Power Supplies

Pulsiv, the Plymouth University spinout specialising in energy efficient power supplies and battery chargers, has launches a series of reference designs. Pulsiv’s OSMIUM MCUs and AC-DC front-end circuit configurations are already available and the reference designs aim  to accelerate R&D. The reference designs offer 75W (85W peak) & 100W (150W peak) output power with universal mains input and 48V output. ...

EPC has created a GaN-based USB PD 3.1 dc-dc evaluation module around one of its integrated power stages and a low-profile (3mm) inductor. Called EPC9177, the converter is intended to meet the demands of multi-port chargers and on-motherboard power conversion from 28 – 48Vin to 12 – 20Vout. The module operates at 720kHz switching frequency and is set to deliver 12V ...

Rohm has announced a series of 50mA low drop-out linear regulators designed to be connected directly to the vehicle battery circuits without an intermediate regulator. Called BD7xxL05G-C, their inputs operate up to 42V and can survive 45V. The parts are: BD725L05G-C (2.5Vout, 3.5Vin min), BD730L05G-C (3.0Vout, 3.5Vin min), BD733L05G-C (3.3Vout, 3.8Vin min) and BD750L05G-C (5.0Vout, 5.6Vin min). Output voltages are ...

The USB Implementers Forum has certified a USB-C source-sink IC pair and the associated reference designs for 140W (28V 5A) USB PD EPR (USB power delivery extended power range). “The new ICs extend the range of a universal charger to 140W,” according to STMicroelectronics, which has created the ICs and the designs. “Now, a single ac-dc adaptor can charge equipment ...

Toshiba has introduced a brushless dc motor driver that supports ASIL-D for functional safety in vehicles. Designed in accordance with ISO 26262 (2nd edition) and AEC-Q100-qualified, TB9083FTG is aimed at electric power steering, electric braking and shift-by-wire transmissions. “A built-in fail-safe safety relay pre-driver complements the three-phase pre-driver,” according to the company, and the “SPI communication interface features an integrated ...

The OPS-260 series is the latest addition to the OCS/ODX/OVX series of rugged dc-ac inverters by Premium PSU available from Relec Electronics. The inverters are designed for harsh environments and outdoor use. Suitable for railway applications, it is It is certified to EN50163:2006 (supply voltages of traction systems), EN50124-2:2017 (insulation co-ordination over-voltages and related protection) with protection against transient over-voltages, and ...

Power modules from Vicor are now available from Avnet, following a global distribution agreement. The agreement means that customers can access Vicor’s power modules through the distributor’s design and supply chain. Commenting on agreement, David Krakauer, vice president of the industrial business unit and corporate marketing at Vicor said: “Working with Avnet will better position Vicor to bring our highly ...

February is definitely the month for automotive high and low-side drivers, proved beyond doubt as Diodes has just followed Rohm, Toshiba and STMicroelectronics with its contribution: a protected 4A (25A pulsed) high-side switch. Called ZXMS81045SPQ, it operates across 5 – 28V (41V abs max) and responds to both 5V and 3.3V logic inputs. Packaging is SO-8 with an exposed heat sinking ...

It seems to be the week for high and low-side driver announcements, with STMicroelectronics now following on from Toshiba and Rohm. ST’s offering are, like Rohm’s, for automotive use. They are single, double and quad high-side gate drivers in a common 6 x 4.9 x 1.7mm gull-wing thermal pad package, “with pin assignments that simplify scaling circuit designs to add ...

Rohm has released one and two channel 40V low-side switches with AEC-Q100 qualification for automotive and industrial use. BV1LExxxEFJ-C (single-channel, 4.9 x 6 x 1mm HTSOP-J8) and BM2LExxxFJ-C (dual-channel, 4.9 x 6 x 1.65mm SOP-J8) “are suitable for systems such as car body control, engine and transmission control units, LED lighting modules or industrial programmable logic controllers”, according to the ...