1. The main difference between PFC power supplies and non-PFC power supplies is the way power factor correction (PFC) is implemented. FC power (PowerFactorCorrectionPowerSupply) refers to the active or passive power factor correction technology of power supply. These power supplies adjust the current waveform through components such as inductors, capacitors and special ics to compensate for the phase difference between current and voltage, thereby improving power utilization and reducing energy waste. The main advantages of PFC power supply are energy saving and environmental protection, which can reduce the load of the grid and improve the quality of electricity consumption.

2. The PFC power (Non - PowerFactorCorrectionPowerSupply) is not a power factor correction technology of power supply. There is a large phase difference between the input current and voltage of this type of power supply, resulting in a large loss of exchange power, low power utilization, and easy to cause energy waste.

PFC power supplies and non-PFC power supplies are mainly different in the following three aspects:

Concept: PFC power supply, also known as active PFC, is an advanced technology that can greatly reduce the standby power consumption of switching power supplies. Non-pfc power supply is relatively traditional, it only uses a simple switching circuit and a first-level rectifier output circuit.

Efficiency: When the PFC power supply is in the standby state, the input current is almost zero, so its power loss is very small, and the efficiency is higher than that of non-PFC power supplies. Under the same conditions, the efficiency of PFC power supply is higher than that of non-PFC power supply.

Application environment: Because PFC power supply has high efficiency and small power loss, its application scope is relatively wider. It is suitable for modern power supply systems that require high power, high quality, high reliability and high energy saving. Non-pfc power supplies are suitable for traditional PC power supplies that have strict requirements on cost and volume.

Generally speaking, the difference between PFC power supply and non-PFC power supply is that PFC power supply has power factor correction function, which can improve the power load to a certain extent. The non-PFC power supply does not have this function, so its power utilization is low, the energy waste is large, the impact on the grid load is large, and the power quality may be affected. In short: PFC power supply is more energy saving and environmental protection.

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