12 Threads found on edaboard.com: Self Oscillator Circuit
Hello I have found this power pierce oscillator in an old magazine and I have tried it with sucess, using the 2n2166 which gave max output at 3.5W.
I have also seen this circuit which is another type of oscillator that is used as a self oscillating mixer in receive mode.
I was wondering is I c
RF, Microwave, Antennas and Optics :: 09-10-2015 03:33 :: neazoi :: Replies: 4 :: Views: 176
Try CMOS with 1M feedback.
TTL won't work because the input and output levels are asymmetric and it won't self bias. Vin =1.3 while Vout averages around 2.5 or less for TTL.
Analog Circuit Design :: 08-20-2014 02:56 :: SunnySkyguy :: Replies: 8 :: Views: 277
The bias topology of the last source follower FET is a "Combo, Constant-Current / self-Biasing" technique, which was implemented to establish a flat load line without sacrificing the dynamic range.
Perhaps can add a different current source than the one is working now, but would be a challenge to tune the bias point to maintain a good sinusoidal s
RF, Microwave, Antennas and Optics :: 07-11-2012 15:19 :: vfone :: Replies: 4 :: Views: 640
The first circuit is a RF amplifier, its output is tuned to a frequency set by C' and L.
The second circuit is a self oscillating mixer as found in the front end of a AM radio. L' and C4,C5,C6 tune the oscillator. C and L tune the IF transformer.
Third circuit, T2 seems to be an (...)
Elementary Electronic Questions :: 03-05-2012 12:17 :: chuckey :: Replies: 1 :: Views: 448
"Costly" ICs or not, they at least need to implement a boost converter, using an inductor/transformer and an oscillator, possibly a self-oscillating switching stage. Achieving low quiescent current and high efficiency is kind of a challenge for a simple low part count boost converter.
Power Electronics :: 01-11-2012 04:19 :: FvM :: Replies: 1 :: Views: 577
I have a question about self-oscillation schmitt trigger frequency? Can I get 10 MHz square wave from self-oscillation schmitt trigger. I build up schematic that is given below. Also, I must use LM158. Anyone can give me an idea if it is possible to
Elementary Electronic Questions :: 08-17-2011 03:38 :: OsmanH :: Replies: 4 :: Views: 1410
If you think of shrinking to lower effective width: ohmic resistance is the least problem. The self-inductance of such a metal connection on chip is in the order of about 0.2 pH/?m , i.e. its impedance is ≈1kΩ/?m at your frequency.
Skin effect doesn't matter: skin depth is > 1?m.
Depending on resistive matchin
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 06-19-2010 10:47 :: erikl :: Replies: 1 :: Views: 605
Below pls. find a paper on self-biased amplifiers!
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 05-06-2010 08:50 :: erikl :: Replies: 2 :: Views: 1145
In many textbooks the double integrator oscillator DIO (quadrature oscillator) is mentioned as a circuit which is able to perform self sustained oscillations at a frequency Fo=1/2*Pi*T (T1=T2=T=RC=Time constants of both stages).
But this circuit has some mystic properties and I ask myself: (...)
Analog Circuit Design :: 04-14-2010 10:14 :: LvW :: Replies: 1 :: Views: 1549
I'm designing a 2 legged robot, which will be able to move backward when bumping into an object. But now i only concern how to change from moving forward to backward, by triggering the changes my self, no need bumping into an object. Still testing.
Can anyone give me some ideas? I'm really stuck here.
Analog Circuit Design :: 11-24-2007 06:13 :: menirva :: Replies: 0 :: Views: 596
I want if anyone help me to design a selfexcited mixer ( BJT Mixer ) in general circuit and using ADS tool .. I just want this as a training to the ADS software ..
Thank you very much ..
RF, Microwave, Antennas and Optics :: 07-10-2005 15:17 :: ahmad_abdulghany :: Replies: 10 :: Views: 1382
I design a Colpitts oscillator f=2GHz.But the output is 500MHz and its this self oscillating?how to eliminate it?
RF, Microwave, Antennas and Optics :: 04-21-2005 08:10 :: liberal :: Replies: 1 :: Views: 984