GB1043247A - Improvements relating to tunnel diode oscillators - Google Patents
Improvements relating to tunnel diode oscillatorsInfo
- Publication number
- GB1043247A GB1043247A GB3061362A GB3061362A GB1043247A GB 1043247 A GB1043247 A GB 1043247A GB 3061362 A GB3061362 A GB 3061362A GB 3061362 A GB3061362 A GB 3061362A GB 1043247 A GB1043247 A GB 1043247A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformer
- tunnel diode
- series
- oscillator
- output
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B7/00—Generation of oscillations using active element having a negative resistance between two of its electrodes
- H03B7/02—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance
- H03B7/06—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance active element being semiconductor device
- H03B7/08—Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance active element being semiconductor device being a tunnel diode
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
1,043,247. Tunnel diode oscillating circuits; switching circuits. HOOVER Ltd. Aug. 7, 1963 [Aug. 9, 1962], No. 30613/62. Heading H3T. [Also in Division H2] A tunnel diode oscillator comprises a supply transformer 11, connected across A.C. terminals 13, 14, having a secondary voltage of a fraction of a volt, an output transformer 20 and a tunnel diode 10 connected in a series loop with the secondary winding 15 of the supply transformer and the primary winding 21 of the output transformer. Bursts of output pulses from the oscillator during the periods when the instantaneous potential across the tunnel diode is above the necessary minimum value and of the correct polarity are fed over transformer 20 to differentiating circuit 23, 24 and thence to the control electrode of S.C.R. 25, connected in series with load 28 and inductor 26 across supply terminals 13, 14. The pulse rate frequency of the oscillator may be varied by withdrawing a ferrite rod forming the core of the output transformer 20. If a burst of pulses is required during each half cycle two similar tunnel diodes may be connected in series opposition in the series loop or a second secondary winding and a duplicate circuit connected in the reverse sense may be provided. A small resistance 16 may be inserted in the series loop if the resistance of the transformer windings is not high enough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3061362A GB1043247A (en) | 1962-08-09 | 1962-08-09 | Improvements relating to tunnel diode oscillators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3061362A GB1043247A (en) | 1962-08-09 | 1962-08-09 | Improvements relating to tunnel diode oscillators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1043247A true GB1043247A (en) | 1966-09-21 |
Family
ID=10310401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3061362A Expired GB1043247A (en) | 1962-08-09 | 1962-08-09 | Improvements relating to tunnel diode oscillators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1043247A (en) |
-
1962
- 1962-08-09 GB GB3061362A patent/GB1043247A/en not_active Expired
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