The Power Sources Manufacturers Association (PSMA) recently released the 2019 edition of the Power Technology Roadmap. The report, which forecasts the power technology and power delivery trends through 2023, includes a printed report along with a feature-rich USB memory drive containing a record number of seventeen recorded webinars with up-to-date explanations of the information contained […]
Transformers
SMD gate-drive transformers target battery management tasks
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 […]
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 […]
Working with higher voltages, Part 1: Voltage boosters
Whether for efficiency or due to the device physics, many applications require voltages ranging in the tens, hundreds, or even thousands of volts; the circuits which produce these voltages start with basic charge pumps and extend to voltage multipliers with simple schematics but many subtleties. Lower-voltage circuitry is the trend, with ICs and designs operating […]
Double choke optimized for SMT assembly
With its WE-TDC HV, Würth Elektronik eiSos presents a further double choke optimized for SMT assembly. The magnetically shielded 1:1 transformers with an isolation voltage of 2,000 V stands out from similar components through lower losses and a low level of stray inductance. The WE-TDC HV product family encompasses nine different models – five in […]
Power Electronics Top Talks in January 2019 on EDABoard.com forums
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 Driving induction motor using TRIAC – The induction motor is 230VAC. I have to drive a 230VAC induction motor in both directions […]
High-frequency wire wound transformers target discontinuous mode flyback circuits
Pulse Electronics’ Power Business Unit introduces its new series of PA4470.XXXNL high-frequency wire wound transformers. Designed to deliver high reliability and performance, the PA4470.XXXNL is a low-power transformer for use in a discontinuous mode flyback circuit which provides both the regulation and the isolation required for datacom and industrial applications. The new series of transformers are ideally suited for low power isolated designs where […]
Power Electronics Top Talks in October on EDABoard.com forums
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 Y2 capacitors downstream of common mode choke – We have seen a report detailing that Y capacitors in an offline SMPS should […]
Tamura explains how to pick a current transformer
The subject of current transformers is pretty big when you’re talking about inverters and other kinds of power electronics. Tamura’s Craig Simpson went through some examples of that kind of technology in a recent video. Tamura has been making current sensors for over 20 years and have developed quite a few different models of current […]
Surface-mount current-sense transformers handle 40 A at up to 500 kHz
Wurth Electronics Midcom has announced the release of additional Current Sense transformers to the MID-SNS family. “These surface mount transformers are designed to operate between 50khz to 500khz and sense up to 40A of current. The turns ratios offered are 1:50, 1:100, 1:150 and 1:200 with Inductances ranging from 1.4mH to 22.4mH. Compared to current sense […]
