SU1490701A1 - Pulse phase discriminator - Google Patents

Abstract

The invention relates to a pulse technique and can be used to isolate, on the basis of a temporal advance, the pulse signals arriving at the two inputs of the device. The purpose of the invention is to expand the functionality of the device by separating pulses at one of the two loads on the basis of advance time. The device contains the first and second controlled keys 1 and 2, the first and second elements 3 and 4 of the current limit. To achieve this goal, the communication element 9 and the new functional connections are introduced into the device. 1 il.

Description

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The invention relates to a pulse technique and can be used to select on the basis of a temporal advance of the pulse signals fed to the two inputs of the device.

The purpose of the invention is to expand the functionality of the device by separating the pulses at one of the two loads on the basis of advance time.

The drawing shows a diagram of the selector pulses in phase.

The pulse selector in phase contains the first 1 and second 2 control keys connected between the common bus and the first voltages, respectively, of the first second 4 current limit elements, the control inputs of the first 1 and second 2 control keys are connected to the inputs of the second 2, respectively. and the first 1 controllable keys, as well as two items 5 and 6 (or 7 and 8) of the load, connected parallel (sequentially) with the key elements 1 and 2, the Element 9 of the connection is connected between the second terminals of the first 3 and the second 4 current limiting elements that oed Ina respectively with the first 10 and second 11 inputs of the logic element.

Controlled switches 1 and 2 can be made in the form of MOS or bipolar transistors and other elements in discrete or integral design. Elements 3 and 4 of the current limit can be implemented as resistors or using MOP or bipolar transistors. The elements 7 and 8 of the load can be made in the form of low-resistance elements: the input circuits of a bipolar transistor (ba.za – emitter), light-emitting p - n-junctions, and other elements. The elements 5 and 6 of the load can be implemented as elements with a high input resistance (for example, the control circuit of the JUP transistor of the subsequent logic element). Communication element 9 may be implemented as a resistor or other element having an active character.

The selector works as follows.

When pulsed signals arrive at inputs 10 and 11, which partially coincide with each other in advance times, any one of

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Recorded Pulse Signals. If the pulse signal at the input 10 is advanced, then at the moment of its arrival under the voltage, the load element 5 and the input of the key 2, which opens and shunts the element 6, as well as the input of the control key 1, prevent the unlocking of the latter. After the pulse signal arrives at the input 11, the state of the controlled keys does not change. After the end of the pulse signal input to input 10, the state of the controllable keys also does not change, since the control key 2 remains open due to the input of the voltage control from the input 11 through the elements 9 and 3 to its input. The signal at input 11 is pulsed; the signal at load 5 also terminates. If the sources of pulse signals entering inputs 10 and 11 have a high resistance at the moment of pause, then the coupling element 9 may have a very low resistance, two to three orders of magnitude less than the current limiting elements 3 and 4.

If the input signal 11 is leading, then the logic element operates in the same way, but the pulse signal is applied to the load element 6 or 7.

Another option for switching load elements in series with controllable switches 1 and 2 is to turn on load elements in series with current limiting elements 3 and 4, or instead of them, when load elements perform the functions of current limiting elements. In this case, with the advance signal at input 10, the control key 2 is open and the output pulse is on element 4.

Claims (1)

Invention Formula A pulse selector in phase containing the first and second controlled keys connected between the common bus and the first terminals of the first and second current limiting elements, respectively, the control inputs of the first and second controlled keys are connected to the inputs of the second and first controlled keys, respectively, differing in that in order to extend the functionality by allocating 51A907P1 I coincide tsich in time of impulses us of the first and second - elements oi from one of two exits on a current, which are connected. correspondence, a communication element is introduced, respectively with the first and second rokhoda which is included between the second output-selector.