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Hello! First of all, I'm sorry for the bad English, I'm using Google Translate for most of the text.
I'm doing an internship at university in an electronics lab and I've been asked to print a capacitor using a Protomat E33, however, it's my first time using such a machine, I'm not sure I'm...
First, sorry for the bad english.
It's not the first time I've been looking for help on this circuit on the forum.
I'm from Brazil, I'm doing a university project using which basically consists of using a colpitts oscillator with differential pair, with a SAW sensor in its feedback loop. The...
In the case of my first circuit, with the differential pair, where should I add the components that compensate for the loss in dB and the phase correction? At the output of the circuit (Vout)? Or in the feedback loop that goes to the sensor?
How did you calculate the parameters so that the circuit kept oscillating? In my case, I cannot change the values of the sensor components. This is my main "problem", I understand that when placing the sensor the Berkhausen criteria are no longer met, but I can't see which components of my...
I understand that the attenuation will stop the circuit from oscillating, I'm looking for ideas on how to get around this problem.
This is my circuit now, I switched the resistor position to the base of Q1. Still not oscillating, am I dc biasing correctly? any other suggestions?
It's a project for the university, the feedback loop circuit is the model a sensor, which I can't change the values of any of its components. My project consists of building a colpitts oscillator with differential pair that works by adding the sensor to its feedback loop. The sensor has minimal...
First, sorry for my bad english.
I'm building a project using a Colpitts Oscillator with Differential Pair, designed for ~117.6MHz. I'm using LTspice for simulation. The oscillator individually oscillates, but I need it to oscillate when I add a sensor model (as seen in the image in the...
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