Quad Bilateral Switch DIP Specifications. The CDBC is a quad bilateral switch intended for the transmission or multiplexing of analog or digital signals. The really functions as an analog switch. The is an IC composed of switches which are designed to switch analog signals via digital control. What this. Is the equivalent to four independently controllable relays, where one relay switches on the pair X1,Y1?-Is this the purpose of this IC?.

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Water level indicator helps you to measure the level of water. This indicator circuit based on 5 switches. What if I don’t use these switches but to use wires instead?

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What is water level indicator: Water level indicator is a device which is used to measure the level of water or any other conductive liquid in a container. By following a very simple circuit this device can be implemented. Along with icc the water level it will also give you a alarm when the tank becomes full.

This device works simply by closing the circuit with the conductivity of liquid. As you see in below given circuit when the container will be empty the circuit will be dd4066 hence the resistor implemented will makes the switch open and hence LED will go off.

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Similarly when liquid will comes up to the first installed probe it will close the circuit between base probe and first probe so the LED will glow on indicating the water level. When the tank got full the base of the transistor will go high which actually will saturate the transistor and the SPST switch will go on and alarming the buzzer.


This will makes your pump on and off according to water in your tank. Lewis falkner June 28, at 4: Anonymous March 3, at 1: Anonymous April 30, at 1: Anonymous April 30, at Anonymous April 30, at 8: Anonymous June 21, at 9: Newer Post Older Post Home. Categories tips and tricks projects phones blogger tips android computers hacking review seminar apps software gaming health. Subscribe us by email Enter your email address: