Glossary
Power Factor
Power factor is the ratio of actual AC input value when compared to power consumed by the various PSU system circuitry. Power supplies without PFC usually only [...]
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Power Factor Correction (PFC)
What is Power Factor Correction? The power factor correction is a technique of increasing the power factor of a power supply. Switching power supplies without [...]
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Peak Power
What is Peak Power? The peak power is the maximum power that the power supply can sustain for a short time and is sometimes called the peak surge power. The [...]
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Peak Current
The peak current is the maximum amount of current which an output is capable of sourcing for brief periods of time. When a power supply or an electrical device [...]
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Parallel Forced Sharing
What is Parallel Forced Sharing? Parallel forced sharing is a method of paralleling power supplies and using their combined current to generate a feedback [...]
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Over Voltage Protection
What is Over Voltage Protection? Over voltage protection is a power supply feature which shuts down the supply, or clamps the output, when the voltage exceeds a [...]
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Over Temperature Protection
What is over temperature protection? Over temperature protection in a power supply is a protection system that shuts down the power supply when the internal [...]
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Output Noise
What is Output Noise? The AC component that may be present on the DC output of a power supply. Switch-mode power supply output noise has two components: a lower [...]
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Output Impedance
What is Output Impedance? The output impedance is the ratio of change in output voltage to change in load current. Power supply input and output impedance are [...]
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Optoisolator
What is an Optoisolator? An optoisolator is an electronics device that transfers electrical energy from one circuit to another through a short optical [...]
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