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M38045F1HKP датащи(PDF) 244 Page - Renesas Technology Corp

номер детали M38045F1HKP
подробное описание детали  8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  387 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M38045F1HKP датащи(HTML) 244 Page - Renesas Technology Corp

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APPLICATION
2.6 PWM
Rev.1.00 Jan 14, 2005
REJ09B0212-0100Z
3804 Group (Spec.H)
2.6.3 PWM output circuit application example
<Motor control>
Outline : The rotation speed of the motor is controlled by using PWM (pulse width modulation) output.
Figure 2.6.5 shows a connection diagram ; Figures 2.6.6 shows PWM output timing, and Figure 2.6.7
shows a setting of the related registers.
Fig. 2.6.5 Connection diagram
Specifications : • Motor is controlled by using the PWM output function of 8-bit resolution.
• Clock f(XIN) = 5 MHz
• “T”, PWM cycle : 102
µs
• “t”, “H” level width of output pulse : 40
µs (Fixed speed)
✽ A motor speed can be changed by modifying the “H” level width of output pulse.
Fig. 2.6.6 PWM output timing
P56/PWM
3804 group
(Spec. H)
D/A converter
Motor driver
M
PWM output
t = 40
µs
T = 102
µs



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