GB747573A - Improvements in or relating to circuit arrangements for generating magnetic fields - Google Patents
Improvements in or relating to circuit arrangements for generating magnetic fieldsInfo
- Publication number
- GB747573A GB747573A GB2415153A GB2415153A GB747573A GB 747573 A GB747573 A GB 747573A GB 2415153 A GB2415153 A GB 2415153A GB 2415153 A GB2415153 A GB 2415153A GB 747573 A GB747573 A GB 747573A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diodes
- rectifiers
- sept
- radar
- circuit
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
- G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
- G01S7/10—Providing two-dimensional and co-ordinated display of distance and direction
- G01S7/12—Plan-position indicators, i.e. P.P.I.
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
747,573. Saw-tooth generating circuits; radar; cathode-ray tube circuits. CINEMA. TELEVISION, Ltd. Sept. 1, 1954 [Sept. 1, 1953], No. 24151/53. Classes 40 (6) and 40 (7). A circuit for generating a magnetic field having a first linear relation to an input voltage over a range about zero, other linear relations in ranges beyond and a fixed value beyond that comprises a pair of valves 1, 2 coupled by a constant current device 3 in their common cathode lead and coils 13, 14 in series with tapped resistances 15, 16 and 17, 18 in each anode-cathode lead, the taps being connected through rectifiers 20, 22 and resistors 19, 21 to the opposite anode. The anodes currents will respond to grid voltage changes as at OA and OA<SP>1</SP> until one or other of the diodes conducts when the response will be as at AB or AB<SP>1</SP> until one valve passes the whole of the current that the constant current valve 3 will pass whereupon no further change of current occurs. Further diodes may be provided to produce regions of different slope to approximate to any desired characteristic and the rectifiers may be connected such that the characteristic is asymmetric with respect to the origin. Further, the diodes may be reversed so that the slope increases instead of decreases. The circuit is suitable for use for deflecting the beam of a C.R. tube in a radar P.P.I. system to provide regions of different scale around the central region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2415153A GB747573A (en) | 1953-09-01 | 1953-09-01 | Improvements in or relating to circuit arrangements for generating magnetic fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2415153A GB747573A (en) | 1953-09-01 | 1953-09-01 | Improvements in or relating to circuit arrangements for generating magnetic fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB747573A true GB747573A (en) | 1956-04-11 |
Family
ID=10207199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2415153A Expired GB747573A (en) | 1953-09-01 | 1953-09-01 | Improvements in or relating to circuit arrangements for generating magnetic fields |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB747573A (en) |
-
1953
- 1953-09-01 GB GB2415153A patent/GB747573A/en not_active Expired
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