Why does this current limiter oscillate? - Forum for Electronics It doesn't oscillate as long as the output resistance is high enough (Vs_TEY to GND), but it starts to oscillate when the output resistance gets somewhere below 100Ohms I've though of increasing the gain by using a PNP instead, but I would rather find a solution that works well with a fet as a bipolar transistor would need a constant base
Why an opamp may act like a latch or oscillator? in RAZAVI's book,he said if the positive feedback gain at about zero Herz, the circuit just latch not oscillate in the ring oscillator design, if the invert stage number is odd, if meet the the phase shift is 180° and the loop gain is larger than unit, then it will oscillate if the invert stage number is even, the output will latch at the
LC VCO doesnt oscillate in transient analysis Can anyone comment on how to get the LC VCO to oscillate in transient analysis please? Initial conditions are set, and PSS Pnoise works fine But in transient analysis VCO simply doesn't oscillate Thank you
how to make bpf oscillate at the center frequency for a narow-band band pass filter(bpf), the bpf gain has the maximum gain at center frequency f0 now, i want to make the bpf oscillate at f0, how to do it? what i thought is that, if the loop becomes positive feedback, then it can oscillate at the center frequency f0 however, for a second-order bpf (active RC structure with feedback loop
[SOLVED] very basic doubt about ring oscillator 3) Why does not it oscillate? It has 360 deg phase shit and gain bigger than 1 There are 360 deg phase shift for DC !!! Should it oscillate at 0 Hz ? For example, if a positive dc input causes a positive dc output, this state is stable and holds if both nodes (input and output) are connected to each other This is the classical dc latch-up
Relaxation oscillator in CMOS (0. 18um) - Forum for Electronics which are simulated to oscillate won't, and ones that simulate stable will oscillate on the board In this case you need to do your work in tran and give it a current impulse "kick" somewhere away from the timing cap Observe and report Why have you not regaled us with the useful results of your thorough and insightful debug efforts, to date?
[SOLVED] - VCO Does not oscillate - Forum for Electronics Replace the L12 100nH inductor with bigger value (e g 1uH) and the VCO will oscillate But you have to pick-up the output signal from the emitter, not from the collector, as it is now Using LTspice I get steady oscillation arround 145 MHz, using the values and components in the picture attached
ring oscillator question - Forum for Electronics I was trying to build a ring oscillator on Pspice, but it doesn't oscillate (I posted the output waveform) PMOS, NMOS L is 0 2um, and Pmos W=4um, Nmos W=1 8um If you know what the problem is, please give me an advice Thank you
VCO simulation: how to get the output to oscillate? Re: VCO simulation Thanks for the explaination I am using triple feedback ICO structure I managed to get the Oscillation yesterday when i initialise some of the feedback loop but today when I try to get back the osc, it didnt work
SA602 colpitts oscillator help needed | Forum for Electronics There should be no problem getting this to oscillate I used a later version NE612 and a 10 7 MHz crystal filter connected as shown, and it worked without any problems The probe is on the base (pin 6) On the emitter, the amplitude is a bit less Many years ago, I experimented a lot with the 612 and 614 5 making transceivers