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.

USB-C solutions supporting USB power delivery 3.0

Cypress Semiconductor has announced that its USB-C controller portfolio is now able to support the latest USB Power Delivery (PD) 3.0 specification enabling improved end-to-end power delivery and charging solutions for laptop and mobile devices.

Buck regulator generates 0 to 14.5V VOUT

The LTC3623 from Linear Technology is a ±5A high efficiency, current mode synchronous buck regulator whose output is adjustable from 14.5V to 0V. The regulator uses a 50µA current reference, combined with a single resistor, to set the output voltage for all of the regulators.

µModule regulator with a common heat sink

The LTM4631, a dual 10A or single 20A µModule step-down regulator from Linear Technology, is available in a 1.91mm LGA package measuring 16 x 16mm. The LTM4631 can be placed on a PCB, close to its load, such as an FPGA, whilst sharing one heat sink.

Buck-boost regulators for battery powered portables

The ISL91127 and ISL91128 buck-boost regulators from Intersil feature 4.5A switches, 96% efficiency, and a compact footprint suitable for system power or powering the peripherals in battery-operated devices. They are said to offer the industry’s lowest quiescent current of 30µA for superior light load efficiency.

Eight-channel DC/DCs for multi-rail systems

The LTC3374A from Linear Technology is a highly integrated general-purpose power management solution for systems requiring multiple low voltage power supplies. The device can be configured to provide two to eight independent regulated outputs with 15 possible output current configurations and is suitable for a variety of multichannel applications, including industrial, automotive and communications systems.

Highest power density claimed for AC/DC supplies

Ultra small AC/DC power supplies from Qualstar are said to provide the highest power density amongst commercially available devices at their rated output of 160W. The supplies, available from Luso Electronics, are said to be suitable for broadcast, storage and network products and for applications which require ‘significant power’ within a very small footprint.

DC/DC converter range boasts 92% efficiency

The JWL and JSK series of regulated 40/50W DC/DC converters from XP Power is said to offer a typical efficiency of up to 92%. Supplied in metal cases and with a variety of input voltage ranges and single or dual output combinations, both series have a footprint of 51 x 25mm footprint, with a standard pin out.

Compact automotive grade LDO regulators

Two low dropout regulator families have been added to Rohm’s LDO portfolio. With its miniaturised package, the BUxxJA2MNVX-C series is said to be the smallest automotive-grade LDO regulator, whereas the BD7xxLx series provides quiescent current features.

DC/DC converter MGJ1 powers gate drives

The MGJ1 1W DC/DC converter series has been manufactured by Murata Power Solutions. These compact devices are suited to driving high and low-side gate circuits, such as those using IGBTs and SiC MOSFETs.

Active bridge technology for Ethernet-based IoT devices

The first member of Fairchild’s next-generation GreenBridge active bridge quad MOSFET technology has been launched. The FDMQ8205 is said to suit Power Over Ethernet applications (POE), such as security cameras, wireless access points, LED lighting and other powered devices.

M12 Power L-coded offers more power

The M12 Power has been launched in the UK by HARTING. The connector is said to offer sufficient power carrying capabilities and a smaller design footprint, allowing users to save on both space and number of interfaces.

120W DC/DC converters for harsh environments

12V, 24V and 28V output HQA DC/DC converters have been announced by TDK. Packaged in a ruggedised quarter brick form factor, the encapsulated HQA120 models can deliver 120W output power and its input ranges from 9 to 40V. These 89% efficient converters are suitable for use in COTS, communications and industrial equipment.

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