SU533913A1 - Extreme controller to control the bandpass filter - Google Patents

Description

the second input is the output of the reverse-selector and the output of the extremum memory unit, and the output is with the first input of the first matching block, the second input of which is connected to the output of the second matching unit, and the output with the first input of the reverse Ilgrager, the first input of the second block coincidence with the first generator of pulses, the second input with the third input of the extremum memory unit and the second input of the integrator, the terminal of the third co-ownership unit is connected with the second pulse generator, the second input with the fourth the output of the extremum memory unit and the third reversing input of the integrator's nose, and the output with the fourth input of the reversible integrator, the fifth input of which is combined with the second input of the unit to remember the extremum.

Ma drawing. Represents a block diagram of an extremal controller.

The extreme controller contains a bandpass filter /, amplifier 2, extremum memory unit 3, threshold device 4, reverse unit 5, actuator 6, standby: multivibrator 7, program device 8, co-controller 9, reversible integrator 10, first , the second and third blocks match 11-13, the first and second generators I1m; Bursa 14, 15.

The extreme bandpass filter control works as follows.

The input signal is fed into the bandwidth lt | p /, which has a single frequency trim. The signal from the output of the bandpass ftap is fed to the VHS amplifier 2, which provides for the detection of the signal to obtain its envelope and amplification of the received signal. The signal from the output of the actuator 2 directly and through the extremum booster unit 3 is fed to the corresponding inputs of the threshold device 4. The threshold device is triggered at a certain difference between the current and extreme envelope values. The output signal of the threshold device 4 goes to the blog: reverse 5. The block of reverse 5 switches the actuator 6 to provide the reverse of the band-pass filter tp. Tuner, on the extreme end. In addition, the signal of the reverse unit is exhausted to excite the standby multivibrator 7, the output signal of which is used to turn on the reverse inverter of the extremum memory unit in the subtracted mode. Unit 8 controls the reverse unit 5 and the extremum memory unit 3 according to a rigid program.

In the proposed extreme.m. controller, a constant value of the blockage of the MGTani 31lST bump is suggested to be increased to ROZMo K io. Maximum value. The upper limit of the constant time is determined by the rate of change of the envelope, the inertia

the memory unit must accumulate an adjustable value, in all cases with a higher rate of change of the adjustable value.

The extremum memory unit consists of a comparator, a reversible integrator, a nerve, a second and a third unit of a combination, a first and a second pulse generator. BLO.K the extreme memory is inertial, and the time constant with increasing envelope is greater than the time constant when decreasing. This is achieved by the corresponding frequency of the pulse generator 14.

Until the reverse, the block of extremum memorization works in the mode of addition of pulses in the integrator when they are received from the first generator of AND | mpulsov 14. At the time of the reverse, the waiting multivibrator 7 switches the reverse integrator 10 into the subtraction mode, and the integrator input is connected to the second pulse generator 15. the stored extremal value of the controlled variable is reset to a certain level. After that, the amplified multivibrator returns to the initial state, the reversible integrator is switched back to the addition mode to store the signal envelope.

Form. M l l a 1 3 about b ete n i

Claims (2)

1. An extreme controller for controlling a bandpass filter containing an amplifier, the output of which is directly and through the memory unit 5. The extremum is connected to the corresponding inputs of the threshold device, the output of which is connected to the control through an serially connected reversing unit; and programm device, iKOTOpOTO output is connected to the second inputs of the reverse unit and the extremum memory unit, characterized in that, in order to increase the Quality of regulation and interference The protection of the extremal controller has a standby multivibrator installed, the input of which is connected to the output of the reverse unit, and the outputs respectively with the third and quarter inputs of the extremum memory unit. 2. The extreme regulator according to claim 1, characterized in that the extremum reminder unit comprises an omprator, a reversible integrator, a first, second and third coincidence unit and a first and second pulse generator, the first input of the comparator being connected to the first input of the extremum memory unit, the second input is with the output of the reversible integrator and the output of the extremum memory unit, and the output is with the first input of the first coincidence unit, the second input of which is connected to the output of the second cosmpp unit, and the output with the first the input of the reversing integrator, the first input of the second matching unit is connected to the first generator of ampuls, the second input to the third input of the extremum memory unit and the second input of the reverse integrator, the first input of the third matching unit is connected to the second pulse generator, the second input to the fourth input the extremum memory unit and with the third input of the reverse integrator, and the output with the fourth, the input of the reverse integrator, the fifth the input of which is connected to the second input of the extremum memory unit. Sources of information taken into account in the examination: 1. Self-tuning systems. Handbook edited by P. I. Chinaev. “Naukova Dumka, Kiev, 1969, p. 34-44. 2.L. M. Leberzon et al. Extreme Regulation Systems. M., Energie, 1965, p. 126 (prototype). I  I / j : tj „..