公开(公告)号：DE2933038A1

公开(公告)日：1980-05-08

申请号：DE2933038

申请日：1979-08-16

Applicant: IBM

Inventor： KONIAN RICHARD ROBERT ,  WALSH JAMES LEO

IPC: H03K17/60 ,  H03K17/66 ,  H03K19/086

Abstract: A high speed current switch logic circuit wherein a first and a second transistor are operated in a current switching mode and wherein a third and a fourth transistor are provided whereby the current switching operation of the first and second transistor causes current switching operation of the third and fourth transistors and push pull switching of power to a load.

公开(公告)号：DE1169997B

公开(公告)日：1964-05-14

申请号：DEJ0023568

申请日：1963-04-19

Applicant: IBM

Inventor： WALSH JAMES LEO

IPC: H03K19/086

公开(公告)号：CA1299240C

公开(公告)日：1992-04-21

申请号：CA580377

申请日：1988-10-17

Applicant: IBM

Inventor： MICHAIL MICHEL S ,  WALSH JAMES LEO

IPC: H03K19/00 ,  H03K19/082 ,  H03K19/086 ,  H03K17/16

Abstract: Half Current Switch With Feedback of the Invention A half current switch comprising: at least one input transistor, a load resistance connected between a first voltage reference and the collector of the input transistor, a constant-current resistance connected between the emitter of the input transistor and a second voltage reference, and a feedback means including at least one feedback connected to the constant-current resistance. The feedback means further includes means for biasing the feedback transistor to drive a current through the constant current resistance which, when flowing, increases with an increasing main current and decreases with a decreasing main current through the input transistor. The feedback means thus causes a constant current to be drawn by the input transistor when it is conducting, thereby controlling the capacitance of the input transistor while maintaining the output level constant.

公开(公告)号：DE3162991D1

公开(公告)日：1984-05-10

申请号：DE3162991

申请日：1981-10-29

Applicant: IBM

Inventor： ANANTHA NARASIPUR GUNDAPPA ,  BHATIA HARSARAN SINGH ,  LECHATON JOHN S ,  WALSH JAMES LEO

IPC: C01B33/12 ,  H01L21/302 ,  H01L21/3065 ,  H01L21/3105 ,  H01L21/311 ,  H01L21/312 ,  H01L21/76 ,  H01L21/31

公开(公告)号：DE3066688D1

公开(公告)日：1984-03-29

申请号：DE3066688

申请日：1980-07-10

Applicant: IBM

Inventor： CAVALIERE JOSEPH RICHARD ,  HENLE ROBERT ATHANASIUS ,  KONIAN RICHARD ROBERT ,  WALSH JAMES LEO

IPC: H03K19/082 ,  H03K19/086 ,  H03K19/013

Abstract: A high speed, unity gain, emitter follower OR circuit is disclosed including first and second pairs of emitter-connected complementary bipolar transistors with the bases of the NPN transistors being connected together and the bases of the PNP transistors being connected commonly to an input line. One of the NPN transistors id diode-connected (base to collector). The emitter of the other NPN transistor is connected to an output terminal. The input line is connected to the emitters of a pair of OR input NPN transistors and to a first current source. A second current source is coupled to the diode-connected NPN transistor.

公开(公告)号：DE3063500D1

公开(公告)日：1983-07-07

申请号：DE3063500

申请日：1980-08-12

Applicant: IBM

Inventor： KONIAN RICHARD ROBERT ,  WALSH JAMES LEO

IPC: H03K19/013 ,  H03K17/04 ,  H03K17/60 ,  H03K17/62 ,  H03K19/086 ,  H03K5/02 ,  H03K19/20

公开(公告)号：DE2861117D1

公开(公告)日：1981-12-10

申请号：DE2861117

申请日：1978-10-03

Applicant: IBM

Inventor： ANANTHA NARASIPUR GUNDAPPA ,  BHATIA HARSARAN SINGH ,  WALSH JAMES LEO

IPC: H01L21/76 ,  H01L21/331 ,  H01L21/74 ,  H01L21/8222 ,  H01L21/8228 ,  H01L27/06 ,  H01L27/07 ,  H01L27/082 ,  H01L29/06 ,  H01L29/417 ,  H01L29/73 ,  H01L29/732 ,  H01L27/08 ,  H01L21/70

公开(公告)号：DE1208764B

公开(公告)日：1966-01-13

申请号：DEJ0025947

申请日：1964-06-01

Applicant: IBM

Inventor： WALSH JAMES LEO

IPC: H03K3/012

公开(公告)号：DE1157262B

公开(公告)日：1963-11-14

申请号：DEJ0017983

申请日：1960-04-16

Applicant: IBM

Inventor： WALSH JAMES LEO

IPC: H03K19/013 ,  H03K19/084

公开(公告)号：DE1044166B

公开(公告)日：1958-11-20

申请号：DEI0013232

申请日：1957-05-18

Applicant: IBM DEUTSCHLAND

Inventor： LOGUE JOSEPH CARL ,  WALSH JAMES LEO

IPC: H03K3/012 ,  H03K3/286 ,  H03K3/288