RO103407B1 - Sinusoidal oscillator transformer coupling - Google Patents

Sinusoidal oscillator transformer coupling

Info

Publication number
RO103407B1
RO103407B1 RO139053A RO13905389A RO103407B1 RO 103407 B1 RO103407 B1 RO 103407B1 RO 139053 A RO139053 A RO 139053A RO 13905389 A RO13905389 A RO 13905389A RO 103407 B1 RO103407 B1 RO 103407B1
Authority
RO
Romania
Prior art keywords
oscillator
transformer coupling
transistor
sinusoidal oscillator
current
Prior art date
Application number
RO139053A
Other languages
Romanian (ro)
Other versions
RO103407A2 (en
Inventor
Cristian Nicolae Onete
Original Assignee
îNTREPRINDEREA "TEHNOTON"
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by îNTREPRINDEREA "TEHNOTON" filed Critical îNTREPRINDEREA "TEHNOTON"
Priority to RO139053A priority Critical patent/RO103407B1/en
Publication of RO103407A2 publication Critical patent/RO103407A2/en
Publication of RO103407B1 publication Critical patent/RO103407B1/en

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  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

Inventia se refera la un oscilator sinusoidal cu cuplaj prin transformator consti tuind o perfectionare a inventiei principale cu nr. 97764, caracterizat prin aceea ca un tranzistor cu efect de cîmp cu canal N, T1, este polarizat printr-un divizor rezistiv R1 si R2 într-un punct static în care curentul sau de drena scade la cresterea temperaturii, scazînd curentul de baza al unui tranzistor T2 oscilator, compensînd astfel cresterea cu temperatura a curentului de colector al tranzistorului T2. Oscilatorul rezolva problema stabilitatii cu temperatura si este destinat utilizarii în constructia radioreceptoarelor.The invention relates to a sinusoidal oscillator with a transformer coupling constituting a refinement of the main invention no. 97764, characterized in that a field effect transistor with channel N1, T1 is polarized by a resistive divider R1 and R2 at a static point in which its current or the drain decreases as the temperature increases, decreasing the base current of a transistor T2 oscillator, compensating for the increase in temperature of collector current of transistor T2. The oscillator solves the problem of temperature stability and is intended for use in the construction of radio receivers.

RO139053A 1989-04-03 1989-04-03 Sinusoidal oscillator transformer coupling RO103407B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO139053A RO103407B1 (en) 1989-04-03 1989-04-03 Sinusoidal oscillator transformer coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO139053A RO103407B1 (en) 1989-04-03 1989-04-03 Sinusoidal oscillator transformer coupling

Publications (2)

Publication Number Publication Date
RO103407A2 RO103407A2 (en) 1991-12-02
RO103407B1 true RO103407B1 (en) 1992-07-25

Family

ID=20124394

Family Applications (1)

Application Number Title Priority Date Filing Date
RO139053A RO103407B1 (en) 1989-04-03 1989-04-03 Sinusoidal oscillator transformer coupling

Country Status (1)

Country Link
RO (1) RO103407B1 (en)

Also Published As

Publication number Publication date
RO103407A2 (en) 1991-12-02

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