285 Threads found on edaboard.com: Oscillating
yeah it is possible, but even if out of band, will probably not have too much loss. more likely your oscillator stops oscillating with the load u have. Try a short length of straight waveguide between the two to see if it works then.
RF, Microwave, Antennas and Optics :: 08-06-2013 13:38 :: biff44 :: Replies: 1 :: Views: 420
With the inverting input shorted to output the opamp is probably oscillating. This will make it get warm but shouldn't kill it as it has thermal protection. You would need to check with a high bandwidth oscilloscope as it will be around 400MHz.
I would probably either use a fast opamp to drive a MOSFET or a MOSFET driver IC driving a MOSFET. Ano
Analog Circuit Design :: 07-11-2013 06:20 :: keith1200rs :: Replies: 9 :: Views: 931
It may not oscillating...you have to probe the output .. n check o/p frequency on might amplifing input noise..
Analog Circuit Design :: 06-10-2013 06:32 :: amitjagtap :: Replies: 4 :: Views: 690
i have tried with voltage divider followed by peak dectector ciruit using op-amp, diode, capacitor and resistor, so the peak value can be measured, the output voltage is stable below 1.17V, After this voltage the output become unstable and starts oscillating continously, then i increased the value of resistor so make the values stable, i was succes
Analog Circuit Design :: 06-03-2013 08:53 :: cheetha :: Replies: 93 :: Views: 6010
Plese provide some self oscillating techniques for a flyback transformer
Power Electronics :: 05-21-2013 15:08 :: phobos1 :: Replies: 0 :: Views: 726
I would think that your layout is unstable and the FETs are oscillating in the UHF region and changing the length of leads/decoupling capacitors is stopping the oscillations. Try ferrite beads/10 ohm resistors on the FET gate leads.
Analog Circuit Design :: 05-14-2013 11:59 :: chuckey :: Replies: 5 :: Views: 619
I agree that it can be a problem of closed loop responses of both the source and the LD300 combined.
Did you try to see what is the waveform at the input of the LD300 ?
In may be oscillating.
Elementary Electronic Questions :: 05-04-2013 17:00 :: albert22 :: Replies: 6 :: Views: 1056
I am trying to buffer a signal on a capacitor using lt6202 using differential configuration. All resistors are fixed 100kohm in the differential configuration. The signal at the input is a clear signal oscillating between 1.5 to 3.5V @ 230kHz. The signal can be seen at the output but it is not stable. It is driving a 47k load with parallel to 1k an
Analog Circuit Design :: 04-13-2013 16:55 :: seyyah :: Replies: 5 :: Views: 569
The only difference between sound and electromagnetic wave is that sound waves are longitudinal and the elmag wave is made by charges oscillating normally to the direction of propagation.
Sound is an elastic wave, air or mass particles oscillate forward and backward. Without air or other material sound cannot propagate.
Elmag wave is generated by c
Elementary Electronic Questions :: 04-09-2013 19:22 :: jiripolivka :: Replies: 3 :: Views: 701
1.3GB is a lot of memory, maybe your machine VM settings
have limited the swap space or whatever. But the problem
may be more about generating huge globs of useless data
(such as when some nodes are oscillating at high frequency
I'd start with inspecting the circuit and looking for crazy-small
timestep reported, which might indicat
Analog Circuit Design :: 04-03-2013 16:53 :: dick_freebird :: Replies: 1 :: Views: 1961
a very basic answer:
The kHz or MHz signal u r talking about is a square wave oscillating at 50% duty cycle. For eg. a sine wave is calculated for particular freq (specially line freq of 50/60Hz) in digital domain for a single period or cycle which is in range of 0 to 1 values. The output is then converted to integer values by multiplying by some h
Analog Circuit Design :: 03-27-2013 06:23 :: ashugtiwari :: Replies: 5 :: Views: 719
I'm not sure if it works exactly as shown. Most likely, it doesn't achieve good switching performance in the present form. But there are similar circuits performing better.
A good self oscillating inverter would work over a large load range with good efficiency. A BJT inverter would at best use current feedback to the base, and the frequency mus
Power Electronics :: 03-20-2013 14:05 :: FvM :: Replies: 2 :: Views: 549
The transistor inside of SA602 used as an oscillator is at pins 6 and 7. The transistor is internally biased and don't need external bias.
Seems that you got the rest of the chip oscillating, and when you disconnected the resistor from pin 1 actually you stop this oscillation.
Verify first if the oscillator works, supply the chip, and don't connect
RF, Microwave, Antennas and Optics :: 03-17-2013 21:37 :: vfone :: Replies: 6 :: Views: 1991
I am realizing a low voltage bandgap(shown as "sch.png"). I use a schmitt trigger to turn off the bandgap's start up circuit. The upper threshold voltage of the schmitt trigger is 500mv, and the lower threshold voltage is a
Analog Circuit Design :: 03-11-2013 04:57 :: ivyahoney :: Replies: 3 :: Views: 700
that funny gain glitch at 300 MHz might be an oscillation. When it is running, carefully use a spectrum analyzer to see if there are any spurious oscilations going on. Remember that a spurious oscillation in a 20W amp might actually be oscillating at up to 40 watts or so, so use pads!
RF, Microwave, Antennas and Optics :: 03-01-2013 21:19 :: biff44 :: Replies: 7 :: Views: 1418
When the output V is the same as supply V, it suggests the chip is no longer oscillating. It may stay on, which drains the supply. Or it may stay off, which lets supply V through unhindered to the output stage.
It is a big jump to boost 1V to 3.3V. Whatever the load requires, a boost converter must draw 4 or 5 or 6 times that much current from the
Power Electronics :: 01-26-2013 22:01 :: BradtheRad :: Replies: 2 :: Views: 847
What you have done looks good, The two possibilities as to why it does not work are the crystal not oscillating, try a simple RC oscillator instead, or you have not programed the configuration word correctly. Don't forget to turn off the watchdog timer and set the oscillator mode correctly.
Microcontrollers :: 01-17-2013 02:12 :: pjmelect :: Replies: 8 :: Views: 2525
The frequency is a measure of oscillating charges; it is defined by signal source.
Wave length is a parameter of electromagnetic wave with a given frequency, measured along the line of propagation. If the wave propagates in air or vacuum, the equation c = f. lambda is valid , where c is the speed of light in vacuum.
If you propagate the wave in a
RF, Microwave, Antennas and Optics :: 01-08-2013 12:56 :: jiripolivka :: Replies: 6 :: Views: 741
If the unit is oscillating there is an AC signal across the Resistor so it will interact with the "R" reading (R = V/I).
Also a Multimeter(MM) uses a small voltage to sense the impedance so the MM will add voltage top that circuit
and could change the natural Frequency of Operation.
As an experiment see if your resistors change value while the c
RF, Microwave, Antennas and Optics :: 12-10-2012 20:43 :: Element_115 :: Replies: 10 :: Views: 1726
Check the logic, do you see it oscillating? The output state might be unexpected or possibly unwanted, that's it.
Elementary Electronic Questions :: 12-02-2012 17:44 :: FvM :: Replies: 1 :: Views: 423