GB670887A - Improvements in or relating to sawtooth current generators - Google Patents
Improvements in or relating to sawtooth current generatorsInfo
- Publication number
- GB670887A GB670887A GB2471849A GB2471849A GB670887A GB 670887 A GB670887 A GB 670887A GB 2471849 A GB2471849 A GB 2471849A GB 2471849 A GB2471849 A GB 2471849A GB 670887 A GB670887 A GB 670887A
- Authority
- GB
- United Kingdom
- Prior art keywords
- saw
- tooth
- valve
- blocking oscillator
- relating
- 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
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
- H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
- H03K4/39—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier
- H03K4/43—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier combined with means for generating the driving pulses
Abstract
670,887. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 20, 1950 [Sept. 27, 1949], No. 24718/49. Class 40 (vi). In a saw-tooth current generator of the type comprising a blocking oscillator and an amplifier which feeds the saw-tooth wave to an inductance, a winding of the blocking oscillator transformer together with a resistance is included in the cathode circuit of a valve of the amplifier to provide negative-feedback and so linearize the saw-tooth wave in the inductance. In the circuit shown the saw-tooth is generated by charging a capacitor 7 and discharging it rapidly through a blocking oscillator valve 2, 8, 6. One winding of the blocking oscillator transformer is included in the cathode units of this valve and of the output valve is shunted by a resistor of a value that the desired amount of feed-back is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2471849A GB670887A (en) | 1949-09-27 | 1949-09-27 | Improvements in or relating to sawtooth current generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2471849A GB670887A (en) | 1949-09-27 | 1949-09-27 | Improvements in or relating to sawtooth current generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB670887A true GB670887A (en) | 1952-04-30 |
Family
ID=10216145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2471849A Expired GB670887A (en) | 1949-09-27 | 1949-09-27 | Improvements in or relating to sawtooth current generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB670887A (en) |
-
1949
- 1949-09-27 GB GB2471849A patent/GB670887A/en not_active Expired
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