SU365820A1 - ALL-UNION PATENT-iLXHH4Ef ^ HA4 - Google Patents

Description

one

The proposed device relates to radio electronics, in particular to oscillator sweep generators.

Generators of sawtooth voltage are known in the iKOTOipbix and thyristor .x in the control circuit of the power electrode. A current flows (the potential of the control electrode is positive with respect to the cathode), its magnitude determines the opening voltage of the thyristor.

Such an arrangement for the construction of generators will result in deficiency in mechanization of Š and Ische1NPost11 due to the fact that during the operation of the thyristor on the thyristor, the pressure on the thyristor overestimation of the thyristor to change it, the figure will overestimate the change of force, the figure will have the target to change the figure, it will overestimate the level of the thyristor to change the figure, it will overestimate the control signal, the figure will change the figure, it will overestimate the control signal, the figure will change the figure, it will overestimate the control unit, it will overestimated the thyristor to change the figure, it will overestimate the control unit to change the current level of the thyristor to change the figure, it will overestimate the control unit to change the current level of the thyristor. values at the time of opening.

With a gap ttysheiiii. noise immunity and obtaining two ramp-saw voltage growth rates — first more and then less — in the proposed 1I generator; from the input to the aorny 1 to: also connected to the connection of a dimic capacitor: the transformer’s main winding; enter the 1H1 dInnstor, the anode of which is node1clic to the aiHoay of the thyristor, the control electrode of which is connected through a circuit to the secondary winding of the transistor.

On the drawing far-dah PRINCIPAL electrical circuit.

Device CONTROV1IT .TI | RI STOR /, DI1Nistor 2, dpody 3 and 4, re.3istor {5, 6 and 7, capacitors S and 9, transformer W, switch .//,: o. Direction 12, Confirmation of the location 13.

Generator works following.

When generating, a single-type voltage of 1 is at ONE speed of 1 height and is outputted by the reader // zaYMY | ka. After the power supply of 1 APL is supplied, capacitors 8 and 9; Begin to charge through the resistor 5, as a result of which an increasing voltage appears at the output of the generator. When 1NI is reached on dynistor 2 (the voltage that is open to the voltage of its opening, it is opened, AND (capacitor 9 is discharged through the dynistor 2 n to the primary winding of transformer 10, at the same time on 1V1 on the secondary winding The positive part of the impulse goes through the current 3 to the thyristor control electrode, opening it. As a result, the capacitor 8 is discharged through the thyristor (I) and the resistor 6, which causes the output voltage of the output voltage to decrease rapidly. some great Thyristor / closed, and capacitors 8 and 9 BiHOBb begin to be charged, ie. e. starts a new cycle of the sawtooth oscillation.