GB823830A - Improvements in or relating to electric signalling and computing systems - Google Patents

Improvements in or relating to electric signalling and computing systems

Info

Publication number
GB823830A
GB823830A GB3884157A GB3884157A GB823830A GB 823830 A GB823830 A GB 823830A GB 3884157 A GB3884157 A GB 3884157A GB 3884157 A GB3884157 A GB 3884157A GB 823830 A GB823830 A GB 823830A
Authority
GB
United Kingdom
Prior art keywords
capacitance
relay
total
output
current
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
GB3884157A
Inventor
John Warren Dillow
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3884157A priority Critical patent/GB823830A/en
Publication of GB823830A publication Critical patent/GB823830A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

823,830. Electric analog calculating; energy metering. STANDARD TELEPHONES & CABLES Ltd. Dec. 13, 1957, No. 38841/57. Class 37. An electric analog device for deriving from two variable electric functions a variable relay impulse rate proportional to the quotient thereof, comprises a first capacitance chargeable by a current in proportion to a first function, a second capacitance chargeable by a voltage proportional to a second function, and relay means operative when such first capacitance has received a predetermined charge to generate an output pulse and to connect the second capacitance to the first capacitance whereby the charge on the latter is reduced by sharing, after which the relay releases to disconnect the second capacitance from the first and reconnect them for freedom to recharge. In a power generation metering network, direct voltages proportional to the total generated outputs of plural respective stations are produced by telemeters 1, 2, 3 and are connected over respective resistances Rc 1 , Rc 2 , Rc 3 , inversely proportional to the respective generation costs per unit at the stations, to pass a total current #i c = ic 1 + ic 2 + ic 3 representing the total generating cost into a capacitance C 1 shunting amplifier A 1 , whose output is earthed over relay R/3. The telemeter voltages are also connected over respective resistances RL 1 , RL 2 , RL 3 which pass load currents iL 1 , iL 2 , iL 3 such that the total current #i 1 = iL 1 + iL 2 + iL 3 represents the total load, and is applied to resistive feedback amplifier A 2 to produce an output voltage V L , which charges capacitance C 2 over contacts R in normal position while current #ic charges capacitance C 1 to a predetermined level, after which relay R/3 operates to generate an output pulse and changeover contact R to correct capacitances C 1 , C 2 together so that the former is discharged to an extent dependent on the charge on the latter. The relay releases and the cycle is repeated; the output frequency being given by:- and representing the average cost of power per unit. The total output of the plural generators may be telemetrically displayed. Specification 629,254 is referred to.
GB3884157A 1957-12-13 1957-12-13 Improvements in or relating to electric signalling and computing systems Expired GB823830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3884157A GB823830A (en) 1957-12-13 1957-12-13 Improvements in or relating to electric signalling and computing systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3884157A GB823830A (en) 1957-12-13 1957-12-13 Improvements in or relating to electric signalling and computing systems

Publications (1)

Publication Number Publication Date
GB823830A true GB823830A (en) 1959-11-18

Family

ID=10406018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3884157A Expired GB823830A (en) 1957-12-13 1957-12-13 Improvements in or relating to electric signalling and computing systems

Country Status (1)

Country Link
GB (1) GB823830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7028372B2 (en) * 2002-06-18 2006-04-18 Lg Electronics, Inc. Door hinge mounting device for microwave oven

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7028372B2 (en) * 2002-06-18 2006-04-18 Lg Electronics, Inc. Door hinge mounting device for microwave oven

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