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.

Three-phase BLDC controller and MOSFET driver IC

Allegro MicroSystems Europe has unveiled a three-phase brushless BLDC motor controller for use with N-channel external power MOSFETs. The AMT49413 incorporates much of the circuitry required to design a cost-effective, three-phase motor drive system with maximum supply voltages up to 50 V.

No-Opto flyback regulator operates at 150°C

The H-grade versions of the monolithic flyback regulator, the LT8304/-1, from Linear Technology operates for junction temperatures ranging from -40°C to 150°C. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no opto-coupler or third winding for regulation.

140W buck-boost regulator is ‘best in class’

Vicor’s Cool-Power ZVS buck-boost regulator portfolio has been expanded with the addition of the PI3740. Delivering up to 140W and up to 8A with an efficiency of up to 96%, the device accepts inputs in the range from 8 to 60V DC, producing a regulated output ranging from 10 to 50V DC.

Circuit protection controller

A circuit protection controller from Linear Technology has been developed to ensure safe voltage and current levels for 2.5V to 60V electronics in battery-powered automotive, industrial and portable systems. According to the company, the LTC4368 replaces fuses, transient voltage suppressors and discrete circuitry, shielding electronics from overcurrent and over, under and reverse voltages.

Compact 75V DC input EMC filter is rated at 50A

The RDEN-048050 48V DC nominal EMC filter rated at 50A has been introduced by TDK. Enclosed in a compact metal case, the filter uses stud terminals for ease of connection. Excluding the terminals, the filter measures 90 x 60 x 30mm.

AC/DC modules provide high power density

Luso Electronics has introduced Qualstar’s N2Power branded XR125RE and XR125 AC/DC power supplies in the UK and Ireland. The modules are said to provide the highest power density at 125W power output.

Regulator protects load by tripping power source

The LTM4636-1 from Linear Technology is a 40A to 240A scalable step down µModule switching regulator. The part incorporates protection circuitry that trips a circuit breaker in the event of overvoltage or over temperature fault conditions to protect itself, the PCB and loads – including high current low voltage processors, FPGAs, GPUs and ASICs.

No-opto flyback regulator delivers up to 15W

The LT8315 from Linear Technology is a high voltage monolithic flyback regulator that is said to simplify the design of an isolated DC/DC converter. By sampling the reflected isolated output voltage across the third winding on the power transformer, the part requires no opto-isolator or LT1431 for regulation.

DMOS transistor arrays with data storage function

A new generation transistor array has been launched by Toshiba Electronics Europe for applications such as LED lighting and industrial, high voltage signal transmitters. The TBD62089APG incorporates 8bit, D-type flip flop circuits that support a data storage function.

I²C battery monitor measures state of charge parameters

The LTC2944 multicell battery monitor from Linear Technology makes direct measurements of 3.6V to 60V battery stacks. Level shifting circuitry on the supply and measurement pins is not required to interface with multicell voltages, so total current consumption is minimised and measurement accuracy is preserved.

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