Power Supplies

Analog Devices has created a fast power op-amp that can handle ±55V rails and ±1A outputs, with a digital control bus for setting internal parameters. Called ADHV4710, the output can swing ±52V with ±100mA loading, and its rails can vary down to ±12V. Despite being able to drive ±1300V/μs into 1nF, it is a voltage feedback amplifier, that can handle ...

Toshiba has introduced a set of industrial-grade 650V SiC mosfets in 8 x 8mm DFN packaging. Of the four new devices, the company picks TW054V65C as its poster child for low turn-on and turn-off losses: 122 ad 58μJ respectively when a pair are used in a 400V 20A half-bridge* – said to be ~55% and 25% less than the company’s ...

US car maker Rivian has signed up Infineon to supply traction inverter power modules, microcontrollers and power ICs for its ‘R2’ vehicle platform, expecting to start in 2026. The power modules will be in Infineon’s HybridPack Drive G2 format (pictured) and include both silicon and silicon carbide components. Along with these, Rivian has picked infineon’s established TC3x MCUs, not not ...

ABLIC claims that its S-19116 Series automotive high-voltage detector has the industry’s fastest detection response time of max. 6.8μs while achieving ultra-low current consumption of 2.0μA typ The detector is also claimed to significantly reduce system standby current. It comes in an  HSNT-6 (1.96×2.46×t0.5mm) package. Overvoltage protection is essential when supplying voltage from a battery through a regulator to MCUs ...

At PCIM in Nuremberg this week, Texas Instruments announced an automotive-qualified LLC controller for light electric vehicle charging, and demonstrated it in a three-stage ac-dc battery charger for electric two-wheelers. (LLC is an inductor-inductor-capacitor topology, see diagram) “But despite the benefits that the LLC topology can offer, including minimal standby power and low audible noise, electric vehicle manufacturers have been ...

EPC aims to displace silicon mosfets from secondary-side synchronous rectifiers with its latest 40V GaN power transistor, designed specifically for 48V to 12V LLC dc-dc converters. “With the EPC2366, and upcoming lower voltage parts, we are expanding the GaN beach-head across low-voltage applications that have long been dominated by silicon,” said EPC CEO Alex Lidow. Packaged in 3.3 x 2.6mm ...

At PCIM in Nuremberg today, Power Integrations revealed five 800V automotive power supply reference designs for its 1,700V InnoSwitch3-AQ flyback dc-dc converter IC: RDK-994Q – 35W 40 to 1kVdc input, 24V output, low-profile traction inverter gate-drive or emergency PSU RDK-1039Q – 18W planar transformer traction inverter gate driver or emergency PSU (pictured) RDK-1054Q – 120W planar transformer PSU to eliminate ...

Asahi Kasei Microdevices  (AKM) and Silicon Austria Labs GmbH (SAL) have completed a joint proof of concept for integrating a current sensor into a power module to be used in automotive applications such as traction inverters and DC-DC converters. The technology enables energy efficiency, as well as compact and lightweight design for high current applications using  SiC power devices. Market ...

Navitas Semiconductor is aiming at motors up to 600W with a GaN motor drive IC. “Specifically designed for motor drive applications, this integrated solution combines two GaN FETs in a half-bridge configuration with drive, control, sensing and autonomous protection,” according to the company. Called NV6288, it is a 650V part with two 120mΩ GaN HEMTs in an 8 x 10mm ...

Vishay has introduced a 5A 30V solid-state relay in a SOP-4 surface-mount  package. VOR1003M4T is an industrial-grade relay with a 1 Form A (single-pole normally-open) contact. On the output side there are back-to-back mosfets allowing ac or dc to be switched. Typical output-side figures are: 0.7Ω Rds(on), 500μs Ton, 100μsToff and <1μA leakage. These switching times are with 10mA drive ...