This discussion focuses on building an RC bandpass filter specifically designed to pass a 60Hz signal. The user seeks guidance on selecting appropriate capacitors and resistors for a Butterworth response with a narrow bandwidth centered around 60Hz. The conversation highlights the preference for an integrated circuit that operates without a separate supply voltage, as opposed to active filters that require additional components and power supply considerations. The recommendation leans towards using LC passive filters for power supply applications instead of active filters.
PREREQUISITESElectronics enthusiasts, audio engineers, and anyone involved in designing filters for power supply applications will benefit from this discussion.
Idea04 said:I'm wanting to build a RC bandpass filter to pass only 60Hz. But I do not know what capacitors and resistors to use. Can anyone tell me what capacitor and resistors I should use?
Idea04 said:I'm looking for a butterworth response, bandwidth to be as close as possible to 60Hz, active filter and it is for power supply. I have a lot of frequencies all on one line and I want to get rid of the unwanted frequencies. I was looking at different types of filters like the switched capacitor filter but it requires a separate supply voltage to operate. And the op-amp requires external parts. What I am looking for is an intergrated circuit that doesn't require a separate supply voltage to operate. And is programed to have a passband of 60Hz.