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What is PFC in SMPS?
One “component” in the quest for improved energy efficiency and power quality is the use of active harmonic filter power factor correction (PFC) in switched-mode power supplies (SMPSs) for computing and industrial applications. …
How do I create a PFC?
Power Factor Correction (PFC) shapes the input current of the power supply to be in synchronization with the mains voltage, in order to maximize the real power drawn from the mains. In a perfect PFC circuit, the input current follows the input voltage as a pure resistor, without any input current harmonics.
Why is PFC required for SMPS?
The addition of the PFC represents another switching stage in the system, meaning that larger amount of high frequency noise is applied to the mains than with a conventional rectifier/capacitor front end, and so additional RFI filtering is required.
How does a PFC circuit work?
The PFC circuit is to shape the input current to be the same phase with the input voltage, and the maximum real power drawn from the mains. The active PFC circuit control the DC bus voltage independent of the input voltage. So the energy store in the back capacitor does not decrease with the input voltage decrease.
What is Active PFC compatible?
A feature of UPS systems that delivers sine wave output to prevent unexpected shutdowns or component stress for connected devices with Active PFC power supplies.
What is PFC function?
PFC (power factor correction; also known as power factor controller) is a feature included in some computer and other power supply boxes that reduces the amount of reactive power generated by a computer. Reactive power operates at right angles to true power and energizes the magnetic field.
What is SMPS circuit?
A switched-mode power supply (SMPS) is an electronic circuit that converts power using switching devices that are turned on and off at high frequencies, and storage components such as inductors or capacitors to supply power when the switching device is in its non-conduction state.
What is a PFC stage?
A power factor correction (PFC) circuit intentionally shapes the input current to be in phase with the instantaneous line voltage and minimizes the total apparent power consumed. While this is advantageous to utility companies, a PFC circuit also provides benefits in end applications.
What is PFC sinewave UPS?
A mini-tower UPS with line interactive topology, the CyberPower PFC Sinewave provides battery backup (using sine wave output) and surge protection for desktop computers, workstations, networking devices, and home entertainment systems.
Are UPS pure sine wave?
The UPS provides pure sine wave to meet the requirement of the equipment, enhancing system efficiency and saving electricity costs.