GB1475819A - Staircase waveform signal generator - Google Patents
Staircase waveform signal generatorInfo
- Publication number
- GB1475819A GB1475819A GB1604375A GB1604375A GB1475819A GB 1475819 A GB1475819 A GB 1475819A GB 1604375 A GB1604375 A GB 1604375A GB 1604375 A GB1604375 A GB 1604375A GB 1475819 A GB1475819 A GB 1475819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- transistor
- comparator
- output
- switch
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/02—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform
- H03K4/023—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform by repetitive charge or discharge of a capacitor, analogue generators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manipulation Of Pulses (AREA)
- Amplifiers (AREA)
Abstract
1475819 Staircase waveform generator COM. PAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 18 April 1975 [24 April 1974] 16043/75 Heading H3T In a staircase waveform generator a capacitor 2 is charged from a source 40 via a switch 4, the capacitor forming part of an integrator 1, 2, 3 the output of which is A.C. coupled via a capacitor 12 to a comparator 5 which compares changes in the integrator output with a reference. The output of comparator 5 is used to control the switch 4. The capacitor 2 is discharged by further switch 16 under control of signals at 17. As described, at the beginning of each staircase wave, transistor 4 is conductive so that capacitor 2 charges comparatively rapidly until the comparator 5 changes state, when transistor 4 is turned off. The output 30 then remains at its step value until capacitor 12 discharges sufficiently via resistor 11 to reset comparator 5 so that transistor 4 is again turned on. This sequence is repeated so that a staircase wave is generated at 30 until capacitor 2 is discharged by a pulse at 17 which turns on transistor 16. The time constant 11, 12 should be considerably greater than the effective time constant 1, 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7414299A FR2279263A1 (en) | 1974-04-24 | 1974-04-24 | SIGNAL GENERATOR IN STAIRS STEPS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1475819A true GB1475819A (en) | 1977-06-10 |
Family
ID=9138072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1604375A Expired GB1475819A (en) | 1974-04-24 | 1975-04-18 | Staircase waveform signal generator |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE827894A (en) |
| DE (1) | DE2517852A1 (en) |
| DK (1) | DK174475A (en) |
| FR (1) | FR2279263A1 (en) |
| GB (1) | GB1475819A (en) |
| IE (1) | IE41015B1 (en) |
| IT (1) | IT1037579B (en) |
| LU (1) | LU72299A1 (en) |
| NL (1) | NL7504888A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4804863A (en) * | 1986-11-12 | 1989-02-14 | Crystal Semiconductor Corporation | Method and circuitry for generating reference voltages |
| AT401976B (en) * | 1993-04-08 | 1997-01-27 | Sassmann Alfred | ARRANGEMENT FOR REGULATING THE POWER OUTPUT OF SOLAR CELL SYSTEMS |
-
1974
- 1974-04-24 FR FR7414299A patent/FR2279263A1/en active Granted
-
1975
- 1975-04-14 BE BE1006591A patent/BE827894A/en unknown
- 1975-04-17 LU LU72299A patent/LU72299A1/xx unknown
- 1975-04-18 GB GB1604375A patent/GB1475819A/en not_active Expired
- 1975-04-22 DE DE19752517852 patent/DE2517852A1/en not_active Withdrawn
- 1975-04-23 DK DK174475A patent/DK174475A/en unknown
- 1975-04-23 IT IT2261875A patent/IT1037579B/en active
- 1975-04-23 IE IE90775A patent/IE41015B1/en unknown
- 1975-04-24 NL NL7504888A patent/NL7504888A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2279263B1 (en) | 1976-12-17 |
| NL7504888A (en) | 1975-10-28 |
| IT1037579B (en) | 1979-11-20 |
| DE2517852A1 (en) | 1975-11-06 |
| FR2279263A1 (en) | 1976-02-13 |
| IE41015B1 (en) | 1979-09-26 |
| BE827894A (en) | 1975-10-14 |
| LU72299A1 (en) | 1976-03-17 |
| IE41015L (en) | 1975-10-24 |
| DK174475A (en) | 1975-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |