We’re familiar with single-phase AC at the outlet, but multiphase AC offers advantages and is necessary for higher-power installations. The first part of this article examined the need for three-phase AC. This part looks at the implementation. Power sourcing and wiring Q: How is the three-phase AC power generated? A: It does not use three […]
Three-phase
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 […]
Low-profile, three-phase power supply features wide input voltage range for industrial use
COSEL Co., Ltd. announced the launch of the HFA3500TF, a low-profile 3-phase, 3-wire 3500W AC/DC enclosed power supply designed for industrial equipment such as semiconductor manufacturing, laser processing machines, and robotics. The HFA3500TF addresses worldwide applications and 3-Phase Delta or 3-Phase Star networks, with an input voltage range of 180VAC to 528VAC. Utilizing an energy-optimized, […]
Regenerative power sources and loads emulate real-world power flows
Pacific Power Source announced its regenerative product line to support the growing demand for electrification. The line includes the AGX Regenerative AC/DC Source, RGS Regenerative Grid Simulator, and RLS Regenerative Load Simulator. These bidirectional sources and loads emulate real-world power flows, making them ideal for testing the utility grid, EV chargers, Vehicle-to-Grid (V2G), Vehicle-to-Home (V2H), […]
DIN rail power supplies series now includes high-power three-phase AC input options
TDK Corporation announces the addition of higher power, three-phase AC input models to the TDK-Lambda DRB series of DIN rail mount power supplies. With 24V, 48V, and 72V outputs, the products are rated for continuous operation at 480W or 960W and can deliver a boost of 720W and 1440W respectively for up to seven seconds. […]
Power supply operates from 400/440/480 Vac Delta and Wye inputs
TDK Corporation announces the addition of the TDK-Lambda brand TPS4000-12 power supply, further extending the existing 3kW to 4kW rated TPS series. Delivering up to 2040W output power (12V at 170A) in a 2U high package, the TPS4000 series operates from a wide range Delta or Wye 350 – 528Vac three-phase input. These industrial power […]
Conduction cooled, fanless, 3-phase power supply delivers 3.5 kW
COSEL Co, Ltd announced the launch of the HCA3500TF, a fanless 3-phase / 3-wire 3500W AC/DC enclosed power supply, designed and optimized for industrial equipment such as high-frequency amplifiers, laser processing machines, and robotics. Addressing worldwide applications and 3-Phase Delta or 3-Phase Star networks, the HCA3500TF input voltage covers a wide operating range of 180VAC […]
IGBT-based power modules target 3-phase motor control, medium-power VFDs
Infineon Technologies AG has launched the IM523 series of the CIPOS Mini family. The highly efficient IPMs (intelligent power modules) are based on the new 600 V Reverse Conducting Drive 2 (RCD2) IGBT technology and come with an open emitter. The CIPOS IM523 series enables the integration of various power and control components to increase […]
Power supply regulations, requirements, and standards
Regulatory standards cover safety and electromagnetic compatibility (EMC) and efficiency. Safety and EMC standards are relatively straightforward, and their numbers are limited. Efficiency is a different matter: Society’s drive to reduce greenhouse gas emissions results in increasingly sophisticated energy efficiency standards for all types of power converters. It started with relatively simple ENERGY STAR standards […]
Three-phase DIN rail ac-dc supplies sport +20% peak rating, low inrush current
TDK Corporation announces the introduction of the TDK-Lambda brand three-phase DRB120 and DRB240 DIN rail mount AC-DC power supplies. The models are rated at 120W and 240W with a two-second peak power capability of 144W and 288W, allowing for operation with inductive and capacitive loads. On initial start-up, the products have a low energy inrush […]
