• Clayton

7.5, 9, 12v 3A / 15v 1A PSU Design

This is a brand new design using dual Analog Devices fast transient response low noise regulators. Using dual parallel regulators has enable the noise level to reduced down to around 12 uV RMS.

The regulators are state of the art with some amazing features. eg. Actual semiconductor die temperature monitoring & fully adjustable current limiting. The output is user adjustable via a rear panel voltage selector switch. It has short circuit & thermal over load protection. It runs from 12v 6A potted external EI core transformer. EI core transformers have much lower bandwidth than the more common toroidal types so are better for digital equipment as they let less mains noise through. The bridge rectifier is a discreet type using very high spec low noise Schottky diodes. This is followed with a massive total of 25,000 uf main filter capacitance. There is also a RC snubber network after the bridge rectifier to reduce noise further. The diodes & regulator are thermally coupled to the aluminium case which keeps internal temperatures low. The DC output lead will be custom fitted with the correct barrel plug to suit your device. All parts are of a high quality & sourced through Element 14 or RS Components.

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