IFD:Analog Circuits and Interfaces WS20 21/introduction to electronics: Difference between revisions
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[[file: square_wave_oscillator.png]] This is the breadboard version of the square wave oscillator. The output frequency should be around 50-100Hz. You can connect this to a small speaker or headphone directly. To connect it to a Hifi amplifier input, you need to convert the output voltage from around +-4V to +-1V by using a voltage divider, as shown in the second version with the potentiometer. In this circuit I use the 4-band resistor color marking. | [[file: square_wave_oscillator.png]] This is the breadboard version of the square wave oscillator. The output frequency should be around 50-100Hz. You can connect this to a small speaker or headphone directly. To connect it to a Hifi amplifier input, you need to convert the output voltage from around +-4V to +-1V by using a voltage divider, as shown in the second version with the potentiometer. In this circuit I use the 4-band resistor color marking. | ||
[[file: square_wave_oscillator_potentiometer.png]] This is the breadboard version of the square wave oscillator with potentiometer and output to | [[file: square_wave_oscillator_potentiometer.png]] This is the breadboard version of the square wave oscillator with potentiometer and output to +-1V (suitable for a hifi input (aux)). The output frequency varies with the potentometer. In this circuit you will find the 5-band resistor color marking. Beware: the output voltage divider before the cinch (RCA) connector is a 10kOhm and a 2kOhm resistor. Anything approximate in a 5:1 Ratio should do the trick and attenuate the output voltage below +-1V. | ||
== Filters == | == Filters == | ||