Basic examples

This section showcases common electronic ciruits.

• LED with current limiting resistor: The simplest way of lighting up an LED.

• LED with constant current source: A bit more sophisticated way of lighting up an LED.

• LED pulse with NE555: A simple way to turn an LED on and off periodically.

• LED pulse width modulation (PWM) with NE555: By controlling the pulse witdh (= duration) the brightness of an LED can be changed.

• High load switch with BJT:

• High load switch with MOSFET:

• DC motor control with H-bridge:

• Switch with pull-up/down resistor: A common way how switches and push buttons are connected to e.g. digital inputs.

• Flip Flop: A very basic way to store information.