公开(公告)号：US3612984A

公开(公告)日：1971-10-12

申请号：US3612984D

申请日：1970-05-08

Applicant: MOTOROLA INC

Inventor： DAVIS WILLIAM F ,  FREDERIKSEN THOMAS M

IPC: G05F1/56 ,  G05F1/58

CPC classification number: G05F1/56 ,  Y10S323/907

Abstract: A temperature-compensated, ripple-reducing negative voltage regulator which is adapted to be constructed as an integrated circuit in that no inductors and a minimum number of capacitors are used and any PNP transistors that are used need not have good current amplification factors. The regulator includes protection against excessive current and momentary excessive voltages.

公开(公告)号：US3665329A

公开(公告)日：1972-05-23

申请号：US3665329D

申请日：1969-12-23

Applicant: MOTOROLA INC

Inventor： DAVIS WILLIAM F ,  FREDERIKSEN THOMAS M

IPC: H03F3/187 ,  H03F3/42 ,  H03F3/04

CPC classification number: H03F3/187

Abstract: An amplifier is provided to be used as a driver for a class A power transistor amplifier particularly adapted to be operated in the audio frequency range. The performance of the complete audio system is characterized by high openloop gain and minimized phase shift around the closed feedback loop. This allows excellent frequency performance with low distortion over the entire audio range at power levels greater than one watt. The driver portion of the amplifier allows the overall performance of the audio system to be independent of B variations of the power transistor and B variations of the transistors used in the driver itself. The driver portion can easily be fabricated as an integrated circuit if desired.

公开(公告)号：HK82095A

公开(公告)日：1995-06-01

申请号：HK82095

申请日：1995-05-25

Applicant: MOTOROLA INC

Inventor： SUSAK DAVID M ,  DAVIS WILLIAM F ,  VYNE ROBERT L

IPC: H01L21/822 ,  H01L27/04 ,  H01L23/64 ,  H01L27/08 ,  H03F3/34 ,  H03F3/343 ,  H03F3/347 ,  H03F3/45

Abstract: An operational amplifier of the type which includes first and second differentially coupled input transistors which cooperate with a current mirror circuit also includes a first and second RTMM resistors which may be individually trimmed to reduce input offset voltage. Each RTMM resistor is coupled from the power supply rail through first and second diodes respectively to the first and second input terminals. In this manner, signals appearing on the input terminals which exceed the rail voltage will cause currents to flow through the RTMM resistors thus reducing their resistance, and reducing offset voltage.

公开(公告)号：WO1982003303A1

公开(公告)日：1982-09-30

申请号：PCT/US1982000152

申请日：1982-02-05

Applicant: MOTOROLA INC

Inventor： MOTOROLA INC ,  DAVIS WILLIAM F

IPC: H03F03/26

CPC classification number: H03F1/32 ,  H03F3/3084

Abstract: An NPN output stage for an integrated circuit amplifier includes a first NPN transistor (10) which sinks a first current from the output of said circuit when the first transistor is turned on by a varying input signal. A second transistor (4) is coupled to the output of the circuit and supplies a second current to the output when the first transistor turns off. A resistor (8) is coupled between the collector of the first transistor (10) and the emitter of the second transistor (4) to provide a voltage drop thereacross proportional to the amount of current being sunk by the first transistor so as to control the voltage at the base of the second transistor. In this way, the second transistor is turned on and off as the first transistor is turned off and on respectively. Diode means (6) provide a voltage level shift between the resistor (8) and the base of the second transistor (4).

Abstract translation: 用于集成电路放大器的NPN输出级包括第一NPN晶体管（10），当第一晶体管被变化的输入信号导通时，第一NPN晶体管（10）从第一电流的输出吸收第一电流。 当第一晶体管截止时，第二晶体管（4）耦合到电路的输出端并将第二电流提供给输出端。 电阻器（8）耦合在第一晶体管（10）的集电极和第二晶体管（4）的发射极之间，以提供与第一晶体管正在吸收的电流量成比例的电压降，以便控制 电压在第二晶体管的基极。 以这种方式，当第一晶体管截止并分别导通时，第二晶体管导通和截止。 二极管装置（6）在电阻器（8）和第二晶体管（4）的基极之间提供电压电平移位。

公开(公告)号：SG139894G

公开(公告)日：1995-01-13

申请号：SG139894

申请日：1994-09-30

Applicant: MOTOROLA INC

Inventor： SUSAK DAVID M ,  DAVIS WILLIAM F ,  VYNE ROBERT L

IPC: H03F3/45

公开(公告)号：EP0283479A4

公开(公告)日：1989-01-18

申请号：EP87904464

申请日：1987-06-29

Applicant: MOTOROLA INC

Inventor： SUSAK DAVID M ,  DAVIS WILLIAM F ,  VYNE ROBERT L

IPC: H01L27/04 ,  H01L21/822 ,  H01L23/64 ,  H01L27/08 ,  H03F3/34 ,  H03F3/343 ,  H03F3/347 ,  H03F3/45

CPC classification number: H01L27/0802 ,  H01L23/647 ,  H01L2924/0002 ,  H03F3/45479 ,  H01L2924/00

公开(公告)号：EP0091916A4

公开(公告)日：1984-03-01

申请号：EP82903019

申请日：1982-09-17

Applicant: MOTOROLA INC

Inventor： DAVIS WILLIAM F ,  SHACTER STUART B

IPC: H03F3/343 ,  H03F1/08 ,  H03F3/14

CPC classification number: H03F1/083