Changes between Version 213 and Version 214 of wade/embedded


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Timestamp:
Jul 3, 2012, 3:43:33 PM (12 years ago)
Author:
wade
Comment:

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  • wade/embedded

    v213 v214  
    236236   * 相關產品：康舒、http://www.sapido.com.tw/CH/product_powerline.htm#plrouter
    237237 * Power over Ethernet, Poe：透過 RJ45 未使用的四條線傳輸 DC 。http://en.wikipedia.org/wiki/Power_over_Ethernet
     238 * Power usage effectiveness, PUE：用電效率。http://en.wikipedia.org/wiki/power_usage_effectiveness?;r=9udatw39070
    238239 * Pulse Width Modulation, PWM：[http://jyhshin3.blogspot.com/2009/04/pwm-pulse-width-modulation.html 參考1]、[http://www.eettaiwan.com/ART_8800251852_617739_TA_6308d0d4.HTM 參考2]
    239240 * Pyroelectric Infrared Radial Sensor, PIR Sensor：熱釋電紅外線感測器。利用溫度變化特徵探測紅外線的輻射。