Views: 380
Why should many include a LPF AFTER the power amplifier and not BEFORE?
It seems to me more suitable to cut any unwanted harmonics before they are amplified.
Electronic Elementary Questions :: 01-06-2013 15:59 :: neazoi :: Replies: 13 :: Views: 835
I have a question:
IS spectre PSS simulation can accurately predict power amplifier performance?
Then how about large power amplifiers?
RF, Microwave, Antennas and Optics :: 09-06-2007 21:53 :: zhaofeng1983 :: Replies: 6 :: Views: 1256
i am new one in using ads for amplifier......
can any one help me steps to design power amplifier at 1.5ghz in ads..........
plzzzzzzzzzzzzzz help me.......send some examples or procedure.steps..what data u have.
RF, Microwave, Antennas and Optics :: 12-23-2009 14:27 :: shahzad074 :: Replies: 3 :: Views: 1209
I am designing a RF power amplifier for my final project. The PA adapted Doherty architecture.
I intend to design it for input power of 25 dBm (which is 0.316 W). If the input signal is a sinusoidal signal, how much is the peak voltage?
The 25 dBm, can I consider it as a RMS value and using P = Vrms^2 / R (...)
RF, Microwave, Antennas and Optics :: 04-27-2012 00:34 :: darwinxie :: Replies: 5 :: Views: 711
ads has a example about Class-D amplifier, but that is direct freq amplifier, runing at 850MHz.
You can find that amplifier in ads2011 example, about class-D and THD calculation.
But the live audio class-D amplifer has freq convertion, i.e. has a clock, say 1.6MHz, and (...)
RF, Microwave, Antennas and Optics :: 04-20-2013 19:39 :: tony_lth :: Replies: 5 :: Views: 577
Normally Zload at harmonics should not be this case you'll see total power is lower than delivered power to the load due to harmonics powers.
In ads , there is a good Design Guide for power amplifiers. With this Design Guide , you can simulate your power (...)
RF, Microwave, Antennas and Optics :: 06-16-2003 10:41 :: BigBoss :: Replies: 5 :: Views: 1506
I find that the input and output waveform become sine wave when I use "Harmonic Balance" to simulate it. I don't know whether is it correct or not ?! and which one of the source , ac voltage source or power source, should I use? Both of them can set the desired freqeuency.
Moreover, in the op-amp parameter setting, I don't know what open (...)
RF, Microwave, Antennas and Optics :: 08-27-2007 10:00 :: Ching :: Replies: 2 :: Views: 1171
I have drawn schematic of a 700 MHZ cmos class E differential power amplifier in Cadence Virtuoso svhematic .Now, to verify that it is a 700 MHZ power amplifier i need the graph of Output power and PAE versus frequency . I am not able simulate to get the above graphs. Can anyone, who has (...)
RF, Microwave, Antennas and Optics :: 02-14-2009 07:00 :: sambit87 :: Replies: 1 :: Views: 2324
Im starting my thesis and im gonna make a Class-D power amplifier.
I've found many documents about it, but it's never enough!
Does anybody have documents about it ? Class-E or F to !
Recommend a site?
Anything about simulation PA's in Cadence or ads is good to! i've found some (...)
RF, Microwave, Antennas and Optics :: 02-24-2009 13:21 :: RCunha :: Replies: 0 :: Views: 877
I want to design a class f power amplifier. operating freq is 2.4GHz. Pout is 10-25W. GaAs phemt. I am facing difficulties in ads simulation of the transistor in load pull and source pull analysis due to the unavailable of transistor MET model. Any suggestion on how and where can I get the (...)
EDA Jobs :: 04-28-2009 12:57 :: kezambo :: Replies: 0 :: Views: 757
I want to design a power amp at freq 2.45GHz. I am facing the problem to get the transistor model to use in ads simulation. Any body can help me??please
RF, Microwave, Antennas and Optics :: 06-23-2009 08:42 :: kezambo :: Replies: 7 :: Views: 1671
if anyone has a full example of class-E power amplifier simulation in ads please help me
RF, Microwave, Antennas and Optics :: 09-20-2009 12:19 :: rezaee :: Replies: 0 :: Views: 1167
i need a schematic diagram of class E power amplifier for ISM band and for simulation in ads
RF, Microwave, Antennas and Optics :: 09-29-2009 15:16 :: rezaee :: Replies: 0 :: Views: 862
is there anybody who is familiar with power amplifier designs?
would you please upload an ads file on designing power amps?
how can we determine the nonlinear characteristic of the PA with respect some data like input back off and IP3 level?
RF, Microwave, Antennas and Optics :: 07-25-2010 11:24 :: hisa :: Replies: 1 :: Views: 720
We do measure the P1 db and 3-db back for power amplifier. I am confused regarding 3-dB back off measurement. Is it 3-dB back off from output power or is it from input power, from P1-dB point ?
RF, Microwave, Antennas and Optics :: 07-31-2010 02:53 :: dhavalelectron :: Replies: 4 :: Views: 1539
but my lecturer asked me to do simulation for the circuit attached
Ask him what exactly he wants you to do.
simulation can mean many things, from system level (building block) simulation to circuit level simulation. For small signal, you can use linear simulation, but at higher power (...)
RF, Microwave, Antennas and Optics :: 06-22-2012 07:19 :: volker_muehlhaus :: Replies: 7 :: Views: 1184
I have to design Class A microwave power amplifier for Ka band.
I need help in it. I need to know the step by step method for this. I have seen the books but i got confused, as there is no step by step methods. Can any one help me?
RF, Microwave, Antennas and Optics :: 12-06-2012 22:48 :: asimshakoor :: Replies: 6 :: Views: 552
I am designing a RF power amplifier. I use Cadence but it seems that there is little material about RF power amplifier in Cadence. Now I intend to switch to PSIM. I am wondering if PSIM supports RF power amplifier simulation. My power (...)
RF, Microwave, Antennas and Optics :: 09-04-2013 13:27 :: Osawa_Odessa :: Replies: 5 :: Views: 368
I have designed a class-E power amplifier for a DPQSK modulation. I want to test my circuit now, but I do not now how I should use a PSK modulation in ads. Could you please help me? 106860
There is a M_PSK component in ads which would modulates my data, but how I should use this component? Should I connect t
Digital communication :: 06-30-2014 05:29 :: f_t :: Replies: 1 :: Views: 240
PPP is a Web-based environment for Low-power Design. Its Graphic User Interface is a set of dynamically generated HTML pages that can be accessed through any Web-browser. Three sets of tools are available: Synthesis for low-power, power Optimization and power simulation. File Transfer (...)
Microcontrollers :: 02-25-2002 09:07 :: jimjim2k :: Replies: 0 :: Views: 1804
I would like to design an HF power amplifier but all the schematics i have found are not in the desired bandwith !!
SPecifications of the amplifier:
Input signal : 0 to 12V between 800Khz and 5Mhz
OUtput signal: 0 to 12V but 60W !!!
I would like tu use a PUSH PULL configuration whith low (...)
RF, Microwave, Antennas and Optics :: 09-22-2003 05:25 :: bobytronic :: Replies: 5 :: Views: 20656
Once I desingned an 430 Mhz 2W power amplifier. The first two stages were easy to simulate, the results were more or less similar to the real world. The last stage very different. As always maybe is the model but how do you know that the model is good. Many times the Manufacturer says it is not responsible for the models correlation with real life.
RF, Microwave, Antennas and Optics :: 10-01-2003 13:59 :: mImoto :: Replies: 12 :: Views: 3660
I am new to fourm.I want to desgn super linear power amplifier.I want to perform an accurate device level physical simulation in time domain utilizing RF signal in realistic circuit context to achive the best combination of linearity and power adoptivity for optimal system efficiency. I have no prior (...)
Analog Circuit Design :: 10-04-2004 16:43 :: UsmanAli :: Replies: 0 :: Views: 1009
Yes you can have SMPS to supply power to Audio amps.
Failure to deliver currents in bursts means that you have to increase the capacity of the reservior capacitors.
Why did you feel the need to make a class-b amp for audio? ( Or did you mean class-d?)
Analog Circuit Design :: 03-31-2005 19:28 :: bimbla :: Replies: 10 :: Views: 2059
Oscillator Design and Computer simulation
Randall W. Rhea
This book covers the design of L-C, transmission line, quartz crystal
and SAW oscillators. The unified approach presented can be used with a
wide range of active devices and resonator types. Valuable to experienced
engineers and (...)
Electromagnetic Design and Simulation :: 08-11-2005 20:34 :: h_a_p_y :: Replies: 0 :: Views: 6083
I think that your choice of BFG135A transistor as power amp for that levels is not good. Please specify your requirements and VCC /I which you can use in amp than we can suggest you a much better solution maybe:?:.
RF, Microwave, Antennas and Optics :: 10-14-2005 03:52 :: xtasa :: Replies: 5 :: Views: 837
what is the difference between VOLTAGE amplifier BJT and power amplifier BJT.....
HOW /WHEN a transistor becomes power amplifier from voltage amplifier..........
EITHER by means of amount of doping and/or by means of surface area.....
Electronic Elementary Questions :: 12-11-2005 01:10 :: electronics_kumar :: Replies: 2 :: Views: 712