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High Resolution Pulse Width Modulator
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1. Overview
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2. ePWM
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3. HR-PWM
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4. ePWM vs HRPWM
150MHz(6.67nsec)ÀÇ Å¬·°À» ±âÃÊ·Î °è¼öÇÏ´Â 16-bit ŸÀ̸Ӹ¦ ÅëÇØ, º¯Á¶ÁÖÆļö(Carrier Frequency) 1MHzÀÇ PWM ½ÅÈ£¸¦ »ý¼ºÇÒ °æ¿ì (ŸÀÌ¸Ó Up-count ±âÁØ)
16-Bit ŸÀ̸ÓÀÇ Áֱ⠷¹Áö½ºÅÍ °ªÀº
150(0x0096)
ÀÏ¹Ý PWMÀ¸·Î Á¦¾î °¡´ÉÇÑ ÃÖ¼Ò ÆÞ½º-ÆøÀº
100% / 150´Ü°è = 0.6666%
HR-PWMÀ¸·Î Á¦¾î °¡´ÉÇÑ ÃÖ¼Ò ÆÞ½º-ÆøÀº
MEP Scale factor 50 ±âÁØ
100% / (150´Ü°è 50½ºÅÜ) = ¾à 0.01333%
¸¸¾à, 35.123%ÀÇ ÆÞ½º-ÆøÀ» ±¸ÇöÇÏ°í ½Í´Ù¸é
ÀÏ¹Ý PWMÀ» »ç¿ëÇÒ °æ¿ì
34.66632% ¿Í 35.33298% Áß ¼±Åà °¡´É
HR-PWMÀ» »ç¿ëÇÒ °æ¿ì
35.11122% ¿Í 35.12455% Áß ¼±Åà °¡´É
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5. Mode
Edge Mode
RE(Rising Edge), FE(Falling Edge), BE(Both Edge)
Control Mode
Duty cycle control, Phase control
Sha¡¦(»ý·«)
6. Registers
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