GB907152A - A circuit for generating a linear ramp voltage - Google Patents

A circuit for generating a linear ramp voltage

Info

Publication number
GB907152A
GB907152A GB4356459A GB4356459A GB907152A GB 907152 A GB907152 A GB 907152A GB 4356459 A GB4356459 A GB 4356459A GB 4356459 A GB4356459 A GB 4356459A GB 907152 A GB907152 A GB 907152A
Authority
GB
United Kingdom
Prior art keywords
capacitor
circuit
resistor
charging
diode
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
GB4356459A
Inventor
Jack Caylor Smeltzer
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Ramo Wooldridge Inc
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
Priority to NL246899D priority Critical patent/NL246899A/xx
Priority to US736917A priority patent/US2998532A/en
Application filed by Thompson Ramo Wooldridge Inc filed Critical Thompson Ramo Wooldridge Inc
Priority to GB4356459A priority patent/GB907152A/en
Priority to FR814669A priority patent/FR1253389A/en
Priority to DET17723A priority patent/DE1144331B/en
Publication of GB907152A publication Critical patent/GB907152A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
    • H03K4/24—Boot-strap generators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
    • H03K4/58—Boot-strap generators

Landscapes

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

Abstract

907,152. Transistor sawtooth circuits. THOMPSON RAMO WOOLDRIDGE Inc. Dec. 22, 1959, No. 43564/59. Class 40 (6). A ramp waveform generator comprises a capacitor having charging and discharging circuits respectively connected to and across the capacitor, the waveform being linearized by means of a " bootstrap " circuit coupled to the charging circuit by means of a Zener diode. As shown, capacitor 18 is rapidly discharged by transitor 10 when pulses 30 are applied to the base. At the end of each pulse 30, capacitor 18 charges via resistor 20, the rising voltage being passed via an emitter follower 64 and a Zener diode 78 to the charging resistor 20 to linearize the waveform. In the absence of pulses 30, rise is terminated when the base potential of transistor 64 reaches that of the collector. Fig. 2 (not shown), relates to a known circuit in which resistor 62 is replaced by a diode and diode 78 is replaced by a capacitor.
GB4356459A 1958-05-21 1959-12-22 A circuit for generating a linear ramp voltage Expired GB907152A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL246899D NL246899A (en) 1959-12-22
US736917A US2998532A (en) 1958-05-21 1958-05-21 Linear ramp voltage wave shape generator
GB4356459A GB907152A (en) 1959-12-22 1959-12-22 A circuit for generating a linear ramp voltage
FR814669A FR1253389A (en) 1959-12-22 1959-12-31 Constant current charging circuit
DET17723A DE1144331B (en) 1959-12-22 1960-01-14 Bootstrap circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4356459A GB907152A (en) 1959-12-22 1959-12-22 A circuit for generating a linear ramp voltage

Publications (1)

Publication Number Publication Date
GB907152A true GB907152A (en) 1962-10-03

Family

ID=10429313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4356459A Expired GB907152A (en) 1958-05-21 1959-12-22 A circuit for generating a linear ramp voltage

Country Status (2)

Country Link
GB (1) GB907152A (en)
NL (1) NL246899A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100459431C (en) * 2003-07-08 2009-02-04 艾斯泰克国际公司 Circuit for optimizing Zener diode bias current

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100459431C (en) * 2003-07-08 2009-02-04 艾斯泰克国际公司 Circuit for optimizing Zener diode bias current

Also Published As

Publication number Publication date
NL246899A (en)

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