Power

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IP65 industrial chargers protect batteries during extended charging

IP65 industrial chargers protect batteries during extended charging
Lincoln-based PSU manufacturer VxI Power has introduced a new range of battery chargers that have been designed for use in industrial applications. As well as offering environmental protection to IP65, the BCL series chargers produce a regulated and filtered charging voltage that allows them to be connected to a battery for extended periods without overcharging or damaging the battery.
29th November 2007

4 MHz Synchronous Step-Down DC/DC Converter Delivers Up to 1.8A

4 MHz Synchronous Step-Down DC/DC Converter Delivers Up to 1.8A
Linear Technology has announced the LTC3568, a high efficiency, 4MHz, synchronous buck regulator that delivers up to 1.8A of continuous output current from a 3mm x 3mm DFN package. Using a constant frequency and current mode architecture, the LTC3568 operates from an input voltage range of 2.5V to 5.5V, making it ideal for Li-Ion/Polymer battery inputs as well as 3.3V or 5V inputs for point-of-load applications. It can generate output voltages as low as 0.8V, enabling it to power the latest generation of low voltage DSPs and microcontrollers. Its switching frequency is programmable from 850kHz to 4MHz, enabling use with tiny, low cost ceramic capacitors and inductors less than a 1mm in height, providing a highly compact solution footprint.
29th November 2007

Low-voltage voice-coil motor driver IC with I2C interface

Low-voltage voice-coil motor driver IC with I2C interface
The new A3904 from Allegro MicroSystems Europe is said to be the first in a series of voice-coil motor driver ICs designed for camera auto-focus and zoom applications. Featuring a built-in I2C serial interface for precise high-speed digital programming with only two control lines, the new device features an operating voltage range of 2.4 to 5.5 V and a maximum output current of 127 mA. Output current is programmed via the I2C interface in 500 µA increments with clock rates up to 400 kHz.
29th November 2007


National's Switching Regulators available from RS

RS Components has announced that it will distribute a new range of ten Buck switching regulators, launched by National Semiconductor. The new line of LM201xx and LM202xx synchronous Buck regulators includes 2A, 3A, 4A and 5A output current devices. There are ten synchronous Buck regulators, providing high-efficiency DC-DC power conversion for point-of-load power supply designs. The regulators feature a variety of input voltages and output currents, offering a combination of power sequencing, adjustable switching frequency and clock synchronisation options.
29th November 2007

Inverters from Unipower provide up to 1500VA/1200W

Inverters from Unipower provide up to 1500VA/1200W
UNIPOWER announces a new series of hot-swap, high power density telecom inverters. The INV1000 Series are 1000VA/800W and 1500VA/1200W sine wave inverter modules which operate from a 48VDC input and provide either a 115 or 230VAC nominal output. Power density is 10.5VA/in³. The design uses an advanced DSP controlled architecture to produce a very low distortion 50 or 60Hz sine wave at efficiency levels of 90% and better.
28th November 2007

DC-input bulk front-end power modules from Emerson

DC-input bulk front-end power modules from Emerson
Emerson Network Power has launched four DC-input bulk front-end power modules for systems that use distributed power architectures. The modules are the latest additions to the company's popular DS series of power supplies, which until now only offered AC-input options. The new DS450DC, 550DC, 650DC and 850DC modules all feature a very wide 40 to 72 Vdc input voltage range, which is ideal for telecom and central office applications operating from 48 V battery plants. All four modules produce a main +12 Vdc output, together with an auxiliary 'always-on' +3.3 Vdc output for applications that require standby operation.
28th November 2007

3-channel regulator allows mobile device designers to extend system functionality

3-channel regulator allows mobile device designers to extend system functionality
AnalogicTech has introduced the AAT2504, an adjustable 3-channel regulator that combines a step-down converter with two low dropout linear regulators (LDOs). Targeted at mobile devices with rapidly changing feature sets, the AAT2504 allows designers to extend system functionality and still benefit from power management integration.
28th November 2007

Power-One joins Climate Saving Computing Initiative

Power-One joins Climate Saving Computing Initiative
Power-One has announced that it has joined the Climate Savers Computing Initiative (CSCI) as an Associate Member. The goal of the CSCI is to bring together industry, consumers, and conservation organizations to significantly increase the energy efficiency of computers and servers. CSCI Board of Director members include: Dell, Electronic Data Systems, Google, Hewlett Packard, Intel, Lenovo, Microsoft, Pacific Gas & Electric, and the World Wildlife Fund.
28th November 2007

Emerson Network Power signs with Avnet

Emerson Network Power and Avnet Electronics Marketing have signed a global distribution partnership. Under the terms of the new agreement, Avnet will distribute - on a global basis - the full line of standard and modified standard ac-dc and dc-dc power supplies produced by the Embedded Power business of Emerson Network Power, which encompasses the Astec and Artesyn branded products.
27th November 2007

Power Management IC from TI maximises energy in Multi-Kilowatt Systems

Power Management IC from TI maximises energy in Multi-Kilowatt Systems
Texas Instruments has introduced what it says is the industry's first single-chip, interleaved power factor correction (PFC) control circuit for multi-kilowatt communications, server and industrial systems. The new UCC28070 two-phase, average current-mode controller allows designers to simplify power design, increase system reliability and achieve a greater than 0.9 power factor rating, which improves energy efficiency.
26th November 2007


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