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Brushless Motor Drivers

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Make Your Motor Smart

Due to the growing need for energy saving and quiet motor operation, brushless DC (BLDC) motors are widely used for a variety of applications.
To improve motor drive efficiency, a complicated process of lead angle adjustment is generally required. Toshiba's motor drive controllers with Intelligent Phase Control (InPAC) technology help to solve this problem and achieve optimal efficiency.

Motor Control Solutions For A Variety Of Applications

Automatic adjustment of the phase difference between a motor voltage and a motor current

Automatic adjustment of the phase difference between a motor voltage and a motor current

When a BLDC motor is driven with a sine wave, changes in the RPM of a motor due to the effect of its impedance cause a phase difference between its voltage and current, decreasing the drive efficiency. Therefore, phase adjustment is necessary to improve efficiency. Toshiba's Intelligent Phase Control (InPAC) technology compares the relationship between the current phase (current information) and the voltage phase (Hall-effect signal) and provides feedback to the motor current control signal in order to adjust their phase relationship automatically. As a result, InPAC provides high efficiency.

InPAC optimizes efficiency over the entire RPM range

InPAC optimizes efficiency over the entire RPM range

In order to achieve the highest efficiency using conventional technology, it is necessary to adjust a phase difference between the voltage and current of a motor at several points in its operating RPM range. In contrast, Toshiba's Intelligent Phase Control (InPAC) technology allows you to automatically adjust the phases of a motor's voltage and current and thereby achieve the highest efficiency across the entire operating RPM range only through initialization. Therefore, InPAC helps reduce your development workload.

Next-generation lead angle control technology Intelligent Phase Control (InPAC)

Leveraging sensorless drive and sine-wave drive technologies, Toshiba has been developing a broad array of brushless DC motor drivers ideal for applications that require low power consumption and silent operation.

Next-generation lead angle control technology Intelligent Phase Control (InPAC)

Product Lines

Product Lines: Brushless Motor Drivers

Brushless Motor Drivers

Brushless Motor Drivers Product Lineup

Auto lead control technology realizing high efficiency with a simple configuration

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

InPAC reduces supply current compared with the conventional

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
InPAC Excellent Excellent Excellent Excellent

Download a Reference Design with Intelligent Phase Control (InPAC)

With an eye to emerging needs, Toshiba has developed Intelligent Phase Control (InPAC) in response to accelerating social and technological trends. InPAC can be used without any need for complicated adjustment. Toshiba offers an extensive portfolio of BLDC motor drive controllers with InPAC suitable for various needs. If you want to evaluate your product plan or design using a BLDC motor incorporating InPAC, reference designs are available for download.

Bill Of Materials (BOM)
Bill Of Materials (BOM)

Circuit schematic
Circuit schematic

Gerber data
Gerber data

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.