CS205482B1

CS205482B1 - Connexion for amplification of two coincident signals of different polarity

Info

Publication number: CS205482B1
Application number: CS441279A
Authority: CS
Inventors: Jan Brousek
Original assignee: Jan Brousek
Priority date: 1979-06-27
Filing date: 1979-06-27
Publication date: 1981-05-29

Description

Vynález rieši zapojenie na zosilnenie dvoch koincidenčných signálov rozdielnych polarit, ktoré v dósledku funkčnej asynchrónie nadobudli rozdielnu polaritu, najmS v experimen· tálnej neurologii.The invention provides a circuitry for amplifying two coincidence signals of different polarities which, due to functional asynchronism, have acquired different polarity, in particular in experimental neurology.

Na zistovanie vztéhov, zmien a analýzu niektorýoh bilaterálnyoh nervových funkcií sa snímajú dva súmerné alebo na sebe závislé biopotenciály. Tieto sa zosilňujú, registrujú a nakoniec niektorou metodikou vyhodnocujú. V prípadoch, kde sa sleduje výskyt asymetrie dvoch dejov, kedy súčasne vznikajú dva potenciály rozdielnych polarit, techniku merania možno podstatné zjednodušit využitím zapojenia podTa vynálezu.Two symmetrical or interdependent biopotentials are sensed to identify relationships, changes, and analyze some bilateral nerve functions. These are strengthened, registered and finally evaluated by some methodology. In cases where the occurrence of asymmetry of two events is monitored, where two potentials of different polarities are generated simultaneously, the measurement technique can be substantially simplified by employing the invention.

Podstata vynálezu je v tom, že prvý tranzistor typu N-P-N má bázu zapojenú na prvý vstup, emitor na čtalší emitor druhého tranzistora opačnej vodivosti a kolektor cez pracovný odpor na kladný pól zdroja a tiež na výstup. Druhý tranzistor má bázu zapojenú na druhý vstup a kolektor na bázu tretieho tranzistora rovnako typu N-P-N. Tento tranzistor má kolektor zapojený na výstup a emitor na záporný pól zdroja.The principle of the invention is that the first N-P-N transistor has a base connected to the first input, an emitter to the other emitter of the second opposite conductivity transistor and a collector via a working resistor to the positive pole of the source and also to the output. The second transistor has a base connected to a second input and a collector to the base of a third transistor of the same type N-P-N. This transistor has a collector connected to the output and an emitter to the negative pole of the source.

Přínos vynálezu je v tom, že sa merané signály vo formě biopotenciálov súčasne zosilňujú a vyhodnocujú v takej formě, že z výstupného signálu možno registrovat počet a trvanie asynchronných stavov porovnávaných signálov ako aj napfiťovú úroveň, pri ktorej tieto sledované stavy sa vyskytli. Okamžité vyhodnotenie výsledkov merania umožňuje naviac zisťovat závislost zmien medzi sledovanými signélmi a vytvořit biologickú spfitnú vfiizbu.The advantage of the invention is that the measured signals in the form of biopotentials are simultaneously amplified and evaluated in such a form that the output signal can register the number and duration of the asynchronous states of the compared signals as well as the voltage level at which these monitored states occurred. The immediate evaluation of the measurement results also enables the dependence of the changes between the monitored signals to be determined and the biological affinity to be established.

Zapojenie podTa vynálezu je znázorněné na pripojenom výkrese a pozostáva z prvého tranzistora 2, ktorý má bázu zapojenú na prvý vstup 1, emitor na ďalší emitor druhého tranzistore 4 a kolektor cez praeovný odpor 6 na kladný pól zdroja a tiež na výstup 2·The circuit according to the invention is shown in the attached drawing and consists of a first transistor 2 having a base connected to the first input 1, an emitter to another emitter of the second transistor 4 and a collector via a resistor 6 to the positive pole of the source and also to output 2.

Druhý tranzistor 4 má bázu zapojenú na druhý vstup 2 a kolektor na bázu tňetieho tranzistora 2.· Třetí tranzistor má kolektor zapojený na výstup 2 ⁸ emitor na záporný pól zdroja.The second transistor 4 has a base connected to the second input 2 and a collector to the base of the third transistor 2. The third transistor has a collector connected to the output 2 of ⁸ emitters at the negative pole of the source.

205 482205 482

20S 482 činnost zapojenia podl’a vynálezu je nasledujúca. Jeden elektrický signál sa privedie na prvý vstup 1, druhý elektrický signál na druhý vstup 2. Signál v kladnej polaritě na prvom vstupe 1 otvára prvý tranzistor 3 vodivosti N-P-N, signál v zápornej polaritě na druhom vstupe 2 otvára druhý tranzistor 4 opačnej vodivosti. Při súčasnom otvorení obidvoeh tranzistorov 2,4 sa dostane prúd z kladného póla zdroja cez pracovný odpor 6 a obidva tranzistory 3, 4 na bázu tretieho tranzistore 2 rovnako vodivosti N-P-N a tento sa otvorí, začne pretekať prúd z kladného pólu zdroja cez pracovný odpor 6, kolektor a emitor tretieho tranzistore 2 ^na záporný pól zdroja. Na výstupe J vzniká úbytok napBtia úměrný úrovniam vstupných signálov.20S 482, the operation of the wiring according to the invention is as follows. One electrical signal is applied to the first input 1, the second electrical signal to the second input 2. The positive polarity signal at the first input 1 opens the first conductivity transistor 3 of the NPN, the negative polarity signal at the second input 2 opens the second transistor 4 of the opposite conductivity. When both transistors 2,4 are opened simultaneously, the current from the positive pole of the source is passed through the working resistor 6 and both transistors 3, 4 on the base of the third transistor 2 equally conductive NPN and this opens. the collector and emitter of the third transistor 2 ^{to the} negative pole of the source. On output J a voltage drop occurs proportional to the input signal levels.

Zapojenie podl’a vynálezu představuje dvojstupňový zosilňovač, ktorého elektrické vlastnosti odpovedajú vlastnostiam Dárlingtohovho zosilňovaSa, má vysoký vstupný a nízký výstupný odpor. Zosilňovač pracuje len pri dvoch koincidenčných signáloch rozdielnych polarit.The wiring according to the invention is a two-stage amplifier whose electrical characteristics correspond to those of the Darlington amplifier, has high input and low output resistance. The amplifier only works with two coincidence signals of different polarities.

Zapojenie podlá vynálezu možno využiť na vyhodnotenie a zosilnenie dvoch elektrických signálov rozdielnych polarit, ako logický obvod súčinu s inverziou pre dva bipolárne signály alebo ako jednovstupný invertor s inhibíciou.The circuit according to the invention can be used to evaluate and amplify two electrical signals of different polarities, as a logic circuit of the inverse product for two bipolar signals, or as a single-input inverter with inhibition.

Claims

The wiring activity of the invention is as follows. One electrical signal is applied to the first input 1, the second electrical signal to the second input

2. The positive polarity signal across the input 1 opens the first N-P-N conductivity transistor 3, the negative polarity signal in the second input 2 opens the second transistor 4 of the opposite conductivity. With simultaneous opening of the two transistors 2.4, the current from the positive terminal of the power source through the working resistor 6 and the two transistors 3, 4 on the base of the third transistor 2 equally conducts the NPN conductivity and opens, starts flowing from the positive pole of the source through the working the resistor 6, the collector and the emitting transistor 2 to the negative pole of the source. The output 2 produces a voltage drop proportional to the input signal levels. The connection according to the invention is a two-stage amplifier whose electrical properties correspond to those of the Darlingto amplifier, has a high input and low output resistance. The amplifier only works with two coincidence signals of different polarities. The connection according to the invention can be used to evaluate and amplify two electrical signals of different polarities, as a logic circuit of an inversion over two bipolar signals or as a single-input inverter with inhibition. OBJECT OF THE INVENTION A connection for amplifying two coincident signals of different polarities, characterized in that the first NPN transistor (3) of my base is connected to: a first input (1), an emulator to the second transistor (4) of opposite conductivity, a collector via the working a second resistor (4) is connected to the second input (2) and a third transistor (5) equalizer collector which is connected to the negative source pole and collector output / 7 /. 1 drawing