公开(公告)号：JPH10107584A

公开(公告)日：1998-04-24

申请号：JP25013997

申请日：1997-09-01

Applicant: MOTOROLA INC

Inventor： MAIN WILLIAM E

IPC: H03H11/04 ,  H03F1/08

Abstract: PROBLEM TO BE SOLVED: To provide an integrated circuit to provide an output signal whose frequency is compensated and its method. SOLUTION: The integrated circuit 10 includes an input stage 11 coupled with a trans-conductance amplifier 14 via a capacitor 13 and a compensation diode 12. The compensation diode 12 provides an impedance invalidating an output impedance of the trans-conductance amplifier 14. An output signal of the integrated circuit 10 depends on a capacitance of the capacitor 13.

公开(公告)号：DE3176101D1

公开(公告)日：1987-05-14

申请号：DE3176101

申请日：1981-10-28

Applicant: MOTOROLA INC

Inventor： LUNN GERALD K ,  MCGINN MICHAEL ,  MAIN WILLIAM E

IPC: H02M7/21 ,  G01R19/22 ,  H02M7/217

Abstract: A circuit and method for producing a signal that is nearly a perfect full wave rectified version of an applied alternating signal. The circuit comprises first and second identical non-linear symmetrical rectifiers each having a respective output coupled to a current mirror circuit. In response to the alternating signal being applied to the input of the first rectifier a full wave rectified signal is produced at the output thereof to drive the current mirror such that at the output thereof, which is coupled to the output of the second rectifier, there appears a signal identical to the output from the first rectifier. This signal is utilized to produce an input signal to the second rectifier to constrain the output signal therefrom to be identical to the output signal from the current mirror circuit. The input signal to the second rectifier is thus a perfect full wave rectified version of the input signal applied to the first rectifier.

公开(公告)号：HK97589A

公开(公告)日：1989-12-15

申请号：HK97589

申请日：1989-12-07

Applicant: MOTOROLA INC

Inventor： LUNN GERALD K ,  MCGINN MICHAEL ,  MAIN WILLIAM E

IPC: H02M7/217