SU1465948A1 - Current pulse generator - Google Patents

Abstract

The invention relates to a pulse technique and can be used to form Toka pulses in inductive loads. The purpose of the invention is to reduce the weight and size parameters by reducing the current loads of the input gates. The current pulse shaper contains a bridge circuit consisting of gates 1-4, a capacitor battery 9, an inductive load 12. Energy is supplied from the alternating voltage source 11 through the appropriate chain from a series-connected injected uncontrolled valve 7 (8), throttles 10, an alternating voltage source 11 and an input valve 6 (5) connected in parallel with the corresponding controlled ventilation 4 (2), which reduces the current loads of the input valves. 2 Il. i (Л С

Description

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The invention relates to a pulse technique and can be used to: generate current pulses: (b) inductive loads (for example): In the electromagnets of charge accelerators:: 5 x particles)

The purpose of the invention is to reduce: Iasog-dimensional: indicators of current pulse current generator due to a decrease in the current loads of the star valves,

Fig. 1 shows a current pulse shaper circuit; Fig. 2 shows timing diagrams of currents and for example -: Kenya on the elements of the driver and current pulses.

Form1-1raver of current pulses contains four controlled valves 1-4, which form a bridge, two controllable valves 5 and 6 of the input, two uncontrolled valves 7 and 8, a capacitor battery 9, a choke 10, a source 11 of alternating voltage, inductive load 12, sending unit 13, the inductive load 12 being included in one diagonal of the bridge, and the capacitor battery 9 - into the other, parallel to one of the controlled valves 4 (2), the energy starter circuit from the JHO connected uncontrolled veins - 1TIL 7 (8), drossel 10, source 11 and control Input valve 6 (5) FIG. 2 princes with teachers:

14- voltage source diagram 11) 15- diagrams of source current

16- diagram of the inductive load current 12j

17 is a diagram of the accumulator capacitor bank 9.

Form: rovate current pulse works as follows.

Assume that by the time t (Fig. 2), the capacitor battery 9 is charged and the voltage across its terminals and the voltage of the source 11 has a polarity indicated in Fig. 1 without brackets. At time t from the input of the control unit 13, the pulses arrive at. triggering vents 1 and 4, as a result of which the capacitor battery 9 begins to discharge to inductive load 12. The load current flows through the circuit; + battery 9 - vent-sh1 load 12 - valve 4 - battery 9 "At time t7, a trigger signal arrives at the input of valve 6 and through the choke 10 the current of source 11, closing along the circuit: source 11 - valve 6 : - 4-7 - choke 10 - - source 1 1. A current difference flows through controlled valve 4, this difference is equal to 14 time tj, this difference becomes equal to zero, as a result of which valve 4 closes and at interval t, -t choke 10 and inductive load 12 is connected in series, transferring the energy stored in them to condensate the battery 9 in the circuit: + source 11 - valve 6 - battery 9 valve 1 - load 12 - valve 7 - choke 10 - - source 11. At time t, the current of the specified circuit decreases to zero, and the storage capacitor battery 9 recharges to the maximum voltage with the polarity indicated in fig. 1 in the jumps. At the next input-voltage half-wave, the processes described above repeat, but since time tg, valves 2 and 3 are flowing, and at time t, valve 5 is turned on. During the period of supply voltage, inductive load 12 generates two single-field current pulses . By means of the control unit 13, I control the switching on phase of one of the additional gates 5 or 6 with respect to the phase at the same time to turn on the 1-1th main gates 2-5, i.e. By varying the time intervals and tj-t, it is possible to widely vary the amplitude of the voltage on the capacitor battery 9 and, accordingly, the amplitude of the current of the inductive load 12.

Thus, only input current flows through the input and uncontrolled valves, compensating for the loss of energy in the circuit, while the circuit current flows through the main valves.

Claims (1)

Invention Formula Current pulse shaper, containing four controllable valves, connected by bridge circuit, in diagonal between which between the points of connection of opposite electrodes controlled valves included a capacitor battery, to the connection point. The first terminal of the inductive load, two controllable input valves, a circuit of series-connected droplets and an alternating voltage source, a control unit, the input of which is connected to the control output of the alternating voltage source, and outputs - are connected to the first electrodes of controlled valves of the same name. control electrodes for valves and inlet valves, characterized in that fig 2 that, in order to reduce mass and mass indices, two uncontrolled gates were introduced into it, the second output of the inductive load is connected to the second electrodes of the controlled valves and, through the corresponding uncontrolled gates, to the corresponding pins of the series of series-connected chokes and the alternating voltage source , which are connected to the corresponding capacitor banks via appropriate controlled input gates.