SU920688A1 - Pulse train formation device - Google Patents

Description

The invention relates to a pulse technique and can be used in automatic control devices, as well as in computing devices.

A pulsed electronic counting device with an arbitrary setpoint is known, which generates a signal after the counting of a predetermined multi-digit number, containing a large number of series-connected counters with a fixed setpoint; contains a large number of counters with variable setpoint, each of which is selectively triggered by an output signal with a corresponding Fixed set counter 1.

The disadvantage of this device is the large number of series-connected meters with a fixed setpoint, low reliability of the device and a large number of equipment.

Also known pulse shaper, containing a counter.

The installation inputs of which are connected respectively to the outputs of the setpoint block, the information inputs of which are connected respectively to the outputs of setting the code for the number of pulses of the master block 2.

A disadvantage of the known device is the impossibility of forming a variable number of 10 pulses in this series, since it is impossible to change the capacity of the cycle counter.

The purpose of the invention is to expand the functionality of the device for forming a series of pulses. The goal is achieved by the fact that the pulse shaper, which contains the setpoint block, the master unit, the counter, the setup inputs of which are connected to the outputs of the setpoint unit, the informational inputs of which are connected to the outputs of the target code code of the master unit, it contains a switch, a distribution unit and trigger / and the bit counter outputs are connected to the information inputs of the switch, the control inputs of which are connected to the outputs of the code of the pulse frequency of the master unit, you One switch is connected to the information input of the distribution block whose control input is connected to the counter overflow output, the control input of the master block as well as the C input and K input of a trigger, the inverse output of which is connected to the control input of the setting unit, a clock input The device is connected to the input of the counter and the S-vhr house trigger. The drawing shows the functional diagram of the proposed device. The device for forming a series of impulse 11COV contains a counter 1, a setpoint block 2, a master unit 3, a switch 4, a distribution unit 5, a trigger 6, an input of the device, a series of pulses 1, outputs 8 of the master block 3, and the installation counters 1 are connected respectively to the outputs of the setpoint block 2, the information inputs of which are connected to the outputs of the code for the number of pulses of the master block 3, the outputs of the counter 1 are connected respectively to the information inputs The switch of the control inputs of which are connected to the outputs of the code of the pulse frequency of the master unit 3, the output of the switch 4 is connected to the information input of the distribution unit 5, the control input of which is connected to the overflow output of the counter 1, the control input of the master block 3, as well as With the input and the input of trigger b, the inverse output of which is connected to the control input of setpoint 2, the clock input of the device is connected to the input of counter 1 and S is the input of the trigger 6. The device operates as follows. Input signals to the device 7 are received, on the leading edge of the first pulse of which the trigger b goes into one state, prohibiting the operation of the setpoint unit. Then counter 1 begins to fill with signals arriving at device 7. By filling the counter 1 with the number of pulses corresponding to the selected output of the counter 1 by the switch 4, a pulse appears at the output of mutator 4, which goes to the information Bxo.i of the distribution block 5 and further to the first output of the device. Counter 1 continues to fill with the input signals and, as they pass through the selected countable bit of counter 1, generates 4 pulses at the output of the switch. which through the distribution unit 5 are fed to the first output of the device. The number of pulses that must be received when forming the first series of ig pulses on the first output of the device determines the counter 1, which overflow generates a signal at the output, on the falling edge of which the distribution unit 5 disconnects the first output of the device from the output of the switch 4 and connects the output to it devices. The driver unit 3, at the trailing edge of the signal from the output of counter 1, exposes at the outputs of the task of the pulse number code a second information word, which defines the second pulse train, and the trigger b by. the falling edge of this signal goes to the zero state and, via the setpoint 2 block, sets the additional code to counter I. Thus, the second information word, coming from the output of the pulse number setting of the master unit, through the switch 4, connects the corresponding output of the counter 1, which determines the pulse frequency, to the second output of the device, and the number of pulses in this series of pulses is determined by counter 1, which determines the number of pulses emitted from the selected The counting bit connected to the output of the switch 4. Then, on the leading edge of the next input signal input to the device 7, the trigger b goes into one state, prohibiting the operation of the setting block 2. Then the counter 1 begins to fill with the signals coming in input 7 devices. By filling the counter 1 with the number of pulses corresponding to the selected output of the counter 1 by the switch 4, the output of the switch 4po is a pulse, which through the distribution unit 5 enters the second output of the devices.a. Counter 1 continues to fill in and form at the second output of the device the required number of pulses with a predetermined following frequency over the described cycle. Upon overflow of counter 1, a signal is generated at its output, on the falling edge of which the distribution unit 5 disconnects the second output of the device from the output of the switch 4 and connects to it the third output of the device. The driver unit 3 takes the third information word at the trailing edge of the signal from the output of counter 1 and outputs the number of pulses at the outputs, and the trigger 6 at the trailing edge of this signal goes to the zero state and passes through the block

Claims (1)

Claim A device for generating a series of pulses, comprising a counter, a set point unit, a master unit, and the meter's setting inputs being connected to the outputs of the code for setting the number of pulses of the master unit, characterized in that, in order to expand the functionality by forming a variable number of pulses in each series , it contains a switch, a distribution block, and a trigger, with the outputs of the bits of the counter connected to the information inputs of the switch, the control inputs of which are connected to the outputs of the code the pulse trains of the master unit, the output of the switch is connected to the information input of the distribution unit, the control input of which is connected to the output of the counter overflow, the control input of the master unit, as well as the '5 C-input and K-input of the trigger, the inverse output of which is connected to the control input unit settings, the clock input of the device is connected to the input of the counter and the S-input trigger 20 hera.