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AC-DC

Power switch control and protection platform debuts with direct digital control

March 17, 2025 By Aimee Kalnoskas

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 […]

Filed Under: AC-DC, APEC 2025 Tagged With: Amber Semiconductor

FAQ on three-phase AC power: part 1

February 26, 2025 By Bill Schweber

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 […]

Filed Under: ac power sources/frequency converters, AC-DC, FAQ, Featured, Power Supplies, Three-phase Tagged With: FAQ

Power-supply modules offer numerous power and cooling options

February 11, 2025 By Redding Traiger

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 […]

Filed Under: AC-DC, Development Tools, Industrial, Medical, Power Components, Power Management, Power Supplies Tagged With: xppower

FAQ on high-side vs. low-side load switching: part 1

December 23, 2024 By Bill Schweber

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, […]

Filed Under: AC-DC, FAQ, Featured Tagged With: FAQ

What are the different single-phase transformerless PV inverter configurations?

December 4, 2024 By Rakesh Kumar

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 […]

Filed Under: ac power sources/frequency converters, AC-DC, FAQ, Featured, power modules Tagged With: FAQ

Flyback controllers feature adaptive synchronous rectification for AC-DC conversion

October 17, 2024 By Redding Traiger

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 […]

Filed Under: AC-DC, Controllers, Development Tools, Industrial, Power Management Tagged With: nexperia

AC-DC power supplies target cardiac floating requirements

October 7, 2024 By Redding Traiger

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 […]

Filed Under: AC-DC, Development Tools, Medical, Power Components, Power Supplies Tagged With: advancedenergy

FAQ on voltage and current sources: part 2

September 25, 2024 By Bill Schweber

Voltage and the lesser-known current sources provide important IC, circuit, and system functions. Current sources We have examined voltage sources, and now we can examine their less-known but necessary complement, the current source. Q: What is a current source? A: As the name implies, the current source is like a voltage source but different. It […]

Filed Under: AC-DC, FAQ, Featured Tagged With: FAQ

FAQ on voltage and current sources: part 1

September 19, 2024 By Bill Schweber

Voltage and the lesser-known current sources provide critical IC, circuit, and system functions. Voltage sources and their complement to current sources are essential elements of many systems, circuits, and IC designs. Experimenters and novice engineers are familiar with voltage sources of various types — even if not by that name ­­— in the form of […]

Filed Under: AC-DC, FAQ, Featured Tagged With: FAQ

AC-DC power supplies deliver 3 V to 48 V over wide input voltage range

July 18, 2024 By Redding Traiger

XP Power introduces the EHL series of PCB mount AC-DC power supplies that deliver single output voltages ranging from 3.3VDC to 48VDC. Available in both open-frame and encapsulated mechanical formats, the EHL05 (5W) and EHL20 (20W) high-power density power supplies feature an ultra-wide input range of 85VAC to 528VAC for global compatibility and high stability during fluctuating power conditions. […]

Filed Under: AC-DC, Development Tools, Industrial, Power Components, Power Management, Power Supplies Tagged With: xppower

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Robust design for Variable Frequency Drives and starters

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