High-pass and low-pass filters

Principle

A coil, a capacitor, an ohmic resistance and combinations of these components are investigated for their filter characteristics as a function of frequency. The phase displacement of the filters is determined also as a function of frequency.

Benefits

• Simple and very clear set-up: only few components required
• Cost savings: No need for an additional power supply
• Simplified implementation: all pre-settings already prepared
• The software controls all devices simultaneously
• Further experiments in electricity and electronics can be performed with the equipment

Tasks

• Determination of the ratio of output voltage to input voltage with the

1. RC/CR network,
2. RL/LR network,
3. CL/LC network,
4. Two CR networks connected in series

• Determination of the phase displacement with the RC/CR network.
• Determination of the phase displacement with two CR networks connected in series.

Learning objectives

• Circuit
• Resistance
• Capacitance
• Inductance
• Capacitor
• Coil
• Phase displacement
• Filter
• Kirchhoff's laws
• Bode diagram

Operating system-independent software included. Computer not provided.