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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
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What is a Square-Wave Drive?

What is a Square-Wave Drive?

Square-wave drive is the simplest drive method. It rotates a rotor by switching the ON/OFF state of the power element according to the rotation angle of the rotor and then changing the current direction of the stator coil.
When the rotor is rotated once, the current direction is switched 6 times.
This method is the same as the driving principle of a brushed DC motor.
The motor drive uses an inverter circuit to control the voltage with PWM.
It is the most widely used drive method for sensorless motors.

Chapter 3 Technical Explanation of Brushless Motor

Technical Explanation of a Brushless Motor
What is PWM?
What is an Inverter?
What is a Driver?
Position Detection by a Hall Sensor
Position Detection by an Induced Voltage
What is a Sine-Wave Drive?
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