SU488330A1

SU488330A1 - Pulse shaper

Info

Publication number: SU488330A1
Application number: SU1687354A
Authority: SU
Inventors: Сергей Николаевич Баженов; Ефим Мордухович Белявский
Original assignee: Харьковский Ордена Ленина Политехнический Институт Им.В.И.Ленина
Priority date: 1971-08-23
Filing date: 1971-08-23
Publication date: 1975-10-15

Description

При подаче входного сигнала транзистор 8 отпираетс , и конденсатор 7 подключаетс к концз обмотки 4, разр жа сь на нее, перемагничива сердечиик в противоположное состо ние. При этом в обмотке 10 наводитс напр жение. Через обмотку 3 в это врем ток не протекает, так как в это врем диод 6 заперт. Степень разр дки конденсатора 7 зависит от длительности входного сигнала и от величины нагрузки обмотки 10. При окопчаПИИ импульса входного сигнала транзистор 8 запираетс . При этом не возникает перенапр жений , так «а;к К транзистору 8 приложено напр жение конденсатора 7 и встречное ему напр жение обмотки 4, что в сумме не превышает напр жени исто4ника 1 питани .When the input signal is applied, the transistor 8 is turned off, and the capacitor 7 is connected to the ends of the winding 4, discharging to it, reversing the core into the opposite state. In this case, a voltage is induced in the winding 10. Through the winding 3 at this time, the current does not flow, because at this time the diode 6 is locked. The degree of discharge of the capacitor 7 depends on the duration of the input signal and on the magnitude of the load on the winding 10. When the input signal pulse is fallen, the transistor 8 is locked. There is no overvoltage, so "a;; To the transistor 8 is applied the voltage of the capacitor 7 and the counter voltage of the winding 4, which in total does not exceed the voltage of the source 1 of the power supply.

Claims

Invention Formula

A pulse shaper containing a power source, a pulse transformer with

two primary circuits, the first of which is connected by one output to the first pole of the power source through the first diode connected in accordance with the power source, and the other is connected to the second primary winding of a pulse transformer, the capacitor and transistor, the emitter of which is connected to the second pole of the power source , the base is connected to the device input, the collector is connected to the point of connection of the primary windings of the pulse transformer, to the secondary winding of which a load is connected via the second diode Qc in that, to reduce the overvoltage transistor, a second primary winding of the pulse transformer is included opposite the first primary winding and with its free terminal connected via a capacitor to the second pole of the power source.