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What can cause voltage spikes?
Voltage spikes, also known as surges, may be created by a rapid buildup or decay of a magnetic field, which may induce energy into the associated circuit.
Is a DC power source a battery?
When comparing the difference between AC power and DC power sources, consider whether the electricity comes from a battery or an outlet. Most outlets supply AC power, whereas batteries are the most common source of DC power.
What causes alternator to spike?
The field winding of an alternator has a large inductance. When the vehicle battery is being charged, the alternator generates a large current, the magnitude of which is controlled by the current in the field winding. All the loads connected to the alternator see this high voltage spike.
Why do you need a DC power supply for a battery?
All that is needed to recharge battery cells is DC current. With DC current, electrons will flow back into the battery, establishing the electric potential, or voltage, that a battery was meant to have when it’s fully charged. A DC Power Supply is needed that allows for adjustable voltage and current.
Which is the most common source of DC voltage?
Perhaps the most familiar source of DC voltage is a battery. A battery is a device that converts chemical energy into electrical energy; it provides a voltage that doesn’t change rapidly or reverse polarity, but the voltage gradually decreases as the battery is discharged.
What are the limitations of an AC / DC power supply?
Another limitation of linear AC/DC power supplies is the high-power voltage regulation. A linear AC/DC power supply uses linear regulators to maintain a constant voltage at the output. These linear regulators dissipate any extra energy in the form of heat. For low power, does not pose much of a problem.
Why do you need over voltage protection on a power supply?
Over-voltage Protection for Power Supplies Power supply over-voltage protection is really useful – some PSU failures can put damaging large voltages on the equipment. Over-voltage protection prevents this happening on both linear regulators and switch mode power supplies.