Power Supplies

TDK has created a range of surface-mount high-current common-mode chokes. “Customers who prefer reflow soldering but need high-current common-mode chokes can now get an SMD solution,” according to the company. “These components can filter common-mode noise for rated currents from 24 A to 36 A at a temperature of +70°C. With additional cooling higher currents can be achieved – this ...

Farnell is stocking the band new microBRICK regulator module from Vishay Intertechnology, expanding its power portfolio with the smallest DC/DC regulator module on the market. micoBRICK is a synchronous buck regulator module with integrated power MOSFETs and an inductor. It can supply 20 A of continuous current at up to 2 MHz switching frequency. The regulator produces an adjustable output ...

EPC has introduced an evaluation board implementing a 40Arms (60A peak) three-phase inverter that will run from 30V to 130V. Called EPC91200, it is “suitable for 80  and 110V battery systems commonly used in industrial automation, agricultural machinery and material handling equipment like forklifts,” according to the company. The inverter is designed around EPC’s 150V 3mΩ EPC2305 GaN HEMT, a ...

Infineon has released a family of H-bridge driver ICs for small brushed dc motors in vehicles, that include hardware for ISO26262-level functional safety. Called the BTM90xx family, they are intended to work over 7 to 18V, but have some function at 4.5V, and can survive up to 40V. There are four parts: BTM9010EP ±3.4A continuous, PWM input BTM9011EP ±3.4A continuous, ...

Omron has designed a relay that can interrupt 200A at 500V, aiming to displace contactors from dc electric vehicle chargers, batteries and solar inverters. “A proprietary gas-less design cools arcs without the need for any special parts or materials in the manufacturing process, while eliminating the possibility of gas leakage,” according to the company. Gas-less? “G9EA, G9EC, and G9EH relays ...

Ditronix has announced a multi-phase power and energy monitoring board in the form of a ‘Hat’ for Raspberry Pis. Called ‘IPEM PiHat’, it is based on Microchip’s M90E36A monitoring and power computation IC. “The board may be used as a stand-alone controller-monitor, or integrated within an IoT in-house or IoT cloud MQTT monitoring platform,” according to the company. “Safety is ...

Nexperia has introduced an inductor-less energy harvesting IC that is able to cold start with 12μW from 270mV. Called NEH7100BU, it can mediate between a harvesting power source, a USB charger, a battery (or capacitor) and the load. To maximise power extracted from photovoltaic cells, which have variable output impedance, and embedded hill-climbing algorithm homes-in on the best operating point ...

AL8866Q is an AEC-Q100 (Grade 1) qualified dc-dc converter controller aimed at automotive front lights such has headlamps. In needs an external n-channel power mosfet, and can implement buck, boost, buck-boost or SEPIC (single-ended primary-inductance converter, pictured) topologies. Operation is from 4.7 to 85V, covering 12V, 24V and 48V battery power rails. Analogue and PWM dimming are possible via a ...

Relec is offering a 750W bi-directional dc-dc converter from Calex, aiming it at 48V-to-12V hybrid battery systems in e-mobility applications. Called 48S12.750BCE, the converter’s high-side voltage range of 32 – 63.2V, and the low-side range is 6 – 16V. Efficiency is up to 96.7%. It is suited to “managing energy between the main battery and auxiliary systems efficiently”, according to ...

Toshiba is aiming vehicle body automation with it its latest three-phase motor diver. TB9084FTG, as it will be known “supports replacing brushed dc motors with quieter, longer-lasting BLDC motors to drive body system applications like powered sliding passenger doors, power tailgates, adjustable seats, electric pumps and fans”, it said. The IC is designed to control the gates of seven external ...