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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M32C/8A датащи(PDF) 195 Page - Renesas Technology Corp |
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M32C/8A датащи(HTML) 195 Page - Renesas Technology Corp |
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195 / 372 page  M32C/8A Group 16. Three-Phase Motor Control Timer Function Rev.1.00 Jul 15, 2007 Page 178 of 352 REJ09B0385-0100 16. Three-Phase Motor Control Timer Function The PWM waveform can be output by using timers B2, A1, A2, and A4. Timer B2 is used for the carrier wave control, and timers A4, A1, and A2 for the U-, V-, and W-phase PWM control. Table 16.1 lists specifications of the three-phase motor control timer functions. Table 16.2 lists pin settings. Figure 16.1 shows a block diagram. Figures 16.2 to 16.10 show registers associated with the three-phase motor control timer function. Table 16.1 Specifications of Three-Phase Motor Control Timers Item Specification Control method Three-phase full wave method Modulation modes • Triangular wave modulation mode • Sawtooth wave modulation mode Active level Selectable either active High or active Low Timers to be used • Timer B2 (Carrier wave cycle control: used in timer mode) • Timers A4, A1, and A2 (U-, V-, W-phase PWM control: used in one-shot timer mode): Short circuit prevention features • Prevention function against upper and lower arm short circuit caused by program errors • Arm short circuit prevention function using dead time timer • Forced cutoff function by NMI input |
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