SU525236A1 - Pulse linear shaper - Google Patents

Claims (2)

(54) LINEAR PULSE FORMER input of the zero meter installation - to the first output of the zero-organ, the second and the output of which is connected to the first inputs of the element of the pret and the second element And, the second input of which is connected to the input of the comparator, and the output to the second inputs of the phase separator device and to the first input of the third element K, to the second input of which is connected through a threshold device the output of a step voltage driver, and the output of the third element I is connected to the input of a single vibrator, the output of which is connected to the second input of the OR element, and the output of the OR element - with the second inputs of the triggers. To increase the noise immunity, the proposed shaper contains a frequency divider, the fourth and fifth And elements and the third trigger, the first input of the second is connected to the output of the second element And, and the output with the first inputs of the fourth and fifth And elements, the second of which are connected respectively to the outputs of the divider frequency and pulse reset generator, and the outputs - to the second inputs of the phase separation device and to the first input of the frequency divider, the second input of which, as well as the second input of the third trigger are connected to the output of the element SLT. Fig, 1 is given a structural scheme of the described shaper; in fig. 2 is a time diagram illustrating its principle of operation; in fig. 3 — realizable actuator control characteristic and phase diagram. The shaper contains an amplitude modulator 1, to the input of which is connected a synchronizing signal of the reference generator 2, a balanced diode-regenerative comparator 3, to the input T of setting the threshold of which the output of the step voltage shaper 4 is connected, the shaper of reset pulses, phase separator | device 6, mode switch 7 , by .... “A,. horn device 8), one-shot 9 and two trigger 1O and 11. Shaper 4 is made on counter 12, the counting input +1 of which: output of comparator 3 is connected, and code-analogue converter 13. The shaper 5 is designed as a counter of reference pulses on two triggers 14 and 15, the inputs R of the zero setting are also connected to the output of the comparator 3 F Separate above the device 6 contains two elements 16 and 17, the first inputs of which are connected to the antiphase outputs of the generator 2. Outputs phase switch of the switch to the inputs S of the installation of the state 1 of the flip-flops 10 and 11, to the powerful outputs of which connect-; here are the actuators / systems. In addition, the driver contains a reversible counter 18, to the input of the subtraction; The -1 of which is connected to the output of the comparator 3, to the inputs of the installation of the code O - the outputs of the counter 12, and to the synchronization input C the output of the racer 5. The output of the reversible-j counter is connected to the input of the zero-organ 18 (zero code matching circuit). The logical block also contains the element Ban 20, three elements AND 21-23 and: element OR 24, and in the noise-proof mode (two more elements AND 25 and 26, frequency divider 27 and trigger 28, P inputs of the O state, S inputs state settings, C - synchronization inputs, signs denote dynamic inputs equivalent to signal differentiation, O signs denote inverse outputs. The former works as follows. At an input signal whose value exceeds the initial threshold of the comparator 3, the output pulses one for the period of the onoyv generator 2 and synchronous, depending on the polarity of the input signal, with the leading or trailing edge of the voltage of the reference generator. The output pulses of the comparator 3 are fed to the inputs for setting zero triggers of the reset pulses 5, as well as to the inputs 12 , the reversible counter 18 and element 22, the input T of the setting of the threshold for the comparator 3 receives a signal from the output: l the analogous code 13, which has a stepped form. While the total signal of the initial setting of the threshold of the comparator 3 and coming from the converter 13 is less than the input signal of the device, the inputs of the driver 5 n are received sequentially. the pulses of the comparator 3 and the reference oscillator 2, under the action of which the trigger 14 is switched, and the trigger 15 remains in the zero position. As the number of pulses of the comparator 3 increases, the code on the counter 12 increases, the voltage at the output of the converter 13, and, consequently, the threshold of the comparator. After a certain number of own pulses, the comparator 3 is locked to the input of the imager 5, the arrival of two pulses of the reference generator 2 is applied and the trigger 15 switches to a state, i.e. a reset pulse is generated, by which the counter code 12 is rewritten into the reversible counter 16, At the same time, in the inverse output of the zero of the body 19, a signal is generated which, by the dynamic input 1B of the counter 12, sets a zero code on it and, therefore, a zero voltage at the output of the converter 13 and the initial threshold | comparator 3 "The comparator 3 starts generating pulses again, and then the process repeats. Thus, with a constant input signal at the output of the converter 13, a step shaped voltage is formed, the number of steps of which is equal to the number of pulses of the comparator 3 between the reset pulses, and the period in the number of these rae steps is greater than the period of the reference voltage of the generator 2. With an atom, just ctBeHHO, before the reset pulse, a zero code is formed on the reversing counter 18, since it is filled into it at the preceding period the number of impulses of the Comparati Topa 3 is stored at a subsequent period {de and is fully subtracted. No signals to control the executive bodies of the 1 | MI system in this case form | c. Indeed, the signal at the output of element 22, which, after the subsequent processing, controls the activation of the control bodies, is not generated, since there is no coincidence of the signals of the comparator 3 and zero organ 19, since the comparator with the zero code of the reversible counter and {non-changing input signal is locked. The signal 1 on the element 21, which controls the switching on of the executive bodies, is not generated, since there is no signal on the inverse: output I of the organ 19, which occurs when the code of the revision counter 18 differs from {zero, and the reset pulse . rivcTb at the time tg of the input signal (see Fig. 2, a) begins to increase from the value corresponding to one:, the comparator 3 pulse (see Fig. 2, c) between them: reset pulses (see, Fig. 2, e), the first: of which also the time & t (j). At the first pulse of the comparator E, at the time t, the first step is formed at the output of the converter 13 (see FIG. 2, d), the zero code of the reversible counter 18 is set and the output: the zero-body 19 produces a signal, ( the input element AND 22 is received. At the time point, a second pulse is formed at the output of comparator 3, which passes through elements 22 and 23, since the second input of the latter is present; the signal from the inverse output of the threshold device 8 (see FIG. 2, g), the triggering device with a larger signal The generators 13. The output signal of the element 22 also arrives at the input of the phase-separation device 6 connected to the antiphase; the output of the reference oscillator 2 (see fig. 2, b), and the output signal of the element 23- starts with the delay TQ one-one vibrator 9 After the selection by phase, the control pulse, for example, from the output of the element AND 16 (see, fig. 2, c) switches the trigger 10 to the state, and the latter switches on the control elements of the system, whose operation creates an impact (see fig. 2, c), tend to reduce the input signal. Simultaneously, a second step is formed at the output of the converter 13, | behind- the comparator 3. Therefore, at the time-ti, the comparator pulse is not formed, at (input of the imager; SL a second pulse arrives (the reference oscillator and the trigger 15 switch to Ij t, e. 11) is normalized a reset pulse, which, acting on input C of the reversing counter 18, rewrites counter code 12 in it, in this case corresponding to the two pulses of the comparator 3, and enters the dynamic input of the And 21 element. does not pass, Like the second input of the element I 21. A zero signal. After writing the code into the reversible counter 18 on the inverse output of the coincidence circuit 19, a signal is generated which, acting on the dynamic input of the counter 12, sets it and the inverter 13 to the zero state. Ovibrator 9 (see Fig. 2, i) is formed with a delay To relative to time tj and, passing through the element OR 24, sets the triggers Yu and 11 to the zero state, disconnecting the system actuators. Since the output of the converter 13 produces a zero signal, the comparator J3 / at time i: / generates a pulse that sets the triggers 14 and 15 to the zero state and the output signal of the former 5, If the input signal continues to increase as a result of the influence of the system executives, then the time point tg again includes the execution ganes for the time T. The latter depends on the operation of the element I 23, controlled by the threshold device 8 and triggered in this case with the voltage of the converter 13 containing not less than e three steps. At the moment of time tg and after the continued increase of the input signal, the fourth one is formed, counting from the moment t § impulse of the comparator 3, Odaako even before this threshold I device 8 is triggered, blocking the operation of the I 23 element and, consequently, the start of the single-vibrator. In this case, the actuators switch to the operation mode with the lead zone and are turned on until the rate of change of the input signal changes; the sign and the negative increment of the number of pulses of the comparator 3 does not appear during the interval of the following pulses. At time t, on the reversible counter 18 (one more pulse remains, and at the inverse zero output of the organ 18 and the input | of the AND 21 element is signal I. Therefore, the reset pulse passes through the AND 21 element of the OR element 24 and turns off the triggers 10 and 11 and the executive bodies of the system. Thus, when the input signal is less than a certain cycle, specified by the setting of threshold i of device 8, the system operates in a positional mode. The pulse duration is determined with the parameters of a single-selector 8, and they are formed only with an increase in the input signal. When the input signal is larger than the same magnitude, the device forms a multi-threshold, forward-looking characteristic of the control with executive signals. The output of the zero-body 19 is connected through the element of the Ban 20 to the input 1 of the installation of the zero reversible counter 18; in order to eliminate the effect of the comparator pulses on the reversible counter with its zero code. The element 20 is blocked by a reset pulse to ensure the rewriting of counter code 12, to increase the noise immunity ngp, mode switch 7 is turned on. In this case, the signal for switching on actuators at the output of element K 22 switches trigger 28 to the state of elements I 25 to 26 and to the input of the divider 27 frequency receive a reset pulse. If a current K periods, where K is the division factor of divider 27, confirms the fact of an increase in the input signal, i.e., at the output of the OR element 24, the switching-off pulses of the actuators, simultaneously setting the divider 27 to zero, are formed, then its output signal passes through the element And 26 and includes the executive bodies of the system. If during the indicated timeframe at least one signal turns off the actuators, then divider 27 and trigger 28 translate the signal into the zero state. Thus, false gains of the input signal in this case do not lead to; the false inclusion of executive bodies and the efficiency of the system at the expense of external power by the executive bodies and the resource increases. Fig. 3 shows a control signal characteristic with a lead zone and three positional pulses and a phase diagram. Let the input signal, at the initial point, be negative and change with the speed id. Since the executive bodies and systems do not turn on when the input signal is absolutely reduced, their first activation occurs after the polarity of the input signal i changes and reaches the value C equal to the first position i threshold. At this point, the actuators are switched on for the time of the TC, due to; whereby the rate of change of the signal is reduced by an amount. The same decrease. speeds occur at points 2 and 5. If the initial speed value is large, the input signal continues to increase and, at point Cj, the actuators are switched on again and off at the nearest leading threshold ,. In the case under consideration, this threshold is equal to the value of q, since the influence of the executive bodies was not enough. accurate to calm the system in the advanced section) ... n After switching off the actuators at point o, the input signal decreases with a constant speed (, passes through zero, becomes negative again, and at points (. fs turn on; actuators for time TQ which, as earlier, reduces the absolute value of the speed on A4, oV of each of the specified points. At the point-e, the executive bodies are activated according to their characteristics with the advanced zone and switched off at the point -t | g, i.e. the input signal / not beyond one signal starts to change, but at a speed (, passes through zero, and at points |, i,} 2 4h the actuators turn on for the time TQ. As a result of the last impulse, the speed changes sign and the system goes: minimum speeds and input; a signal varying in the range from (to - "-, i.e., the first positional pulses. 9 Claim 1, A linear pulse pulse generator comprising a series-connected modulator, comparator and a step voltage driver, the output of which connected to the second input of the comparator, the reference frequency generator, the outputs of which are connected to the first inputs of the phase separation device, the modulator and the reset pulse generator, the second input of which is connected to the output of the comparator, and the outputs of the phase separation device to the first inputs of two triggers, characterized in that in order to increase the speed and accuracy of the driver, it contains a null-organ, a prohibition element, an OR element, three AND elements, a threshold device, and a fiber. with . .g- t / X-J-, ™, „„ ,, „r, the torus and the reversible counter, the outputs of which are connected to the corresponding inputs of the null organ, the code inputs to the corresponding counts of the counter, the inputs of the subtraction, zero setting and control of the code record respectively, to the outputs of the comparator, the Inhibit element and the reset pulse generator, which is also connected to the second input of the Ban element and the first input of the first AND element whose output is connected to the first input of the OR element, and its second input, as well as the installation input 52,236 zero counters to first exit null org on, the second output of which is connected to the first inputs of the Ban element and the second element And, the second input of which is connected to the input of the comparator, and the output to the second inputs of the phase separator and to the first input of the third element And, to the second input of which is connected through a threshold device the step voltage driver, and the output of the third AND element is connected to the input of the one-shot, the output of which is connected to the second input of the OR element, and the output of the OR element to the second inputs of the trigger. 2. The former according to claim 1, characterized in that, in order to interfere with the noise immunity, it contains a divider, frequencies, the fourth and fifth elements And, and a third trigger, the first input of which is connected to the output of the second element And, and the output with the first The fourth and fifth elements And, repeat the inputs of which are connected respectively to the outputs of the frequency divider and the reset pulse shaper, and the outputs to the second inputs of the phase separator and to the first input of the frequency divider, the second input of which, as well as the second input of the third tr ggera connected to the output of the OR gate, but S jigsaw mgs eleven Well I I I