SU1758857A1 - Pulse oscillator - Google Patents

Abstract

The invention relates to a pulse technique and can be used in a measurement technique. The purpose of the invention is to improve the accuracy and constancy of the phase relation between the input and output signals of the device and to expand the functionality of the device by forming a pulse frequency at one of its output relative to the frequency of the input signal of the device. The device contains the first and second blocks 1 and 2 of differentiation, multiplier 3, quadrant 4. comparator 5. counting trigger 6, input bus 7, first and second output tires 8 and 9. On output bus 8, a double-frequency pulse signal is generated on the output bus 9 - signal frequency input signal. The goal is achieved by introducing a counting trigger and a quad in the driver. 2 Il.

Description

XI with

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with

The invention relates to a pulse technique and can be used in a measurement technique.

The aim of the invention is to increase the accuracy of the phase ratio between the input and output signals of the device and to expand the functionality of the device by forming a pulse signal at its output at twice the frequency relative to the frequency of the input signal.

FIG. 1 shows a flow chart of a pulse former; in fig. 2 - stress diagrams for his work. The pulse shaper of the sinusoidal signal contains the first and second blocks 1 and 2 of differentiation, multiplier 3, quad 4, comparator 5, counting trigger 6, input bus 7, first and second output tires 8 and 9.

The input bus 7 of the imager is connected to one of the inputs of the multiplier 3 and the input of the first differentiation unit 1, the output of which is connected to the input of the quadrant 4 and the second input of the multiplier 3, the output of which is connected to one of the inputs of the comparator 5, the other input of which is connected to the output of the quadrant 4. and the output of the comparator 5 is connected to the first output bus 8 and the input of the counting trigger 6, the output of which is connected to the second output bus 9.

The device works as follows.

If there is a sinusoidal voltage on the input bus 7 (Fig. 2a).

UBX A sin cot.

The outputs of blocks 1 and 2 of differentiation are respectively signals Ui wAcosЈyt

L) 2 Q A sinflH.

The signal at the output of differentiation unit 1 is quadratic transformed in quad 4

IM (} A2 cos a) t a A2 (

1 + cos 2 al

converting to a harmonic signal of double frequency (figv).

The voltage U2 from the output of the second differentiation unit 2 is multiplied by the multiplier 3 by the input voltage UBX, as a result of which the output of the multiplier 3 also generates a harmonic signal from the doubled frequency (Fig. 2b) out of phase with respect to the voltage U4

Ua A sin o) t a A sin on (i A2 sin2 o t

 (

1 -cos 2 0) 1

)

The voltages Us and LM of frequency 2 wt are compared to each other in amplitude by comparator 5, as a result of which, at the output of comparator 5, pulse pulse voltage Us is formed, the frequency of which is twice the frequency of the input signal UBx (Fig. 2d).

From this signal Us, a counting trigger 6 generates a pulse voltage Ue, whose frequency is equal to the frequency of the input voltage.

15 signal UBX (Fig.2d |.

Thus, at the output buses 8 and 9 of the device, the pulse voltages of the doubled frequency of the input signal and the frequency of the input signal are formed, respectively.

 Since the device uses the same type blocks — a multiplier and a quadrant — to form the compared harmonic signals at the inputs of the comparator,

Claims (1)

 the quality of which can be used the same multiplier with interconnected inputs, the characteristics of harmonic signals at the inputs of the comparator approach each other, which contributes to improving the accuracy of maintaining the phase relationships between the input sinusoidal and output pulse signals of the device, and the formation at its outputs of pulse voltages as input frequency signal and frequency doubled expands the functionality of the driver. The invention of the pulse shaper containing serially connected input 40 45 50 55 the first bus, the first and second differentiation units and the multiplier, with the second input of which is connected an input bus, a comparator whose output is connected to one of the output buses of the device, characterized in that, in order to increase the accuracy of the phase ratio between the input and output signals of the device and expanding the area of use by forming a double frequency pulse signal at its output, a quad and a counting trigger are introduced, the output of the first differentiator through the quad is connected to one from the inputs of the comparator, another input of which is connected to the output of the multiplier, the output of the comparator is connected to another output bus through a counting trigger. FIG. 2