What is an inductive load circuit?
Reactive/Inductive Load – An inductive load converts current into a magnetic field. Inductive reactance resists the change to current, causing the circuit current to lag voltage. Examples of devices producing reactive/inductive loads include motors, transformers and chokes.
How can you prevent an inductive load from damaging your power supply?
To prevent damage to the power supply from inductive voltage kickback, connect an anti-parallel diode (rated at greater than the supply’s output voltage and current) across the output. Connect the cathode to the positive output and the anode to return.
What is an inductive load appliance?
Any devices or equipment that have coils in them are inductive in nature. Examples of inductive load are motors, solenoids, contactor coils, compressors, speakers, relays, transformers, inductors, power generators, etc.
What happens when you turn off an inductive load?
When you turn off the power, the current quickly drops to zero and no damage is done. Inductive loads are another matter. If you’re using a DC power supply to power DC motors, solenoids, fans, relays and other inductive loads, you need some kind of circuit protection.
Can an inductive load damage a DC power supply?
If you’re using a DC power supply to power DC motors, solenoids, fans, relays and other inductive loads, you need some kind of circuit protection. Without this protection, your power supply can be damaged by high voltage spikes from these devices. Figure 1 shows an inductive load connected to a DC power supply.
What is an inductive load in an electrical circuit?
An inductive load is a part of an electrical circuit that uses magnetic energy to produce work. Most electrical appliances, motors, and other devices can be classified as either inductive or reductive, and this usually has to do with how they absorb and process energy.
How does the diode work in an inductive load?
When the power is switched off, the diode dissipates the power surge by providing a one-way electrical path across the inductor. It will dissipate electrical power until the electromagnetic field collapses or until the power surge current is insufficient to activate the diode.