GB1064931A - - Google Patents

Info

Publication number
GB1064931A
GB1064931A GB13905/64A GB1390564A GB1064931A GB 1064931 A GB1064931 A GB 1064931A GB 13905/64 A GB13905/64 A GB 13905/64A GB 1390564 A GB1390564 A GB 1390564A GB 1064931 A GB1064931 A GB 1064931A
Authority
GB
United Kingdom
Prior art keywords
transistors
circuits
april
transistor
effect
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
GB13905/64A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1064931A publication Critical patent/GB1064931A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • H03K3/2823—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable using two active transistor of the same conductivity type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

1,064,931. Transistor oscillator circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 3, 1964 [April 3, 1963], No. 13905/64. Heading H3T. In a multivibrator comprising transistors T1, T2, the effect of temperature on frequency is reduced by the use of auxiliary transistors T<SP>1</SP> 1 , T<SP>1</SP> 2 in the collector circuits. The conductivity of T<SP>1</SP> 1 , T<SP>1</SP> 2 is controlled by the main transistors T1, T2 so that T<SP>1</SP> 1 , T<SP>1</SP> 2 become conductive only when its respective main transistor T1, T2 is blocked. Capacitors C 1 , C 2 recharge via the auxiliary transistors T<SP>1</SP> 1 , T<SP>1</SP> 2 thus permitting low resistance base circuits to be used with consequent reduction in the thermal effect on base leakage current.
GB13905/64A 1963-04-03 1964-04-03 Expired GB1064931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1241484X 1963-04-03

Publications (1)

Publication Number Publication Date
GB1064931A true GB1064931A (en) 1967-04-12

Family

ID=9677834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13905/64A Expired GB1064931A (en) 1963-04-03 1964-04-03

Country Status (2)

Country Link
DE (1) DE1241484B (en)
GB (1) GB1064931A (en)

Also Published As

Publication number Publication date
DE1241484B (en) 1967-06-01

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