TT Electronics announced the introduction of its HA42A and HA86A Series gate drive transformers for the automotive and industrial markets. These miniature surface mount design (SMD) solutions are ideal for high-efficiency Battery Management System applications where size and reliability are critical. HA42A and HA86A gate drive transformers are used in space-constrained scenarios to deliver controlling pulses […]
CR123A battery holder has an ultra low profile
The BH123A is an ultra-low-profile battery holder for “123A” batteries. The battery is flush with the PCB surface, so it adds no height to a CR123A cell when mounted on a circuit board. Use multiple holders, wired thru the PCB for serial or parallel connectivity options. The battery holder is made of premium materials like […]
Multilayer varistor transient voltage suppression devices rated for 175°C operation
AVX Corporation released the industry’s first multilayer varistor (MLV) transient voltage suppression (TVS) devices rated for 175°C operation. The new TransGuard VT Series high-temperature MLVs provide extremely reliable bidirectional overvoltage protection across operating temperatures extending from -55°C to 175°C with zero derating across the entire range, are qualified to AEC-Q200, and are currently available in […]
Isolated ICs ensure precise current/voltage measurements
Silicon Labs has introduced a family of isolated analog amplifiers, voltage sensors and delta-sigma modulator (DSM) devices designed to provide accurate current and voltage measurement with very low drift across temperature. Based on Silicon Labs’ robust, third-generation isolation technology, the new Si89xx family provides flexible voltage, current, output and package options to help developers reduce […]
Eval kit wrings out high-efficiency 50-W wireless power amps
GaN Systems announced the availability of its 50 W wireless power amplifier, a small size, low cost, and high-efficiency evaluation board ideal for wireless power transfer and charging applications. It is targeted for lower power applications in industrial and consumer markets for items such as power tools, IoT devices, handheld terminals, medical devices and household […]
Power Electronics Top Talks in March 2019 on EDABoard.com
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around power electronics. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com VFD to control 3-phase AC induction motor – I want to control the speed of a woodcutter that is equipped with […]
Foil-on-ceramic current-sense resistors offer values down To 2.5 mΩ
The CSRF Series utilizes foil-on-ceramic technology to achieve low values in small chip sizes. The 0.25-W rated CSRF0402 – HP, for example, is available in resistance values from 20 mΩ down to 2.5 mΩ. TCR ranges from ±400 ppm to ±200 ppm are possible depending on resistance value with tolerances as low as 1%. This […]
EMC filters minimize earth leakage currents
The re-engineered and improved the EPCOS LeaXield active leakage current filter is able to minimize earth leakage currents in converter-based drive systems. LeaXield is designed for applications in variable-speed drives such as those in machine tools, pumps, compressors, conveyance systems, and other pluggable devices. In these systems aggregate earth leakage currents can cause RCDs (residual […]
Ultra-precision current-sense chips feature resistance range to 80 mΩ
The CSSH2512 from Stackpole is an all metal current sense chip resistor capable of precision tolerances as low as 0.5% and TCR as low as 15 ppm. The resistance range for the 3-W 2512 size chip has been expanded and now spans from 0.5 mΩ up to 80 mΩ. The high precision combined with the […]
Planar transformers optimized for 200-700 kHz apps
Premier Magnetics announces its PM-PTxxx Series of frequency-optimized planar transformers. The new line, offering models with ratings to 250W, are designed for forward converter, full/half bridge and active clamp applications utilizing switching frequencies between 200 KHz and 700 KHz. Proprietary layout techniques for the circuit board windings result in optimization of transformer impedance and interwinding […]
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