SU1465965A1 - Single pulse shaper - Google Patents

Abstract

The invention relates to a pulse technique and can be used in automation, computing and electronic equipment for various purposes. The purpose of the invention is to reduce energy consumption and increase the reliability of the driver. The driver contains relays 2, 3 with opening contacts 4, 5 and closing contacts 6, 7, respectively, in block 1 of the release delay for integrator 8. When the control signal is applied to the first winding of the polarized relay 3, contact 5 is closed and contact 7 is closed, connecting the power bus 1 release delay unit. The output voltage of the integrator 8 controls the switching of the transistors 9, 10. Reaching the appropriate level, the voltage on the capacitor 14 turns on the transistors 9, 10. This turns on the relay 2, de-energizes the release delay unit 1 and connects the second winding of the polarized relay 3. Shaper returns to its original state. Thus, in the absence of a control input signal, the driver is de-energized, thus achieving the goal. 1 h. rf, 1il with $ s /)

Description

The invention relates to a pulse technique and can be used in automation, computer engineering and electronic equipment- $ re for various purposes "

The purpose of the invention is the reduction of energy consumption and increase: the reliability of the shaper of single pulses. ; The drawing shows a diagram of a 10 'single pulse impulse driver.

The shaper of single pulses contains block 1 delay-vacation. relay, 2 and 3 with NC contacts 4 and 5 and NO contacts. 15. contacts: 6 and 7.

I Block 1 release delay contains an integrator 8, transistors 9 and 10 and resistive dividers 11 and 12 voltage. 20

The integrator 8 contains a resistor · 13 and a capacitor 14.

The terminals of the first winding of relay 3 are connected to the input terminals of the shaper, the terminals of the winding of relay 3 are connected respectively to the common bus and through the make contact 6th power bus connected through series-connected make contact 7 and NC contact 4c with the output terminal of the shaper. The input of the release delay unit 1 through the NC contact 5 is connected to a common bus, and the output through the relay 2 winding is connected to a common bus. The outputs of the power supply of the release delay unit 1 are connected respectively to a common bus and, through the make contact 7, to the power bus.

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Single pulse shaper '. Works as follows.

In the initial state, the driver is de-energized and there is no voltage at the output of the driver. When a voltage is applied to the input of the voltage shaper, relay 3 (polarized) is activated and switches contacts 5 and 7, as a result of which a supply voltage is supplied to the release delay unit 1 and to the output through the disconnect contact 4 of turnip 2, while the transistors 9 and 10 are closed, the relay winding 2 is de-energized, and the capacitor 14 begins to charge with a time constant equal to ΐ = R13. C14,

-where 613 - the resistance of the resistor 13: C14 - the capacitance of the capacitor 14.

When the voltage across the capacitor 14 reaches the threshold voltage specified by the drain of the transistor 9 using a resistive divider 12, the transistor 9 opens and lowers the potential at the base of the transistor 10, which also opens and connects the coil of relay 2 to the power source. Relay 2 activates and switches contacts 4 and 6, while the supply voltage is removed from the output and supplied to the second winding of relay 3, which returns to its original state and, therefore, removes the supply voltage from the release delay unit 1, discharges the capacitor 14 and de-energizes the relay winding 2, contacts 4 and 6 of which also return to their original position, i.e., the driver is in its original state and is ready to receive the next input signal.

Thus, the shaper of single pulses is energized and consumes energy only during useful work and is de-energized the rest of the time, which increases its reliability.

When the supply voltage changes, the degree of charge of the capacitor 14 changes for the same current time, however, the threshold voltage at the drain of the transistor 9 also changes proportionally, as a result of which the opening of the transistors 9 and 10 occurs in almost the same current time, t i.e., the pulse duration at the output of the shaper is practically independent of a change in the supply voltage, which increases the stability of the duration of the generated pulses.

Claims (2)

Claim A single pulse shaper containing a release delay unit, the first, the power output of which is connected to the first power bus, the first and second relays with make and disconnect contacts, the winding terminals of the first relay are connected respectively to the first power bus and the output of the release delay unit, which the fact that, in order to reduce energy consumption and increase reliability, the second relay is made 3 141 polarized, double-winding, the terminals of the first winding of the second relay are connected to the input terminals of the driver, the terminals of the second winding of the second relay are connected respectively to the first power rail and through the make contact of the first relay to the second power bus, the second power output of the release delay unit is connected through the make contact the second relay with the second power bus and through the opening contact of the first relay is connected to the output terminal of the driver, the input of the delay release unit through the opening contact of the second relay with single with the first power bus. 2. The shaper according to claim 1, wherein the, in order to increase the stability of the pulse duration block release delay 55 4 contains an integrator, first and second resistive voltage dividers, first and second transistors, the gate of the first transistor is connected to the output of the integrator and the input of the unit, the drain through the first resistive voltage divider is connected to the second power output of the unit, the inputs of the integrator and 10 of the second resistive voltage divider are connected the corresponding first and second conclusions of the power supply unit, the common conclusions of the first and second resistor voltage dividers 15 'are connected respectively to the base of the second transistor and the source of the first an anistor, the emitter of the second transistor is connected to the second power output of the unit, the collector of the second 20 transistor is connected to the output of the unit.