GB806223A - Diode clipping circuit - Google Patents

Diode clipping circuit

Info

Publication number
GB806223A
GB806223A GB31755/55A GB3175555A GB806223A GB 806223 A GB806223 A GB 806223A GB 31755/55 A GB31755/55 A GB 31755/55A GB 3175555 A GB3175555 A GB 3175555A GB 806223 A GB806223 A GB 806223A
Authority
GB
United Kingdom
Prior art keywords
diode
input signal
conducts
amplifier
output
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
GB31755/55A
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 GB806223A publication Critical patent/GB806223A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/002—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general without controlling loop

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

806,223. Limiting circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 7,1955 [Nov. 10, 1954], No. 31755/55. Class 40 (6). In a circuit, Fig. 1, in which the output of an amplifier 21 is in phase with an input signal from source 1, a diode 29 is connected between a point 27 having a potential variation equal to or less than that of the input signal and the input to the amplifier. By employing a further diode 23 the output from the amplifier continues to fall with an increasingly negative input signal until diode 23 conducts whereupon diode 29 also conducts. If the amplifier has a gain of unity then the potential divider comprising resistors 25, 26 may be omitted. In a practical embodiment, Fig. 3 (not shown), a cathode follower is used and by the use of a further pair of diodes, Fig. 5 (not shown), the input signal may also be limited in a positive direction. A circuit for limiting the input in both positive and negative directions, Fig. 6, comprises a cathode follower 3 with a potential divider of resistors 66, 67 and 16. The point 17 is given such a potential that with an input signal of minus 34 volts diode 8 conducts, the output then being such that diode 14 also conducts to limit any further negative excursion. In a similar manner when a positive going signal of ten volts exists at the input, diodes 9, 15 conduct to prevent the output from rising further. The circuit may be employed to clip a large amplitude wave, Fig. 4 (not shown).
GB31755/55A 1954-11-10 1955-11-07 Diode clipping circuit Expired GB806223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US806223XA 1954-11-10 1954-11-10

Publications (1)

Publication Number Publication Date
GB806223A true GB806223A (en) 1958-12-23

Family

ID=22158539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31755/55A Expired GB806223A (en) 1954-11-10 1955-11-07 Diode clipping circuit

Country Status (1)

Country Link
GB (1) GB806223A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205701A (en) * 1987-05-28 1988-12-14 Emco Display Technology Ltd Diode clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205701A (en) * 1987-05-28 1988-12-14 Emco Display Technology Ltd Diode clamp

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