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Single-Phase 220V to 380V Boost Inverter: Working Principle Explained
2025-04-28
The general inverter is a power control device that applies the principles of frequency conversion technology and microelectronics technology. It controls the power control equipment of the AC motor by changing the frequency of the motor's working power supply. It converts the industrial frequency AC power with fixed voltage and frequency into AC power with variable voltage or frequency.

Working Principle Explained
Its working process is to first convert the industrial frequency AC power into DC power through a rectifier, and then convert the DC power into AC power with controllable frequency and voltage to supply the motor.
The boost inverter converts the industrial frequency AC 220V power into DC power through a rectifier (double voltage rectification) on the basis of the ordinary inverter, and then converts the DC power into a three-phase 380V AC power with controllable frequency and voltage to supply the motor.
This method does not boost the voltage through a transformer, but only boosts the voltage through a rectifier boost circuit, which greatly reduces the size and weight of the inverter. Compared with the booster, the cost is also lower.
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