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.

LDO regulators for sensitive loads

Intersil has unveiled two new high performance, single output low-dropout (LDO) voltage regulators that provide enhanced dropout and transient performance for noise sensitive loads.

Converter with integrated coulomb counter consumes 680na quiescent current

Linear Technology has announced the LTC3335, a nanopower high efficiency synchronous buck-boost converter with an onboard precision coulomb counter. It is said to deliver up to 50mA of continuous output current with 680nA of quiescent current and programmable peak input currents from 5 to 250mA, the device is suited for a variety of low power battery applications.

Additional output voltages extend power module series

TDK has announced an extension to its PH-A280 series of high voltage input DC/DC converters. Capable of operating from 200 to 425Vdc, the 3.3, 15 and 28V output power modules are suitable for use in data centres, telecommunications and renewable energy applications utilising a 380V nominal high voltage DC bus.

Artesyn power supplies offer cost-competitive reliability and efficiency

Artesyn Embedded Technologies has announced the LCB range of enclosed AC/DC power supplies, consisting of 23 models that are said to provide a reliable, low cost solution for general-purpose industrial applications requiring a single low voltage DC supply. The power supplies are claimed to combine typical efficiency of 89 or 90%, with a no-load power consumption of 0.5W.

1kW ultra-compact pulsed GaN X-band SSPA

Diamond Microwave has announced a ten-fold increase in its power output capability with the addition of a 1kW X-band model to the company’s range of GaN-based pulsed solid-state power amplifiers (SSPA).

Automotive inductive-load driver reduces space and cost

Diodes Incorporated has introduced the DMN61D8LVTQ dual-channel inductive-load driver, designed for automotive inductive load-switching applications, such as window, door latch and antenna relays, solenoids and small DC motors. The on-chip integrated Zener diodes and bias resistors are claimed to eliminate the need for external components, saving cost and reducing the PCB footprint.

60V power MOSFETs tailored for high efficiency

STMicroelectronics has extended its trench-based STripFET F7 series of low-voltage MOSFETs with the introduction of 60V devices to enable telecom, server, and desktop-PC power supplies, as well as industrial power supplies and DC/DC converters in solar micro-inverters, to meet energy-efficiency specifications and maximise power density.

Industry's fastest isolated current sense amplifier

Silicon Labs has introduced an isolated current sense amplifier claimed to deliver the industry's highest bandwidth and lowest signal delay. The Si8920 isolated amplifier provides a current shunt measurement solution suitable for power control systems operating in harsh environments such as industrial motor drives, solar inverters, high-voltage power converters, uninterruptible power supplies and electric/hybrid-electric vehicle systems.

High efficiency, slim-line DIN rail power supplies

Stadium Power has announced the introduction of two high efficiency, slim-line DIN rail mounted power supplies. The 120W DIN-120 and 240W DIN-240 units provide a single output of either 24 or 48Vdc and are aimed at industrial applications, including process control and building automation.

PHS capacitors for high voltage management applications

Kemet has released the T550 and T551 series Polymer Hermetic Seal (PHS) capacitors. The components have been designed for high voltage management applications and feature conductive organic polymer as the cathode plate of the capacitor instead of the traditionally used MnO2 or wet electrolyte. This is said to result in low ESR and improved capacitance retention at high frequency and low temperature.

Power to board solutions deliver higher current while saving space and weight

Amphenol's RADSOK Power to Board product line is said to deliver high current and single-point connections to PCBs to achieve greater system integration. The RADSOK Power to Board product line has a current carrying capability of up to 200A and thanks to its hyperbolic lamella socket contact construction, delivers higher current at lower temperatures than traditional contact systems.

Power MOSFETs make electrical appliances more compact and durable

Infineon Technologies AG has extended its StrongIRFET Power MOSFET family providing space-saving and rugged solutions for powertool applications. The Logic Level StrongIRFETs can be driven directly from a microcontroller, saving space and cutting costs. Additionally, the rugged MOSFETs help lengthen the service life of electronic devices.

Integrate wireless charging into product designs in a matter of hours

Integrated Device Technology Inc. (IDT) has introduced turnkey wireless power kits that are said to make integrating wireless charging simple, affordable and practical for a range of consumer electronics. The Qi-compliant transmitter and receiver reference kits are claimed to deliver plug-and-play integration, enabling engineers to incorporate wireless charging capabilities into their designs in a matter of hours.

Silicon Labs' Si88x2x modules provides dual isolation plus DC/DC converter

Mouser Electronics now stocks the Si88x2x Dual Digital Isolators from Silicon Labs. The Si88x2x modules integrate digital isolator technology with an on-chip isolated DC/DC converter to provide regulated output voltages of 3.3 or 5.0V at peak output power of up to 5W with external power switch. Data rates up to 100Mbps are supported, and propagation delays of 23ns (max) are achieved.

Hyper-fast rectifier offers 600V 8A for PFC applications

Diodes Incorporated has introduced the DSR8F600 600V 8A hyper-fast rectifier, designed for use as a boost diode for power-factor correction (PFC) and continuous conduction mode applications. It can be used in switched-mode power supplies that need to deliver a high output, greater than 75W, in end-equipment such as flat-panel TVs, servers and telecoms systems.

Power solution delivers 20x faster time-based power analysis

Cadence Design Systems has announced the Cadence Joules RTL Power Solution. This register-transfer level (RTL) power analysis solution enables SoC design teams to analyse power consumption accurately during design exploration. Built on a multi-threaded architecture, the Joules RTL Power Solution is claimed to deliver 20x faster time-based RTL power analysis when compared to other methods.

ST unveils its DOCSIS 3.1 chipset solution

STMicroelectronics has announced the STiD325, its next generation DOCSIS 3.1 device for data gateway applications. It can also be used as cable modem, eMTA (embedded Media Terminal Adapter) or as a front-end device for headed cable multimedia gateway applications.

KEMET expands polymer capacitance portfolio

KEMET has announced the release of its M55 Module Polymer Hermetic Seal capacitor portfolio. KEMET's M550 and M551 Modular Series are designed for mission critical high capacitance and voltage applications and are manufactured by placing T550 or T551 Polymer Hermetic Seal capacitors in parallel. The M55 Series is suitable for telecom, computer, defence and aerospace applications.

PMBus Protocol added to Xsolo series

Excelsys Technologies has added PMBus communication capabilities to its Xsolo series of 1U, single-output power supply units (PSUs). Xsolo units, equipped with an optional I2C digital interface, can now be remotely monitored by system supervisory equipment using industry standard PMBus protocols.

Converter offers 93% efficiency

Linear Technology has released the LT8602, a 42V quad channel, current mode, monolithic buck switching regulator with a programmable power-on reset. The LT8602's synchronous rectification topology is said to deliver up to 93% efficiency and can be configured for micropower Burst Mode operation or pulse-skipping operation at light load.

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