近水知鱼性>山药豆怎么吃专利名称:Frequency adjustable, zero temperature coefficient referencing ring oscillator circuit 发明人:Wen Li,Manny K. F. Ma
绣球花怎么扦插
了解他人申请号:US08/911897
申请日:19970815
李玙
公开号:US06011386A
公开日:
20000104
难过的词语专利内容由知识产权出版社提供
摘要:A frequency adjustable, zero temperature coefficient referencing ring oscillator circuit includes a plurality of inverter stages each having a switching circuit that produces the oscillating output signal for the ring oscillator circuit and a control circuit that controls the switching circuit to establish the frequency of the output signal, the control circuit including field-effect transistors which are operated as output resistance controllable devices and which have their operating points, and thus their output resistances, established by a reference voltage that is produced by a precision reference voltage generating circuit so that the operating frequency of the ring oscillator circuit can be t by adjusting the value of the reference signals produced by the precision reference signal generating circuit and is maintained at the tpoint value becau the precision reference voltage generating circuit operates independently of variations in temperature and/or the power supply voltage. The ring oscillator circuit is fabricated as an integrated circuit device and the operating frequency of the integrated circuit ring oscillator circuit can be adjusted after fabrication and passivation of the integrated circuit device.
美容医学申请人:MICRON TECHNOLOGY, INC.
干煸杏鲍菇
代理机构:Schwegman, Lundberg Lundberg & Kluth P 更多信息请下载全文后查看