SU415789A1 - PULSE GENERATOR - Google Patents

Description

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Generator It can be used to control matrix1 ferrid connectors by them, iHanpHiMep, a jaw-free automatic telephone station, as well as to start circuit state control devices and "commutated elements" to control matrix ferride connectors.

Known And | Mpulsny generator containing an impulse transformer, the primary winding of which is connected in series with the thyristor. Parallel to this circuit, a storage capacitor is connected, and a source of the power supply is connected to the point of connection of the primary winding of the pulse transformer and the storage capacitor via a charging choke and an additional I1-pulse transformer. From such a generator it is impossible to receive an additional “output pulse or a series of impulses shifted in time relative to the main output impulse: the pulse.

The purpose of the invention is to obtain an additional output pulse or series of pulses, which expands the functional capabilities of the generator. This is achieved by connecting in parallel to the storage capacitor. Successively connected — the primary winding of an additional impulse transformer, a dipistor and a capacitor, and an anode is connected to the cathode of the dipistor.

a diode whose cathode is connected to the capacitor capacitor plate.

On the flg. 1 shows a princess diagram of the proposed pulse generator; in fig. 2 shows a series of pulses, additionally removed from the generator.

The generator contains a pulse transformer 1, the primary winding of which is connected in series with the thyristor 2. Parallel to this circuit, the push-down capacitor t3 is connected. To the point of connection of the primary winding of the transformer and the opdator 3 through the charging choke 4 is connected plus the power supply. Parallel to kopdensator 3 there are connected in series the primary winding of an additional pulse transformer 5, dnistor 6 and capacitor 7. The anode of diode 8 is connected to the cathode of the dynistor, the cathode of which is connected to the capacitor plate 3.

In the initial state, the capacitors 3 and 7 are charged to a voltage equal to the voltage of the power source. When a triggering pulse is applied to the control electrode of the thyristor 2, the latter is turned on through the primary winding of transformer 1 and the discharge current of capacitors 3 and 7 flows. In the secondary winding of this transformer, a current pulse is generated which is used to control the ferrides of matrix Ferrite connectors Mx Connectors. As the capacitors of TOiK in the thyristor Nn circuit are discharged to a value equal to the current of the thyristor and it turns off. Capacitor J begins to charge from time to time, determined by the value of inductance of chokes 4 and the value of capacitance of capacitor 5. When the voltage on capacitor 3 reaches a value equal to the switching voltage of the dynistor 6, the next-minute power turns on. The discharge coil of capacitor 3 and the charge current of capacitor 7 flow through the nervous winding of the additional transformer 5. In the secondary wall of the transformer 5, a current pulse appears, which is fed to control devices of the state of the circuits and control elements of the matrix ferrid connectors . This impulse transfers into the state of "1 those ferrite cores of the control device, 1B of controlled prices. Of which there are faulty switching elements.

The current pulse removed from the secondary winding of the transformer /. Can be used simultaneously to control the ferrides of the connectors and to transfer the ferrite cores to the state "1" (with sequential switching on them with controlled elements). In the STOiM case, the reading windings of all the ferrite cores of the monitoring device are connected in series and connected to the pulse generator at points a and b to place the transformer 5.

If the choke 4 is designed so that it limits the charge current of the capacitors 5 and 7 to a value less than or equal to the turn-off current of the dynistor 6, the latter is turned off when the voltage across the capacitors 3 to 7 is the same. Under this condition, the oscillator can be used to obtain the pulse train shown in FIG. 2, namely: after each IMU 11, removed from the secondary winding of the transformer, a certain number is followed and the pulses 12, 13 and 14 are removed from the secondary winding of the transformer 5. To achieve this, the switch-on voltage of the source is selected to. two or more times less power supply voltage.

The formation of this series of pulses occurs in the following way.

If in the initial state the capacitors 3 and 7 are charged before the voltage of the power supply source, then when the thyristor 2 is turned on, they are discharged to the primary winding of the transformer 1, in the secondary winding of which an impulse appears //. After the thyristor is turned off, the capacitor 3 begins to charge and

When it reaches a level equal to the switching voltage of the dynistor 6, the next week is turned on. A primary current of the capacitor 3 and a charge current of the capacitor 7 flows through the primary winding of the transformer 5. A pulse 12 appears in the secondary winding of this transformer. When the voltage on the capacitors 5 and 7 reaches the same value, the dynistor turns off and to press. When the difference between the voltages on the capacitors 5 and 7 again reaches a value equal to the switching voltage of the dynistor, the next time again (Turns on. In the secondary winding of transformer 5, an impulse 13 appears and so on until the difference becomes less Dynistor inclusion wives.

The amplitude and duration of the pulses taken from the secondary winding of the transformer 5 are almost the same, and their number in series depends on the voltage of the power source and the turn-on voltage of the dynistor or other similar device. Pulse shape can

be rectangular, triangular, bell-shaped, etc.

Subject invention

A pulse generator containing a pulse transformer, the primary winding of which is connected in series with a thyristor, in parallel with which a tip capacitor is connected, and a power source is connected to the connection point of the primary winding after an impulse transformer and storage capacitor , characterized in that, in order to obtain an additional output pulse or series of pulses, parallel to the storage capacitor is included The primary winding of an additional pulse transformer, a dynistor and a capacitor are connected in series, and the diode anode, the cathode of which is connected to the capacitor of the storage capacitor, is connected to the cathode of the dynstor.

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