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Transformers

Low-power transformers meet isolation, creepage, clearance safety standards

November 21, 2019 By Aimee Kalnoskas Leave a Comment

14A Series low-power transformers

Signal Transformer announced select models of the 14A Series One-4-All International transformers for low power applications are now recognized by UL as Inherently Limited Class 2 transformers per (UL 5085-3). The 14A Series offer better performance at an affordable price point and meet the high isolation, creepage and clearance necessary to comply with international safety […]

Filed Under: Power Components, Transformers Tagged With: signaltransformer

Flyback transformers handle IEEE 802.3 af-compliant PoE PD and PWM controller apps

November 21, 2019 By Aimee Kalnoskas Leave a Comment

SM13117EL flyback transformer

Bourns, Inc. announced an addition to the company’s flyback power transformer line. Designed to support IEEE 802.3 af-compliant, integrated Power-over-Ethernet (PoE) Powered Device (PD) and Pulse Width Modulation (PWM) controller applications, Bourns Model SM13117EL provides DC/DC power conversion in isolated mode. The SM13117EL flyback transformer features 13 watts of output power, 36 – 72 VDC/ 250 kHz input, […]

Filed Under: Power Components, Transformers Tagged With: bournsinc

Low power transformers now UL recognized as Class 2 models

November 7, 2019 By Aimee Kalnoskas Leave a Comment

ST and DST Series

Signal Transformer, a Bel group company, announced selected models of the ST and DST Series of high isolation split bobbin, low power transformers, are now recognized by UL as Inherently Limited Class 2 transformers per (UL 5085-3) and now incorporate a UL 1446 Class F 155.0C Insulation System. The ST and DST Series utilize split […]

Filed Under: Power Components, Transformers Tagged With: signaltransformer

Power Electronics Top Talks in August 2019 on EDABoard.com

September 1, 2019 By Aimee Kalnoskas Leave a Comment

power electronics

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 1 minute vs. 1-second isolation voltage test – Some offline transformers are spec’d for 3750vac for 1second (3mA). Some are spec’d […]

Filed Under: Battery Management, Featured, MOSFETS, Power Components, Power Management, Semiconductor, Transformers, Transistors Tagged With: analogdevicesinc, edaboardcom, lineartechnologyinc, stmicroelectronicsinc, texasinstrumentsinc

Single-phase buck/boost transformer provides 208-V primary, 240-V secondary

May 23, 2019 By Aimee Kalnoskas Leave a Comment

MT-BBT

Larson Electronics announced the release of a single-phase buck and boost transformer for indoor and outdoor use. This transformer provides protection against critical equipment failures and isolates the power source from the connected device. This 14.75 kVA-rated unit features a primary voltage of 208V AC and a secondary voltage of 240V AC. The MT-BBT-208V-240V-62.5A single-phase buck […]

Filed Under: Power Components, Transformers Tagged With: larsonelectronics

Three-phase step-up buck and boost transformer for indoor and outdoor use.

May 8, 2019 By Aimee Kalnoskas Leave a Comment

Larson Electronics announced the release of a three-phase step-up buck and boost transformer for indoor and outdoor use. This 4.69-amp unit provides protection against critical equipment failures and isolates the power source from the connected device for added protection. This unit carries a 2.21 kVA rating and a primary voltage of 240V Delta. The MT-BBT-240D-270D-3P-4.69A three-phase […]

Filed Under: Power Components, Transformers Tagged With: larsonelectronics

Miniature surface-mount gate drive transformers qualified for automotive use

April 23, 2019 By Aimee Kalnoskas Leave a Comment

gate drive transformers

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 […]

Filed Under: Power Components, Transformers Tagged With: ttelectronics

PSMA Power Technology Roadmap provides critical insights into technology

April 11, 2019 By Lee Teschler Leave a Comment

psma

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 […]

Filed Under: Power Supply News, Transformers Tagged With: psma

SMD gate-drive transformers target battery management tasks

April 10, 2019 By Aimee Kalnoskas Leave a Comment

SMD gate-drive transformers

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 […]

Filed Under: Battery Management, Power Components, Power Management, Transformers Tagged With: ttelectronics

Planar transformers optimized for 200-700 kHz apps

March 22, 2019 By Aimee Kalnoskas Leave a Comment

PM-PTxxx Series

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 […]

Filed Under: Power Components, Transformers Tagged With: premiermagnetics

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A frequency you can count on There are few constants in life, but what few there are might include death, taxes, and a U.S. grid frequency that doesn’t vary by more than ±0.5 Hz. However, the certainty of the grid frequency is coming into question, thanks to the rising percentage of renewable energy sources that…

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