W83793G Datasheet, PDF (72/131 Pages) Winbond – Winbond H/W Monitor

Temperature 1
Temperature 2
Temperature 3
Temperature 4
Temperature 5
Temperature 6
W83793G
The right graph give a picture of how the
mapping relationship is made by this setting.
Fan1
In this example, Fan2 retrieves information
from Temperature 1 and Temperature 2, and
Fan2
decide the next duty cycle applied to Fan2. But how
did it decide to speed up/slow down fan? Basically,
W83793G sorting the information comes from each
temperature sensor and SmartFan Controls. After
Fan3 _{sorting the information, W83793G will get}
something like, TD1 need to speed up fan, and
TD2 does not need so fast Fan speed; or TD1
Fan4 _{would no more need fast fan, and TD2 hopes to}
keep current fan speed. And after that, the
algorithm will make a decision to control fan by a
Fan5 _{very simple rule, which can expressed very simply}
in the following.
Fan6
Fan7
Fan8
Any Temp request
faster Fan??
If TD1 say, “I need faster fan”, and TD2 says, “No
fast fan needed”. W83793G will take request of
TD1 and start to speed up Fan. In short, W83793G
always prefers to pick the most critical request and
applies it to the related Fan.
Yes Speed Up
No
Any Temp request f
hold current speed??
Yes
Hold current
Speed
No
Slow Down
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