SU746879A1 - Pulser - Google Patents

Description

The invention relates to automation and computing, can be used in the construction of computers synchronization devices. Known pulse generator, containing two elements OR NOT, three delay lines ij. The known pulse generator produces a continuous series of pulses whose interrupt phases are asynchronous with respect to the signals of the beginning and end of the pulse series. A disadvantage of the known pulse generator is that it does not form a series of pulses with programmatically variable duration and, accordingly, the number of pulses in a series. The whole invention is the enhancement of the functionality of a pulse generator. The goal is achieved by the fact that a pulse generator containing OR-NOT elements, a delay line, the output of the perge element OR-NOT is connected to the input of the first delay line and to the first input of the second OR-element, the output of which is connected to the first input of the first element OR-NOT, and the outputs of each element OR-NOT are connected via the second and third delay lines respectively to the second inputs of the elements OR-NOT, the pulse counter, the parameter register and the trigger are entered; one input of which is connected to the puka bus, the second input is connected to the output of the pulse counter, and the trigger output is connected to the third input of the first OR-NOT element and the second input of the third delay line, the parameter register input is connected to the initial condition bus, and the output is connected from the pulse counter inputs, the other input of which is connected to the output of the first element OR NOT. FIG. 1 is a block diagram of a pulse generator in FIG. 2 is a timing diagram explaining his work; Goyur pulse pulse contains emabytes YLE-NOT 1 and 2, delay lines 3-5, trigger 6, parameter register 7, pulse counter 8, start bus 9, initial conditions bus 10, vertical pulse 11. The pulse generator works in a special way. Before the signal arrives at the start-up bus 9, trigger 6 is in zero position (bus 12, fig. 2). The negative potential from the output of the trigger 6 locks element 1 and, through line 4, the delay element OR NOT 2. There are no pulse series on the output pulse 11 of the pulse generator, the pulse generator is in standby. The impulse on the start-up bus overturns the trigger 6 into a single position; W zero output trigger 6 appears positive potential. At the start of an OR-HE element, lj ipn & a negative potential, and an OR-HE 2 element during a time delay line delay will be covered by a negative potential of trigger b, i.e. at the output of element 2, a positive potential remains. The potentials at the outputs of the YLE-NOT 1 and 2 elements in a static are mutually inverted, since the potential from the output of the element OR-NOT 1 is fed to the input of the element ILY-NOT 2, and the potential from the output of the element .OR-NOT 2 to the input of the ale. COPE OR NOT 1. To describe the operation of the I / M pulses generator, we accept the condition; the delay time of the line 3 delays is less than the time 5 of the delay of the line 4 delays {in principle, it is possible and vice versa, and it is equal to Tbo Delays). ..; ; -;, ;; . The negative potential at the output of the YLY-HE 1 epymete persists for a time from t to. equal to 1 time holding line 3 delays. The output signal at the output of an OR-NOT 1 element of a polluge potential at the output of an YLI-NOT element 2 positive potential is held by a negative potential at the output of the delay line 4 for a time from tj to tj. For a time from tj to t equal to the delay time of the 4th delay line, the output potential of the OR-NOT 2 element remains at a negative potential, which maintains a positive potential at the output of the ILY-NE element 1. How tol1d; about on exit

746879 of an OR-NOT 2 element on the Vits from the output of the delay line 4, at the instant of time -t a negative potential, a positive potential is established at the output of the OR-NOT 2 element. At the output of the element OR NOT 1, a negative potential is established, the pulse generator is returned to the initial state of the regenerative process, which starts cycling in it. Using the delay line 5, a narrow pulse from the output of the OR-NOT 1 element can be arbitrarily shifted (and accurately centered) with respect to both positive and negative wide differences from the output of the OR-NOT 2 element. Counter 8 imgles reads the pulse from the output of the OR element - NOT 1, and reacts to the falling edge of the indicated pulses. The initial state of the counter 8 is determined by the code recorded over the initial condition bus 10 (programmatically or by the operator) in the parameter register 7. When the counter 8 counts to a predetermined state, for example, to units in all bits, an impulse is formed on its code that sets trigger 6 to the initial zero state. Trigger 6 blocks the formation of pulsed series on the input of the elements OR NOT 1 and 2 before the impulse arrives through an arbitrary time interval on the bus 9 bani .. The length of the impulse series (the number of impulses in a series at 12-17) is determined by the time during which the counter 8 counts the pulses from the initial state, measured by the register of 7 pa; parameter, to the selected value. If a negative potential is applied to the input of trigger 6, then the pulse pulse generator will operate in a continuous mode for the duration of this potential re-i. The use of new elements — a trigger, a parameter register, a pulse counter — favorably distinguishes this generator of pulses from the known one, since, along with the continuous mode, the pulse generator operates in the standby mode, forming a series of pulses with a programmable variable duration and, accordingly, the number of IM pulses a series, the phase of the medium front of the first pulse in serge is rigidly connected with the pulse of the start, and the phase of the trailing edge of the last is

Its pulse in cefffitH is rigidly associated with the stop signal, which determines the automatic synchronism of the pulses in series with the specified control signals for start and stop.

Formula 3 and Breasts

Pulse generator auth.St. No. 560325, characterized in that, in order to expand the power capability, the pulse counter, the parameter register and the trigger, one input of which is connected to the bus, are entered into it

start, the second input is connected to the pulse counter, and the trigger output is connected to the third input of the first OR-NOT element and the second input of the third delay line, the parameter register input is connected to the initial bus, and the output is connected to one of the counter inputs pulses, another input is connected to the output of the first element OR NOT.

Sources of information taken into account in the examination

1. USSR author's certificate No. 560325, cl. H 03 K G / 66, 11.05.75;

/BUT

15

6

-

/ 2

Lj

//

/

if

f3

.6 -

1

Claims (1)

Claim Pulse generator for auto No. 560325, characterized in that, in order to expand the functionality, a pulse counter, a parameter register and a trigger are introduced into it, one input of which is connected to the start bus, the second input is connected to the output of the pulse counter, and the trigger output is connected to the third the input of the first element AND AND NOT and the second input of the third delay line, while the input of the parameter register is connected to the initial conditions bus, and the output is connected to one of the inputs of the pulse counter, the other input of which is connected to the output of the first element OR-NOT.