Over Voltage Low High Voltage Cutoff Circuit Diagram

Juliet 8 years ago plzzzzz tell me the size of the auto transformer to be used and i didnt get what is no n where exactly the appliance to be checked should be kept kind request to you to send me all the details of working.

Over voltage low high voltage cutoff circuit diagram.

This voltage sensor circuit can be used to protects any appliance to voltage fluctuation. High and low voltage cutoff with delay and alarm principle. Low voltage cut off op amp figure 2 shows the use of very common and easily available op amp 741 as a comparator. When supply voltage is high the dc voltage at the cathode of zener diode d4 becomes greater than 5 6v.

In particular if the voltage of the motor is lower the coils of it can be a burn. In this way it ensures total safety to the home wiring and appliances from fire electrical due to abnormal over voltages or brown out low voltages. When too much voltage 220v and protection when pressure is too low with using the relay cut off power when voltage problems. When the input voltage goes high then the relay will be activated and also when the input voltage is below then required level then relay activated.

There are many things which can be done to take proper care and protect your rechargeable batteries which are not over charge. Over voltage and under voltage protection circuit for high and low voltage cutoff. As a result transistor q1 is in on and transistor q2 gets switched off. An ac mains high low cut off device will cut off or disconnect the mains supply from home electrical whenever a high voltage or low voltage situation is detected.

Before using this circuit set the preset and check the relay or output to at which input voltage level relay gets activated. So it helps to protect the circuit damage by the high voltage. Rechargeable batteries deliver very good performance and life if we take care of them. The op amp is available in to 5 and dip type packing.

As shown in the circuit diagram a couple of transistor stages are integrated together along with an output relay which is able to perform the function of super safe voltage guard equipment. High voltage low voltage cut off circuit. If you use this circuit for autocut on over 6v then use 6 v relay and circuit need 6v. Plzz tell me the high low voltage cutoff with delay and alarm with some modification and advancement in circuit diagram.

As explained above the transistors sense the presence of the dangerous voltage levels respectively and activate.