GB901870A - A variable pulse width circuit - Google Patents
A variable pulse width circuitInfo
- Publication number
- GB901870A GB901870A GB1357661A GB1357661A GB901870A GB 901870 A GB901870 A GB 901870A GB 1357661 A GB1357661 A GB 1357661A GB 1357661 A GB1357661 A GB 1357661A GB 901870 A GB901870 A GB 901870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulse
- voltage
- pulse width
- width
- april
- 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
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000004069 differentiation Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000003079 width control Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
- H03K5/04—Shaping pulses by increasing duration; by decreasing duration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Networks Using Active Elements (AREA)
- Pulse Circuits (AREA)
Abstract
901,870. Transistor pulse modulation circuits. NIPPON ELECTRIC CO. Ltd. April 14, 1961 [April 18, 1960], No. 13576/61. Classes 40 (6) and 40 (5). A pulse width control circuit comprises a transis tor 6, normally biased back but rendered conductive at a predetermined time after the onset of a negative pulse at terminal A. The delay period and hence the width of the output pulse at terminal B is adjusted by variation of the capacitance of the base circuit. As described, device 8 is a voltage-sensitive capacitor controlled by the voltage at O, hence pulse width modulation may be achieved by variation of the voltage at O. The width modulated pulses may be converted into phase-modulated pulses by differentiation and shaping of the output at B. Device 8 may be replaced by a manually-controlled variable capacitor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2189460 | 1960-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB901870A true GB901870A (en) | 1962-07-25 |
Family
ID=12067797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1357661A Expired GB901870A (en) | 1960-04-18 | 1961-04-14 | A variable pulse width circuit |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1168954B (en) |
| GB (1) | GB901870A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE832446C (en) * | 1949-04-26 | 1952-02-25 | Siemens & Halske A G | Arrangement for generating length-modulated pulses |
| US2845548A (en) * | 1956-04-25 | 1958-07-29 | Westinghouse Electric Corp | Static time delay circuit |
| US2892101A (en) * | 1956-04-25 | 1959-06-23 | Westinghouse Electric Corp | Transistor time delay circuit |
-
1961
- 1961-04-14 GB GB1357661A patent/GB901870A/en not_active Expired
- 1961-04-15 DE DEN19893A patent/DE1168954B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1168954B (en) | 1964-04-30 |
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