GB867563A - Improvements in or relating to circuit arrangements for pulse modulation of a magnetron - Google Patents
Improvements in or relating to circuit arrangements for pulse modulation of a magnetronInfo
- Publication number
- GB867563A GB867563A GB384760A GB384760A GB867563A GB 867563 A GB867563 A GB 867563A GB 384760 A GB384760 A GB 384760A GB 384760 A GB384760 A GB 384760A GB 867563 A GB867563 A GB 867563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetron
- switch
- stray capacitance
- tube
- fired
- 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
- 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
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
- H03K3/55—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a gas-filled tube having a control electrode
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/78—Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number
Landscapes
- Microwave Tubes (AREA)
Abstract
867,563. Valve pulse generating circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 3, 1960 [Feb. 6, 1959], No. 3847/60. Class 40(6) In a circuit for the pulse modulation of a magnetron 7, a capacitive element 1 is successively discharged through the magnetron 7 under control of a first switch such as 6 in parallel with a series combination of a second switch such as 10 and a resistor 3, the second switch being closed before the first switch. The circuit described is suitable for generating short duration pulses. Capacitor 1 is charged from the supply E via resistors 2, 3, 4, resistors 3, 4 having preferably the same value. The switching tube 10 is fired first by a synchronizing pulse from source 11, discharging the stray capacitance 8 to half its voltage and charging stray capacitance 9 to half voltage. The half voltage provided across the magnetron is insufficient to cause appreciable current. After a period determined by the delay circuit 12, the switching tube 6 is fired, discharging capacitor 1 through the magnetron 7 and completing the charge and discharge of the stray capacitance 9, 8. The provision of tube 10 reduces the anode dissipation of tube 6 due to stray capacitance charge and discharge to one quarter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL235868 | 1959-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB867563A true GB867563A (en) | 1961-05-10 |
Family
ID=19751554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB384760A Expired GB867563A (en) | 1959-02-06 | 1960-02-03 | Improvements in or relating to circuit arrangements for pulse modulation of a magnetron |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1091618B (en) |
| FR (1) | FR1247211A (en) |
| GB (1) | GB867563A (en) |
| NL (1) | NL235868A (en) |
-
0
- NL NL235868D patent/NL235868A/xx unknown
-
1960
- 1960-02-02 DE DEN17828A patent/DE1091618B/en active Pending
- 1960-02-03 GB GB384760A patent/GB867563A/en not_active Expired
- 1960-02-05 FR FR817655A patent/FR1247211A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1247211A (en) | 1960-11-25 |
| NL235868A (en) | |
| DE1091618B (en) | 1960-10-27 |
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