Vijay Bolloju, International Rectifier   Traditionally, IGBTs have addressed applications requiring high-voltage and -current ratings and relatively slow switching frequencies. When the switching frequency is low, the inherently low conduction losses resulting from the device’s low VCE(on) (collector-to-emitter saturation voltage), which derive from the IGBT’s minority carrier operation, outweigh the poor switching performance, enabling high overall […]

HL-Planartechnik, part of Measurement Specialties Inc., introduced the TSEV01P digital infrared temperature sensor. The benefit of this OEM module is integration leading to a reduction of the outer dimensions of the sensor combined with a reduction of the power consumption. The sensor, housed in a TO metal can, provides an electronic voltage depending on the […]

QA Technology Co. announced the expansion of its integraMate hyperboloid contact and connector product family with the addition of 1.5 mm size contacts and a 3-pin power connector. The 1.5 mm size has a current rating in excess of 12A, and it incorporates a 12-wire hyperboloid cage. The core technology is a hyperboloid wire cage […]

V-Infinity, a division of CUI Inc, introduced a series of high density, medically approved open frame switching power supplies. The VMS-160 series outputs 160W with 200 LFM forced air cooling or 100W under convection-cooled conditions. This translates to a power density of 18 W/in³ in a 1U, industry standard, 2” x 4” footprint. The power […]

Taiyo Yuden introduced its LS6D0812A-RH low-profile DC/AC inverters for driving cold-cathode fluorescent lamps (CCFL) in liquid crystal display (LCD) backlighting applications. It is designed specifically for use with 10″ to 15″ industrial-grade LCD panels widely used in medical electronics, machine tools, digital signage, point-of-sale/kiosks, touch-screen and test and measurement equipment applications. The device provides dual […]

MtronPTI introduced a Stratum 3 precision TCXO/TCVCXO product family. The M610x Series is a fully Stratum 3 compliant product, and the M611x Series is a general purpose TCXO/TCVCXO, featuring ±0.3 ppm stability performance over the full industrial temperature range (-40°C to +85°C). Both product families are available in 3.0V, 3.3V and 5.0V versions in an […]

Why Power Factor Correction? Power factor is the ratio of the actual power used to the apparent (reactive) power that a piece of equipment draws from the alternating current (AC) line. The reactance of large capacitors or inductors can cause the apparent power drawn from the line to exceed the actual power used, resulting in […]

As a youngster I enjoyed wiring up circuits with knife switches, lamps, buzzers and large dry cells. While in high school I made frequent trips to surplus-electronics stores in New York City and ordered components from mail-order supply houses. My projects included a 4-bit binary adder — built from switches and relays — and a tic-tac-toe […]