Miniature Drive

Miniature Drive

 

an electric drive in which the actuating electric motor has a power of up to about 500 watts. It is used in automatic equipment, motion-picture and radio apparatus, and household electrical appliances. A distinction is made between AC and DC miniature drives. In DC drives, magnetic and transistor amplifiers are used as regulators, and in reversible drives, push-pull magnetic amplifiers with internal feedback are used.

In AC drives the actuating electric motor is controlled by magnetic and magnetic-semiconductor amplifiers, and also by transistor and thyristor frequency converters. In this case the speed of the electric motor is regulated by changing the amplitude and frequency of the voltage on the stator winding. The required stiffness of the electric motor’s speed-torque characteristic is obtained by the introduction of feedback for the rate of rotation.

REFERENCE

Aven, O. I., and S. M. Domanitskii. Beskontaktnye ispolniteVnye ustroistva promyshlennoi avtomatiki. Moscow-Leningrad, 1960.
References in periodicals archive ?
* Miniature bearing assemblies, motor mounts, flexures, spring preloads, and miniature drive electronics
The hexapod system incorporates six piezoelectric SQUIGGLE micro motors, miniature bearing assemblies, motor mounts, flexures, spring preloads and miniature drive electronics.
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For 1.0-inch disk drives -- the most popular miniature drive size on the market -- Agere's SC1200 can enable more than 12 gigabytes of storage, a 3x improvement over today's flash memory.
Space savings is a critical requirement in these miniature drive designs, and Agere's SC1200 offers a 30 percent reduction in die size compared to Agere's previous-generation SoC design.
"Miniature drives using our TrueStore CE chip can deliver gigabytes in the double digits, enabling portable devices to store feature-length movies, video games and other applications not economically possible using flash."
Space savings is a critical requirement in these miniature drive designs, and Agere's TrueStore CE chip set is optimized for low component count and reduced total board space.
The addition of production-proven disk controller capabilities for miniature drives enables Agere to provide standard-product or reference-code storage SoCs, which integrate read-channel, disk controller, memory and other functions into a single silicon system.
Disassembly field device such as sensors and miniature drives (surface mounting) 60 St.
These two miniature drives are designed to meet the accelerating demand for ultra-portable handheld devices (such as mobile phones and digital music players), which are requiring more and more storage capacity.

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