SU661728A1

SU661728A1 - Pulse generator

Info

Publication number: SU661728A1
Application number: SU772541436A
Authority: SU
Inventors: Владимир Михайлович Фалькович; Виктор Федорович Берлов
Original assignee: :,--r-i~<?».i.;i-^.-^.--~:^-5*?ji;:j=:'itnreu..-:^-jg;.v;^opy
Priority date: 1977-11-09
Filing date: 1977-11-09
Publication date: 1979-05-05

Description

Изобретение относитс к импульсной технике , может быть применено, например, дл контрол напр жений источников питани и в реле времени. - - .,..-,- ,.. -.The invention relates to a pulse technique, can be applied, for example, to control the voltage of a power source and in a time relay. - -., ..-, -, .. -.

Известен генератор импульсов, содержащий бипол рный транзистор и однопереходный транзистор, одна база которого соединена с шиной эталонного источника питани , друга база через резистор соединена с общей шиной, а непосредственно - с базой бипол рного транзистора , эмиттер которого соединен с общей шиной, а коллек- ю тор - с одним выводом резистора и через диод - с эмиттером однопереходното транзистора и с одной обкладкой врем задающего конденсатора, друга .обкладка котог рого соединена с общей шинойС.A pulse generator is known that contains a bipolar transistor and a single junction transistor, one base of which is connected to the reference power supply bus, another base is connected to a common bus through a resistor, and directly to the base of a bipolar transistor whose emitter is connected to a common bus, and the collector A torus - with one output resistor and through a diode - with a single junction transistor with an emitter and with one plate the time of the driving capacitor, the other of which is connected to the common busbar.

Однако данный генератор не позвол ет контролировать напр жение, измен ющеес в некоторых пределах. However, this generator does not allow control of voltage varying within certain limits.

Цель изобретени - расширение фулкциональных возможностей генератора.The purpose of the invention is to expand the functional capabilities of the generator.

Дл этого в генератор импульсов, содер-.-20 ащий бипол рный транзистор и однопереодный транзистор, одна база которого соеинена с щиной эталонного источника питани , друга база через резистор - с общей шиной, а непосредственно - с базой бипол рного транзистора, эмиттер которого соединен с общей шиной, а коллектор - с одним выводом резистора и через диод - с эмиттером однопереходного транзистора и с одной обкладкой врем задающего конденсатора , друга обкладка которого соединена с общей шиной, введены резистор и стабилитрон , анод которого соединен с базой бипол рного транзистора, а катод - с другим выводом резистора и через дополнительно введенный резистор - с шиной контролируемого напр жени .For this purpose, a pulse generator containing a bipolar transistor and a single-transistor, one base of which is connected to a common reference power source, the other base through a resistor is connected to a common bus, and directly to the base of a bipolar transistor whose emitter is connected with a common bus, and a collector with one output of a resistor and through a diode with an emitter of a single junction transistor and with one plate; the time of the driving capacitor, the other of which is connected to the common bus; a resistor and a zener diode are inserted, oedinen with the base of the bipolar transistor, and the cathode - to the other terminal through a resistor and a further resistor inserted - with the bus controlled voltage.

На чертеже приведена схема генератора.The drawing shows a diagram of the generator.

Claims

The first base of the unijunction transistor 1 through the resistor 2 is connected to the common bus and directly to the base of the bipolar transistor 3, the emitter of which is connected to the common bus connected through the capacitor 4 by the emitter of transistor 1 and the cathode of diode 5. The anode of diode 5 is connected to the collector of transistor 3 connected through the resistor 6 to the cathode of the Zener diode 7, the anode of which is connected to the output bus 8 and the first base of the transistor 1. The second base of the transistor 1 is connected to the bus 9 of the reference power source. The cathode of Zener diode 7 is connected through resistor 10 to bus 11 of controlled voltage. The pulse generator works in the following way. When the monitored voltage Ux on the bus 11 reaches the lower threshold — the KUsT value, where k is the transfer coefficient of transistor 1, the generator begins to generate pulses. When this voltage is above the stabilization voltage of the Zener diode 7, the latter opens. The stabilization current begins to flow through the bus 11, the resistor 10, the zener diode 7 and the transistor 3 to the common bus. Transistor 3 opens and shunts the charging circuit. The generation process fails and there are no output pulses on bus 9. Thus, the generator generation region is between the upper and lower trigger thresholds, determined respectively by the stabilization voltage of the Zener diode and the magnitude of the reference voltage on W, or not 9. Invention The pulse generator containing a bipolar transistor and a single junction transistor, one base of which is connected to bus reference power source, another base through a resistor - with a common length, and directly - with the base of a bipolar transistor, the emitter of which is connected to a common bus, and the collector - with the bottom of the resistor and through the diode - with the emitter of the unijunction transistor and with one lining the time of the driving capacitor, the other lining of which is connected to a common length, characterized in that, in order to extend the functionality, a resistor and a zener diode are inserted into it, which is connected to the base a bipolar transistor, and a cathode with a different output of a resistor and, through an additionally inserted resistor, with a controlled voltage bus. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 488325, H 03 K 3/335, 1973.