GB1378792A - Current source for supplying a current having an exponential wave form - Google Patents

Current source for supplying a current having an exponential wave form

Info

Publication number
GB1378792A
GB1378792A GB51272A GB51272A GB1378792A GB 1378792 A GB1378792 A GB 1378792A GB 51272 A GB51272 A GB 51272A GB 51272 A GB51272 A GB 51272A GB 1378792 A GB1378792 A GB 1378792A
Authority
GB
United Kingdom
Prior art keywords
current
capacitor
output
reactor
exponential wave
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
GB51272A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1378792A publication Critical patent/GB1378792A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
GB51272A 1971-01-08 1972-01-05 Current source for supplying a current having an exponential wave form Expired GB1378792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7100277A NL7100277A (enExample) 1971-01-08 1971-01-08

Publications (1)

Publication Number Publication Date
GB1378792A true GB1378792A (en) 1974-12-27

Family

ID=19812223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51272A Expired GB1378792A (en) 1971-01-08 1972-01-05 Current source for supplying a current having an exponential wave form

Country Status (7)

Country Link
US (1) US3753131A (enExample)
CA (1) CA958812A (enExample)
DE (1) DE2165180A1 (enExample)
FR (1) FR2121302A5 (enExample)
GB (1) GB1378792A (enExample)
IT (1) IT951075B (enExample)
NL (1) NL7100277A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8306764D0 (en) * 1983-03-11 1983-04-20 Johnson Matthey Plc Calibration warning apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE910427C (de) * 1941-03-12 1954-05-03 Siemens Ag Verstaerker mit zweifacher Rueckkopplung
US3113274A (en) * 1960-06-22 1963-12-03 Westinghouse Air Brake Co Analog squaring device
US3237002A (en) * 1962-06-28 1966-02-22 Electronic Associates Backlash simulator
US3436673A (en) * 1965-11-22 1969-04-01 Monsanto Co Converter circuit
US3477034A (en) * 1966-12-14 1969-11-04 Monsanto Co Zero suppression circuit for differential amplifiers
US3521082A (en) * 1967-08-15 1970-07-21 Honeywell Inc Linear/log time ramp generator
US3696304A (en) * 1970-06-29 1972-10-03 Monsanto Co Proportional only process controller

Also Published As

Publication number Publication date
IT951075B (it) 1973-06-30
FR2121302A5 (enExample) 1972-08-18
NL7100277A (enExample) 1972-07-11
US3753131A (en) 1973-08-14
DE2165180A1 (de) 1972-07-27
CA958812A (en) 1974-12-03

Similar Documents

Publication Publication Date Title
US3214708A (en) Frequency-type telemeter transmitter
GB1410380A (en) Tone control circuit
US3449695A (en) Voltage to frequency converter including a feedback control circuit
GB1378792A (en) Current source for supplying a current having an exponential wave form
GB982119A (en) Improvements in or relating to electrical apparatus
US2950053A (en) Electrical integrator
GB917580A (en) Phase comparison circuit
GB1093538A (en) Improvements in or relating to switched frequency oscillators
MY100773A (en) Frequency to current converter circuit.
SU614392A1 (ru) Измерительный усилитель посто нного тока
US2913668A (en) Ratio voltmeter
SU549749A1 (ru) Пиковый детекртор
SU374725A1 (ru) Устройство для формирования прямоугольных импульсов из синусоидального напряжения
SU832701A1 (ru) Преобразователь переменногоНАпР жЕНи B пОСТО ННОЕ
SU525109A1 (ru) Решающий усилитель
JPS5845850B2 (ja) クケイハノハコウチセイゲンカイロ
GB756444A (en) Improvements relating to electric circuits for producing rectangular waveforms
SU739557A1 (ru) Устройство дл возведени в степень
SU480025A1 (ru) Преобразователь отношени двух напр жений во временной интервал
SU590830A1 (ru) Аналоговое запоминающее устройство
SU869013A1 (ru) Генератор импульсов
JPS5657960A (en) Frequency-current converting circuit
SU684727A1 (ru) Управл емый генератор пилообразного напр жени
SU371685A1 (ru) Ключ переменного тока
SU949626A1 (ru) Пороговое устройство

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees