专利名称：Crystal oscillator with resistorless feedback
biasing
发明人：Anand Kumar Sinha,Ashish Ojha,Ateet Omer旅游服务礼仪
尉迟恭和秦琼
申请号：US14614427
申请日：20150205
公开号：US09209747B1
公开日：皱纹的皱组词
20151208
专利内容由知识产权出版社提供
冬瓜虾仁汤的做法
电脑老是反复自动重启
专利附图：
果仁菠菜的做法
啥是云计算摘要：An oscillator includes an amplifier and a piezoelectric crystal coupled across a portion of the amplifier. A low pass filter (LPF) pass the common-mode voltage component of the crystal output signal. An auxiliary bias circuit us a shared LPF
component to charge a crystal load capacitor during start-up of the oscillator, and to provide a DC bias operating point to the oscillator driver transistor. A buffer amplifier receives the common-mode voltage component on the non-inverting input. The buffer amplifier output is coupled to both the inverting input and the drain terminal of the oscillator driver transistor such that the gate and drain DC bias voltages of the oscillator driver transistor are substantially the same. An automatic loop control circuit receives the crystal output signal and the common-mode voltage signal, and generates a bias control signal to bias the amplifier and the auxiliary bias circuit.
申请人：Anand Kumar Sinha,Ashish Ojha,Ateet Omer
地址：Noida IN,Lucknow IN,Kanpur IN
国籍：IN,IN,IN
代理人：Charles Bergere
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