Microncontrollers take control of motors

Sunrise Electronics has a range of microcontrollers from NEC combining powerful CPU cores with onboard features that make them ideal for motor control and inverter applications.

Sunrise Electronics has a range of microcontrollers from NEC combining powerful CPU cores with onboard features that make them ideal for motor control and inverter applications.

Motor control is a specialist area requiring additional timing and control functions as well as specific types of data processing.

Last year Sunrise introduced the uPD789841 and 2, new members of NEC's successful low-power 78K0S family developed to provide the key features needed in motor control applications.

Now Sunrise has added new family members in NEC's successful 78K0 range of 8bit microcontrollers integrating CPU, ROM, RAM and a large number of peripheral functions on chip, and ideally suited to motor control.

The uPD78098x family of devices are excellent at controlling three-phase asynchronous motors or brushless DC motors.

Typical applications are fans, pumps, door openers or home appliances such as washing machines.

Because of the broad range of on-chip peripherals they are also used in complex industrial control applications.

Features of these devices include on chip mask or Flash ROM options and the ability to use additional external memory.

Ports include multiple I/O pins, three serial interfaces and PWM control signals.

Internal resources include eight-channel 10bit A/D conversion, multiple counter timers including general-purpose interval timers, inverter control timer and watchdog timer plus a multichannel interrupt controller.

For even more complex applications Sunrise offer several new devices in the V850 RISC family that match the performance gains attainable with RISC-based controllers to the needs of embedded control applications.

The V850 CPU offers easy pipeline handling and programming, resulting in compact code size comparable with standard 16bit CPUs.

The uPD703116 is a single-chip microcontroller in NEC's 32bit RISC V850 family, designed to meet the requirements of tomorrow's automotive and industrial applications.

It is based on NEC's enhanced V850E CPU core.

The uPD703116 combines CPU, ROM and RAM with powerful peripherals and a Full-CAN interface in one chip.

It is optimised for inverter control applications and can control two three-phase motors at the same time.

Key application fields are automotive electronic power steering and hybrid electric vehicles, but it is also an excellent solution in industrial high-end inverters and motor controls.

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