FET pre-driver for motor control
6 February 2008
Analogue, Mixed Signal, LSI
Freescale has introduced a versatile field effect transistor (FET) pre-driver designed for three-phase motor control in a wide range of automotive and industrial control applications.
The MC33927 provides a cost-effective, comprehensive solution for cooling fans, water pumps, fuel pumps, and electro-hydraulic and electric power steering used in automobiles, electric scooters and electric-assist bicycles. These applications require synchronous and asynchronous three-phase motors to combine high output performance, high reliability and small size for space-constrained designs.
Based on Freescale's SMARTMOS technology, the MC33927 integrates features such as support of the entire automotive range from 6 V to 58 V, programmable dead time delay, pulse width modulation from 0% to 100% control of the load for increased motor efficiency and control, and extensive diagnostic and self protection capabilities.
The device's logic interfaces easily with the latest 3 V systems, as well as established 5 V platforms. The MC33927 interfaces an MCU via six direct input control signals, a serial peripheral interface (SPI) port for device setup, and asynchronous reset, enable and interrupt signals.
The device is designed to enable precision control of motor speed, torque and power. The phase control logic prevents both high-side and low-side FETs from conducting simultaneously and has a programmable dead-time from 0 μs to more than 10,5 μs. This complementary phase control logic can be turned off for explicit control of each driver, a desirable feature for switched reluctance applications.
Further reading:
Smart IMU for high/low-g acceleration
Altron Arrow
Analogue, Mixed Signal, LSI
The ISM6HG256X is a 6-axis intelligent inertial measurement unit that enables smart motion sensing, edge computing, and real-time awareness.
Read more...
Compact Schottky diodes increase efficiency
RS South Africa
Analogue, Mixed Signal, LSI
Gen 3 SiC Schottky diodes from Vishay in the compact SlimSMA HV package increase efficiency while enhancing electrical insulation.
Read more...
Silanna launches Plural ADC EVKs
Analogue, Mixed Signal, LSI
Silanna Semiconductor has released its first evaluation kits for the Plural data converter family to offer the fastest, most cost-effective way to evaluate and deploy high-performance ADCs.
Read more...
High speed, low noise 2 A driver
iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM8423-2A from SGMICRO is a high efficiency, class AB, low distortion power line driver optimised to accept a signal from a Power Line Carrier modem.
Read more...
Online sensor technology hub
Analogue, Mixed Signal, LSI
Mouser’s sensor content hub offers an extensive collection of articles, blogs, eBooks, and product information from its technical experts and leading manufacturing partners.
Read more...
Ultra-low power MEMS accelerometer
Altron Arrow
Analogue, Mixed Signal, LSI
Analog Devices’ ADXL366 is an ultra-low power, 3-axis MEMS accelerometer that consumes only 0,96 µA at a 100 Hz output data rate and 191 nA when in motion-triggered wake-up mode.
Read more...
BT Audio 4 Click board
Dizzy Enterprises
Analogue, Mixed Signal, LSI
The BT Audio 4 Click board from MIKROE provides high-quality wireless audio streaming and data comms over Bluetooth.
Read more...
Precision MEMS IMU modules
Altron Arrow
Analogue, Mixed Signal, LSI
The ADIS16575/ADIS16576/ADIS16577 from Analog Devices are precision, MEMS IMUs that includes a triaxial gyroscope and a triaxial accelerometer.
Read more...
MEMS with embedded AI processing
Altron Arrow
Analogue, Mixed Signal, LSI
STMicroelectronics has announced an inertial measurement unit that combines sensors tuned for activity tracking and high-g impact measurement into a single, space-saving package.
Read more...
High-performance IMU
RS South Africa
Analogue, Mixed Signal, LSI
TDK Corporation has announced availability of the new InvenSense SmartMotion ICM-536xx family of high-performance 6-axis IMUs.
Read more...
printer friendly version