SU879774A1 - Device for normalizing pulses - Google Patents

Description

The invention relates to a pulse technique and is intended to be normalized by the duration of the pulses arriving at the inputs of the device. It is known a device that provides pulse rationing by duration, containing shapers of discharge pulses, the input of each of which is connected to the corresponding input bus, and the output to the input of the communication element, as well as a control key, the OR element, the time setting element and the A single key, the output of which is connected to the common bus 1. A disadvantage of the known device is the impossibility of pulse rationing by duration in each channel with a given priority, which would ensure the passage of the normalized pulse only one output in the presence of pulses on the inputs MULTI FIR device. In order to increase the reliability and expand the functionality of the pulse normalizer, which contains shaper pulse generators, the input of each of which is connected to the corresponding input bus, and the output to the input of the communication element, as well as the control key, OR, the time setting element and the bit key, the output of which is connected to the common bus, additional controllable keys, a priority block, and timing chains are entered, and the information input of each control key is combined with the input corresponding to favoring shaper discharge pulses, a control input through a corresponding time defining a chain connected to a respective output unit and priority input OR gate whose output is connected to the input of the discharge switch; the inputs of the priority block are connected to the outputs of the controlled keys, and the output of the communication element is connected to the input of the time of the master element, the output of which is connected to another input of the bit switch. The drawing shows a structural electrical circuit of a pulse rating device. The device contains the time setting element 1, which includes a series circuit of resistor 2 and capacitor 3, in parallel with which switch 4 and the input of threshold element 5 are connected. The output of threshold element 5 is connected to the input of the discharge element

key b. The output of the key 4 is connected to the output of the communication element 7, for example, an OR element, the outputs of which are connected through the output drivers 8-10 bit impulses to the input buses 11 - 13. The output buses 14-16 are connected to the outputs of the priority block 17, the inputs of which controllable keys 18-20 are connected to I corresponding input buses

11-13.Times, the driver circuits consist of a capacitor 21, a resistor 22 and a diode 23, a capacitor 24, a resistor 25, a diode 26 and a capacitor 27, a resistor 28, a diode 29. The diodes 23,26 29 are connected respectively to the connection points of the controlled inputs keys 18,19,20 with capacitors 21 24,27. The points of connection of capacitors 21, 24, 27 with resistors 22, 25, 28 are connected to the inputs of the element OR 30, the output of which is connected to the common bus via the bit 6.

The device works as follows.

In the initial state, the capacitor 3, the time of the charging element 1 is charged through the resistor 2 to the voltage corresponding to the triggering of the threshold element 5. At the same time, the voltage from its output goes to the input of the dongle 6, and the key is opened. The priority block 17 provides for non-passing of pulses to the device’s output from tires 12 and 13 when a pulse arrives at bus 11 and from bus 13 when a pulse arrives at bus 12. When arriving at bus 11, an impulse of duration t hc, hd is the normalization time, driver 8 forms a short-term pulse coinciding in time with the leading front of the input pulse. The pulse through the communication element 7 is fed to the input of the key 4, which, transitioning to the open state, discharges the capacitor 3. In this case, the threshold element 5 returns to the initial state, which leads to the disappearance of the voltage at its output and the input of the discharge key 6, as a result of which it enters a closed state.

The voltage applied to bus 11 passes through the closed control key 18 and the priority block to bus 14. After opening the discharge switch 6, the capacitor 27 is charged through a resistor 28 and a diode 29 on the voltage of the pulse applied to bus 14. When the voltage on the capacitor 3 after-time -fc reaches the threshold value, the voltage from the output of the threshold element 5 enters the input of the discharge switch 6, which goes into the open state, and the capacitor 27, razryv, forms at the input of the controlled key 18 negative momentum, To translate it into a conductive closed

a condition whereby the voltage disappears on the bus 14. If, within the time tf-i, since a pulse arrives on bus 11, a pulse arrives on bus 12 or 13, then priority block 17 will not pass it on bus 15 or 16 due to the presence of a pulse on bus 11. However, with this driver 9 or 10 will generate a pulse, which through the communication element 7 will go to the input of the key 4, opening for the duration of the pulse, which will discharge the capacitor 3, after which its charge will begin, ending after the time tm by closing the discharge key 6 and opening the controlled key key 18.

Thus, the arrival of a pulse to any input of lower priority during the formation of a pulse of higher priority only increases in duration the pulse acting on the input of higher priority. When a pulse arrives only on the bus 13, i.e. a lower priority input, the pulse passes to the bus 16, and at the same time the driver 10 generates a pulse which, acting on the key 4, discharges the capacitor 3 the time of the setting element 1, which starts counting time If within this time a pulse arrives at the higher priority input, for example, bus 12, it will pass to bus 15, and on bus 16 the pulse will disappear due to the given priority of priority block 17. At the same time, the driver 9 generates a pulse, which acts on the input time of the driver element 1, which starts counting the time -fcj, after which a voltage goes to the input of the discharge key 6, and it opens, discharging the capacitor 24 to the input of the control key 19, which opens, by stopping the pulse on bus 15. This makes it possible, despite the presence of voltage on top-priority bus 12, to ensure that the pulse passes to bus 16 from bus 13 of lower priority when it arrives. In this way, the normalization of pulses is ensured in compliance with the specified priority by channels. In this case, only one time can be used to set the element 1, regardless of the number of channels of the device.

Diodes 23, 26, 29 can be replaced by resistors, the resistance of which should be less than the resistance of resistors 22, 25, 28, or eliminated in the presence of a galvanic circuit at the input of control switches 18–20.

Claims (1)

Invention Formula Pulse rationing device containing discharge drivers