GB1512999A - Voltage generating system - Google Patents

Voltage generating system

Info

Publication number
GB1512999A
GB1512999A GB28291/75A GB2829175A GB1512999A GB 1512999 A GB1512999 A GB 1512999A GB 28291/75 A GB28291/75 A GB 28291/75A GB 2829175 A GB2829175 A GB 2829175A GB 1512999 A GB1512999 A GB 1512999A
Authority
GB
United Kingdom
Prior art keywords
digit
flip
flops
tens
voltage levels
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
GB28291/75A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP49077550A external-priority patent/JPS517461A/ja
Priority claimed from JP49132144A external-priority patent/JPS5157229A/ja
Priority claimed from JP49132145A external-priority patent/JPS5157280A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1512999A publication Critical patent/GB1512999A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/129—Means for adapting the input signal to the range the converter can handle, e.g. limiting, pre-scaling ; Out-of-range indication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Electronic Switches (AREA)
GB28291/75A 1974-07-05 1975-07-04 Voltage generating system Expired GB1512999A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP49077550A JPS517461A (en) 1974-07-05 1974-07-05 Denatsuhatsuseisochi
JP49132144A JPS5157229A (en) 1974-11-15 1974-11-15 Denatsuhatsuseisochi
JP49132145A JPS5157280A (en) 1974-11-15 1974-11-15 Dda henkanki

Publications (1)

Publication Number Publication Date
GB1512999A true GB1512999A (en) 1978-06-01

Family

ID=27302451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28291/75A Expired GB1512999A (en) 1974-07-05 1975-07-04 Voltage generating system

Country Status (6)

Country Link
US (1) US4015192A (https=)
CA (1) CA1052920A (https=)
DE (1) DE2530033C2 (https=)
FR (1) FR2280252A1 (https=)
GB (1) GB1512999A (https=)
NL (1) NL165896C (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH625446A5 (https=) * 1977-03-18 1981-09-30 Agie Ag Ind Elektronik
US4317227A (en) * 1980-06-09 1982-02-23 Zenith Radio Corporation Multi-mode automatic channel frequency synthesis system
US4338531A (en) * 1980-09-15 1982-07-06 Corporate Equipment Company Slide wire device simulator circuit and method
NL8100033A (nl) 1981-01-07 1982-08-02 Philips Nv Signaaloverdrachtsinrichting met een in stappen instelbare overdrachtskarakteristiek.
US4516170A (en) * 1982-04-12 1985-05-07 Zenith Electronics Corporation Dual mode UHF tuning system
DE69225767T2 (de) * 1991-11-01 1999-01-14 Hewlett-Packard Co., Palo Alto, Calif. Programmierbares Kapazitätsverzögerungselement in Pseudo-NMOS-Technik
US5260643A (en) * 1992-07-16 1993-11-09 National Semiconductor Corporation Programmable reference voltage generator
GB2313004A (en) * 1996-05-07 1997-11-12 Advanced Risc Mach Ltd Digital to analogue converter
US6325481B1 (en) * 1999-08-13 2001-12-04 Hewlett-Packard Company Method and apparatus for pen temperature control in a thermal printer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065080B (de) * 1954-04-07 1959-09-10 Siemens Ag Einrichtung zur verlust-und blindleistungsarmen Umformung von Spannungen
FR1312007A (fr) * 1961-11-02 1962-12-14 Redresseur stabilisé
US3422423A (en) * 1965-01-04 1969-01-14 Sperry Rand Corp Digital-to-analog converter
US3551777A (en) * 1968-12-26 1970-12-29 Amp Inc Inverter-converter with regulation of ac and dc outputs
DE2107714C3 (de) * 1971-02-18 1981-08-06 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Schaltung zum Umschalten der Resonanzfrequenzen elektrischer Schwingkreise
BE791943A (fr) * 1972-02-18 1973-03-16 Telecomunicazioni Soc It Regulateur de tension et/ou de courant
JPS5250642B2 (https=) * 1973-03-28 1977-12-26

Also Published As

Publication number Publication date
NL165896B (nl) 1980-12-15
DE2530033A1 (de) 1976-01-29
US4015192A (en) 1977-03-29
FR2280252B1 (https=) 1981-01-02
NL165896C (nl) 1981-05-15
AU8275275A (en) 1977-01-06
NL7507599A (nl) 1976-01-07
FR2280252A1 (fr) 1976-02-20
CA1052920A (en) 1979-04-17
DE2530033C2 (de) 1982-09-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920704