When it comes to high-frequency transformer design, the careful management of parasitic elements is essential to ensure converter efficiency. Parasitic self-capacitance and leakage inductance matter when associated with switching losses, electromagnetic interference, and resonance issues in power electronics. This article examines how specific turn progressions, ranging from U-Type to Serpentine and 3D-molded sector windings, impact […]
Transformers
What is a solid-state transformer?
A solid-state transformer (SST) is an AC-AC converter, sometimes called a power electronics transformer (PET), that replaces a conventional magnetic transformer in applications like green energy systems, cloud data centers, EV fast chargers, and smart grid infrastructure. They are smaller and lighter than conventional transformers and can support better power quality, higher energy efficiency, and […]
SMT pulse transformers designed for battery management
Sumida Corporation announces the launch the start of a new series of automotive-grade, low-profile surface-mount transformers designed specifically for use in Battery Management Systems (BMS) in electric vehicles (EVs), industrial battery storage, and portable power applications. The new pulse transformers are the CIUH7D46 and CIUH10D47. Battery management systems play a critical role in ensuring the safety, […]
Chip-style transformers enhance high CMTI gate driver performance
Coilcraft announced the HTX8045C Series LLC half-bridge transformers designed for isolated gate driver bias supply applications. The new transformers build on the established chip-style construction of the HTX family, representing an advancement over conventional core and bobbin designs. This compact, surface-mount configuration reduces component size and enhances manufacturing efficiency, enabling more cost-effective production. The HTX8045C […]
Gate drive transformers reach to 1000 V
TDK Corporation has significantly extended its EPCOS InsuGate series of SMT gate drive transformers, introducing new variants rated for a DC working voltage of up to 1000 V (ordering code: B78541A25). These components meet the IEC 61558-1/2-16 standard for basic insulation and enable more compact gate driver designs for full-bridge inverter modules, particularly in demanding […]
What is a coreless transformer and how does it work in a solid-state isolator?
Coreless transformers (CTs) in solid state isolators (SSIs) rely on inductive coupling to transfer information and power across an isolation barrier. CTs employ near-field magnetic induction coupling, which is used in some wireless charging protocols. Simple induction coupling relies on the proximity of the coils for optimal efficiency and is less efficient as the separation […]
Flyback transformers for no-opto isolated power circuits
Sumida announces the launch of its new CEP1311F Flyback Transformers, designed specifically for use with “no-opto” isolated flyback circuits, such as the Analog Devices LT8304-1 reference design. This innovative, isolated flyback transformer delivers exceptional high-voltage performance, making it ideal for industrial, automotive, medical, and telecom applications. The CEP1311F (13324-T083 to13324-T087) transformers have single outputs, while […]
Gate drive transformers provide galvanic isolation for IGBT and MOSFET control
ITG Electronics has introduced a new series of gate drive transformers comprising a range of products for various needs. The company’s T201213 Series of Gate Drive Transformers spans lower-current items for general applications, such as a 200 volts direct current (VDC) version, to products offering up to 450VDC for high-voltage applications. Gate drive transformers are specialized pulse […]
Transformer delivers 3000 VDC isolation for Single-Pair Ethernet
The ZE2531 Isolation Transformer from Coilcraft is designed to provide galvanic isolation for Single Pair Ethernet (SPE) networks, supporting 10Base-T1L and Power over Data Line (PoDL) for transmitting both data and power over a single twisted pair cable. The part is compliant with the IEEE 802.3cg standard. It works with 10Base-T1L common mode choke and […]
500 V SMT transformers shrink in size
TDK has announced the EPCOS EP9 series of surface-mount transformers (ordering code B82804E). At 13 × 11 × 11 mm, these parts are smaller than the company’s existing E10EM series of SMT transformers designed for IGBT and FET gate driver circuits. Engineered for high performance in demanding e-mobility and industrial applications with 500 V system […]
