# Tag Info

Accepted

### Response of diode circuit

I'll try to explain at least some of Peter's point. Let's look at the circuit you have (I am going to redraw it, so be prepared to verify my work): simulate this circuit – Schematic created ...
• 73k

### What is the importance of R1 connected in this circuit?

If $R_{1} = 0\ \Omega$, and $V\!R_{1}$ is adjusted to $0\ \Omega$, then the current through the DIAC and the gate of the TRIAC would be too high, causing one or both to be destroyed.
• 3,694
Accepted

• 73k

### Guitar amplifier emits a continuous beep, which pitch vary depending on "bass" and "gain" knobs. Finding what's wrong in the circuit

Is there an easy fix to it? Fault finding on this circuit should be easy; you have a pre-amp circuit board and, it appears you have a power amp circuit board set deeper into the picture and in the ...
• 396k

• 3,694
1 vote

### Why is this an example of actuator?

The LED has two signals that could be considered a controlled variable (output signal): 1) the colour, and 2) the intensity. The colour is fixed by the band-gap energy as is the voltage drop across ...
• 3,694
1 vote

### 3 dB frequency of first-order active high-pass filter

From the transfer function DC gain is 1 so
1 vote

### Nodal analysis with LEDs

It depends at which level of accuracy you want to carry out your analysis. If by "nodal analysis" you mean "linear nodal analysis", the thing they usually teach at undergraduate EE ...
1 vote

### RC differentiator / RC integrator explanation (input waveform is square wave, triangular wave, sine wave)

If you understood the differentiator output (you said you did) then maybe this will help: - In other words, they are both the same circuit but with different reference points on their nodes so, what ...
• 396k

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