A scheme of simple band-pass RC- and LR- filters on operational amplifiers containing only one capacitor or inductor and 3 resistors is proposed. A comparison is made of the amplitude-frequency ...
Recently there have been a series of design ideas published based on the topic of “processors” of PWM signals. The purpose of these processors is to minimize both the settling time in response to a ...
Filters made from tree branches can purify drinking water sources, a new study finds. Prototypes of these xylem filters, tested in India, show promise as a low-cost, natural filtration option. The ...
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