4 November 2015Power Electronics / Power Management
Opto-Electronics
Exar expanded its offering of AC step driver solutions for LED bulbs with the introduction of the XR46073 – a two-step LED current controller with improved line regulation primarily for A19 LED bulb applications. The IC integrates two steps of current control to the LED strings, greatly improving the line regulation of the circuit by monitoring the line voltage and adjusting LED drive current proportionally. Also included in the 2 x 2 mm DFN package is over-voltage protection and over-temperature protection. During an over-temperature condition, the XR46073 smoothly and continuously reduces current to the LED string, reducing power dissipation in the process, until temperatures have stabilised at an acceptable level.
ABB’s Mission to Zero drives South Africa’s energy transition ABB Electrification Products
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ABB Electrification is charting a bold path towards a net-zero future with its Mission to Zero programme, a blueprint that combines energy efficiency, electrification, and digital innovation to accelerate the transition to clean energy.
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PV energy storage systems are evolving and DC power supplies, with their technical characteristics that are naturally compatible with new energy, have become a key carrier for improving system energy efficiency.
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The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
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The AS7058 by ams OSRAM is an integrated multi-vital sign monitoring device, which provides a complete photoplethysmogram, electrocardiogram, body impedance sensor, and electrodermal activity sensor.
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