For K-12 Students · Op-Amp Circuits
Op-Amp Circuits for a Class-D amp
Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a Class-D amp live below — adjust the inputs and watch it respond, right in your browser.
Op-Amp CircuitsLive
ideal amplifier configurations
Controls
Presets
The op-amp is the fundamental building block of analog electronics. With negative feedback, its gain is set entirely by external resistors: an inverting amp gives −R2/R1, a non-inverting amp 1+R2/R1. An integrator uses a feedback capacitor to output the running integral of its input.
Data Inspector
Configurationinverting
Gain-10.00×
Output-10.00 V
Statuslinear
Governing equation
Reading this result: Inverting gain is −R2/R1 = -10.00×: the output is a scaled, flipped copy of the input, set entirely by the resistor ratio.
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Frequently asked questions
- Is this good for k-12 students?
- Yes — this version of "Op-Amp Circuits for a Class-D amp" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.