SU124207A1 - Single-point switch on ferrite transistor cells - Google Patents

Description

The switch described uses single-feed cells with no chalk-food delay circuits. To obtain at the output of the device a series of pulses with any number of pulses. series in the device provides control inputs. By combining the potentials at these inputs, you can get any number of steps in a cycle. To ensure reliable operation of the device circuit, a cell with a strong positive feedback is included.

FIG. 1 is a circuit diagram of a switch; in fig. 2 is a schematic diagram of a cell for delaying a clock pulse.

The generator / propulsive current feeds the propulsive windings 2 of all the switching cells. In this case, the windings of all cells, except the first, are connected in series and are connected through a resistance 3 to the generator output /. The forward winding of the first cell is connected to the generator / through resistances 4 and 5, between which triode 6 is connected. In the base circuit of triode 6, resistance 7 is connected to the emitters of triodes 8 of all the cells except the first one. The ferrite cores of all 9 cells of the switch are equipped, in addition to the advancing winding 2, with three more windings: the transfer windings W, the secondary winding // and the winding provide positive feedback 12. In the first cell, instead of the transfer winding 10, the permanently wound magnetic winding 13 is turned on which is determined by the choice of resistance 14. The collector loading of cell triodes is resistance to 15 to 16 with series-connected diodes 17 and 18. There are no resistance 16 and diodes 17 and 18 in the last cell of the switch. The propulsive impulse to the winding 2 of the first cell can come only in the absence of current through the triodes of 8 remaining cells. If a current flows through any triode 8 (with the exception of the first cell triode), then the open triode 6 bypasses through the resistance -5 the forward winding 2 of the first cell,

The control of the junction cells; 1 switch is carried out from control clamps 19 and 20, which either the potential and ,; collector voltage, or ground potential. At the same time, the potentials and control terminals of one cell must be differently varied. The output pulses of the voltage are removed from the outputs 22. Depending on the distribution of potentials at the control terminals 19 and 20 of the switch cells, the number of steps in the cycle can vary from the maximum equal to the number of switching ferrite transistor cells to the minimum when the signals appear on the output of the first switching 5; the cell with the frequency of the clock pulse. Thus, for example, to obtain the maximum number of leads, the ground voltage is applied to the terminals 19 of all cells, and the potential of the source of collector voltage is supplied to terminals 20. Preventing a postplaying impulse to the winding 2 of the first cell is prohibited by shunting the winding with the trunk 6. However, the triode opens after the pulse current rises from any cell (except the first) and the resistance 7. Therefore, for reliable operation of the device, it is desirable to delay the time The winding 2 of the first cell is paired up to the time required for establishing the process of full opening of the triode 6. This ferrite-transistor cell can perform the task shown in FIG. 2. The cell is covered by a strong positive feedback. The pulse at the output of the cell, connected to the resistance o, appears only after the end of the action of the clock pulse, providing the necessary temporary shift.

The described switch can be found in software control systems.

Subject invention

Claims (2)

1. A one-way switch on a ferrite-transistor cell with a clock generator and an automatic installation unit to ensure consistent reception of the pulses at the switch outputs, so that, in order to get any number of leads in repetitive switching cycles and changes in the pitch and control inputs, in the emitter circuit of all cells except the first one, the total resistance is included, and on the magnetic core of the first switching cell there is a bias winding for which Sintered cycling switch supplies a constant offset, and in the collector circuit of each switching cell, except for the last two chains incorporated in parallel, associated with the two switch inputs of the gate. 2. Changeover of the switch according to claim 1, which is different in that, in order to delay the pulse at the output of the first switching cell and simplify circuit setup, the ferrite transistor cell with strong positive feedback is included in the automatic installation node.