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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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Intelligent Phase Control Technology

Intelligent Phase Control

Intelligent Phase Control is Toshiba’s original motor control technology capable of saving power easily. 
By automatically adjusting voltage and current phases during brushless motor operation, it eliminates complicated adjustments with software and realizes high efficiency drive.  

Drawbacks of conventional technology

Description of an Auto Lead Angle Control Technology

To optimize motor efficiency, the lead angle must be adjusted using actual equipment although it is controlled based on the information on rotor positions from Hall sensors.

The lead angle must also be adjusted according to the motor constants, rpm and other factors even when a motor controller/driver has an auto lead angle control function. Therefore, there has been a need for an improved control method that reduces burdens on users.

Advantages of Intelligent Phase Control

Intelligent Phase Control detects the motor current phase and feeds back the information for auto lead angle control. When a motor application has a sensor, the phase of the Hall signal is automatically adjusted to match that of the motor drive current.

High efficiency is achieved regardless of the rpm, load torque and power supply voltage of a motor. Intelligent Phase Control also helps reduce the number of external parts necessary for lead angle adjustment. 

Auto lead control technology realizing high efficiency with a simple configuration

Example: At 3,000 rpm, Intelligent Phase Control reduces supply current by approx. 10%, compared with the conventional fixed lead angle control (benchmarked by Toshiba).

Simply configurable auto lead angle control

Reduces the number of external components necessary for lead angle control and eliminates the need for any programming according to the changing operating states of a motor

  Motor Efficiency Ease of Programming Support for Various Types of Motors Part Count Drawback
Fixed lead angle control Poor Poor Poor Moderate Changes in the rpm of a motor make the adjustment point shift, making it impossible to achieve optimal efficiency.
Lead angle must be adjusted for each type of motor.
Auto lead angle control using conventional technology Moderate Moderate Moderate Poor
Intelligent Phase Control Excellent Excellent Excellent Excellent -

Evolving Intelligent Phase Control technology

Evolving Intelligent Phase Control technology
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