Questions tagged [active-components]
Components which provide a gain in the circuit where they are applied. Typical examples are transistors and op-amps.
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How to determine passive component values for NEO M8U active antenna?
I need to integrate the NEO-M8U GPS module into a PCB design. I want to use the active antenna supplied with the VCC_RF voltage pin. So I followed the scheme mentioned on the 2.4.2 section of hardware ...
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What is the difference between a source and an active component?
I am having trouble forming a clear definition for a source component versus an active component.
From my understanding, an active component is one which can supply power to a circuit, but may also ...
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Convert resistive rubber-dome switch sustain pedal to dual NO/NC outputs for PSR‑E363
I have a sustain pedal with no active electronics. It uses a rubber‑dome switch that measures about 60 Ω when pressed and open when released. I want to connect it to a Yamaha PSR‑E363 keyboard, which ...
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How to interpolate three points using a circuit?
Interpolating two points to create a circuit which will do what you want is easy, Suppose we have a input voltage Vin and a variable resistor and we want when the resistance of the variable resistor ...
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Can I make active devices share voltage equally using ad hoc shunt resistors?
I have 3 active devices in series, SCRs in this case but I'm guessing that's not important. Each is rated for 2.4 kV. The total voltage I will actually apply is 6.6 kV.
Leakage current is guaranteed ...
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Active load and current source purpose on NE5532
I'm trying to do some reverse engineering on the NE5532 schematic, but I can't understand how is designed the current source for the first stage. What I want to analyze now is in yellow on the picture....
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Active load role on this circuit and possible uses
simulate this circuit – Schematic created using CircuitLab
I came with this circuit to know how an active load can improve it, I still can't finish to understand the role of active loads. The ...
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Capacitors and batteries as active/passive components
I'm trying to better understand the concept of active and passive components, mainly with respect to capacitors and batteries.
I found that - according to Wikipedia - there are two definitions of ...
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Mistake in using KVL and KCL in ideal opamp-circuit
I have the following circuit:
simulate this circuit – Schematic created using CircuitLab
And I used KCL and KVL to write the following sets of equations:
$$
\begin{cases}
\text{I}_0=\text{I}_1+\...
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Is a transistor truly an amplifier?
My understanding of transistor is that in it a tiny current controls a huge current. I get that concept. If that is the case, it is not amplifying anything in my opinion. Sure it does dictate when ...
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Is the Gate-Controlled Diode an instance of a trancitor?
I'm not sure it entirely counts. It certainly isn't useful in the way that the current-controlled voltage source is useful as the original transcitor paper describes, but more importantly, I am unsure ...
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PLCC4 footprint how to connect LED
I am confused as to how I should be connecting this design since this LED LTW-E670DS since it has 4 pins.
How do I connect it?
Pin 2 is Anode and 1 Cathode but 3 and 4?
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Why can you measure input and output impedance of a amplifier circuit with a resistance/potentiometer?
While running simulations for a circuit I measured the input and output impedance by simply adding a potentiometer, turn it up until the voltage peak to peak signal going out reached half and then ...
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Why does moving this ammeter change the polarity of the applied voltage?
Note: I'm not an electrical engineer, I'm a materials engineer. So maybe this question has an obvious answer, but I couldn't find one with a Google search. I also have no idea if I tagged this ...
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Darlington array: How to output desired voltage at uln2803a driver colectors?
Someone suggested this driver array to get the current I need:
datasheet
I also need a 12V signal and about a current of 100mA in order to control a relay coil. My 12V signal would come from a logic ...
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