Documentation

Low-pass filter

Low-pass filter

The RC low-pass filter is an electronic circuit that filters the incoming Signal. Frequencies lower than the cutoff frequency pass the low-pass filter nearly unhindered and frequencies higher than the cutoff frequency are attenuated by the filter. The cutoff frequency depends on the used components of the circuit.


RC low-pass filter

The RC low-pass filter consists out of a resistor (R) in series with a capacitor (C) (s. Picture1).

RC low-pass filter
Picture1: RC low-passfilter created with TARGET 3001!

You can open the circuit in TARGET 3001! with the name Sim-edu-RC-lowpass.t3001 in the Demo-Projects and directly start the simulation in the demoversion Discover for free. Bei Klick laden Sie die aktuelle TARGET 3001! Discover.

RL low-pass filter

The RL low-pass filter consists out of a inductor (L) in series with a resistor (R) (s. Picture2).

RL low-pass filter
Picture2: RL low-pass filter created with TARGET 3001!

You can open the circuit in TARGET 3001! with the name Sim-RL-lowpass.t3001 in the Demo-Projects and directly start the simulation in the demoversion Discover for free. Bei Klick laden Sie die aktuelle TARGET 3001! Discover.

Simulation in TARGET 3001!

To start a simulation of a circuit in TARGET 3001! press the function key [F9].

Voltage comparison at a certain frequency

To compare the input voltage Uin and the outpu voltage Uout at a certain frequency; fullfill the following steps:

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Picture3: Simulation of the input voltage Uin and the output voltage Uout at a certain frequency (5kHz)


Sie sehen nun in Bild3 die Simulation der Schaltung aus Bild1. Zu Beginn kann der Grafik ein Einschwingvorgang entnommen werden. Die Amplitude der Ausgangsspannung Uout entspricht bei 5kHz circa 30% der Amplitude der Eingangsspannungs Uin. Dies kann auch mithilfe von Bild4 überprüft werden.


Voltage ratio of a frequency range

If you want to view the ratio between the input voltage Uin and the output voltage Uout of a certain frequency range; fullfill the following steps:S

Voltage ratio of the input voltage Uin and the output voltage Uout of the frequency range from 100Hz to 100kHz
Picture4: Voltage ratio of the input voltage Uin and the output voltage Uout of the frequency range from 100Hz to 100kHz







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also: lowpass, low pass filter, Tiefpass, Tief pass, high-cut filter, treble cut filter