English  |  正體中文  |  简体中文  |  Items with full text/Total items : 55241/89544 (62%)
Visitors : 10728024      Online Users : 16
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/53886


    Title: 數位可調式晶片振盪器
    Authors: 張佳陽;Chang, Chia-yang;陳柏璋;Chen, Po-chang;李揚漢;Lee, Yang-han;楊清淵;Yang, Ching-yuan
    Contributors: 淡江大學電機工程學系
    Date: 2004-02-21
    Issue Date: 2011-05-20 15:37:39 (UTC+8)
    Abstract: 一種數位可調式晶片振盪器,其包括:一電壓控制振盪器,其產生一振盪信號,接收一控制電壓用以調整振盪信號的振盪頻率,並且接收一工作電壓用以穩定振盪信號的振盪頻率;一參考電壓電路,其產生一參考電壓;一穩壓電路,其接收參考電壓,產生工作電壓;一數位調節電路,其接收一數位碼,調整控制電壓,並且接收工作電壓穩定控制電壓。一頻率偵測器,其接收振盪信號,一第一參考信號其具有一第一頻率,以及一第二參考信號其具有一第二頻率,其中當振盪信號的振盪頻率在第一頻率和第二頻率之間,則輸出一高位準比較信號,否則輸出一低位準比較信號;一可程式化計數器,其接收一時鐘信號觸發計數動作,用以產生數位碼;一可程式化控制器,其接收上述高位準比較信號,用以產生一致能信號使得頻率比較器保持高位準比較信號,並且使得可程式化計數器停止計數,保持數位碼;以及一可程式化記憶體,其接收致能信號,用以記錄數位碼。
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Patent

    Files in This Item:

    There are no files associated with this item.

    All items in 機構典藏 are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback