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.
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
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.
Battle-hardened veterans of the electronics industry have heard of the “connected car” so often that they assume it’s a done deal. But do we really know what it takes to get a car connected and what its future entails? Join EE Times editor Junko Yoshida as she moderates a panel of movers and shakers in the connected car business. Executives from Cisco, Siemens and NXP will share ideas, plans and hopes for connected cars and their future. After the first 30 minutes of the radio show, our listeners will have the opportunity to ask questions via live online chat.