公开(公告)号：EP0610064A3

公开(公告)日：1994-11-23

申请号：EP94300737.7

申请日：1994-02-01

Applicant: SGS-Thomson Microelectronics Limited

Inventor： Hall, Andrew Medlicott ,  Monk, Trevor Kenneth

IPC: H03K17/16 ,  G05F3/24

CPC classification number: H03K17/163 ,  G05F3/242

Abstract: A switching circuit for an FET transistor includes a controlled current circuit coupled to the gate of the FET. The input (36) to the controlled current circuit represents a desired rate of change of gate voltage of the FET and is generated by a circuit responsive to the average specific transconductance of two FETs (41,42) of similar specific transconductance operating at different drain current densities. Circuitry (51,52) is responsive to different gate voltages of the transistors (41,42) at the respective drain current densities to operate the signal (36).

Abstract translation: 用于FET晶体管的开关电路包括耦合到FET的栅极的受控电流电路。 受控电流电路的输入（36）表示FET的栅极电压的期望变化率，并且由响应于在不同漏极工作的类似特定跨导的两个FET（41,42）的平均特定跨导产生的电路产生 电流密度。 电路（51,52）以相应的漏极电流密度响应于晶体管（41,42）的不同栅极电压以操作信号（36）。

公开(公告)号：EP0523854B1

公开(公告)日：1995-05-31

申请号：EP92305478.7

申请日：1992-06-15

Applicant: SGS-Thomson Microelectronics Limited

Inventor： Cytera, Christopher ,  Hall, Andrew Medlicott

IPC: H03L7/099 ,  H03B5/24

CPC classification number: H03L7/0995 ,  H03B5/24 ,  H03B27/00 ,  H03B2200/0038 ,  H03B2200/0058 ,  H03B2200/0062 ,  H03B2200/0078 ,  H03B2201/02 ,  H03L1/00

公开(公告)号：EP0610064A2

公开(公告)日：1994-08-10

申请号：EP94300737.7

申请日：1994-02-01

Applicant: SGS-Thomson Microelectronics Limited

Inventor： Hall, Andrew Medlicott ,  Monk, Trevor Kenneth

IPC: H03K17/16 ,  G05F3/24

CPC classification number: H03K17/163 ,  G05F3/242

Abstract: A switching circuit for an FET transistor includes a controlled current circuit coupled to the gate of the FET. The input (36) to the controlled current circuit represents a desired rate of change of gate voltage of the FET and is generated by a circuit responsive to the average specific transconductance of two FETs (41,42) of similar specific transconductance operating at different drain current densities. Circuitry (51,52) is responsive to different gate voltages of the transistors (41,42) at the respective drain current densities to operate the signal (36).

Abstract translation: 用于FET晶体管的开关电路包括耦合到FET的栅极的受控电流电路。 受控电流电路的输入（36）表示FET的栅极电压的期望变化率，并且由响应于在不同漏极操作的具有类似特定跨导的两个FET（41,42）的平均特定跨导的电路 电流密度。 电路（51,52）响应于各个漏极电流密度处的晶体管（41,42）的不同栅极电压来操作信号（36）。

公开(公告)号：EP0523854A3

公开(公告)日：1993-07-28

申请号：EP92305478.7

申请日：1992-06-15

Applicant: SGS-Thomson Microelectronics Limited

Inventor： Cytera, Christopher ,  Hall, Andrew Medlicott

IPC: H03L7/099 ,  H03B5/24

CPC classification number: H03L7/0995 ,  H03B5/24 ,  H03B27/00 ,  H03B2200/0038 ,  H03B2200/0058 ,  H03B2200/0062 ,  H03B2200/0078 ,  H03B2201/02 ,  H03L1/00

Abstract: The oscillator comprises a plurality of differential amplication stages (10,12,14,16) each arranged to introduce a phase shift between its differential input signal and its differential output signal such that the total phase shift introduced by the stages is 360 o . In this way an oscillating signal is produced at the output of each stage. Because each stage receives and supplies difference signals, any changes in the power supply of the stages affect both inputs or outputs in the same way so that the effect on the differential signal is minimal. The circuit thus provides a reduction of the effect of power supply noise. The oscillator may be used for instance in a N-PLL-circuit.

公开(公告)号：EP0523854A2

公开(公告)日：1993-01-20

申请号：EP92305478.7

申请日：1992-06-15

Applicant: SGS-Thomson Microelectronics Limited

Inventor： Cytera, Christopher ,  Hall, Andrew Medlicott

IPC: H03L7/099 ,  H03B5/24

CPC classification number: H03L7/0995 ,  H03B5/24 ,  H03B27/00 ,  H03B2200/0038 ,  H03B2200/0058 ,  H03B2200/0062 ,  H03B2200/0078 ,  H03B2201/02 ,  H03L1/00

Abstract: The oscillator comprises a plurality of differential amplication stages (10,12,14,16) each arranged to introduce a phase shift between its differential input signal and its differential output signal such that the total phase shift introduced by the stages is 360 o . In this way an oscillating signal is produced at the output of each stage. Because each stage receives and supplies difference signals, any changes in the power supply of the stages affect both inputs or outputs in the same way so that the effect on the differential signal is minimal. The circuit thus provides a reduction of the effect of power supply noise. The oscillator may be used for instance in a N-PLL-circuit.

Abstract translation: 压控振荡器包括多个差分放大级（10,12,14,16），每个差分放大级被布置成在其差分输入信号与其差分输出信号之间引入相移，使得由级引入的总相位为360°， O>。 以这种方式，在每个级的输出处产生振荡信号。