Power

Different components affect system accuracy. Shaury Anand, of Texas Instruments, explains how to choose those most suitable for a precision DC power supply design. Test and measurement applications such as battery test, electrochemical impedance spectroscopy and semiconductor test require accurate current and voltage output DC power supplies. Both the current and voltage control accuracy of the equipment need to be better ...

Optimizing first for best power instead of best timing delivers better results all around. Among the key targets in place-and-route—performance, power, and area (PPA) — performance has traditionally been the primary focus. Low power has been gaining in importance though, particularly at today’s advanced process nodes. Of course, no one wants lower-performing chips, so place-and-route tools employ a variety of ...

TDK-Lambda has extended its CCG series of dc-dc converters further downward with the introduction of 3W and 1.5W models – in 2015 there were 30W CCG converters, reaching 15W the next year. The two new types have a lot in common. Firstly, they share a 15.7 x 10.4 x 11.5mm plastic case, with through-hole or surface-mount terminations (see photo). “On the ...

Digi-Key Electronics, in collaboration with Siemens, will host an online webinar about power reliability for automation and control systems. It takes place on Tuesday, 8 March, at 11 a.m. (CST) and will be presented by Greg Kateb, SITOP power product consultant for Siemens. Spcifically, Kateb will address a variety of scenarios that a power system might face, such as short ...

Infineon has created a family of single-channel isolated gate driver for IGBTs and silicon carbide mosfets with up to 300kV/μs common-mode transient immunity and up to +6  and -8.5 A typical peak current. Called 1ED332x, and branded ‘F3 Enhanced’, they come in 300mil wide DSO 16 packaging with 8mm creepage distance. Operation is expected with devices between 600V and 2.3kV – ...

Diodes has announced an ideal diode controller for reverse discharge protection. Called DZDH0401DW, it is designed to work with a p-channel mosfet in the high-side rail in systems up to 40V. It might better be described as a ‘nearly ideal diode controller’ as it draws some current from the output circuit when no input is connected – 147μA if a ...

Innoscience Technology, which was founded to pursue high performance, cost-effective Gallium Nitride on Silicon (GaN-on-Si) power ICs, has come up with a 40V bi-directional GaN-on-Si enhancement mode HEMT for mobile devices, including laptops and cellular phones. The INN40W08 HEMT has been developed using the company’s InnoGaN technology which features ultra-low on resistance. “ Innoscience  now makes it possible to introduce ...

Flex Power Modules has used a two-phase topology to deliver 80A continuously (140A peak) from a 0.7cm3 (10 x 9 x 7.6mm) dc-dc module. Called BMR510, it includes necessary magnetic components and can produce outputs between 0.5 – 1.3V from inputs spanning 4.5 to 16V “which makes it compatible with 4:1 conversion ratio front-end intermediate bus converters”, said Flex. Efficiency is 88.5% at 13.5Vin, ...

Advanced Energy of Colorado has introduced single-phase hot-swappable PSUs up to 4kW for horticultural and commercial LED lighting. “Indoor growers are turning to centralised power systems that distribute dc rather than ac power directly to individual LED lamps”, said company v-p of industrial power Joe Voyles. The supplies, called the LCM4000HV series, are compliant with DesignLights Consortium (DLC) technical requirements ...

TDK-Lambda is aiming at large industrial distributed power systems with a 45kW non-isolated ac-dc PSU. Called TPF45000-385 it can operate from can operate from 360 – 528Vac three-phase (delta or Y) and produces a stable 385Vdc. Input to ground isolation is 2kVac. Efficiency is up to 98%, allowing air cooling by internal variable speed fans. Operation is across -10 to +50°C ambients (-20°C start-up). ...