GB1185799A - Square-Wave Generator - Google Patents
Square-Wave GeneratorInfo
- Publication number
- GB1185799A GB1185799A GB5640868A GB5640868A GB1185799A GB 1185799 A GB1185799 A GB 1185799A GB 5640868 A GB5640868 A GB 5640868A GB 5640868 A GB5640868 A GB 5640868A GB 1185799 A GB1185799 A GB 1185799A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- pulse
- transistor
- line
- saturation
- 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
- ZEIHZWQYRTVVMA-UHFFFAOYSA-N 2-bromo-1-[6-(dimethylamino)naphthalen-2-yl]ethanone Chemical compound C1=C(C(=O)CBr)C=CC2=CC(N(C)C)=CC=C21 ZEIHZWQYRTVVMA-UHFFFAOYSA-N 0.000 abstract 1
- 235000014785 Bergenia crassifolia Nutrition 0.000 abstract 1
- 240000004972 Bergenia crassifolia Species 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000009966 trimming Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
- H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Pulse Circuits (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
1,185,799. Delay line pulse oscillator circuits. INSTYTUT BADAN JADROWYCH. 28 Nov., 1968 [1 Dec., 1967], No. 56408/68. Heading H3T. A square wave oscillator comprises a transistor having negative feedback between output and input via a delay line comprising a number of sections 25-28 selectively switchable at 6-9 into circuit so as to vary its length and thus the oscillation frequency. In the circuit shown, when the transistor switches from cut off to saturation the resulting pulse at its collector passes through the line to cut-off the transistor again, the resulting pulse restoring the saturation-state after the delay so that the circuit oscillates between the states. Trimming capacitors are provided and the lines are double screened to prevent harmonic operation. An external line may be connected into circuit by switch 10. A strobing pulse may be obtained from a shaping circuit 37, 38 and the amplitude is adjusted by potentiometer 31 which varies the collector supply, the meter 33 measuring the supply voltage and thus indicating the pulse amplitude.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL123838A PL58855B1 (en) | 1967-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1185799A true GB1185799A (en) | 1970-03-25 |
Family
ID=19949802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5640868A Expired GB1185799A (en) | 1967-12-01 | 1968-11-28 | Square-Wave Generator |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1811786A1 (en) |
| FR (1) | FR1599119A (en) |
| GB (1) | GB1185799A (en) |
| NL (1) | NL6817071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2300948B (en) * | 1995-05-17 | 1999-10-27 | Altera Corp | Techniques for programming programmable logic array devices |
| US6384630B2 (en) | 1996-06-05 | 2002-05-07 | Altera Corporation | Techniques for programming programmable logic array devices |
-
1968
- 1968-11-28 NL NL6817071A patent/NL6817071A/xx unknown
- 1968-11-28 GB GB5640868A patent/GB1185799A/en not_active Expired
- 1968-11-29 DE DE19681811786 patent/DE1811786A1/en active Pending
- 1968-12-02 FR FR1599119D patent/FR1599119A/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2300948B (en) * | 1995-05-17 | 1999-10-27 | Altera Corp | Techniques for programming programmable logic array devices |
| US6184705B1 (en) | 1995-05-17 | 2001-02-06 | Altera Corporation | Techniques for programming programmable logic array devices |
| US6384630B2 (en) | 1996-06-05 | 2002-05-07 | Altera Corporation | Techniques for programming programmable logic array devices |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6817071A (en) | 1969-06-03 |
| DE1811786A1 (en) | 1970-03-05 |
| FR1599119A (en) | 1970-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |