SU690617A1 - Pulse shaper - Google Patents

Description

(54) FORMER OF PULSES to the first and second output of the generator, and the second inputs of the first and second elements of the NAND and the second trigger are connected to the control signal source. FIG. 1 shows a structural diagram; FIG. 2 - timing charts the pulse shaper. The pulse generator contains a generator 1, a switch 2, the first element IS-HE 3, the first trigger 4, the second trigger 5 additionally entered, and the second element IS-NOT 6. The control signal is fed to the bus 7. The pulse driver operates as follows. In the original state, in the absence of a control signal on bus 7, positive potentials are formed at the outputs of the AND-HE elements 3 and 6, and on the direct outputs of the triggers 4. and 5 zero signal levels are formed, while the output of the switch 2 signals will not be. After the arrival of the control signal, the leading edge of which coincides with the negative half-wave at the output of the generator 1 (Fig. 26), a negative impulse is generated at the output of the element AND-HE 6, which switches the trigger 5, which turns off the element AND-NOT 3 and connects the switch 2 to the output of the element AND-NOT 6. In this case, the impulses from the output of the generator I, passed the element AND-NOT 6 and the switch 2, go to the output of the driver. If the leading edge of the control signal coincides with the positive half-wave at the generator output a) (FIG. 2c), then the pulses from this output of the generator 1, having passed the AND-NE element 3 and the coymeter 2, arrive at the output of the imager.

The introduction of an additional trigger element AND-NOT and a number of new connections allowed:

- select the leading edge of a burst of pulses due to the commutation of the switch during the coincidence of the leading edge of the triggering potential signal with a positive half-volt trigger connected to the source of the control signal.

Sources of information taken into account in the examination

1. USSR author's certificate number 467453, cl. H 03 K 3/64, 25.05.73.

2. USSR author's certificate number 526056, cl. C 03 K 1/00, 06.23.75. The generator's NIRs, followed by passing all negative half-waves from the generator output to the ycTpoiicTBa output: - reduce the maximum front-edge of a burst of pulses to ½ period by using two identical channels operating in the presence of different half-waves produced by the generator.

Claims (1)

 An inventive pulse shaper comprising an oscillator, an NAND element, a switch, a trigger, one input of which is connected to a control signal source, and an output connected to one of the switch inputs, characterized in that, in order to improve the separation of the leading edge of a burst while reducing its delay relative to the start signal, the second trigger and the second NAND element are additionally introduced into it, the second input of the switch is connected to the second input of the first trigger and to the output of the first element AND-NOT, the third input of the switch is connected to one of the outputs of the second trigger, and the fourth input of the switch is connected to one of the inputs of the second trigger and to the output of the second element AND-НЁ, the second outputs of the first and second triggers are connected respectively to the first inputs of the second and first elements AND-NOT, the third inputs of which are connected respectively to the first and second output of the generator, and the second inputs of the first n of the second elements AND-NOT and second