RU1812619C - Device for generation of delta-shaped signals - Google Patents

Abstract

Application: the device for generating a triangular signal relates to radio engineering and can be used to determine the frequency, phase, transition characteristics of the differences between radio devices, and to simulate signals used in geophysics, biophysics, medicine, etc. Summary of the invention: the device contains block 1 control unit, the input of which is connected to the bus 4 clock pulses, an analog inverter 6, which outputs are connected to the first and second signal inputs of the first and second key elements 7 and 8, ne vy and second control inputs connected to the signal and the inverted output of the control unit 1, and outputs connected and united by the integrator 9 via the output bus 10 yl .: 2 / (A C

Description

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The invention relates to radio engineering and can be used to determine the frequency, phase, transient characteristics of various radio devices, as well as to simulate signals used in geophysics, biophysics, medicine, etc.

The purpose of the invention is to increase the stability of the amplitude of the output signal and simplify the design.

In FIG. 1 is a block diagram of a device for generating a triangular signal; in FIG. 2 are diagrams illustrating the operation of the device for generating a triangular signal;

The device for generating a triangular signal (fmg. 1) comprises a control unit 1, consisting of a pulse shaper 2 and a digital inverter 3 connected in series (the input of the control unit 1 is connected to the clock bus 4), the frequency-voltage converter 5, the input of which is connected to the signal output of control unit 1, and the output to analog inverter 6, the first key element 7 and the second key element 8, the first signal inputs of which are connected one at a time to the output of the frequency-voltage converter and the input and output analog inverter 6, and the first and second control inputs of the first key element 7. and the second key element 8 are connected to the signal and inverse outputs of the control unit t and to the input of the frequency-voltage converter 5, and the outputs of the keys 7 and 8 simultaneously to the integrator 9, the output of which is connected to the output bus. 10. The output voltage of the triangular shape (Fig. 2d) is taken from the output of the integrator 9 via the output bus 10, the frequency of which is set in accordance with the frequency of the clock pulses supplied to the inputs of the frequency-voltage converter 5, digital inverter 3 of the control unit 1, key elements 7 and 8, and the amplitude is set by adjusting the scale of the conversion of the frequency-voltage converter 5 and is fed to the input of the first key element. .

A device for generating a triangular signal operates as follows, y ....:, ..:.

The pulse former 2 receives a sequence of clock pulses via bus 4 (Fig. 2, a). With a pulse shaper of 2, a signal in the form of a Meander is fed to the input of inverter 3 of control unit 1, from the direct output of which a pulse voltage is supplied to the input of the frequency-voltage converter 5, at the output

whose constant voltage is generated, while its level is directly proportional to the frequency of the input signals and which is fed to the signal input of the first key element 7 and through the analog inverter b to the signal input of the second key element 8. Temporary diagrams (in Fig. 2, d, d) correspond to the voltage supplied to the input of the integrator 9 through

0 key elements 7 and 8. A positive (conditionally) signal is supplied through key element 7, and a signal opposite in sign is transmitted through key element 8 (due to the use of an inverting analog

5 inverters 6). The switching of signals (voltages) at the input of the integrator. 9 is performed according to the signals taken from the direct and inverse outputs of the control unit 1. At the output of the integrator 9, a signal (voltage) of a triangular shape is generated 0 s (Fig. 2d), with the frequency changing input clock pulses does not lead to a change in the amplitude of the triangular voltage, because changing the frequency of the sync5 signals (for example, decreasing) leads to a change (decreasing) of the constant voltage level applied to the signal inputs of the key elements 7 and 8, thereby determining the constant amplitude 7 of the output triangular signal.

A device for generating a triangular signal allows the formation of a voltage with a stable amplitude. The presence of a frequency converter, e.g. 5 having an amplitude-frequency characteristic inversely proportional to the amplitude-frequency characteristic of the integrator, reduces the unevenness of the amplitude-frequency characteristics of the device for forming triangular signals. This eliminates the need for a tracking and compensating element (in the prototype - a comparator). Compared with

5 by the prototype of the claimed device provides stability of the amplitude of the output signal when the frequency of the input clock pulses changes, and at the same time its design is simplified.

Claims (2)

1. A device for generating a triangular signal, comprising a control unit, the input of which is connected to the clock bus by the first and second key elements, the first and second control inputs of which are connected to the signal and inverse outputs of the control unit, and the outputs are combined and connected through the integrator to the output a tire characterized in that, for the purpose of To increase the stability of the amplitude while simplifying it, it is additionally equipped with a voltage frequency converter, the input of which is connected to the direct output of the control unit, the analog input of the first key element, and the output is connected to the control input of the first key element, and the analog inverter, the input of which is connected to Frequency converter output, eg IIII II II II: J; and the first control input of the first key element, and the output to the second control input of the second key element. . . . . .; ..; ../ V .. :: 2. A device for generating a triangular signal according to claim 1, wherein the control unit consists of a pulse shaper and a digital inverter connected in series, + t