[SOLVED] - VCO Does not oscillate | Forum for Electronics
May 16, 2022 · Hi All, I am stuck in understanding why the below VCO circuit does not oscillate marked in red colour box. I tried changing the transistor but, still, there is no oscillation. For a good PCB; after …
Why does this current limiter oscillate? | Forum for Electronics
Jan 4, 2012 · I'm struggling to figure out why the circuit below oscillate at about 2-300khz. Changing the value of C10 seems to have no effect, neither does adding an output gate resistor, or adding a input …
ring oscillator question | Forum for Electronics
Nov 3, 2021 · 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 …
Why does my opamp, configured as a buffer, oscillate?
Apr 8, 2005 · why my op amp oscillate? Hi all, I designed a folded cascode op amp with a class-AB output stage to drive a large capacitor. When I configure it as a buffer, it oscillates. I did the .pz …
[SOLVED] - why this circuit oscillate? | Forum for Electronics
Dec 18, 2013 · second, can any one explain why this circuit oscillate, and what happen? third: we know positive feedback cause oscillation. in this pic, we have positive feedback (R1-R2) and negative …
[SOLVED] - Ring oscillator with even number of inverters
Jul 11, 2011 · If the capacitors also provide 360 degree phase shift at some particular frequency then even even number of inverters will oscillate, right? Can even number of inverters oscillate?
[SOLVED] - Selecting oscillator mode for microcontroller
Oct 18, 2022 · I'm currently reading the PIC18F66K80 datasheet, specifically Section 3.3, which discusses various oscillator modes. here's a list of each oscillator mode for the PIC18F66K80 family …
How oscillations start in the oscillator? | Forum for Electronics
May 31, 2015 · Let's take Colpitts oscillator for example. How does the oscillations start? Imagine that we have simple LC circuit. We charge the capacitor with a battery and then disconnect the battery. …
Oscillators using Op. Amp. How they start to oscillate
Jan 8, 2005 · Hello. This is my first topic in this forum. I wonder if someone can help me with a question I have from some time ago. When studying about oscillators using Op. Amp., they always teach you …
How to sim the High-Q OSC in order to make it oscillate?
Jan 10, 2005 · if do not use the .ic or impulse stimulus, how to make the HIGH-Q circuit oscillate, using spectre? Traponly? Conservative?Maxstep? Or any others? thank u