Scale cleaner

Published:2011/7/26 3:11:00 Author:Ecco | Keyword: Scale cleaner | From:SeekIC

The scale cleaner circuit is composed of the power circuit, timer, multivibrator and control implementation circuit, and it is shown in Figure 3-211. Power supply circuit is composed of the power transformer T, bridge rectifier UR, filter capacitors Cl, C2, three-terminal integrated voltage regulator ICl, current limiting resistor Rl and power indicator LED VLl. The timer is composed of the time-base timer circuit IC IC2, start button S2, resistors R2, R3, capacitor C3, current limiting resistor R4 and LED VL2 and so on. Rl-R8 use the 1/4W or 1/8W carbon film resistors.



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