參數(shù)資料
型號: 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強的超級I / O控制器,快速紅外線
文件頁數(shù): 17/173頁
文件大?。?/td> 965K
代理商: 37C672
APPLICATION
2.4 PWM
2-56
3802 GROUP USER’S MANUAL
Specifications : Motor is controlled by using the 8-bit-resolution PWM output function.
Clock f(XIN) = 5.0 MHz
“T,” PWM cycle : 102 s
“t,” “H” level width of output pulse : 40 s (Fixed speed)
V A motor speed can be changed by changing the “H” level width of output pluse.
2.4.3 PWM output circuit application example
(1) Control of motor
Outline : The rotation speed of the motor is controlled by using PWM (pulse width modulation) output.
Figure 2.4.5 shows a connection diagram, Figures 2.4.6 shows PWM output timing, and Figure 2.4.7 shows
a setting of the related registers.
Fig. 2.4.5 Connection diagram
V
Fig. 2.4.6 PWM output timing
PWM output
t = 40 s
T = 102 s
P56/PWM
3802 group
D-A converter
Motor driver
M
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