The remote variable resistor functions as a voltage-controlled resistor whose resistance changes based on an applied voltage.

In DC voltage applications, the RC snubber network is typically wired across the relay contacts, whereas in standard AC ...

Save guides, add subjects and pick up where you left off with your BBC account. To investigate the relationship between current and potential difference for a resistor, bulb and diode ...

Figure 1: Diode in series with a resistor We intend to study the behavior of the circuit in the limit for τ → 0 +, that is when the diode is inversely biased by a Dirac pulse. More precisely, it is a ...

Select the right components When the time comes to decide on the components of your circuit – encompassing the likes of LEDs, resistors, diodes, capacitors, and transistors – you will need to think ...

The circuit is simple enough: it uses a capacitor, a resistor, and a pair of diodes (one of them a zener diode). He uses this basic circuit to drive simple regulators with input and output filter ...

Why Zener Diode Matters Think of the Zener diode as a bodyguard for your circuits. It’s widely used to ensure that electronic systems don’t get fried by unexpected voltage spikes. You’ll find Zener ...

Designing a module is outside the scope of this article but it’s worth exploring how circuits work in the context of a synth. We’ll focus on a simple mixer module, from Erica Synth’s DIY range. What’s ...

Numerical procedure Let’s start with the simplest circuit ever: a resistor R fed by an input signal Vin (t) = VM sin ωt. We treat this quantity as an output signal, while the current is scaled by a ...