GB939174A - Improvements relating to rectifier feed circuits - Google Patents

Improvements relating to rectifier feed circuits

Info

Publication number
GB939174A
GB939174A GB1562861A GB1562861A GB939174A GB 939174 A GB939174 A GB 939174A GB 1562861 A GB1562861 A GB 1562861A GB 1562861 A GB1562861 A GB 1562861A GB 939174 A GB939174 A GB 939174A
Authority
GB
United Kingdom
Prior art keywords
resistor
points
choke
improvements relating
circuit
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
GB1562861A
Inventor
Harry Duckitt
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB1562861A priority Critical patent/GB939174A/en
Publication of GB939174A publication Critical patent/GB939174A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/186—Use of rectified alternating current

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Rectifiers (AREA)

Abstract

939,174. Converting. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. April 13, 1962 [May 1, 1961], No. 15628/61. Class 38 (2). [Also in Group XXX] A rectifier feed circuit for supplying direct current to a load to which an alternating current is also supplied comprises a supply transformer T, a bi-phase rectifying circuit formed by Zener diodes D1, D2 and an output circuit, including choke L, which connects the D.C. voltage developed across resistor R to a load connected across points 2 and 3. The A.C. voltage supplied to points 2, 3 from a source (not shown) also acts in the rectifying circuit and tends to increase its D.C. output. This effect is reduced by the filtering action of choke L and resistor R and also, during each half cycle, by the reverse current action, of one Zener diode when the combined A.C. voltages applied to the other exceed a predetermined level.
GB1562861A 1961-05-01 1961-05-01 Improvements relating to rectifier feed circuits Expired GB939174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1562861A GB939174A (en) 1961-05-01 1961-05-01 Improvements relating to rectifier feed circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1562861A GB939174A (en) 1961-05-01 1961-05-01 Improvements relating to rectifier feed circuits

Publications (1)

Publication Number Publication Date
GB939174A true GB939174A (en) 1963-10-09

Family

ID=10062578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1562861A Expired GB939174A (en) 1961-05-01 1961-05-01 Improvements relating to rectifier feed circuits

Country Status (1)

Country Link
GB (1) GB939174A (en)

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