While the use of high-voltage DC (HVDC) results in lower transmission losses compared with high-voltage AC (HVAC), 5-6% losses for HVDC versus 8-10% for HVAC, the overall cost-justification for HVDC is more complicated. HVAC terminals are much less expensive than the power electronics-intensive HVDC terminals. But HVDC cabling can be less costly than an HVAC […]
Power Electronic Tips
Over a century of high voltage DC power transmission
Even though ac power transmission dominates as a result of its flexibility in delivering power to end users, dc power transmission has been used to send higher power levels over longer distances for over a century. The earliest high-voltage DC (HVDC) power transmission systems, starting in the 1890s and continuing through the 1930s, used the […]
ISO 26262-compliant motor drivers target EV systems
Allegro MicroSystems introduced the industry’s largest portfolio of 80V motor drivers for advanced 48V automotive systems. Allegro’s 48V products effectively address the critical need for flexible and reliable solutions in electric vehicles. Drawing on decades of experience, Allegro’s new suite of fully integrated gate drivers offer optimized architecture and performance directly impacting vehicle weight, battery/fuel […]
12 V optional now available for switching regulator series
RECOM Power has extended it’s highly efficient and economical R-78E series of switching regulators to include a 12V option compatible with TO-220 linear regulators. RECOM was one of the first companies in the industry to widely promote and manufacture high efficiency switching regulators modules to replace the discrete TO-220 packaged linear regulators with its 78-series. […]
Power converter output filter capacitors – Virtual Roundtable (part 2 of 2)
Hosted by Jeff Shepard, EE World has organized this “virtual roundtable” into “Power Converter Output Filter Capacitors” with Eduardo Drehmer (ED), Director of Marketing Film Capacitors & Power Quality Solutions with TDK Electronics, Norton Brissac (NB), Sr. Marketing Manager for Aluminum Electrolytic Capacitors with TDK Electronics and Daniel West (DW) Field Application Engineer with AVX […]
X and Y safety capacitor applications – Virtual Roundtable (part 1 of 2)
Hosted by Jeff Shepard, EE World has organized this “virtual roundtable” into “X and Y Safety Capacitor Applications” with Eduardo Drehmer (ED), Director of Marketing for Film Capacitors & Power Quality Solutions with TDK Electronics, Inc. and Daniel West (DW), Field Application Engineer with AVX Corp. JS: What are the most confusing aspects of X […]
Digital multiphase controllers, smart power stages optimized for IoT infrastructure systems
Renesas Electronics Corporation announced its 2nd generation of 15 new digital multiphase controllers and six smart power stages that support 10A up to 1000A+ digital computing loads for advanced CPUs, FPGAs, GPUs, and artificial intelligence (AI) ASICs addressing IoT infrastructure systems. The ISL6822x, ISL6823x, RAA2282xx digital multiphase controllers, and ISL993xx, RAA2213xx smart power stages expand […]
Ultra-high-luminance LEDs reduce headlamp power consumption
Seoul Semiconductor Co., Ltd. announced the introduction of its next-generation WICOP UHL (Ultra High Luminance) Series LEDs, which reduce headlamp power consumption up to 20% for electric vehicles, with an improvement of heat dissipation performance up to 40%. The company will begin mass production in 2021 and with promotions to key customers. Battery power consumption is […]
Varistors sport monitor outputs, integrated thermal protection to handle over voltages
TDK Corporation presents two new series of ThermoFuse varistors, which are equipped with monitor outputs and integrated thermal protective components for overvoltage protection. The MT25 series (B72225M*) currently covers a voltage range from 150 VRMS to 385 VRMS, and its maximum surge current capability is 20 kA at a pulse form of 8/20 µs, according to […]
Tiny automotive-compliant, 40V dual MOSFET boasts low RDS(on) resistance
Diodes Incorporated announced the industry’s first automotive-compliant 40V dual MOSFET in a 3.3mm x 3.3mm package. The DMT47M2LDVQ can replace two discrete MOSFETs to reduce the board space footprint in many automotive applications, from electric seat control to advanced driver-assistance systems (ADAS). The DMT47M2LDVQ integrates two n-channel enhancement-mode MOSFETs with the industry’s lowest RDS(ON) for […]
