ICE3BR1765J

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The ICE3BR1765J is a highly integrated, cost-effective 3-phase Brushless DC Motor driver/controller IC that is suitable for AC/DC offline applications. It is specially designed for applications such as air-conditioners, ventilation systems, disk drives, and other industrial appliances where low noise and low-cost solutions are important. This article will discuss the application field and working principle of the ICE3BR1765J.

Overview

The ICE3BR1765J integrates all the necessary components for three-phase motor control in a single cost-effective package, making it an ideal choice for AC/DC offline applications. The IC is equipped with one Pulse Width Modulated (PWM) bridgeless control circuit, one Over Current Protection circuit, three H-Bridge circuits, one Line Regenerative circuit, one Pulse Sensor circuit, and a Sine Wave Slope Generator circuit. This core set of features enables the ICE3BR1765J to provide complete and accurate control over the whole motor operation, while also providing superior performance compared to other 3-phase Brushless DC Motor driver/controllers.

Application Field

The ICE3BR1765J is suitable for many AC/DC offline applications such as air-conditioners, ventilation systems, disk drives, and other industrial appliances. It is suitable for use in applications where low-cost and low-noise solutions are important. The IC is also suitable for use in start-stop applications where short-time starting current is needed and efficiency is important.

Working Principle

The ICE3BR1765J operates with a PWM bridgeless control circuit in the core of the IC. This PWM circuit allows for precise control of the motor’s speed and torque. The PWM circuit is connected to an Over Current Protection circuit, allowing the IC to regulate its own current consumption, ensuring efficient operation. Additionally, the PWM control circuit is connected to the Line Regenerative circuit, which allows for the IC to capture and store energy from the motor’s operation, increasing the overall efficiency of the IC.

The PWM bridgeless control circuit is also connected to the H-Bridge circuits, which provide the necessary power to the motor during operation. The three-phase H-Bridge circuits provide the most efficient method of power delivery, which reduces losses due to switching cycles. Finally, the motor is connected to the Pulse Sensor circuit and the Sine Wave Slope Generator circuit. The Pulse Sensor circuit creates the necessary signal for the Sine Wave Slope Generator circuit to create the exact frequency for the motor to operate at, increasing efficiency and reducing noise.

Conclusion

The ICE3BR1765J is a highly integrated, cost-effective 3-phase Brushless DC Motor driver/controller IC that is suitable for AC/DC offline applications. It is equipped with a set of features such as a Pulse Width Modulated (PWM) bridgeless control circuit, an Over Current Protection circuit, three H-Bridge circuits, a Line Regenerative circuit, a Pulse Sensor circuit, and a Sine Wave Slope Generator circuit, allowing for precise control over the motor’s speed and torque, and flexible control over the motor’s power consumption and efficiency. The ICE3BR1765J is an ideal solution for applications such as air-conditioners, ventilation systems, disk drives, and other industrial appliances, where low noise and low-cost solutions are important.

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