etemu / wilssen

Wireless / Wind Logging System for Sourcing ENergy - "Wilssen" is a modular controller for e.g. a wind turbine, it monitors all parameters like phase voltage and efficiency when the wind turbine is generating power.
6 stars 2 forks source link

Design a PSU with controlled switched ouputs #14

Open etemu opened 11 years ago

etemu commented 11 years ago

Power supply unit with multiple lanes, one for each peripheral. To keep the power demand down, it makes sense to shut down any device which is not used atm. Most significantly, the microSD card.

shulter commented 11 years ago

My first thought was to use p-channel MOSFETs for the peripherals. The switched outputs may be obsolete if all the devices can be shut down, for example with an input-enable pin or a software command.

But I guess at least the OpAmps in the input stage can't be disabled, right?