What is the purpose of overvoltage protection?
Over voltage protection is a power supply feature which shuts down the supply, or clamps the output, when the voltage exceeds a preset level. Most power supplies use an over-voltage protection circuit to prevent damage to the electronic components.
How do you protect a circuit from High voltage?
In order to protect the circuit from overvoltage conditions, Zener diodes are often the first option. A Zener diode follows the same diode theory, which blocks the current flow in the reverse direction.
What is the need for protection circuits?
Why are circuit protective devices important? Protective devices are important because they ensure that under fault conditions, a high fault current cannot flow – as well as protecting the installation this, more importantly, ensures that consumers are not injured or killed as a result of an electrical fault.
What is the purpose of a circuit protection device?
The circuit protection device is an electrical device used for preventing an unnecessary amount of current otherwise a short circuit.
How can I protect my circuit from short circuit?
There are lot of ways to protect circuit from short-circuit and many types of fuses are available for overload protection. We are going to design and study a simple low voltage Short-circuit protection circuit for DC voltage.
Can a fuse be used to protect an overvoltage circuit?
The simplest way is to connect a fuse at the input supply side. But, the disadvantage of using a fuse is that it is one-time protection, because as the voltage exceeds the pre-set value, the fuse wire burns up, causing the circuit to open.
How is a fuse breaker a short circuit protection circuit?
In such condition circuit breaker or fuse disconnects the main supply to the house. A fuse breaker circuit is also a form of short-circuit protection circuit, in which a low resistance wire is used which melts and disconnects the main power supply to house whenever there is excess current pass through it.