This design (and onwards) starts the power supply with a soft switch meaning a low voltage pulse triggers the main SMPS circuit.
This pulse can be given
1. manually as when we start the soft push power-on button or alternatively
2. automatically by the on board circuitry (involving BIOS), based on setting stored in BIOS setup.
On 3/14/06, ..// sea wolf //.. <
bananas4arsenal@xxxxxxxxxxx
> wrote:
I always thought this was down to a power surge going thru to the
motherboard and effectively shorting it into booting.
Can anyone correct me?
..// sea wolf //.. your are right in literal sense - it does happen like this but that surge is in fact a tiny miniscule electronic pulse that is checked against a hell of a lot of logic and then qualified to short that soft switch to power on the main SMPS and bring a smile on user's face - "see my compie starts automatically".
--
Anil Kumar Shrama
