-
My ToshibaSemicon
- General Top View
-
SEMICONDUCTOR View
-
ApplicationsAutomotive
Body Electronics
xEV
In-Vehicle Infotainment
Advanced Driver-Assistance Systems (ADAS)
Chassis
IndustrialInfrastructure
BEMS/HEMS
Factory Automation
Commercial Equipment
Consumer/PersonalIoT Equipment
Healthcare
Wearable Device
Mobile
Computer Peripherals
-
Products
Products
-
Design & Development
-
Knowledge
Knowledge
- Where To Buy View
-
My ToshibaSemicon
-
- STORAGE View
- COMPANY View
- Part Number Search
- Cross Reference Search
- Keyword Search
- Parametric Search
- Stock Check & Purchase
This webpage doesn't work with Internet Explorer. Please use the latest version of Google Chrome, Microsoft Edge, Mozilla Firefox or Safari.
require 3 characters or more.
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.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
require 3 characters or more.
What is a Sine-Wave Drive?
Sine-wave drive rotates the rotor by continuously changing the voltage of the stator coil sinusoidally in accordance with the rotation angle of the rotor.
The three phases for the motor are “delayed” by a specific amount of time, depending on the frequency.
It is more efficient, creates less vibration and less noise than the square-wave drive.
Rotor position detection is required for control.
Normally, three position sensors are used to detect the position every 60 degrees, the rotor position is estimated in real time, and a sine-wave voltage that meets to the rotor position is output.
An inverter circuit is used to drive the motor, and the voltage is continuously changed by PWM control.
If you have a sine-wave of 1Hz, it takes one second to “play” this sine-wave. If you have a second wave “shifted by 120 degrees”, this second wave will start exactly 0.33 seconds after the first, which is one third of complete time. The third wave will start shifted once again by 120 degrees, meaning 0.66 seconds after the first wave started.
This is required to control the three phases U, V and W of the BLDC motor at the right time.
Depending on the time sequence of the three phases, the motor will turn clockwise or counter clockwise.
- Prev
- 8/8
