GB1074666A - Improvements in or relating to harmonic generators - Google Patents
Improvements in or relating to harmonic generatorsInfo
- Publication number
- GB1074666A GB1074666A GB2568/66A GB256866A GB1074666A GB 1074666 A GB1074666 A GB 1074666A GB 2568/66 A GB2568/66 A GB 2568/66A GB 256866 A GB256866 A GB 256866A GB 1074666 A GB1074666 A GB 1074666A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- diode
- harmonic
- jan
- class
- 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
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
- H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
- H03B19/14—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a semiconductor device
-
- 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
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
- H03B19/16—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using uncontrolled rectifying devices, e.g. rectifying diodes or Schottky diodes
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/006—Functional aspects of oscillators
- H03B2200/007—Generation of oscillations based on harmonic frequencies, e.g. overtone oscillators
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
1,074,666. Transistor harmonic generator circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Jan. 19, 1966 [Jan. 23, 1965], No. 2568/66. Heading H3T. A harmonic generator of the type in which a ringing circuit is excited by a switching device (such as transistor Ts 1 ) has a diode in shunt with the ringing circuit so as to damp out oscillations after the first half-cycle and a temperature stabilized threshold circuit to remove spurious oscillation across the diode. As shown, T s1 is turned on by negative halfcycles of a 12 kc/s. square wave form a Schmitt circuit (not shown), giving a single half-cycle at a harmonic frequency across the circuit L 1 , C 2 . Further oscillation is minimized by diode D 1 and by transistors T s2' Ts 3 , which respectively operate in class AB and class C. The harmonic amplitude is stabilized against temperature by R 2 and by Ge diodes D 2 , D 3 which control the threshold of Ts 2 . Ts 3 may be biased by a potentiometer across D 2 , D 3 . The invention may be used as a carrier source in mobile telecommunications apparatus.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET27878A DE1258916B (en) | 1965-01-23 | 1965-01-23 | Circuit arrangement for temperature-stable generation of harmonics of a fundamental frequency, in particular for carrier generation for mobile carrier frequency devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1074666A true GB1074666A (en) | 1967-07-05 |
Family
ID=7553775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2568/66A Expired GB1074666A (en) | 1965-01-23 | 1966-01-19 | Improvements in or relating to harmonic generators |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1258916B (en) |
GB (1) | GB1074666A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014029413A1 (en) * | 2012-08-20 | 2014-02-27 | Telefonaktiebolaget L M Ericsson (Publ) | Device for frequency tripling |
WO2016041575A1 (en) * | 2014-09-16 | 2016-03-24 | Telefonaktiebolaget L M Ericsson (Publ) | A power efficient frequency multiplier |
-
1965
- 1965-01-23 DE DET27878A patent/DE1258916B/en active Pending
-
1966
- 1966-01-19 GB GB2568/66A patent/GB1074666A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014029413A1 (en) * | 2012-08-20 | 2014-02-27 | Telefonaktiebolaget L M Ericsson (Publ) | Device for frequency tripling |
WO2016041575A1 (en) * | 2014-09-16 | 2016-03-24 | Telefonaktiebolaget L M Ericsson (Publ) | A power efficient frequency multiplier |
Also Published As
Publication number | Publication date |
---|---|
DE1258916B (en) | 1968-01-18 |
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