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- [SOLVED] - VCO Does not oscillate | Forum for Electronics
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 testing and checking at C10 in a spectrum analyser; I roughly get -10dBm Is there a method to
- Why does my opamp, configured as a buffer, oscillate?
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 analysis, and find out that the frist pole is +16 3369MHz What should I do? Thank you for you help!
- 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
- Why does this current limiter oscillate? - Forum for Electronics
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 resistor to the non-inverting input The amplitude of the oscillations goes down if I add a resistor
- Oscillators using Op. Amp. How they start to oscillate
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 about how to calculate the value of resistors, capacitors, and other external elements, to get a
- [SOLVED] - Ring oscillator with even number of inverters
Now if we have even number of inverters We have 0 degree phase shift because of the inverters 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] - why this circuit oscillate? | Forum for Electronics
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 feedback (R3-C branch) for having oscillation, namely positive feedback>negative feedback, what condition (s) must be valid?
- [SOLVED] Selecting oscillator mode for microcontroller
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 of devices: EC (External Clock, RA6 Available) ECIO (External Clock, Clock Out RA6) HS (High-Speed
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