SU27107A1 - Device for aperiodic frequency transformation - Google Patents

Description

In the previously filed zgshvkah authors have proposed ways to transform the frequency down, based on the special properties of non-linear oscillatory systems. At the same time, in the above-mentioned frequency transformation methods, the obtained effect was achieved by the fact that, on the one hand, the resonant properties of the system were used to compensate for constant parts of the capacitance and self-induction.

(equality wZ. and - :), and on the other hand, by applying the principle of regeneration, the influence of the constant part of the ohmic resistance was compensated. Thus, in the equation of electromotive forces, there remained, on the one hand, only substantially non-linear terms, and on the other hand, the actual, transform, voltage. As a result of this, the integrated frequency transformation methods possess substantially resonant properties, since the compensation of the constant parts of the capacitance and self-induction is possible only at a certain frequency.

For transformation purposes, the need to appropriately adjust the system to the frequency to be transformed is often undesirable, and the technique is faced with the task of implementing such a method of frequency transformation, in which the effect would be obtained automatically when exposed to any frequency. The object of the invention is to provide such a device for aperiodic frequency transformation so that the said transformation takes place at any frequency of the current force.

According to the invention, an electrical system is used in the device, the effective values of which depend on currents or voltages, and the constant (not dependent on current or voltage) parts are automatically completely or almost completely compensated.

The following simple case clarifies the idea underlying the proposed device. Let the system have nonlinear self-induction A, i.e. such, the effective value of which depends on the amplitude of the current passing through it. Let the dependence of self-induction on current be expressed by a linear function of this current, i.e. L lu (). Let the circuit consisting of such self-induction L and some constant resistance R be affected by the electromotive force of the form

  about sin t.

Then the equation of electromotive forces will be

LO -j (l + mO / + /; E. Sin of. The solution to this equation will be:

"

i-A Sin

t.

provided that 1) the constant part of self-induction L is compensated and 2) if the constant resistance R is compensated.

Indeed, then only one term remains in the left side of the differential equation, i.e.

n r T--

2, tQSina t,

and this equation is satisfied by the expression

to m LO

Consequently, in a compensated system, at any frequency of the acting electromotive force, solutions are automatically obtained whose frequency is equal to half the frequency of the operating force, regardless of the frequency.

This reasoning is applicable also when, instead of a variable of self-induction, a capacitance, a variable resistance or any combination of them will be variable. The considered special case of linear dependence of a parameter on current or voltage; the expression is not exceptional; For any degree of non-linearity of parameters in such a system, aperiodic frequency transformation will take place. So, if there is a quadratic dependence of the parameter on the current or voltage, you can transform the frequency into 3 down, etc.

In case of incomplete implementation of the required compensation or in the presence of various degrees of non-linearity of parameters, with a marked transformation

frequencies do not get only one required frequency. In this case, the transformation does not produce a purely harmonic process. The vibrations resulting from the transformation, besides the fundamental frequency, will contain another number of its harmonics.

In FIG. 1 depicts the scheme of the proposed device; FIG. 2-5 are other forms of the device of FIG. one.

L2 / and LI - self-induction, serving as the first / -2 to obtain the necessary compensation, the second LI - for communicating with the frequency to be transformed, L - self-induction, the effective value of which depends on the current passing through it (self-induction with iron). Resistors R, RI, R-2, self-induction and; lamps / and // are the elements required for compensation. By selecting self-induction M, resistances and operating points on the characteristics of the lamps, it is possible to achieve complete or almost complete compensation for the constant -parts of the parameters of the circuit L. Under the influence of an external force in this circuit with parameters compensated in this way, currents will be excited, whose frequencies to the frequency of the acting force.

FIG. 2 shows a friend similar circuit. Here the chain consists only of self-induction. In the above compensation scheme, self-induction compensation will take place. In fact, the voltage on the / -z coil will be MI,. Current

through the lamp / 7 will be proportional to this voltage, and the voltage on the capacitor will be proportional, i.e. in proportion to /. The current d) through the lamp / therefore will also be proportional to Z and, therefore, the voltage on the coil L will be proportional to

ZhZ-J-, what is the absolute value

and. t-it will depend on the values of MI, Sz, C, 5i and M. By appropriate selection of these values, one can appropriately compensate the constant part of the self-inductions included in circuit A. In such a system, under the action of an external force, independent | from its frequency, there will be a current for an hour that is a multiple of the frequency of the effective electric power. ,

FIG. 3 shows one of the possible schemes for aperiodic frequency transformation with variable capacitance. As such a capacitance, any capacitance with a dielectric can be applied, the dielectric constant of which depends on the applied voltage, for example, a capacitor with a Rochelle salt. In this case, according to the indicated scheme, it is possible to compensate for a constant part of the circuit capacitance and thus obtain the desired effect. FIG. 4 shows a diagram in which constant parts are compensated simultaneously for the purposes of transformation: self-induction L, capacitance C and resistance R of the circuit L.

FIG. 5 shows a circuit in which the circuit D consists of self-inductions and capacities (W and C-variable parameters). Here, the compensation of self-induction is carried out by scheme B, and the compensation of capacitance by scheme B.

In all the devices described, the non-linearity of parameters is necessary for frequency transformation (for example, self-induction with an iron core, a container with segnetium salt, etc.) that working TO4fta is established by means of an appropriate bias current or a bias voltage. However, the required nonlinearity of parameters can be implemented without introducing special nonlinearity elements (such as iron, Rogue salt, etc.) using the nonlinearity characteristics of electronic tubes for this purpose. This kind of non-linearity is a series of practical benefits in the area of | high frequencies, when the properties of iron and the corresponding dielectric make them unsuitable (more loss, etc.).

With the help of the device, you can get not only the frequency transformation down, but with the appropriate selection of nonlinearity for the frequency transformation up.

The subject matter of the invention.

Claims (5)

1. A device for aperiodic frequency transformation, characterized by the use of an electrical system, the effective values of the parameters of which depend on currents or voltages, and the constant (not dependent on current or voltage) parts are automatically or almost completely compensated. 2. In the device according to claim 1, use as a variable parameter self-induction with cores, the degree of magnetization of which depends on the amplitude of the currents or capacitance with a dielectric, the dielectric constant of which is a function of voltage or resistance not following Ohm’s law, or any combination thereof. 3. When the device is in accordance with claim 1, the application is to obtain the necessary dependence of the effective values of the parameters of the electrical system of electronic or ion lamps with properly selected operating points. 4. The form of the device according to claim 1, characterized in that separate devices are applied to compensate and create amplitude dependence, automatically supplying the system with currents or voltages of the corresponding phase and magnitude. 5.When the device according to PP 1-4 application of cascade transformation of frequencies. fig t .,; y., i g g: -, --V 4, .1n 4i. -2., i-i-VhГ - --- ™ -,, I .D%, .A g  1J, 47 1 I t 1 i VD g i "-" -vlWi / TJ j: MFR, 4. fni-T | K- -T rHi | ii- | nfn L-II-r i-if-j-aiii4e r3V „--.- ij; FIG 4 :. Ufl, Cj Ш I Jl .3, К f-Ь-Н-Н Same „W -О. , iU (.., - TRrtfC f Fig 5 c-lih, H #  k "E si I Ub /.,