SU559378A1 - Pulse generator - Google Patents

Description

The invention relates to electronic engineering and is intended to be used in the development of various, controllable pulsed electronic generators, in particular multivibrators. A pulse generator with a controlled repetition frequency is known, which contains a key, and a control signal bus; -organ 1. This generator does not provide high accuracy control of the pulse frequency. This disadvantage is eliminated due to the fact that in the pulse generator with controlled follow frequency according to the invention one key input is connected to the second control signal bus, the other input is connected to the zero-output output, and the output is connected to yes with a zero-organ input and a capacitor. The drawing shows a block diagram of a pulse generator. The generator contains a key 1, a generator 2 DC discharge current, a capacitor 3, a zero-body 4, the first 5 and the second 6 control units. The generator works as follows. One of the driving voltages Uj from the bus 5 goes to the storage capacitor 3 at the time when the voltage between its plates is equal to zero by opening a normally open key installed in the supply circuit of this voltage. The key is opened by a pulse formed by a zero-org 4, a connected pair of capacitors. At the end of it: 1ult of the zero-organ, the condenser is disconnected from the control unit Uj and discharged through the renefinterTop 2 constant discharge current. The magnitude of the discharge current hovered from the second set voltage and, the flow of light through 6,

those. the discharge time of the capacitor depends on the magnitude of the second driving voltage. When the capacitor reaches zero, the null-org 4 again produces a pulse and a new cycle begins. The period of the generated pulses is determined by the sum of the charge and discharge times of the capacitor, and the duration of the output pulse does not exceed the charge time of the capacitor.

With a linear dependence of the direct current discharge on the magnitude of the second driving voltage, the period following the output pulses is proportional to the ratio of the amplitudes of the driving voltages.

"Formula of invention

Pulse generator with controlled tracking frequency, containing a key, two

control signal buses, zero-or-an, between the inputs of which a capacitor is connected, and current generator paapsma, the input of which is connected to one bus of control signals, and the output connected to the same input NULL-A, differing from that, with increasing frequency control Tu-fflfosti one key input is connected to the second bus control signals, the other input is connected to the output of the zero-organ, and the output is connected to the common connection point of the output of the current generator with the input of the zero-organ and a capacitor.

Sources of information taken into account in the examination:

1.. The author's certificate No. 4 05172, M.Kl.N 03 K 5/156, priority 12.27.71

6