DF36024FXV

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DF36024FXV is a monolithically integrated island type integrated full-controlled AC sine wave rectifier, specially developed for permanent magnet synchronous/asynchronous motor drive applications. It contains all the necessary components to sense the alternating current input voltage and generate a sine wave output voltage, which can be used to control or drive the electric motor. It is widely used in applications such as robot joint drive, washing machine, air conditioning, drilling machine and air pump, etc.

Application fields

DF36024FXV is mainly used for controlling asynchronous or permanent magnet synchronous motors for the following application areas:

• Industrial Automation: With its control and drive capability, the DF36024FXV allows precise and smooth control of asynchronous motors in industrial automation equipments, such as CNC machines, robotic arms, and printing machines.
• Domestic Appliances: The DF36024FXV is an ideal motor control solution for domestic appliances such as washing machines, air conditioners, fans, and refrigerators, etc.
• Automotive: Since the DF36024FXV is designed to be able to supply output power up to 3kW, it is suitable for controlling PMSMs used in automotive applications like power window motors, electric seat motors and wiper motors.

Working Principle

The DF36024FXV consists of a voltage rectifier, a power factor correction circuit, a switching converter, a protection circuit and an Anti-kickback circuit. The input AC voltage is first rectified by the rectifier unit to provide a DC voltage source. The voltage source is then processed by the power factor correction circuit to generate sinusoidal currents to drive the motor.

The switching converter is a three-phase pulse-width-modulated (PWM) voltage-controlled type. The converter is supplied with a reference signal from the power factor correction circuit, which helps it to regulate the output voltage. To prevent motor over-current and over-voltage, a protection circuit is incorporated in the DF36024FXV.

The motor is also protected from voltage reversal and short circuit through the Anti-kickback circuit. This circuit checks the motor current at each switching signal, and disconnects the converter output when the current reaches a predetermined level.

Conclusion

DF36024FXV is an island type integrated full-controlled AC sine wave rectifier. It is mainly used to control asynchronous or permanent magnet synchronous motors for industrial automation, domestic appliances and automotive applications. Its working principle is to first rectify the input AC voltage, then the voltage source is processed by the power factor correction circuit to generate sinusoidal currents to drive the motor. It also has protection circuits to prevent motor over-current and over-voltage, and an Anti-kickback circuit to protect it from voltage reversal and short circuit.

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