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New ICs will make appliances more efficient

Integrated circuits aimed at managing motors and power supplies may help boost the efficiency of such consumer goods as air conditioners, washer/dryers, refrigerators, and video games. Permanent-magnet synchronous motors are beginning to replace split-phase induction motors in appliances as a means of boosting efficiency while reducing part costs. PM synchronous motors work at variable speeds and may become part of the appliance structure itself, perhaps eliminating the need for separate gearboxes and belt drives used to harness power from induction motors. New International Rectifier chips are designed specifically to control PMS motors in split-system-type air-conditioning units. in El Segundo, Calif., says it has devised special interface chips for appliances and switching power supplies that will facilitate use of advanced
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Products & Services
Motor Controllers
Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors. They include a power supply, amplifier, user interface, and position control circuitry.
Linear Motors
Linear motors generate force only in the direction of travel. They are capable of extremely high speeds, quick acceleration, and accurate positioning.
Brushless Motors
Brushless motors are synchronous electric motors that have a magnetically (AC induction) or electronically (DC) controlled commutation system instead of a brush-based mechanical commutation system.
Electronic Cooling Fans
Electronic cooling fans move air to cool electronic devices.
AC Motors
AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.  
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Topics of Interest

Through legislative and social pressures, public attention is focusing more on the energy used to perform basic domestic functions such as food preparation, cleaning, and climate control.

Permanent-magnet synchronous motors eliminate gearboxes. Vice President and General Manager Industrial applications requiring high torque at low speeds typically use synchronous motors with reducers.

Single-phase induction motors are extensively used in appliances and industrial controls. The Permanent Split Capacitor (PSC) single-phase induction motor is the simplest and most widely used motor...

Introduction The squirrel cage induction motor is probably the most widely used motor in industry today. Traditional applications for AC induction motors include fans and pumps. The AC induction...

A quest for energy efficiency has fostered development of switched reluctance motors that are inherently simple and can supply variable speeds. They can be more efficient than induction motors and...