ROHM has recently announced the availability of reference boards designed to evaluate its high voltage fan motor drivers that achieve greater efficiency and simplify inverter configuration in home appliances such as ceiling fans and ACs. Of the total power consumed worldwide, it has been noted that close to 50% is used to drive motors, and […]
Amplifier
Half-bridge drivers work with three-phase motor controllers
Infineon Technologies AG adds two power boards to the family of iMOTION™ Modular Application Design Kits (MADK). The two half bridge boards complement the compact and flexible evaluation system providing a scalable design platform for 3-phase motor drives in the range from 20 W to 300 W. The MADK aims at applications in the field […]
RMS power detector operates up to 30 GHz
Linear Technology introduces the LTC5596, a high-frequency, wideband and high dynamic range RMS power detector that provides accurate, true power measurement of RF and microwave signals independent of modulation and waveforms. The LTC5596 responds in an easy to use log-linear 29mV/dB scale to signal levels from–37dBm to –2dBm, at accuracy better than ±1dB error over […]
ICs provide sinusoidal drive for 3-phase BLDC motors
ON Semiconductor has announced three new devices for driving 3- phase BLDC motors via 180 degree sinusoidal waveforms. Designed for use in cooling fans of household appliances such as refrigerators, as well as games consoles and computing equipment, the LV8811, LV8813, and LV8814 have voltage ranges of 3.6 volts (V) to 16 V, 6 to […]
Isolated FET driver family aims at relay replacement apps in industrial and automotive uses
Developers have traditionally used EMRs and optocoupler-based SSRs in switching applications, and both technologies have limitations. EMRs are costly, slow, bulky and noisy. These drawbacks are driving double-digit growth in SSR usage, but even SSRs pose challenges. Optocoupler-based SSRs have inherent limitations such as shorter lifetimes due to LED aging, reduced performance and stability at […]
Isolated gate drivers incorporate protection for HV IGBTs
Silicon Labs has expanded its ISOdriver portfolio with a family of isolated gate drivers designed to protect sensitive insulated-gate bipolar transistor (IGBT) switches in power inverter and motor drive applications. The new Si828x ISOdriver family provides industrial-grade isolation (5 kVrms withstand), best-in-class feature integration including an optional dc-dc converter, the industry’s fastest desaturation detection, superior timing […]
Top power electronics threads on EDABoard.com – April
(editor’s note: Intrigued by the problem? Have a question or optional solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the forum thread.) How can an offline LED driver last 20 years? – The Cu-Beam light is certainly the best LED light that the […]
Power Magnetics Catalog Includes Reference Designs
Premier Magnetics, global producer of high-quality magnetic components for switch-mode power supplies, DC-DC converters and data communications applications, announces the availability of its new 87-page catalog providing details of the company’s extensive line of transformers, inductors and chokes designed specifically for switch-mode power supply applications. Also included are reference designs utilizing Premier Magnetics’ devices in […]
Dev boards speed development of GaN transistor designs for class-E/D amps, push-pull converters up to 30 MHz
Efficient Power Conversion Corporation (EPC) has announced high efficiency, GaN-based differential mode development boards that can operate up to 30 MHz. These boards provide an easy-to-use way for power systems designers to evaluate the exceptional performance of gallium nitride transistors and get their products into volume production quickly. These development boards are designed for class-E […]
