Power
Programmable power supplies deliver 650W to 3000W
Programmable power supplies that can deliver a variety of single output voltages from 5V to 60V and from 650W to 3000W of power are on sale at Luso Electronics. The Qualstar N2Power branded PL series is ideal for power hungry broadcast, storage and networking products. It is also suitable for the industrial, gaming and instrumentation markets employing increasingly energy intensive FPGAs, ASICs and microprocessors.
Battery-backed power supply provides up to 155W
Designed for applications where constant power is critical, such as security systems, the PQE series of AC/DC battery-backed power supplies has been introduced by Powersolve. The PQE series accepts a universal AC input and provides one to three DC outputs of 75, 100 or 155W with battery charger. They can be used with 12 and 24V battery systems.
Motor controllers feature digital DC drive technology
A line of DC motor controllers, which incorporate digital DC drive technology, has been introduced by Sprint Electric. The line includes a wide range of DC motor control, with over 450 models covering both one-phase and three-phase, regenerative and non-regenerative DC motor applications, together with field controllers, digital slip ring motor controllers and external thyristor stack controllers.
Voltage regulator avoids grid expansion costs
At the Hannover fair, AEG Power Solutions introduced a voltage regulator designed for low voltage 400V electricity supply grids. The Thyrobox VR solves the problems created by fluctuating renewable power feed-in of voltages going out of acceptable tolerance bands.
Power management as a challenge to the wearable medical devices design
One of the key elements of the Farnell element14 Sudden Impact design challenge involved trialling wearable health solutions. The finalists of the undertaking, when put to the test, have unanimously identified a major challenge – power management. It’s been observed that the process of collecting and analysing data over long periods of time has had a significant impact on energy consumption in the competitors’ sport-related desi...
Storage method enables batteries with higher lithium ion densities
An interdisciplinary team of researchers from the Karlsruhe Institute of Technology (KIT) and KIT-founded Helmholtz Institute Ulm (HIU) has pushed the development of lithium ion batteries further with the announcement of a cathode material based on a new storage principle, as a result of which energy storage densities can be increased beyond those of systems known so far. The research material is presented in the journal Advanced Energy Mate...
Cree announces large signal model accuracy
Cree has released an application note describing the accuracy of its large signal models for RF power transistors, which allow RF design engineers to reduce PA design iterations, design time and development costs.
Full brick sized power supply offers high efficiency
Requiring no external components, the ASB110 is a complete AC/DC power supply module from XP Power. The full brick sized power supply offers a very high efficiency of 91%. The base plate cooled power supply is aimed at ITE and industrial customers, providing 110W of DC output power from a universal AC input.
Compact AC/DC supplies offer versatile triple output
TDK has introduced the TDK-Lambda CUT75 series of 75W PCB type, triple output AC/DC power supplies, which are 64% smaller, lighter weight and more efficient than the previous generation JWT75 series. With an efficiency of up to 85%, the CUT75 series is suitable for the medical and general industrial equipment markets.
Ferrite material experiences low losses at high frequencies
Characterised by low losses at high frequencies, the N59 ferrite material has been introduced by TDK. The material was developed specifically for power supplies and frequency converters that operate with fast-switching power semiconductors on a GaN basis. Optimised for a frequency range from 700kHz to 2MHz, the ferrite material reaches its maximum transmissible power at a switching frequency of 2MHz and an operating temperature of 100°C. The ...