Texas Instruments has used integrated moulded magnetics to shrink the size of six multi-amp dc-dc converters – five buck types and one boost. The shrunk versions are branded ‘MagPack’ by the company, which will not reveal details of the construction except to say that the control IC and inductor coil are stacked before magnetic material for the inductor is over-moulded ...
TDK-Lambda has announced a series of rugged conduction-cooled dc-dc buck converters rated up to 750W. They come in a five-sided conduction cooled aluminium housing that measures 38.1 x 49.5 (39.4) x 13mm including (ignoring) mounting tabs. None are isolated and all have a single regulated output, remote on-off, remote sense and output trim – through a standard 1/16th brick through-hole ...
Rohm has released a line of 16bit microcontrollers for power supplies with hybrid analogue-digital control loops, plus an evaluation board with software as a design stepping stone. “In recent years medium power power supplies are required to provide a level of reliability and precise control that is difficult to meet with analogue-only configurations,” said Rohm. “On the other hand, while ...
Recom has launched a series of DIN-rail ac-dc power supplies with 90 to 264Vac inputs and 120W, 240W or 480W outputs – and it has some new mini buck dc-dc module evaluation boards. Efficiency of the ac-dc DIN modules is up to 93.5%. All measure 123.4mm deep by 123.6mm high, and width is 30mm, 40mm or 56mm respectivley. The models are: ...
EPC is aiming at satellites with an application note on four-phase dc-dc point-of load converters using multiple 26 x 19mm modules. The note, AN005, picks a radiation-specified current-mode PWM controller from Texas Instruments (TPS7H5001-SP) as a source of PWM waveforms. Each TPS7H5001-SP can produce two pairs of upper and lower PWMs for a total of two phases, and TPS7H5001-SP has ...
It is spring time, so it must be time to contemplate once more the many challenges of Cuk converters. And this time it is the question: how does one turn on and off a load when the output of a Cuk converter is of the opposite polarity to the input (right). The obvious thing is to hang a p-channel mosfet ...
Microchip Technology has announced a family of radiation-tolerant isolated dc-dc 50W power converters, in nine variants with single and triple-outputs ranging from 3.3V to 28V. LE50-28 power converters are designed to meet MIL-STD-461. The power converters have a companion EMI filter. This series provides flexibility to parallel up to four power converters to reach 200W. “The family of devices enable ...
Samsung is aiming at electric vehicle on-board chargers with a 1,000v 22nF multi-layer ceramic capacitor. CL32C223JIV1PN# (yes, there is a # in the part number) is aimed at CLLC resonant power supply topologies and is constructed with a COG dielectric. Operation is across -55 to +125°C and it has a ±5% tolerance. Packaging is a 2.5mm tall 3.2 x 2.5mm ...
may2024 How to disconnect loads from a Cuk converter apr2023 Synchronous Cuk converter with totem pole driver july2021 Trying to drive a Cuk rectifier mosfet – a better solution? july2021 Trying to drive a Cuk rectifier mosfet – a solution? July2021 Trying to drive a Cuk synchronous rectifier mosfet jan2017 ‘Cuk-buck 2’ dc-dc converter – more fine art from Slobodan’s ...
At APEC 2024, Power Integrations‘ chairman and CEO, Balu Balakrishnan, “declared war on DC-DC post regulators”, as the company introduced the GaN-based InnoMux-2 switcher IC family. The company said that the new ICs are an example of its value and energy focus because it combines AC-DC and DC-DC stages into a single power converter, resulting in a reduction in power ...
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