SU383102A1 - TIME RELAY - Google Patents

Description

The invention relates to automation, telemechanics and can be used to obtain a long time delay of signal generation. The known time relays, which contain a pulse generator and two series-connected storage units, are complex and do not provide large shutter speeds. The aim of the invention is to simplify the device and increase the exposure time to 10 days or more. This is achieved by the fact that each storage unit contains a storage capacitor, a null organ, a pulse shaper, and a magnetic analogue regulating and storage device (MARSU), as well as a threshold element. Moreover, the storage capacitor is connected to the generator of impulses and one of the inputs of the zero-organ, and the output of the zero-organ is connected via the pulse shaper to the input of the MARZU, the output of which is connected to the second input of the zero-organ and the input of the threshold element. The drawing shows a diagram of the device. The device consists of a generator / pulses and two storage units 2 and 3, connected in series. Each the storage unit contains a storage capacitor 4, a zero-body 5, a driver 6 pulses, a MARZU 7, a resistor 8 and a threshold element made in the form of a semiconductor stabilizer 9, a load resistor 10, a transistor // and a decoupling diode 12. In the initial state The storage capacitor 4 of the storage unit 2 is equal to the bullet, and the voltage at the output of the MARZU 7 of this unit is also absent. When the first pulse arrives from the generator 1, the capacitor 4 is charged by a certain amount. The voltage difference across the capacitor 4 n resistor 8 is fed to a null organ 5, which includes a driver 6 of control pulses smoothly increasing along the amplitude. These pulses are fed to the input of the MARZU 7 and smoothly change the value of its output voltage. As the magnitude of the output voltage of the MARZM is approached to the voltage on the capacitor, the null-organ 5 turns off the MARZU and the voltage on the resistor 8, which is equal to the voltage on the capacitor 4, is memorized. From impulse to pmiuls on the capacitor 4 and on the repstore (5 will increase. At a certain 3 achei; 1and this voltage the Zener diode 9 is punched, as a result of which Tiiai :: j; CTOp / 7 opens and the capacitor / / occurs With this, the voltage across the resistor 8 drops and the zero-organ turns on to work out the unbalance.

Thus, a new voltage accumulation cycle on capacitor 4 will begin. At the same time, the pulse during the breakdown of the Zener diode 9 is also fed to the input of the storage capacitor 4 of the storage unit 3. The accumulation of pulses on this capacitor will be accompanied by an increase in the voltage at the output of the MARZU 7 of the storage unit 5 and the subsequent breakdown of the Zener diode 9 of the second storage unit.

The duration of the pulses of the master oscillator / should be chosen so that the capacitor 4 is charged at a small value. If the pause between pulses is, for example, 1 sec and the capacitor 4 provides for the accumulation of 1000 pulses before the Zener diode breakdown, then its total charge time will be 1000 sec. When both storage blocks are identical, the total formation time

the output voltage will be 10s sec, i.e. about 11 days.

Subject invention

A time relay containing a pulse generator connected in series and two storage blocks, characterized in that, in order to simplify the device and increase the time delay, each memory 1 block contains a storage capacitor, a zero-organ, a pulse shaper, a magnetic analog control and a storage device (MARZU), as well as the threshold element, with the storage capacitor connected to one input of the nullorgan, the output of the zero-organ through the pulse shaper is connected to the input of the MARZU, o d is connected to the second input of the zero-entry body and threshold element.

R