Manikandan K J ⁽⁴⁾

Automatic water level controllers regulate the water supply for a given reservoir/tank to maintain a minimum water level. This water level controller circuit uses a float switch to control the water level of the storage tank. It is an automatic system, so it will start to…

Water level controller is necessary for many reasons. Water level can be monitored and controlled automatically without any human intervention. Thus, it saves water wastage, electricity and time. This can be used both in industries and houses. The circuit I am going to share in…

Circuit Diagram Parts Required DB1 - W04 or Db107 (Bridge Rectifier) 9V to 18V AC - Step Down Transformer, 200 to 500mA Capacitor: C1 - 220uf / 40V C2 - 0.001uF (ceramic or polyester) - 102 Diode: IN4007 Resistor: (All 1/4W) R1, R5 - 4.7K…

This is a very simple circuit built using only a few components to detect ac mains power failure and its resumption. The heart of the circuit is the most popular timer Ic 555 which is wired as monostable multivibrator. ac power supply failure alarm circuit…