SU1385229A1 - Frequency multiplier multiplying odd number of times - Google Patents

Abstract

The invention relates to radio engineering. The purpose of the invention is to reduce the level of side harmonics in the output signal while adjusting its amplitude. The device contains an input oscillating circuit (CK) 1, an output CK 2, an inductor (CI) 3, a ferrite toroidal magnetic conductor (FTM) 4, a load. Control winding 5 is inserted, and FTM 4 is made hollow and winding 5 is located inside and him. According to paragraph 2, CI 2 is connected in parallel with the output of QC 1 and the input of QC 2. According to paragraph 3, the 1st output of CI 3 is connected to the output of QC 1, and the 2nd output is connected to the input of QC 2. KK 1 is tuned to the frequency uj of the signal connected to its input source 7 of the input signal. CC 2 is tuned to the frequency N., where N is the required multiplication factor. Regulation of the amplitude of the output voltage is carried out by decreasing. The magnitude of the span and linearization of amber-weberx xk with growth depending on the control signal supplied to the winding 5. 2 Cp f-ly, 4 ill. ip (/

Description

FIG. g

eleven

The invention relates to radio engineering and can be used to generate harmonic signals of multiplied frequency, for example, in a radio transmitting equipment.

The purpose of the invention is to reduce the level of the N side harmonics in the output signal while adjusting its amplitude

Fig. 1 shows the circuit diagram of the proposed frequency multiplier an odd number of times; Fig 2 is the same as the variant; Fig. 3 shows the construction of a ferrite toroidal magnetic circuit with an inductance, and a control winding; .4 - the shape of the amperage characteristics of the inductor depending on the amount of current in the control winding,

An odd-numbered frequency multiplier contains an input oscillating circuit 1, an output oscillating circuit 2, an inductance 3, a ferrite toroidal magnetic conductor 4, a control winding 5, a load 6,

The frequency multiplier works oddly the next time;

The input oscillating circuit .1 is tuned to the frequency tO of the signal connected to its input of the input signal source 7, the output oscillating circuit 2 is tuned to the output multiplied frequency N, where N is the required multiplication factor,

When the source 7 is turned on, through the oscillating circuit 1 and the inductance 3, a sinusoidal current will flow at a frequency u), In both shown in FIG. 1 and 2 cases of x in the case of connecting the inductor 3 parallel to the output of the input oscillatory circuit 1 and the input of the output oscillatory circuit 2, and in the case of connecting one output of the inductor 3 to the output of the oscillating circuit 1, and the other oscillatory circuit 2, the flux linkage of the H of an inductance 3 cathode is associated with the flow of current i by a nonlinear dependence (FIG. 4). In this case, in the multiplier (FIG. 1), the shape of the flux linkage is distorted: dV

; telno, and tension U "-yy

frequency multiplier (fig. 2) form

and in

0

five

i

s 0

s

d

0

five

0

0

1, which indicates the presence of harmonics. However, when the inductor 3 is laid out on the hollow ferrite toroidal magnetic core 4, and the control winding 5, to which the signal from the source 8 of control signals is supplied, is inside it, as shown in FIG. 3, due to the symmetry of the amp-viper characteristics ( Fig. 4) for different control winding currents 5, the voltage spectrum of inductance 3 on katugak will contain only odd harmonics, i, e, the level of side even harmonics is reduced. On load 6 sec. using the output oscillating circuit 2 will stand out rn with frequency N., where N - odd l7

a number.

The amplitude of the output voltage is controlled by reducing the sweep and linearizing the ampere-swerve characteristics with increasing i pp depending on the control signal applied to the control winding.

Claims (3)

1. The frequency multiplier is an odd number of times, containing an input oscillating circuit, an output oscillating circuit, to the output of which a load is connected, an inductance coil that is placed on the ferritic toroidal magnetic circuit and connected between the input oscillatory circuit and the output oscillatory circuit, characterized in that , in order to reduce the level of side harmonics in the output signal while adjusting its amplitude, a winding was introduced into it, while the ferrite toroidal magnetic circuit was made olym and a control winding disposed therein, 2. The multiplier according to claim 1, 1, and 19, that the induction coil is connected parallel to the output of the oscillation circuit and the input of the oscillation circuit, 3. The multiplier of Claim 1, wherein the first lead of the inductor is connected to the output of the oscillating circuit, and the second lead to the output of the oscillating circuit. Fig.Z fce .; f ynpZ Lynp3 Phie. It.