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Tag Archives: motor control

Microcontroller, CAN and gate drivers on one IC for motor mosfets

Microchip-integrated-motor-driver-block

Microchip is aiming at motor control by combining a triple half-bridge mosfet gate driver, a 100MHz processor and CAN FD transceivers in the same IC. Other members of the family offer LIN transceivers instead of CAN, or a CAN interface without transceivers, or no CAN or LIN, and a base model has a 70MHz processor. Some have SENT interfaces for ...

One I missed: led driver repurposed for 16 servos

NXP PCA9685 I2C pwm IC

I was looking at the electronics behind the little Petoi dog robot (right), and noticed a chip I was not aware of before, NXP’s PCA9685. On a deeper delve, I noticed Adafruit also uses it for creating the classic 1.0 – 2.0ms pulses that tell hobby servos where to position. It has an I2C input, and can create up to ...

Automotive motor drivers have Cortex-M3 and CAN-FD

Infineon TLE989x motor driver app

Infineon Technologies is aiming at automotive motors with driver ICs that combines gate drivers, a 60MHz Arm Cortex-M3 microcontroller, a 2Mbit/s CAN (FD) interface, a UART with LIN support, and motor current and voltage sensing. TLE988x are two-phase (H-bridge) devices TLE989x are three-phase devices “The ICs are AEC Q-100 qualified, making them ideal for automotive brushed dc and brushless dc ...

Toshiba second-sources four 50V motor drivers

Toshiba TB67S581 motor driver

Toshiba has introduced four 50V motor drive ICs that are “drop-in compatible with popular devices”, it said. The technology is BiCD, with Dmosfet output transistors. TB67S581FNG (2.5A output) and the TB67S580FNG (1.6A output) are two-phase bipolar stepping motor drivers. TB67H481FNG (PWM input) and TB67H480FNG (phase-enable inputs) are constant-current (up to 2.5A) dual H-bridge drivers for dc brushed motors or bipolar ...

Renesas and Nidec put inverter, on-board charger, and more, into vehicle motor-gearbox

Nidec 2018 e-axle

Renesas Electronics has teamed up with electric motor maker Nidec to develop a 6-in-1 e-axle for electric vehicles. E-axles combine motor, inverter and gearbox into one unit and, according to Renesas, are beginning to collect other power electronics functions such as dc-dc converters and on-board chargers to form a convenient package for car makers to integrate – an idea dubbed ...

Oriental Motors introduces vector control for small dc brushless motors

Oriental motor BLH motor drive combination

Oriental Motors has introduced sinewave drive vector controllers for its 30 and 50W brushless dc motors, improving speed tracking, reducing audible noise, increasing peak torque (15% for 30W types and 20% for 50W) and adding functions compared with the earlier BLH series of squarewave controllers. The new controllers are called BLH2D (in photo right). “Adopting vector control as the motor ...

Embedded World: Harvesting NFC receiver for smart things

Infineon NGC1081 NFC receiver thermostat example

Infineon has created an IC to embedded in things that need to be controlled by a near-by mobile phone, which has in-built sensing and a motor driver. “Potential applications range from medical patches and disposable point-of-case testers, to data loggers, smart thermostats, smart locks and sensor inlays,” according to the company. Called NGC1081, the IC can be temporarily powered by ...

Automotive brushless dc motor driver supports ASIL-D

Toshiba-gate-driver-ic-for-automotive-three-phase-brushless-motors-300x200.jpg

Toshiba has introduced a brushless dc motor driver that supports ASIL-D for functional safety in vehicles. Designed in accordance with ISO 26262 (2nd edition) and AEC-Q100-qualified, TB9083FTG is aimed at electric power steering, electric braking and shift-by-wire transmissions. “A built-in fail-safe safety relay pre-driver complements the three-phase pre-driver,” according to the company, and the “SPI communication interface features an integrated ...