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 […]
ac power sources/frequency converters
1U high AC power sources offer up to 3kVA output
TDK-Lambda expands its GENESYS series with the introduction of new programmable AC power sources. The GAC and GAC-PRO models, rated at 2kVA and 3kVA, enhance the company’s test and measurement capabilities. These 1U chassis units offer compact design and comprehensive functionality for various applications. The GAC-PRO models provide extended capabilities, including AC, DC, and combined […]
Power supply offered in 85 – 265 V AC single-phase input option
TDK Corporation introduces the HWS3000 programmable AC-DC power supplies in the TDK-Lambda series. These units deliver up to 3000 watts in a 270 x 150 x 61mm case size. The HWS3000 offers programmable output voltages of 24V, 48V, 60V, or 130V, with the ability to adjust from zero to maximum rating. Engineers can choose between […]
Delivering power supply reliability in mission-critical systems
There are several factors to consider when selecting a power supply that delivers the high voltages often needed by large and complex high-performance systems. For almost all electronic products and systems, high reliability should be expected. Still, in some markets, reliability cannot be compromised or a trade-off for other performance factors. In particular, mission-critical industrial […]
TCI 500U series AC/DC power supplies
TRACO POWER releases their new TCI 500U series of power supplies rated up to 450W @ 230 VAC and 400W @ 115VAC conduction-cooled operation and 500W with 30 CFM airflow. This series was designed to support applications where forced air cooling is not desired or not available. Available in a compact 3.3 x 5.2 x […]
High power programmable linear power supply line expansion
Acopian expanded their high-power linear Rack and Benchtop power supplies rated up to 1200W. Models now include dc wide-adjustment output voltages ranging from 0-5VDC to 0-150VDC and up to 1200 watts. All voltages are available in 2U, 3U, and 4U high configurations. All models are voltage and current-programmable. In addition, these units are constant current […]
PMIC recharges battery or capacitor using energy harvesting
Nexperia announced an expansion to its range of Power ICs with Energy Harvesting solutions to simplify and enhance the performance of low-power Internet of things (IoT) and other embedded applications. The NEH2000BY is a high-performance power management integrated circuit (PMIC) that recharges a battery or storage capacitor using energy harvested from ambient sources, such as […]
“Infinity” rack and benchtop power supplies rated up to 1200W
Acopian launches their high-power linear Infinity Rack and Benchtop power supplies rated up to 1200W. DC single/nominal output voltages range from 3.3VDC to 150VDC and up to 150A (1200W). All voltages are available in 2U, 3U and 4U high configurations. These linear power supplies are highly configurable. Standard features include, but are not limited to, […]
Proof-of-concept platform evaluates ambient light and heat micro-power sources
Trameto has introduced a proof-of-concept platform for evaluating how to generate a reliable micro-power source from ambient light and heat. Called Severn, the compact platform can be used as a prototype because its size and form factor could be adopted for production. An engineering sample of the TM2040, a four-input, smart EH PMIC is at […]
GaN half-bridge power ICs enable megahertz-range switching frequencies
Navitas Semiconductor announced the industry’s first GaNSense half-bridge power ICs. These half-bridge ICs enable a new level of MHz switching frequencies while dramatically reducing the system cost and complexity compared to existing discrete solutions. GaNSense half-bridge power ICs integrate two GaN FETs with drive, control, sensing, autonomous protection, and level-shift isolation, to create a fundamental […]
