GB979964A - Transistor switching circuit - Google Patents

Transistor switching circuit

Info

Publication number
GB979964A
GB979964A GB1708962A GB1708962A GB979964A GB 979964 A GB979964 A GB 979964A GB 1708962 A GB1708962 A GB 1708962A GB 1708962 A GB1708962 A GB 1708962A GB 979964 A GB979964 A GB 979964A
Authority
GB
United Kingdom
Prior art keywords
transistor
base
circuit
collector
conducting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1708962A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB979964A publication Critical patent/GB979964A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electronic Switches (AREA)

Abstract

979,964. Transistor switching circuits. RADIO CORPORATION OF AMERICA. May 3, 1962 [May 19, 1961], No. 17089/62. Heading H3T. In a transistor switching circuit having an inductive load, e.g. magnetic memory elements Lc, in the collector circuit of a switching transistor T 1 , a further inductor Le is provided in the emitters circuit to prevent saturation of the transistor and collector current overshoot when the transistor is initially rendered conducting. As described, the steady current through the NPN transistor T 1 when conducting is determined by a potential Va which is normally prevented from being applied to the base by diode 24. When PNP transistor T 2 is rendered conducting by a negative pulse on its base diode 24 conducts, and the base of transistor T 1 is clamped to Va volts to render it conductive. In order to limit the current rise time the value of the inductor Le is at least as large relative to Lc as Va is to the applied collector potential Vcc.
GB1708962A 1961-05-19 1962-05-03 Transistor switching circuit Expired GB979964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11134561A 1961-05-19 1961-05-19

Publications (1)

Publication Number Publication Date
GB979964A true GB979964A (en) 1965-01-06

Family

ID=22337981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1708962A Expired GB979964A (en) 1961-05-19 1962-05-03 Transistor switching circuit

Country Status (1)

Country Link
GB (1) GB979964A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214956A1 (en) * 1973-01-22 1974-08-19 Yokowo Seisakusho Kk
EP0028131A1 (en) * 1979-10-25 1981-05-06 The Rank Organisation Limited Electro-mechanical elapsed time recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214956A1 (en) * 1973-01-22 1974-08-19 Yokowo Seisakusho Kk
EP0028131A1 (en) * 1979-10-25 1981-05-06 The Rank Organisation Limited Electro-mechanical elapsed time recorder

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