Monthly Archives December 2013

SMPS800/1kW

The power source is a full-bridge power converter based on  a ETD49 core.

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*The pulse modulator control circuit is provided by SG3525 and NCP5181 power mosfet drivers without power factor correction.

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The SMPS800/1KW also features an advanced over-current protection which limits the output current  in case of temporary overload.

When the overload condition occurs for a longer time, the supply will enter hiccup mode until the overload disappears.

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The protection is set at 9 Amps. The voltage drops from 120Vcc to 113Vcc in a full load.

Large capacitors low ESR from Nichicon are used in the secondary stage

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This feature combined with large primary electrolytic buffer capacitors leads to the capability of delivering high dynamic headroom power to the connected amplifier.
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The sound will ne...

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