GB998563A - Variable voltage supply apparatus - Google Patents

Variable voltage supply apparatus

Info

Publication number
GB998563A
GB998563A GB4654962A GB4654962A GB998563A GB 998563 A GB998563 A GB 998563A GB 4654962 A GB4654962 A GB 4654962A GB 4654962 A GB4654962 A GB 4654962A GB 998563 A GB998563 A GB 998563A
Authority
GB
United Kingdom
Prior art keywords
contacts
brush
voltage
winding
dec
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
GB4654962A
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.)
Applied Biosystems Inc
Original Assignee
Perkin Elmer 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 Perkin Elmer Corp filed Critical Perkin Elmer Corp
Publication of GB998563A publication Critical patent/GB998563A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/06—Variable transformers or inductances not covered by group H01F21/00 with current collector gliding or rolling on or along winding

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Adjustable Resistors (AREA)

Abstract

998,563. Regulating switches. PERKINELMER CORPORATION. Dec. 10, 1962 [Dec. 12, 1961], No. 46549/62. Heading H2B. [Also in Division H1] A variable voltage is obtained from a winding with tappings connected to substantially equally spaced contacts by moving along these contacts a brush having an appreciable resistance between its two ends and being long enough to touch at least two of the contacts at all times. The brush may have an insulating body portion with a conductive portion to slide over the contacts, there being a sliding contact and slip ring arrangement for feeding out the output voltage. The voltage drop which the brush introduces between the contacts 12, it connects, can be substantially or partly offset by applying across at least part of the brush a voltage obtained via slip rings 42, 44 from a secondary 46 on the main winding, the output voltage now being taken from the centre tap of this secondary. The winding may be arranged in a straight line (Fig. 4), with the brush long enough to touch four contacts in certain positions and at least three contacts in all positions of the slider 54. The device may be used as a fine adjustment in association with a coarse voltage stepping apparatus.
GB4654962A 1961-12-12 1962-12-10 Variable voltage supply apparatus Expired GB998563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15882361A 1961-12-12 1961-12-12

Publications (1)

Publication Number Publication Date
GB998563A true GB998563A (en) 1965-07-14

Family

ID=22569865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4654962A Expired GB998563A (en) 1961-12-12 1962-12-10 Variable voltage supply apparatus

Country Status (2)

Country Link
GB (1) GB998563A (en)
NL (1) NL284837A (en)

Also Published As

Publication number Publication date
NL284837A (en)

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