Power

Energy-saving DC-DC converter design must have two attributes - high efficiency over wide ranging load currents and low quiescent current in both standby and shutdown modes

Roy Allen provides an overview of the concepts required for successful paralleling of AC-DC front-end power supplies.

Operating reliably in extreme ambient temperatures is no small task for AC to DC power supplies with PFC, especially for indoor and outdoor-mounted equipment where compact size is mandatory.

Arizona-based CdTe solar cell firm First Solar expects to hit 12% efficiency in its thin film cells in the next four years.

Cardiff-based roll-to-roll solar cell maker G24 Innovations (G24) has raised a further $30m.

Beloved by politicians keen to show their green credentials, the Toyota Prius is the car other hybrids are judged against, but it may not be the most efficient around

Intel Capital is reported to be lining up a €24m ($37.7m) investment in Berlin-based Sulfurcell

Australian solar power generators have boosted output by 46%, by upgrading to multi-junction III-V/germanium solar cells, which are normally reserved for space

Ericsson has moved to digital feedback in an isolated DC-DC converter to squeeze 400W and 96 per cent efficiency from a quarter brick power supply, the BMR453. "There is no analogue feedback path, it is all digital," marketing director Patrick Le Fevre told Electronics Weekly.

Siliconix is claiming a lot of records for additions to its family of 2x2x0.8mm SC-70 power Mosfets: including one with 11m[ohm] on-resistance, formerly available only from TSOP-6 Fets which are twice the size.