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Content tagged with Semiconductors posted in December 2004
<<   <   Page 4 / 4
Implementing a 3-Phase Brushless Direct Current Motor Drive
News & Analysis  
12/2/2004   Post a comment
Brushless dc motors have a straight-line, speed-torque curve similar to that of their mechanically commutated counterparts. BLDC motor internals consist of a multi-pole permanent magnet rotor and a stator with multiple coils linked together using a triangle or star connection. Cypress engineers offer the sequencing codes for driving brushless motors with Hall Effect sensors and an analog controller.
Companies rally around IBM's Power architecture
News & Analysis  
12/2/2004   Post a comment
Fifteen companies, including chip designers and manufacturers, unveiled an open standards initiative centering on the Power microprocessor architecture.
Designing external cabling for low EMI radiation
News & Analysis  
12/2/2004   Post a comment
The advent of equalizer circuits that compensate for cable loss allows systems to send high-speed data over very long copper cables. The use of integrated circuits for equalization of cable loss has enabled a major reduction in the cost of interconnects for communications systems. For optimum performance, such systems must minimize any radiated emissions from the cables and connectors. A Maxim engineer offers this assessment of EMI reduction techniques, including coax, twisted pair cabling and e
Fairchild expects to meet guidance, appoints new exec
News & Analysis  
12/1/2004   Post a comment
Fairchild Semiconductor announced Wednesday (Dec. 1) that improving order rates will lift the company's fourth quarter sales to the higher end of its previous guidance of down 5 to 10 percent sequentially.
Digitally set DC/DCs boost portables
Product News  
12/1/2004   Post a comment
San Jose, Calif. - Summit Microelectronics bills its SMB120 nine-channel DC/DC converter/controller as the first power-with-power-management IC for portable applications that's digitally programmable.
Attenuators pin down handset and infrastructure applications
Product News  
12/1/2004   Post a comment
M/A-COM announces a series of PIN diode voltage variable attenuators optimized for lower loss and higher linearity than FET devices.
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