IT1062107B - Circuito per la produzione di tensioni continue ad impulsi - Google Patents
Circuito per la produzione di tensioni continue ad impulsiInfo
- Publication number
- IT1062107B IT1062107B IT24991/76A IT2499176A IT1062107B IT 1062107 B IT1062107 B IT 1062107B IT 24991/76 A IT24991/76 A IT 24991/76A IT 2499176 A IT2499176 A IT 2499176A IT 1062107 B IT1062107 B IT 1062107B
- Authority
- IT
- Italy
- Prior art keywords
- production
- circuit
- continuous pulse
- pulse voltages
- voltages
- Prior art date
Links
Classifications
-
- 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
- H03M1/66—Digital/analogue converters
- H03M1/82—Digital/analogue converters with intermediate conversion to time interval
- H03M1/822—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation
- H03M1/827—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation in which the total pulse width is distributed over multiple shorter pulse widths
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Analogue/Digital Conversion (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2531945A DE2531945C3 (de) | 1975-07-17 | 1975-07-17 | Schaltung zur Erzeugung von Gleichspannungen |
DE19752548762 DE2548762A1 (de) | 1975-10-31 | 1975-10-31 | Schaltung zur erzeugung von gleichspannungen aus impulsen |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1062107B true IT1062107B (it) | 1983-06-25 |
Family
ID=25769168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT24991/76A IT1062107B (it) | 1975-07-17 | 1976-07-02 | Circuito per la produzione di tensioni continue ad impulsi |
Country Status (8)
Country | Link |
---|---|
US (1) | US4087813A (it) |
JP (1) | JPS5211856A (it) |
FR (1) | FR2318538A1 (it) |
GB (1) | GB1553697A (it) |
HK (1) | HK21180A (it) |
IT (1) | IT1062107B (it) |
MY (1) | MY8100048A (it) |
NL (1) | NL7607921A (it) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2608268C2 (de) * | 1976-02-28 | 1978-04-13 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Verfahren zum Erzeugen einer veränderbaren Folge von Impulsen und Schaltungsanordnung zur Durchführung des Verfahrens |
JPS547263A (en) * | 1977-06-20 | 1979-01-19 | Hitachi Ltd | D-a converter |
JPS6013583B2 (ja) * | 1977-09-29 | 1985-04-08 | 松下電器産業株式会社 | D−a変換装置 |
US4364026A (en) * | 1979-11-30 | 1982-12-14 | Rca Corporation | Digital-to-analog converter useful in a television receiver |
JPS58121827A (ja) * | 1982-01-14 | 1983-07-20 | Nec Corp | パルス発生回路 |
JPS63246928A (ja) * | 1987-04-02 | 1988-10-13 | Nippon Precision Saakitsutsu Kk | D/a変換装置 |
US4940979A (en) * | 1988-04-26 | 1990-07-10 | Hewlett-Packard Company | Combined rate/width modulation arrangement |
DE58909454D1 (de) * | 1989-07-06 | 1995-11-02 | Itt Ind Gmbh Deutsche | Digitale Steuerschaltung für Abstimmsysteme. |
DE3933491A1 (de) * | 1989-10-06 | 1991-04-18 | Endress Hauser Gmbh Co | Anordnung zur umwandlung einer elektrischen eingangsgroesse in ein dazu proportionales elektrisches gleichsignal |
FR2670307A1 (fr) * | 1990-12-11 | 1992-06-12 | Oberthur Ckd | Dispositif generateur de tension de programmation pour carte a memoire et procede d'etalonnage d'un tel dispositif. |
DE4106431C1 (it) * | 1991-02-26 | 1992-02-20 | Siemens Ag, 8000 Muenchen, De | |
GB2330707B (en) * | 1997-10-23 | 2001-10-24 | Nokia Mobile Phones Ltd | Digital to analogue converter |
US6879201B1 (en) * | 2002-04-01 | 2005-04-12 | Xilinx, Inc. | Glitchless pulse generator |
US7855669B2 (en) | 2008-09-26 | 2010-12-21 | Silicon Laboratories, Inc. | Circuit device to generate a high precision control signal |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954165A (en) * | 1956-04-20 | 1960-09-27 | Bell Telephone Labor Inc | Cyclic digital decoder |
US3603977A (en) * | 1969-06-19 | 1971-09-07 | Westinghouse Electric Corp | Digital-to-analog converter utilizing pulse duration modulation |
US3668560A (en) * | 1970-07-09 | 1972-06-06 | Research Corp | Pulse-width frequency modulation device |
US3629710A (en) * | 1970-12-16 | 1971-12-21 | Beckman Instruments Inc | Digitally controlled pulse generator |
US3681707A (en) * | 1971-04-27 | 1972-08-01 | Autech Corp | Digital adf tuning indicator |
DE2317851B2 (de) * | 1973-04-10 | 1975-04-24 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig, 8510 Fuerth | Digital-Analog-Wandler |
US3942171A (en) * | 1974-04-03 | 1976-03-02 | Texas Instruments Incorporated | Scanning system for digital-analog converter |
-
1976
- 1976-06-14 GB GB24518/76A patent/GB1553697A/en not_active Expired
- 1976-07-02 IT IT24991/76A patent/IT1062107B/it active
- 1976-07-13 FR FR7621486A patent/FR2318538A1/fr active Granted
- 1976-07-16 NL NL7607921A patent/NL7607921A/xx not_active Application Discontinuation
- 1976-07-16 JP JP51084923A patent/JPS5211856A/ja active Pending
- 1976-07-19 US US05/706,480 patent/US4087813A/en not_active Expired - Lifetime
-
1980
- 1980-04-17 HK HK211/80A patent/HK21180A/xx unknown
-
1981
- 1981-12-30 MY MY48/81A patent/MY8100048A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US4087813A (en) | 1978-05-02 |
FR2318538B1 (it) | 1983-02-11 |
GB1553697A (en) | 1979-10-03 |
MY8100048A (en) | 1981-12-31 |
HK21180A (en) | 1980-04-25 |
JPS5211856A (en) | 1977-01-29 |
FR2318538A1 (fr) | 1977-02-11 |
NL7607921A (nl) | 1977-01-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950727 |