All items tagged with power supply (30)

Keysight Introduces Smart Bench Essentials Connected Instruments

March 16, 2021 by audioXpress Staff

Keysight Introduces Smart Bench Essentials Connected Instruments

Keysight Technologies, the electronics test and measurement company that was spun off from Agilent in 2014, has launched a new portfolio of Smart Bench Essentials (SBE) lab bench instruments. These new solutions are targeted at remote access labs and teaching institutions that require a unified, powerful graphical interface with integrated data management and analysis, that can be configured, controlled, and monitored from a single screen, also allowing sharing instruments and data remotely with peers.

Microchip Releases First IEEE 802.3bt PoE to USB Type-C Power and Data Adaptor

March 2, 2021 by audioXpress Staff

Microchip Releases First IEEE 802.3bt PoE to USB Type-C Power and Data Adaptor

Microchip announced a Power-over-Ethernet (PoE) to USB-C adaptor with the highest power capability that converts both power and data while offering up to 60W USB output power via an Ethernet cable supported by PoE infrastructure. This solution simplifies installation by reducing dependency on AC infrastructure, and enables extending the installation reach of USB Type-C devices while supporting a variety of input PoE standards up to 90W and output power up to 60W.

The Capacitance Multiplier

February 17, 2021 by Bill Reeve

The Capacitance Multiplier

In this article for audioXpress, Bill Reeve helps us to make sense of a misunderstood circuit. A capacitance multiplier is useful as a power supply low-pass filter. It is commonly said that, like Miller capacitance, the capacitor’s value in this circuit is “multiplied” by the transistor gain (β) to lower the filter’s pole frequency. The transistor-enhanced filter does that and more, as the article explains in detail. This article, an excellent tutorial on analog circuit design, was originally published in audioXpress, August 2012.

Power Control Reference Design Enables a Secondary Side Microcontroller to Control Primary Power

January 7, 2021 by audioXpress Staff

Power Control Reference Design Enables a Secondary Side Microcontroller to Control Primary Power

Microchip announced a new reference design using its MCP1012 high voltage auxiliary AC-DC controller, demonstrating the ability to remove the independent bias power supply in many applications. The MCP1012 offline auxiliary device enables the system to transfer control of the power and duty cycle to a secondary MCU. The reference design includes a patented isolation technique called Inde-Flux transformer technology being licensed to Würth Elektronik eiSos.

Repairing Switching Mode Power Supplies

May 23, 2018 by Scott Dorsey

Repairing Switching Mode Power Supplies

In this article Scott Dorsey tells us how to repair Switching Mode power supplies. As he explains, "there are a lot of books and articles out there about how to design a switching supply, but not many on fixing them. As switching supplies become ubiquitous in electronic devices today, it becomes that much more important to understand how they work and just as importantly how they fail." This article was originally published in audioXpress, January 2018.

A New Low in Standby Power with Texas Instruments' new LLC Controller

October 23, 2017 by Cristina Costa

A New Low in Standby Power with Texas Instruments' new LLC Controller

Texas Instruments (TI) introduced a new inductor-inductor-capacitor (LLC) resonant controller with an integrated high-voltage gate driver that enables the industry's lowest standby power, as well as longer system lifetimes. The UCC256301 provides a cost-effective system solution that helps meet stringent energy-efficiency standards for a wide range of AC/DC applications in consumer electronics.

Merging Technologies Shows Expanded Merging+Range at RMAF 2017

October 2, 2017 by audioXpress Staff

Merging Technologies Shows Expanded Merging+Range at RMAF 2017

The latest MERGING+PLAYER, MERGING+NADAC and MERGING+POWER from Swiss digital audio experts Merging Technologies will be featured in a dedicated room at The Rocky Mountain Audio Fest (RMAF) 2017 in Denver. The late decision to take a room at the show was predicated by a change in US distribution and the desire to show the full range of networked audio products without conflict from other brands in the same room.

You Can DIY!: An Ecological Power Supply for Power Amplifiers

May 31, 2017 by Vincent Thiernesse

You Can DIY!: An Ecological Power Supply for Power Amplifiers

This article describes an improved design for a power supply dedicated to audio power amplifiers that exhibits ecological and economical qualities, ideal for audio enthusiasts. In this truly DIY project, easy to build, the author, Vincent Thiernesse, proposes a power supply dimensioned for 100 W RMS/4 or 8 Ω power amplifiers, that behaves like a resistive load with respect to the mains network. This project was originally published in audioXpress, June 2016.

Panasonic Introduces High-speed Gate Driver Dedicated to GaN Power Transistor X-GaN

November 8, 2016 by audioXpress Staff

Panasonic Introduces High-speed Gate Driver Dedicated to GaN Power Transistor X-GaN

Panasonic Corporation announced that it will start mass production of a high-speed gate driver (AN34092B) optimized for driving its GaN power transistor X-GaN in November 2016. The company will also start mass production of two types of X-GaN (PGA26E07BA and PGA26E19BA) and provide solutions in combination with high-speed gate drivers. The high-speed gate driver for X-GaN power transistors contributes to space and energy savings in power conversion applications.

Better Discernment with Linear Audio Volume 12, Now Available

October 17, 2016 by audioXpress Staff

Better Discernment with Linear Audio Volume 12, Now Available

Linear Audio Vol 12 is the 13th issue of a series of printed bookzines dedicated to technical audio and perception. Published every time Jan Didden things he has good enough content, Linear Audio is a vehicle for publishing technical information, developments and the state of the art of audio from a technical perspective. And this latest edition includes great articles by Chris Paul, Pierre Touzelet, Bill Waslo, Vincent Thiernesse, Hans Polak, Douglas Self and more…

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