A new family of 1,200 V rectifier diodes is available in ThinDPAK, D2PAK-D, and TO-247BD packages from Taiwan Semiconductor. The devices are offered with current ratings of 15 A, 30 A, and 60 A. Each diode series supports a maximum forward-voltage rating of 1.3 V and maintains low reverse leakage below 10 µA at 25 […]
AC-DC
Pulse transformers provide wide operating range and low interwinding capacitance
Sumida Corporation has introduced two new pulse transformers, the CIUH7D46 and CIUH10D47, designed for use in advanced Battery Management Systems (BMS) across electric vehicles, industrial energy storage, and portable power applications. These components mark the beginning of a new series of low-profile, surface-mount transformers designed for environments that require compact design and high isolation. Battery […]
5 mm‑wide solid state relays offer AC/DC switching in compact form factor
Carlo Gavazzi Automation has introduced the RSLS Series of 5 mm‑wide solid-state relays for low‑power AC and DC load switching. The RSLS Series features a single‑pole, ultra‑slim design compatible with industry‑standard relay footprints, making it suitable for replacing electromechanical relays in compact installations. The solid-state design provides silent operation, wear‑free switching, and resistance to vibration […]
Power switch control and protection platform debuts with direct digital control
Amber Semiconductor, Inc. is showcasing its latest breakthroughs at APEC 2025, including its first commercial semiconductor line for AC to DC power conversion. This new offline AC-DC conversion product offers major size reduction and design-in simplification. Production samples will be available to Alpha customers in Q2 2025 with broader EVK availability in Q3 2025. AmberSemi […]
FAQ on three-phase AC power: part 1
We’re familiar with single-phase AC at the outlet, but multiphase AC offers advantages and is necessary for higher-power installations. For most engineering designs, the circuit’s DC operating power comes from one of two sources: either a battery or a basic AC line, which has been stepped down via a transformer, rectified to DC, and then […]
Power-supply modules offer numerous power and cooling options
XP Power introduces the CCR range of compact, low-profile (25.4mm) AC-DC power supplies with flexible cooling options and power ratings from 110W to 420W, allowing more efficient use of space within the end equipment. Approved for use in medical and industrial applications, the high-efficiency and high-power density units feature a baseplate-cooled design that ensures effective […]
FAQ on high-side vs. low-side load switching: part 1
The difference between high-side and low-side power switching is not apparent to many new designers, but it is a critical aspect of a viable circuit. Applying power (voltage and current) to a load and removing it using a mechanical or electronic switch is a requirement in most systems. Even if the system is powered on, […]
What are the different single-phase transformerless PV inverter configurations?
A transformerless PV inverter has no galvanic isolation between the input and the output, leading to current leakage problems. Parasitic capacitance plays a crucial role in the circulation of leakage current. Several types of transformerless PV inverter configurations can address this issue. This FAQ discusses why parasitic capacitance matters and the four commonly used configurations […]
Flyback controllers feature adaptive synchronous rectification for AC-DC conversion
Nexperia introduced a new series of AC/DC flyback controllers as the latest additions to its continuously expanding portfolio of power ICs. The NEX806/8xx and NEX8180x are designed for GaN-based flyback converters in devices such as power delivery (PD) chargers, adapters, wall sockets, strip sockets, industrial power and auxiliary power supplies, and other AC/DC conversion applications […]
AC-DC power supplies target cardiac floating requirements
Advanced Energy has announced the NCF150 series of high-isolation, low-leakage current AC-DC power supplies that enable medical equipment designers to meet the cardiac floating (CF) requirements of the IEC 60601-1 medical safety standard using off-the-shelf products. Type CF is the most stringent medical electrical safety classification and is essential for medical products that may come […]
