UA55753A - Transistor switch - Google Patents

Abstract

The proposed transistor switch contains four bipolar p-n-p transistors, two resistors, an input terminal, a terminal for a control signal, a terminal for connecting two power supply units, a common terminal, and an optron containing a light-emitting diode and a field-effect phototransistor. The bases of the second and fourth bipolar transistors are connected to the common terminal via the drain-source junction of the optron field-effect phototransistor. The emitters of the said transistors are connected to the common terminal. The anode of the optron light-emitting diode is connected to the terminal for a control signal, and the cathode is connected to the common terminal.

Description

Y) | (51) 7 NOZK17/60

Sivas

M

MINISTRY OF EDUCATION Y

OF SCIENCES OF UKRAINE F) P AND S IS ISSUED UNDER THE RESPONSIBILITY

EARTH DEPARTMENT I'm a vpasnika

ВЛАСНОСТІ НА ВИНАХІД иХЗЗЄлТНЬООЬНЬХЬИЬКИЬТКИТНТЬИКИЬНИНЬКИИЬТЬКЬИЬНЬИЬНЩКЬКИЬНИНККШИИКККНИИЬИЬНТНЬТЬТЬТЬТЬТЬТЬТЬТЬТЬТЬТЬЬТЬТЬТЬИЬЬЬЬССТСЬСЬЬИЧТЬИОТИ:ННИООВИНИВИНИЬ: ТОТЙіИОИКТШОВЕБМШЖІТГШНВШЛВШОВТОООИІОИОЬТИТЬНЬИНЬИНИНИНИИНЯ (54) ТРАНЗИСТОРНИЙ ПЕРЕМИКАЧ 1 2 (21) 2002064554 резистор підключено до колектора четвертого (22) 04.06.2002 транзистора, базу третього транзистора через (24) 15.04.2003 другий резистор підключено до колектора другого (46 ) 15.04.2003, Bull. Me 4, 2003 of the transistor, the emitters of the first and third transistors are connected to the buses of the first and (73) TAVRIYSKY NATIONALNY of the second power sources, the bases of the second and fourth

UNIVERSITY NAMED BY V.I. VERNADSKY transistors are connected to each other, which cut- (57) A transistor switch that contains an optocoupler, the sixth and second p-p-p transistors, the third and fourth- which contains pairs: an LED -field phototransistor p-p-r transistors, the first and second resistors, while the bases of the second and fourth transistors, load, input bus, control bus, n-resistors through the drain-drain transition of the field photobus of the first power source , the bus of the second transistor of the optocoupler is connected to a common bus, the power sources and the common bus, the collectors and emitters of these transistors are connected to the input of the first and third transistors are connected between the buses, the anode of the LED of the optocoupler is connected to the battle bus and through the load are connected to the common control, and its cathode is connected to the common bus, the base of the first transistor through the first bus.

The invention belongs to the pulse technology and the buses of the first and second sources, respectively, "can be used to switch the supply voltage, the base of the second and fourth transistors of any polarity in automation devices. connected to each other and through a third resistor connected

There is a well-known device (see a.s. of the USSR connected to the input bus, the base of the third transistor

Me1269249, class NOZK17/00) which contains a bridge through the fourth resistor is connected to the control bus, the switch, which is made of four p-p-p traces, and its collector is connected to the emitter of three resistors, two p-p-p transistors and four transistors, the emitters of the third and fifth resistors, the inverter, the first and second single-vibration resistors are connected to each other, the base of the fifth. tori, the first and second elements AND, the OR element of the transistor is connected to a common bus, and its IF)

NO. the collector is connected to the emitter of the fourth transistor (Se)

The disadvantage of this device is low reliability. Torah. -

The closest to the predicted result is a transistor switch (see low reliability).

USSR Me1359901, cl. NOZK17/60), which contains the features of the prototype that coincide with the essential first, second and third p-p-p transistors, even features of the claimed invention are: the first and "th vert, fifth and sixth p-p- p transistors, p- second p-p-p transistors, third and fourth p-p- th, second, third and fourth resistors, nav- p transistors, first and second resistors, nava- - ntazhanje, input bus, control bus, load bus, input bus, control bus, bus of the first power source, bus of the second power source, bus of the second power source and common bus, collectors of the first and la power supply and common bus, collectors of the first and third transistors with are connected to each other and through the second transistor are connected to each other and through the load are connected to a common bus, the base of the load is connected to a common bus, the base of the first transistor is connected through the first resistor of the first transistor through the first resistor is connected to the collector of the fourth transistor, luceno to the collector of the fourth transistor, the base of the sixth transistor through the second resistor from the third transistor through the second resistor is connected to the collector of the second transistor, connected to the collector of the second transistor, the emitters of the first and sixth transistors, the emitters of the first and third transistors, connected

connected to the buses of the first and second sources and the common bus 13, the collectors of the first 1 and the third power supply, the bases of the second and fourth transistors. terminals 7 are connected to a common bus 13, the base

The reason that prevents the first 1 transistor through the first 5 resistor from obtaining the desired result - high reliability of the device - is connected to the collector of the fourth 4 transistor - is a large number of elements. ra, the base of the third Z transistor through the second 6

The basis of the invention is the problem of the resistor connected to the collector of the second 2 tranches, the reliability of the transistor switch of the transistor, the emitters of the first 1 and the third tranches with a reduction in the number of elements. tori are connected to the buses, respectively, the first 11 and

The task is solved in such a way that the second has 12 power sources, the base of the second is 2, and the transistor switch contains the first, fourth, and 4 transistors connected together and and the second p-p-p transistors, the third and fourth p- through the drain-drain transition of the field-effect phototransistor - p-p transistors, the first and second resistors, the second optocoupler 8 are connected to the common bus 13, the load, the optocoupler, which contains a pair: the LED, the emitters of these transistors are connected to the input - the field-effect phototransistor, the input bus, the bus bus 9, the anode of the LED of the optocoupler 8 is connected to the control bus, bus of the first power source, control bus 10, and its cathode is connected to the spin of the second power source and the common bus, bus 13. the collectors of the first and third transistors are connected The transistor switch works like this- between themselves and through the load are connected to the nom. of the common bus, the base of the first transistor through Buses 11 and 12 are supplied with power supply voltage - the first resistor is connected to the collector of the quadrature. In the absence of control voltage on bus 10 of the first transistor, the base of the third transistor is closed, the phototransistor of the optocoupler 8 is closed, and the second resistor is connected to the collector of the second transistor, as a result of which transistors 1, 2, 3 and 4 of the second transistor, the emitters of the first and third are closed . transistors are connected to the buses, respectively, first. When a positive voltage is applied to the bus 10 and the second power supply, the base of the second and larity, the LED of the optocoupler 8 emits light and the fourth transistors are connected to each other and the phototransistor of this optocoupler opens the transition the drain-leakage of the field-effect phototransistor is When a voltage is applied to bus 9, the optocoupler is connected to the common bus, the emitters of these ha positive polarity, then the current flows through the transistors connected to the input bus, the anode of the string; the emitter junction of the transistor 4, the junction of the LED of the optocoupler is connected to the control bus, the drain of the field phototransistor of the optocoupler 8, and its cathode is connected to the common bus. Transistor bus 13, Transistor 4 works in the injection restorative switch differs from the press prototype. Due to the excess charge of the holes in the cat, to which an optocoupler is introduced, a positive injection of steam occurs in the mislector of transistor 4; LED - field-effect phototransistor, the potential, as a result of which the current through the base of the second and fourth transistors, the resistor 5 flows into the base of the transistor 1. Transistor - through the drain-drain transition, the field-effect phototransistor 1 opens and through the load 7 of the resistor of the optocoupler with connected to a common bus, the emitters flow through the circuit: common bus 13, the load of these transistors is connected to the input bus, anode 7, the collector-emitter transition of transistor 1, the LED of the optocoupler is connected to the control bus, bus 11. On the load 7 voltage appears and its cathode is connected to the common bus. negative polarity.

Proof of the existence of a cause-and-effect When the voltage of the negative connection between the set of essential features of the invention and polarity is applied to the bus 9, the current flows through the circuit; common technical result is the fact that the technical bus 13, the leakage-drain transition of the field phototransistor result - high reliability of the transistor zistor of the optocoupler 8, the emitter transition of the switch transistor - can be achieved only at 2, bus 9. Transistor 2 opens and the current the use of the entire set of essential features flows along the chain; bus 12, emitter transition tra- invention. resistor 3, resistor 6, collector-emitter junction

In the absence of at least 6 single transistors 2, bus 9 in the technical solution. Transistor With the opening sign, the technical result is not achieved. and through the load 7 current flows through the

The drawing shows the circuit of a transistor yoke; bus 12, the emitter-collector junction of the transistor switch. ra 3, load 7, common bus 13, Na

The transistor switch contains the first 1 and load 7, a positive voltage appears, the second 2 p-p-p transistors, the third with and the fourth polarity. 4 p-p-p transistors, the first 5 and the second 6 resis- Reliability of the proposed transistor torus, load 7, optocoupler 8, which contains a pair: a switch higher than in the prototype, due to the LED - field-effect phototransistor, input circuit from the scheme of two transistors and two tires 9, control bus 10, bus 11 of the first generator. power supply, bus 12 of the second power source in 1 and 4 t trucks

I am 125 13 years old

And:

Fig.

Signed for printing on 05/05/2003. Circulation 39 notes.

LLC "International Scientific Committee" str. Artema, 77, Kyiv, 04050, Ukraine (044) 236 - 47 - 24

Claims (1)

A transistor switch that includes first and second p-p-p transistors, third and fourth p-p-p transistors, first and second resistors, a load, an input bus, a control bus, a first power supply bus, a second power supply bus, and a common bus , the collectors of the first and third transistors are interconnected and through the load are connected to a common bus, the base of the first transistor is connected to the collector of the fourth transistor through the first resistor, the base of the third transistor is connected to the collector of the second transistor through the second resistor, the emitters of the first and third transistors are connected to buses, respectively, of the first and second power sources, the bases of the second and fourth transistors are connected to each other, which is distinguished by the fact that an optocoupler is introduced into it, which contains a pair: an LED-field phototransistor, while the bases of the second and fourth transistors are connected through a drain-drain junction field-effect phototransistor of the optocoupler are connected to a common bus, the emitters of these transistors in connected to the input bus, the anode of the LED of the optocoupler is connected to the control bus, and its cathode is connected to the common bus.