GB752055A - Improvements in or relating to electric supply circuits - Google Patents

Improvements in or relating to electric supply circuits

Info

Publication number
GB752055A
GB752055A GB28090/54A GB2809054A GB752055A GB 752055 A GB752055 A GB 752055A GB 28090/54 A GB28090/54 A GB 28090/54A GB 2809054 A GB2809054 A GB 2809054A GB 752055 A GB752055 A GB 752055A
Authority
GB
United Kingdom
Prior art keywords
transistor
relating
electric supply
supply circuits
voltage
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
GB28090/54A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB752055A publication Critical patent/GB752055A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
    • B44D3/162—Scrapers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/22—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output
    • H02M1/15—Arrangements for reducing ripples from dc input or output using active elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Dc-Dc Converters (AREA)
  • Control Of Electrical Variables (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

752,055. Automatic regulation. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 29, 1954 [Oct. 2, 1953], No. 28090/54. Class 38 (4). The D.C. voltage supplied to a load 2 from a variable source 1 via the collector/emitter path of,a p.n.p. junction transistor 3 is stabilized by applying a constant bias 4 to the base of the transistor. In a modification, Fig. 3 (not shown), the bias battery is replaced by a condenser charged from the input voltage. The polarities of the voltage sources, and the conductivity type of the transistor may be reversed. Specification. 752,031 is referred to.
GB28090/54A 1953-10-02 1954-09-29 Improvements in or relating to electric supply circuits Expired GB752055A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL752055X 1953-10-02
NLAANVRAGE8302037,A NL181786C (en) 1953-10-02 1983-06-08 METHOD FOR ATTACHING THE SCRAP BLADE OF A PAINT SCRAPER ON A STEEL PEN

Publications (1)

Publication Number Publication Date
GB752055A true GB752055A (en) 1956-07-04

Family

ID=26645171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28090/54A Expired GB752055A (en) 1953-10-02 1954-09-29 Improvements in or relating to electric supply circuits

Country Status (2)

Country Link
GB (1) GB752055A (en)
NL (1) NL181786C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995697A (en) * 1957-02-18 1961-08-08 Bell Telephone Labor Inc Transistor filter
GB2183942A (en) * 1985-12-02 1987-06-10 Gte Telecom Spa Power supply circuit for telephone apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995697A (en) * 1957-02-18 1961-08-08 Bell Telephone Labor Inc Transistor filter
GB2183942A (en) * 1985-12-02 1987-06-10 Gte Telecom Spa Power supply circuit for telephone apparatus

Also Published As

Publication number Publication date
NL8302037A (en) 1985-01-02
NL181786B (en) 1987-06-01
NL181786C (en) 1987-11-02

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