公开(公告)号：DE3888100D1

公开(公告)日：1994-04-07

申请号：DE3888100

申请日：1988-11-08

Applicant: IBM

Inventor： CHUNG PAUL WINGSHING ,  SABER PAIK NMN

IPC: H03K3/011 ,  H03K3/282

Abstract: A voltage controlled oscillator (VCO) having high temperature stability and wide voltage/frequency linearity comprises a multivibrator switched by bipolar transistor switching means (Q9, Q10). Temperature fluctuations of the bipolar transistor switching means are compensated by a FET current source (T11, T12) coupled thereto. To provide a linear relationship of frequency vs. voltage over wide voltage range, the bipolar transistor switching means is further regulated by a plurality of resistor and diode networks (R4, Q1, Q2; R5, Q3, Q4).

公开(公告)号：DE3888100T2

公开(公告)日：1994-09-15

申请号：DE3888100

申请日：1988-11-08

Applicant: IBM

Inventor： CHUNG PAUL WINGSHING ,  SABER PAIK NMN

IPC: H03K3/011 ,  H03K3/282

Abstract: A voltage controlled oscillator (VCO) having high temperature stability and wide voltage/frequency linearity comprises a multivibrator switched by bipolar transistor switching means (Q9, Q10). Temperature fluctuations of the bipolar transistor switching means are compensated by a FET current source (T11, T12) coupled thereto. To provide a linear relationship of frequency vs. voltage over wide voltage range, the bipolar transistor switching means is further regulated by a plurality of resistor and diode networks (R4, Q1, Q2; R5, Q3, Q4).