Oct 25, 2006 #1 D ducnguyenvn Newbie level 1 Joined Oct 25, 2006 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,285 300hz filter Input signal: Power line include 50Hz or 300Hz /220VAC and ultrasonic signal or FM signal (7kHz, 20khz, 50kHz). Output signal: ultrasonic signal or FM signal, no offset, DC = 0 (no oscillation).
300hz filter Input signal: Power line include 50Hz or 300Hz /220VAC and ultrasonic signal or FM signal (7kHz, 20khz, 50kHz). Output signal: ultrasonic signal or FM signal, no offset, DC = 0 (no oscillation).