SE7406277L - Programmerbar spenningskella. - Google Patents
Programmerbar spenningskella.Info
- Publication number
- SE7406277L SE7406277L SE7406277A SE7406277A SE7406277L SE 7406277 L SE7406277 L SE 7406277L SE 7406277 A SE7406277 A SE 7406277A SE 7406277 A SE7406277 A SE 7406277A SE 7406277 L SE7406277 L SE 7406277L
- Authority
- SE
- Sweden
- Prior art keywords
- voltage source
- programmable voltage
- programmable
- source
- voltage
- Prior art date
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
- H03J5/0263—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 the digital values being held in an auxiliary non erasable memory
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7406277A SE7406277L (sv) | 1974-05-10 | 1974-05-10 | Programmerbar spenningskella. |
NL7505107A NL7505107A (nl) | 1974-05-10 | 1975-04-29 | Programmeerbare spanningsbron. |
JP50055363A JPS50155955A (sv) | 1974-05-10 | 1975-05-08 | |
FR7514559A FR2270634A1 (en) | 1974-05-10 | 1975-05-09 | Reference voltage for TV and radio tuning - has potentiometers replaced by cheap electronic circuits and uses analogue-digital converter |
DE19752520676 DE2520676A1 (de) | 1974-05-10 | 1975-05-09 | Programmierbare spannungsquelle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7406277A SE7406277L (sv) | 1974-05-10 | 1974-05-10 | Programmerbar spenningskella. |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7406277L true SE7406277L (sv) | 1975-11-11 |
Family
ID=20321101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7406277A SE7406277L (sv) | 1974-05-10 | 1974-05-10 | Programmerbar spenningskella. |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS50155955A (sv) |
DE (1) | DE2520676A1 (sv) |
FR (1) | FR2270634A1 (sv) |
NL (1) | NL7505107A (sv) |
SE (1) | SE7406277L (sv) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1061633B (it) * | 1976-05-03 | 1983-04-30 | Voxson Spa | Radiori cevitore o sintonizzatore munito di mezzi di memorizzazione a stato solido per una molteplicita di frequenze di ricezione |
US4164711A (en) * | 1977-10-31 | 1979-08-14 | Rca Corporation | Tuning system including a memory for storing tuning information with user controls arranged to facilitate its programming |
US4289999A (en) * | 1979-05-14 | 1981-09-15 | Ampex Corporation | Digital variable voltage level control circuit with automatic return to neutral |
DE3216547C1 (de) * | 1982-05-04 | 1983-10-06 | Krautkraemer Gmbh | Verfahren und Schaltungsvorrichtung zum Erzeugen und Veraendern einer vorbestimmten Anzahl voneinander unabhaengiger Gleichspannungen |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5141522B2 (sv) * | 1971-12-29 | 1976-11-10 |
-
1974
- 1974-05-10 SE SE7406277A patent/SE7406277L/sv unknown
-
1975
- 1975-04-29 NL NL7505107A patent/NL7505107A/xx unknown
- 1975-05-08 JP JP50055363A patent/JPS50155955A/ja active Pending
- 1975-05-09 FR FR7514559A patent/FR2270634A1/fr active Granted
- 1975-05-09 DE DE19752520676 patent/DE2520676A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2520676A1 (de) | 1975-11-13 |
NL7505107A (nl) | 1975-11-12 |
JPS50155955A (sv) | 1975-12-16 |
FR2270634B1 (sv) | 1977-04-15 |
FR2270634A1 (en) | 1975-12-05 |
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