How do I simulate an LED driver?

Open this page and use the live 555 Timer tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive an LED driver from your own measurements.

Use case · powered by 555 Timer

555 Timer for an LED driver

Simulate an LED driver live in your browser. This runs the real 555 Timer solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

555 Timer (Astable)Live

the classic square-wave oscillator

Controls

Presets

R1 (kΩ)

R2 (kΩ)

C (µF)

In astable mode the 555 oscillates on its own, charging the capacitor through R1+R2 and discharging through R2. Frequency f = 1.44 / ((R1+2R2)·C), and the duty cycle always exceeds 50% for this classic circuit. Educational tool.

▶ Run in Python

Data Inspector

Frequency1.4 Hz

Duty cycle55%

High time395.01 ms

Low time325.71 ms

Governing equation

f = \frac{1.44}{( R _{1} + 2 R _{2} ) C} = 1.4 Hz, D = \frac{R _{1} + R _{2}}{R _{1} + 2 R _{2}} = 55%

Reading this result: A slow 1.38 Hz output (period 0.72 s) suits an LED blinker; the large 10 µF capacitor dominates the timing.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

About this simulation

The full 555 Timer tool models an LED driver with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with 555 Timer

555 Timer for an RLC circuit 555 Timer for a power supply 555 Timer for a transformer 555 Timer for a DC motor 555 Timer for an op-amp filter 555 Timer for an antenna 555 Timer for a transmission line 555 Timer for a PCB trace

Other ways to simulate an LED driver

Fourier Transform for an LED driver Bode Plot for an LED driver Filter Designer for an LED driver PID Controller for an LED driver Transmission Line for an LED driver Op-Amp Circuits for an LED driver

Frequently asked questions

How do I simulate an LED driver?: Open this page and use the live 555 Timer tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive an LED driver from your own measurements.