All Questions
Tagged with circuit-theory voltage
7 questions
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How to write the equation for the input side of a JFET?
I have been reading about the voltage gain of JFET, but I am unable to understand how to write the equation for the input side. Can somebody explain the method to write the equation for the input ...
- 147
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189
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Transistor analysis with 2 voltage sources
I want to calculate the DC currents of this circuit, and based on the superpostion theorem, I thought of ignoring Vqdc9 first, in order to calulate I2, I21 and I22, as shown in figure 2. After that, I ...
- 455
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3
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922
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Is it possible to constrain a circuit's voltage supply to a specific voltage range?
I have a circuit which requires exactly 12v to work properly, with a maximum tolerance of ±0.5V. The circuit is arbitrary and one can think of it as a theoretical question, but let's say that it ...
- 23
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Why the opposite of the passive sign convention is not the active sign convention?
Studying the fundamentals of circuit theory, I was reading the Wikipedia article on the Passive Sign Convention and found out about the Active Sign Convention (ASC). After searching many introductory ...
- 439
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Finding the unknowns of a current equation leads to non-sense
Suppose a series RLC circuit that is critically damped.
Circuit is RLC in series with a DC voltage source \$ V_S \$ and a switch initially open. Capacitor and inductor are both discharged.
at t=0 ...
- 847
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How do I calculate the unknowns of the current equation for a RLC series circuit?
Suppose I was dealing with the following voltage equation for the RLC series circuit:
\$ v(t) = Ae^{m_1t} + Be^{m_2t} + V_s \$
To know the values of A and B I would do the two initial conditions:
...
- 847
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voltage in an electrical circuit consisting of a current source
In the following circuit is it correct to ignore the current and simply add all the voltages to measure voltage at open end?
simulate this circuit – Schematic created using CircuitLab
If it is ...
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