What effect does the circuit diagram of the capacitor?-CodePudding

Trouble great spirit carefully explain

CodePudding user response:

refer to the second floor the wise know already should good karma response:

Elder brother, what is the meaning of this, I don't understand

CodePudding user response:

Base and the collector of the waveform diagram, look from the waveform graph base have larger negative pressure point, that is the first level of conduction on the capacitor charging voltage applied (negative) capacitor voltage on the left is right, resulting in transistor cut-off, the triode as leads to the next level of start charging capacitor, the capacitor charging voltage will be applied to the next level behind transistor's base when the triode conduction, see from the chart the curve of the capacitor charging waveform similar triangles,

CodePudding user response:

Similar triangle capacitor discharge voltage, when the end of the discharge triode conduction,

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Discharge circuit for R3C1, so the delay time is adjusted R3C1

CodePudding user response:

refer to 6th floor wise men know already should good karma response:

discharge circuit for R3C1, so the delay time is adjusted R3C1

The great god, can you give the younger brother to describe what happened after electricity according to the time sequence circuit, thanks brother

CodePudding user response:

Look at the waveform in the graph, compare the usual explanation is triode with nonlinear and circuit parameters is not absolute consistency will fluctuate in the circuit,

CodePudding user response:

And the tiny fluctuations after continuously enlarge to trigger source, otherwise you need to send an external trigger signal, a triode rotating globe and conduction will continuously circulation,

CodePudding user response:

To make it to confirm the noise amplification later become a trigger source, the capture the waveform is clear,

CodePudding user response:

references a wise man should know already take good karma, 4/f, response:

base and the collector of the waveform diagram, look from the waveform graph base have larger negative pressure point, that is a former level of conduction on the capacitor charging voltage applied (negative) capacitor voltage on the left is right, resulting in transistor cut-off, the triode as leads to the next level of start charging capacitor, the capacitor charging voltage will be applied to the next level behind transistor's base when the triode conduction, see from the chart the curve of the capacitor charging waveform similar triangles,

, still have a few questions, isn't this a few capacitor charging at the same time? How can have triode deadline, the next level capacitance charging this mean

CodePudding user response:

The three triode is also 3 amplifying circuit, from the waveform can be seen in the graph, after a period of time to noise amplification, finally enlarge to the triggers of amplitude, amplification is can see in this picture, trigger later due to the change of amplitude is very big, will not see small waveform,

CodePudding user response:

Small signal when triggered into the so-called charge and discharge conditions, large signal is held in a state of the switch,

CodePudding user response:

In order to prove that put a lot of influence on the state of trigger, I got a level 5 circuit, may see really faster than level 3 into the trigger condition, enough to prove that triode amplifier plays the role of,

CodePudding user response:

Capacitance lag time delay effect, at the same time, due to the delay phase shift effect produced a "shock" effect

CodePudding user response:

Transistor itself is a noise compared with the vacuum tube and the field effect tube, the senior should choose tube amplifiers or reason lies in the field effect tube.
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CodePudding user response:

Can I get this 5 day 2 5-tetrafluorobenzoic light-emitting circuit can run normally, this figure is section 4,

This figure is

RC phase-shift form oscillation, 3 day oscillation is slow, section 4, 5 day oscillation is faster, oscillating up 2 day, why?

CodePudding user response:

See section 2 RC clutter

See section 3 RC oscillation

CodePudding user response:

C1, c2 and c3 coupling and phase shift, coupling is self-evident, and the back of the C R coupling will produce phase-shifting, the phase shift value of a different frequency, when the frequency of the total phase shift is 180 degrees, if the closed loop gain is greater than 1, will be on this frequency

CodePudding user response:

To say, of course, this is just a simulation, then, if really to use oscilloscope to observe will also get the same clutter? Unknown,
But today to see this article, it is, I believe,

CodePudding user response:

Section 4 RC oscillation

Section 5 RC oscillation

CodePudding user response:

Capacitor charging and discharging... Realize the effect of time delay,

CodePudding user response:

If you have different opinions, please give a figure with instructions, and can verify, all ears,
I give a trigger small signal from outside, quickly enter the working state can be seen from the waveform diagram, verifiable,