SU938375A1 - Pulse generator - Google Patents

Description

(54) PULSE GENERATOR

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The image is a pulse heat and can be used, for example, for electrolysis with a variable current with a constant value of 5 {Y1tsey, a pulse of a relay response and a pulse width.

A pulse generator is known that contains a storage capacitor connected through the transformer windings, a peaicTop to the power supply to the diode, Q parallel to the capacitor and one of the o & transformer coils included a l switch.

However, the constant component of the source current is not used in the load circuit of this generator.

A pulse generator is known that contains a two-section choke, the intermediate terminal of which is connected via a capacitor to the first bus of the power supply jo, the first terminal of the chokes is connected to the second power supply through a thyristor (controlled switch); The secondary power supply terminal through another capacitor and the transformer winding is connected to the first bus of the power supply source 2 ..

However, the scheme of a known generator is complex, since it contains a managed switch.

The purpose of isophene is to simplify the generator.

The goal is achieved in that a pulse generator containing a two-second choke, the intermediate terminal of which is connected to the first capacitor plate, the second capacitor plate is connected to one output of the power supply, the first output of the two-section throttle is connected to another output of the power supply, and the second output is through an additional valve - to the second capacitor lining.

In the drawing, presented is “1a principle electric pulse generator imPulses.

Claims (2)

The pulse generator contains a capacitor 1, a daod (valve) 2, a choke with sections 3 and 4, a load in the form of seconds 5 and 6 under w / w, switch 7, rheoisgor 8, source 9 g shtany. The power source can be a half-wave drive, a direct current voltage, or a generator of pulses of the same sign. The generator works as follows. We first consider switching it on to a source of 9 constant emf with the same polarity as that of the rectifier and suppose conditions for periodic transients. At the first moment, the resistance of the capacitor 1 is zero, and in sections 3 and 5 there is an in (uktirovanny emf directed against the emf of source 9 and deLaccio equal to zero current through the capacitor 1. Ie due to the presence of veytil 2 induced emf in the section The 4 chokes and relay coil sections 6, according to, cannot create their current component through capacitor 1. As a result, short circuits of the mutual inductances of the choke and relay sections are prevented (at zero resistance of the resistor 8). y, may occur by After the first moment, only through section 3 of the chokes, capacitor 1 and section 5 of the relay, which will increase to a maximum and then decrease to zero. This first stage of the transition process characterizes inductive EMF and the voltage on capacitor I increases, until the last greater than the sum of the instantaneous values of the inductive emf in sections 4 and 6, therefore causing a current through valve 2, or until such a current arises because the sum of the inductive emf of all the throttle sections and the relay will be less than the source emf. The said current i-j will increase more rapidly than the current when all inductivities are turned on and in the absence of capacitor 1, if the share of turns around current -i / v is equal to or less than 50%. The second stage of the transition process begins with the opening of the valve 2 and the occurrence of current in sections 4 and 6, and ends with the termination of the current in the capacitor I and the creation of an amplifier with ampereite. The generator (without a spark) disconnects the generator from the source 9 constant EMF. the capacitor I, as well as in all sections of the 51H throttle and the relay, is spent on maintaining the current in the circuit: capacitor I section 4 throttle - valve 2 resistor 8 (if w is) - section 6 of the relay. Since the active resistance of the relay coil is relatively large, the predominant part of the aforementioned supply of energy is spent for a long time. holding the relay in the actuated state. If such a delay is desired to be maximized, the discharge current in the above circuit should be aperiodic, and sometimes the switching on of the adjusting resistor 8 can help. The load is not only the winding section of the relay and can be switched on in various ways: or. As shown in the drawing (for expanding the pulse by an earlier occurrence and later termination), or in series with a valve (for delaying the pulse for a relay), or in series with a capacitor, when according to the load, the capacitor can only charge current, or the same, but when it can flow as a charge current, Tflk and a discharge current of the capacitor (electrolysis with an alternating current with a constant component), etc. If the load has sufficient inductance, then it can be used in the generator circuit as drossel. The switching mode of the load operation modes can be accomplished using switch 7. Thus, the proposed generator circuit is simpler than the known ones, since it does not contain controllable switches. Claims An impulse generator comprising a two-section choke, the intermediate terminal of which is connected to the first capacitor plate, the second plate of the capacitor is connected to one output of the power supply, characterized in that, for the purpose of simplification, the first output of the two-section choke is connected to another output of the power source and the second output through an additional valve - to the second facing of the capacitor. - .. Sources of information taken into account during the examination. 1. USSR author's certificate № 5О8912, cl. N OZ K 3/53, 1972. 2. Authorship JV of USSR USSR M 7O2492, cl. N OZ K 3/53, 1978 (prototype).