RU1800591C - Multiphase pulse generator - Google Patents

Abstract

The invention relates to a pulse technique and can be used in devices at the outputs of which it is possible to obtain the required time-separated required code sequences of signals of a given shape. The device contains N generators 1.1, 1.2 ... 1.N, N multiplexers 2.1.2.2 ... 2.N, N detectors 3.1.3.2 ... 3.N zero, trigger 4, pass block 5, N code buses 6.1 . 6.2 ... 6.N, N of output buses 7.1, 7.2 ... 7.N, input bus 8. 2 ill.

Description

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The invention relates to a pulse technique and can be used in devices at the outputs of which it is possible to obtain the required code sequences of a given shape spaced in time,

The purpose of the invention is to expand the scope by controlling the number of output pulses in a code sequence.

In FIG. 1 shows an electrical functional diagram of a device; Fig. 2 is an exemplary embodiment of a pass block.

The multiphase pulse generator contains N generators 1.1, 1.2 ... 1.N, N multiplexers 2.1, 2.2 ... 2.N, N detectors 3.1, 3.2 ... 3.N zero, trigger 4, block 5 transmission and the inputs of each of the N detectors 3.1, 3.2 ... 3.N zero are connected to the corresponding code buses 6.1, 6.2 ... 6.N and to the corresponding information inputs of the corresponding generators 1.1, 1.2 ... 1.N, the first input each of the N multiplexers 2.1, 2.2 ,,. 2.N is connected to the output of the corresponding generator 1.1, 1.2 ... 1.N, the second input of each of the multiplexers 2.2, 2.3 ... 2.N is connected from the second to the Nth the output of the previous cartoon plexor with trigger input of a respective oscillator 1.2, 1.3 ... and corresponding 1.N You are a bus Khodnev 7.1, 7.2 ... 7.N. and the address input of each of the N multiplexers 2.1, 2.2 ... 2.N is connected to the output of the corresponding first multiplexer 2.1, with the R-input of trigger 4, the R-input of which is connected to the output of the last multiplexer 2.N, the output is with the input setting the initial conditions of the first generator 1.1 and with the first input of the transmission unit 5, the second input of which is connected to the input bus 8, the output - with the second input of the first multiplexer 2.1.

The pass block 5 (FIG. 2) contains a series-connected inverter, an OR-NOT element and a single-vibrator, the output of which is connected to the output of the unit, the second input of the OR-NOT-element being connected to the first input of the unit, the second input of which is connected to the input of the inventor and is intended to block the passage of external synchronizing signals arriving at the input bus of the multiphase pulse generator during operation of the generators 1.2, 1.3 ... 1.N.

Multiphase pulse generator operates as follows.

The first oscillator 1.1, operating in self-oscillating mode, generates a sequence of pulses, the repetition period of which is determined by the value of the code on the code bus 6.1 and set

delay time values (adjacent intervals) of all subsequent (2 ... N) generators 1. When 6.1 signals are installed on the first code bus, for which the pulse repetition period of the first generator 1.1. is not equal to zero, the signal at the output of the first detector 3.1, zero is zero, and the output pulses of the first generator 1.1 are fed through the first multiplexer 2.1 to the first bus of the device, the synchronization input of the second generator 1.2, and the installation input to trigger unit 4, which generates an output signal setting initial conditions in the first generator 1.1 and prohibiting its operation in regenerative (self-oscillating); mode, as well as blocking the passage of external clock signals through the pass block 5.

On the front of the signal coming from the 7.1 bus to the synchronization input of the second generator 2.1, the second generator 1.2 starts up, which, unlike the first generator 1.1, already works in the mode of generating delayed pulses: after a time specified by the second code bus 6.2, an output signal is generated at the output of this generator, which through the second multiplexer 2.2 (the adjacent interval value specified by code bus 6 is not equal to zero) is fed to the second output bus of the device and the synchronization input of the third generator 1. 3. When signals are installed on the second code bus 6.2, which correspond to the zero value of the adjacent interval of the second generator 1.2 (zero value of the delay time between the input trigger signal and the output pulse of the second generator 1), a signal is generated at the output of the second detector 3.2 zero, under which the switching occurs the second multiplexer 2.2, and on the second output bus of the device and the synchronization input of the third generator 1.3 receives the output signal from the output of the first multiplexer 2.1.

All subsequent from the third to N-ro generators 1.3-1.N, multiplexers 2.3-2.N, detectors 3.3-3.N zero work, as well as the similar blocks of the second link discussed above. The only difference is that the output signal of the N-ro multiplexer 2.N, in addition to the N-ro output of the device, also goes to the zero input of trigger 4, which returns to the initial zero state by the output, which allows the operation of the first generator 1.1 in self-oscillating mode and passing

external clock signals through the pass block 5 to the second input of the first multiplexer 2.1.

When the signals are installed on the first code bus 6.1, at which the pulse repetition period of the first generator 1.1 corresponds to a zero value, the first detector 3.1 is triggered and the control signal appears at its output, under the action of which the first multiplexer 2.1 switches to its output signals from the output of block 5 are passed. The input signal, if it arrives after processing all adjacent intervals (2 ... N) by the generators 1, passes through the pass block 5 and the first multiplexer 2.1 to the first output bus of the device, the synchronization input of the second generator 1.2, and the installation input to trigger unit 4, which blocks the passage of external synchronization signals through the pass block 5 for the duration of operation (2 ... N) of the generator 1. On the edge of the input signal, the second generator 1,2 starts up and then the entire operation of the device occurs as described above.

Thus, a sign of the operation of this multiphase pulse generator is the formation at its outputs of a code sequence of pulses that are synchronous with the output signals of the first oscillator 1.1, operating in self-oscillating mode, or with input clock signals from an additional external generator.

A feature of the device’s operation is the ability to adjust the duration of adjacent intervals (delay time between two adjacent output pulses of the T generators), starting directly from zero, which expands the scope of the device and allows for free selection of the total number of output pulses in the code sequence pulses without additional hardware costs for controls while increasing the homogeneity of circuitry, and technological solutions state, and consequently, the simplification of its technical implementation.

Since in this device, when setting the zero value of the time interval between pulses in one of the generators, the signal passes directly from the input of this generator to the input of the next generator or the whole device switches to external synchronization mode from an additional generator, when saving all

subsequent time relationships between the output pulses of the generators provides the ability to adjust the duration of adjacent intervals directly from zero, which gives

Claims (1)

the possibility of free choice of the total number of output pulses in the code sequence of pulses without additional hardware costs. Claims A multiphase pulse generator comprising two multiplexers, a trigger, a first code bus, an input bus and N output buses, characterized in that, in order to expand the scope by controlling the number of output pulses in the code sequence, N-1 code buses are introduced into it . N-2 multiplexers, a transmission unit, N zero detectors, the inputs of which are connected to the corresponding code buses and to the corresponding information inputs of the corresponding pulse generators, the first input of each of the N multiplexers is connected to by the output of the corresponding generator, the second input of each of the multiplexers, starting from the second through N, is connected to the output of the previous multiplexer, to the start input of the corresponding generator and to the corresponding output bus, and the address input of each of the N multiplexers is connected to the output of the corresponding detector zero, the output of the first multiplexer connected to trigger S-input, R-input which is connected to the output of the last multiplexer, the output - with the input setting the initial conditions of the first generator and with the first input of the pass block, the second input of which is connected to the input bus, output - with the second input of the first multiplexer