Fan Speed Control with the EMC2102 Device
UPDATE = 100 ms
UPDATE = 400 ms
Figure 5.16 Default Step Size with Different UPDATE SettingsIn the next experiment (Figure 5.17, "Default UPDATE with Different Step Size Settings"), two different maximum step sizes, 16 and 63, were used. with the 63 STEP SIZE setting, the output takes less steps (updates) from 4000 rpm to 7500 rpm because it gives the fan more power to follow the desired rpm settings.
STEp SIZE
= 63
STEp SIZE
= 16
Figure 5.17 Default UPDATE with Different Step Size SettingsIn the last experiment, an extremely slow ramp rate is demonstrated. The UPDATE was set to maximum (1600 ms), and the STEP SIZE was changed to 01h (Figure 5.18, "Exceptionally Slow Rate"). Note the large scale of the “Time per division” in the figure.
SMSC EMC2102 | USER MANUAL |
Revision 0.2
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