Improvements in and relating to Switching Circuits

    公开(公告)号:GB1176876A

    公开(公告)日:1970-01-07

    申请号:GB1445967

    申请日:1967-03-30

    Applicant: IBM

    Abstract: 1,176,876. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 30 March, 1967 [24 May, 1966], No. 14459/67. Heading H3T. A switching circuit comprises a first transistor 12 with its emitter coupled to the collector of a second transistor 14, an impedance 32 for establishing a potential at the base of the transistor 14, and control means 34 coupled between the base and collector of transistor 14 to reduce the forward bias on the base-collector junction of transistor 14 when transistor 12 is cut off. Application of a negative potential -e 2 to the base of transistor 12 cuts it off, and switches on transistor 34 to hold the point 36 more positive than -e 2 .

    2.
    发明专利
    未知

    公开(公告)号:SE318310B

    公开(公告)日:1969-12-08

    申请号:SE717967

    申请日:1967-05-23

    Applicant: IBM

    Abstract: 1,176,876. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 30 March, 1967 [24 May, 1966], No. 14459/67. Heading H3T. A switching circuit comprises a first transistor 12 with its emitter coupled to the collector of a second transistor 14, an impedance 32 for establishing a potential at the base of the transistor 14, and control means 34 coupled between the base and collector of transistor 14 to reduce the forward bias on the base-collector junction of transistor 14 when transistor 12 is cut off. Application of a negative potential -e 2 to the base of transistor 12 cuts it off, and switches on transistor 34 to hold the point 36 more positive than -e 2 .

    3.
    发明专利
    未知

    公开(公告)号:FR1518364A

    公开(公告)日:1968-03-22

    申请号:FR06008447

    申请日:1967-04-04

    Applicant: IBM

    Abstract: 1,176,876. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 30 March, 1967 [24 May, 1966], No. 14459/67. Heading H3T. A switching circuit comprises a first transistor 12 with its emitter coupled to the collector of a second transistor 14, an impedance 32 for establishing a potential at the base of the transistor 14, and control means 34 coupled between the base and collector of transistor 14 to reduce the forward bias on the base-collector junction of transistor 14 when transistor 12 is cut off. Application of a negative potential -e 2 to the base of transistor 12 cuts it off, and switches on transistor 34 to hold the point 36 more positive than -e 2 .

    4.
    发明专利
    未知

    公开(公告)号:NL6706926A

    公开(公告)日:1967-11-27

    申请号:NL6706926

    申请日:1967-05-19

    Applicant: IBM

    Abstract: 1,176,876. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 30 March, 1967 [24 May, 1966], No. 14459/67. Heading H3T. A switching circuit comprises a first transistor 12 with its emitter coupled to the collector of a second transistor 14, an impedance 32 for establishing a potential at the base of the transistor 14, and control means 34 coupled between the base and collector of transistor 14 to reduce the forward bias on the base-collector junction of transistor 14 when transistor 12 is cut off. Application of a negative potential -e 2 to the base of transistor 12 cuts it off, and switches on transistor 34 to hold the point 36 more positive than -e 2 .

    6.
    发明专利
    未知

    公开(公告)号:BE695778A

    公开(公告)日:1967-09-01

    申请号:BE695778D

    申请日:1967-03-20

    Applicant: IBM

    Abstract: 1,176,876. Transistor switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 30 March, 1967 [24 May, 1966], No. 14459/67. Heading H3T. A switching circuit comprises a first transistor 12 with its emitter coupled to the collector of a second transistor 14, an impedance 32 for establishing a potential at the base of the transistor 14, and control means 34 coupled between the base and collector of transistor 14 to reduce the forward bias on the base-collector junction of transistor 14 when transistor 12 is cut off. Application of a negative potential -e 2 to the base of transistor 12 cuts it off, and switches on transistor 34 to hold the point 36 more positive than -e 2 .

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