Power

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Power supply AC adapter receives medical certifications

Power supply AC adapter receives medical certifications
GlobTek has announced Intertek ETL certificates and reports for its Medical (60601-1) Power Supply AC Adapter series WR9QA1000USBNMEDRVB GTM41078-0605-USB. The unit is certified to 2MOPP (and 2MOOP), referring to two independent systems of insulation protecting the patient from dangerous voltages. A single insulating component can receive this rating based on extensive testing.
1st April 2015

DC/DC controller features a 70ms power-up time

DC/DC controller features a 70ms power-up time
A dual output synchronous step-down DC/DC controller, which features an I²C-based PMBus interface for digital power system management, has been introduced by Linear Technology. The LTC3887 differs from the previously released LTC3880 with an enhanced feature set that includes a faster 70ms power-up time, higher output voltage capability and a fast ADC mode that provides an 8ms update rate for one parameter. 
31st March 2015

3.5kW AC to 48V DC rectifier is housed in a 1U module

The industry’s first compact 3.5kW AC to 48V DC rectifier in a 1U module has been introduced by GE. Compared to traditional 2-3kW rectifiers housed in similar 1U rack or cabinet mountings, the CP3500 provides a higher power-to-space ratio. 
31st March 2015


Low capacity battery charger offers choice of three charging modes

Many small connected devices, such as wireless headsets, wearable devices, connected bracelets and smart watches, require low-power optimisation. Dolphin Integration directly addresses low-capacity Li-Ion or Li-Po batteries with its recently-released low-power battery charger. The BC-Livingstone.01 can charge a single-cell battery from all kinds of USB adapters, with a maximum current of 500mA.
31st March 2015

Dual port USB V-Charger is designed for mobile devices

Dual port USB V-Charger is designed for mobile devices
Designed to charge compatible electronic devices such as tablets, e-readers, smartphones, digital cameras and gaming devices, Carling Technologies has announced the dual port USB V-Charger. Providing a total current of 3.15A from a 12-24V input, the V-Charger delivers fast charging times even in extreme temperatures from -40 to +80°C.
30th March 2015

Bi-directional converter targets energy storage & recycling

Bi-directional converter targets energy storage & recycling
A bi-directional converter, suitable for energy storage systems with rechargeable batteries, has been introduced by TDK-Lambda. The EZA2500-32048 is a 2500W digitally controlled, compact 1U power supply that can automatically change conversion direction from high voltage dc sources, powered by solar or wind, to 48VDC batteries and vice versa.
30th March 2015

Power supplies suit PCBs with a limited space

Power supplies suit PCBs with a limited space
Power supplies which are ready to be soldered onto a PCB have been released by Mean Well. The IRM-45 and IRM-60 devices are rated for 45 and 60W, respectively, and operate from a 85-264VAC input. Both a PCB mounting type and a screw terminal type power supply are available, which measure 87x52x29.5mm and 109x52x33.5mm, respectively. These dimensions, combined with a no load power consumption of less than 0.1W, make the power supplies suitable for PCBs with limited space. 
30th March 2015

Synchronous buck DC/DC IC design

Besides the power efficiency, a key performance requirement for point of load power supply ICs is the transient performance. Sudden changes in the current drawn by the load (for example, an FPGA) require a fast response from the power supply. Such fast variations of the output current, however, cause transient spikes on the output voltage, whose amplitude and duration depend on the transfer function of the regulation loop.
29th March 2015

Digital Control versus Management

Digital power control and management have some distinct and clear advantages, but what can the end-user expect when using a power supply with these features? By Shane Callanan, Director of Applications Engineering Manager, Excelsys Technologies
27th March 2015

Transimpedance amplifier suits metro applications at 100Gb/s

A dual channel linear Transimpedance Amplifier (TIA) for next-gen coherent receiver applications has been introduced by M/A-COM Technology Solutions. The MATA-003806 has transimpedance gain which can be adjusted from 100Ω up to 10KΩ with manual and automatic gain control modes of operation. Input and output peak detectors are available for RSSI and AGC functionality.
27th March 2015


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