12v Over Voltage Protection Circuit

In this project we will build a simple yet effective overvoltage protection circuit using a fuse and a zener diode as the protecting elements that will work for electronics that.

12v over voltage protection circuit. When the voltage is less than the preset level the base terminal of the q2 is high and as it is a pnp transistor it turns off. Overvoltage protection circuit diagram working of overvoltage protection circuit. The over voltage protection circuit for automotive load dump shown in figure 1 is a perfect series disconnect or series cut of circuit which has been built to safeguard a switching regulator load that possessed an optimum input voltage of 24v. One is a constant 12v input for running the circuit.

And when q2 is in off condition the base terminal of q1 will be low and it allows the current to flow through it. In our previous protection circuit tutorials we have designed many basic protection circuits that can be adapted into your circuit namely over voltage protection short circuit protection reverse polarity protection etc. Generally fuse or mcb is used for overvoltage protection however in this project our aim is to make a circuit which can perform better than a fuse or mcb and overcome the. When voltage drop down to 180 volts this voltage as above will entered to diode rectifiers d1 d4.

In order to do that protection we will need an electronic protection circuit that will monitor the battery voltage and prevent it from overcharging and accordingly overdischarging in this episode we will concentrate on discharge protection normally a 12v battery has to be charged between 13 5v and 14 4v and do not exceed 10 5v when we. Adding to this list of circuits in this article we will learn how to design and build a simple. The circuit needs 2 input. Protection circuits are vital for any electronic design to be successful.

And another is a variable sense voltage. An overvoltage protection circuit is a circuit which protects electronics from excess voltage which could potentially damage or destroy electronic components. Over voltage protection circuit using zener diodes every circuit design operates at different voltage levels the most common voltage levels for a digital circuit are 3 3v 5v and 12v. Transient or persistent over voltage conditions that exceed an ic s absolute maximum voltage rating will permanently damage a device.

This variable voltage senses the voltage whether it is high or low. This is a basic circuit based upon dual comparator ic. Over and under voltage protection circuit diagram and will be output voltage of 9 5 volts. Few things about upper and lower voltage protection circuit.

Short circuit protection reverse polarity protection and over under voltage protection are some of the protection circuits that are used to protect any electronic appliance or circuit from any sudden mishappenings.