Power

Power electronics is a key element in the world of electronic design and engineering and electronic engineers need to have a thorough understanding of this area if they’re going to create successful products.

In this section, New Electronics keeps designers up to date with the latest developments in the power electronics market – everything from DC/DC converters to IGBTs to battery technology. In fact, New Electronics covers any power product that can go on a PCB.

Step down regulator delivers 93% efficiency

Linear Technology has announced the LT8630 – a 600mA synchronous step-down switching regulator. Its 3 to 100V input voltage range is claimed to make it suitable for 48V automotive systems, dual battery transportation, industrial and 36 to 72V telecom applications.

µModule regulator scalable to 180A

Linear Technology introduces the LTM4647, a 30A step-down µModule regulator. The LTM4647 includes the inductor, MOSFET, DC/DC controller and supporting components in a 9 x 15 x 5.01mm BGA package.

Open frame AC/DC power supplies for space constrained apps

CUI has announced a family of compact AC/DC power supplies in an open frame SIP package. The 3W and 5W configurations of the PBO series measure 35 x 11 x 18mm and the 3W models are also available in low-profile, right-angle versions measuring 35 x 18 x 11mm, making them suitable for applications with little vertical board space.

CMOS analogue comparators boost efficiency

STMicroelectronics has upgraded its 16V CMOS dual and quad analogue comparators. Using the latest process technology, the comparators are said to achieve a lower typical current consumption of 5µA per comparator, as well as faster propagation time and increased ESD capability of up to 4kV.

Intersil expands USB-C buck-boost battery charger family

Two USB-C buck-boost battery chargers have been introduced by Intersil that support bidirectional power delivery in ultrabooks, tablets, power banks and other mobile products. According to the company, the single-chip ISL9238 and ISL9238A battery chargers reduce customer bill of materials costs by up to 40%.

18V buck-boost DC/DC converter delivers 95% efficiency

The LTC3119, a synchronous current mode monolithic buck-boost converter, from Linear Technology is said to deliver up to 5A of continuous output current in buck mode from a variety of input sources, including single- or multiple-cell batteries, unregulated wall adaptors as well as solar panels and supercapacitors.

6-phase DC/DC controller for 12V to 48V automotive systems

According to Intersil, the 6-phase bidirectional Pulse Width Modulation (PWM) controller is the first designed to perform buck and boost power conversions between 12V and 48V automotive buses. A single automotive-grade ISL78226 is said to deliver up to 3.75kW at greater than 95% conversion efficiency, and is able to interleave in a modular master/slave architecture to deliver higher power.

Low power consumption from robust low side gate drivers

According to Infineon, the 1EDN EiceDRIVER family is compatible with MOSFETs, IGBTs and GaN based power devices. It claims that, compared to other single channel low-side gate driver ICs, the family has the lowest internal power consumption, adding that low-ohmic output stages translate into a 30% efficiency improvement.

Digital multiphase controller family

A family of 12 digital multiphase controllers has been launched by Intersil. The family, which is accompanied by a smart power stage, is said to feature the first digital solution with an Adaptive Voltage Scaling Bus (AVSBus).

Current sensor ICs with high precision programming

Allegro MicroSystems has launched a family of fully integrated current sensor linear ICs in a core-less package designed to sense AC and DC currents up to 100A. The family’s Hall sensor technology incorporates common-mode field rejection to optimise performance in the presence of interfering magnetic fields generated by nearby current-carrying conductors.

One, two or four outputs from one regulator

A quad output step down µModule from Linear Technology is configurable as a single, dual or quad output regulator. According to the supplier, this enables system designers to deploy one device to handle a range of voltage and load current requirements in FPGA, GPU, ASIC and processor-based applications.

First SMARC 2.0 module

Congatec has unveiled its first credit card sized modules for the new SMARC 2.0 specification. They are based on the newly released 14nm Intel Atom, Celeron and Pentium processors (code named Apollo Lake).

Express compact module features AMD G-series SoC

The EmETXe-a58M0 COM Express type 6 module released by Arbor Technology features the second generation AMD embedded G-Series SoC processor. Compared to the current SoC platform, the board is said to provide higher performance and a lower power draw due to an improved Jaguar+ CPU architecture and AMD Radeon 8000 graphics core.

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