Multifunction indicator optocoupler |
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IPC classes for russian patent Multifunction indicator optocoupler (RU 2174269):
 
 Generator-shaper electromagnetic pulse (options) / 2173033
The invention relates to pulsed power technology, accelerator technology and can be used to generate high-current high-voltage electric pulses of rectangular shape for powering the accelerator devices, plasma, liner loads, etc
 Shaper pulse sequence / 2169988
The invention relates to a pulse technique and can be used in automatic control systems and measuring devices
Shaper pulse sequence / 2169988
The invention relates to a pulse technique and can be used in automatic control systems and measuring devices
 The generator of the ensemble of signals / 2168853
The invention relates to techniques for the formation of frequency and time signal (UNEF) and can be used in special communication systems to improve protection of information transmission
 The high-voltage pulse generator / 2167491
The invention relates to a high-voltage pulse technique and is intended to generate high-voltage pulses with a short front and a flat part in the installations to produce electron beams, x-rays and the high-voltage pulse technology
The high-voltage pulse generator / 2167491
The invention relates to a high-voltage pulse technique and is intended to generate high-voltage pulses with a short front and a flat part in the installations to produce electron beams, x-rays and the high-voltage pulse technology
 The high-voltage pulse generator / 2164054
The invention relates to the field of high-voltage pulse technology
 The high-voltage pulse generator / 2161859
The invention relates to the field of high-voltage pulse technology
 The high-voltage pulse generator / 2161858
The invention relates to the field of high-voltage pulse technology
 All-optical regenerator / 2105389
The invention relates to the field of information processing, represented by the optical signals, in particular to devices regeneration, amplification, switching of optical signals (OS) solid-state structures
 Dynamic storage device radio signals / 2149464
The invention relates to techniques for generating and processing signals
 Optical digital page calculator square root floating-point / 2130638
The invention relates to electronics and can be used for information processing in computer systems
Optical multiplier / 2076548
 A one-dimensional integral element for comparison of optical signals / 2053577
The invention relates to optoelectronics and can be used for reading and storing optical information
 Photodetector integrated memory element / 2050600
The invention relates to the technical physics, but rather to optoelectronics, semiconductor devices sensitive to radiation
 Photodetector integrated memory element / 2043665
The invention relates to optoelectronics, namely the reading and storage of optical information
 Optoelectronic switch / 2028675
The invention relates to computer technology and can be used, for example, for switching the group of storage devices with a group of CPUs
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(57) Abstract: The invention relates to an optoelectronic instrument engineering and can be used to create optoelectronic transducers and information matrix displays. Multifunction indicator optocoupler contains located in the housing of the first and second photodetector, optically coupled respectively with the first and second optical inputs of the device and electrically interconnected first inputs. The second inputs of the first and second photodetectors are connected respectively with the first and second electrical inputs of the device. The led is optically associated with the first sensor and the first optical input device, the cathode of the led is connected to a second input of the second photodetector. The third electrical input device connected with the first inputs of the first and second photodetectors, the anode of the led with a second input of the first photodetector and through the first resistor with the fourth electrical input devices. The cathode of the led via a second resistor connected to the fourth electrical input devices. The result is improved reliability of the device under varying background illumination and voltage Piatnitsa to optoelectronic instrument engineering and can be used to create optoelectronic transducers and information matrix displays. Known optical bistable device [1], containing situated in the body of the photodiode, the laser diode and the modulator, United in such a way that the appearance of the photocurrent in the photodiode circuit occurring when it is illuminated by external light source, leads to an increase of the pump current of the laser diode, increasing its radiation, part of which is on the chain of positive feedback falls on the photodiode. Known optocoupler with memory function [2], consisting of three LEDs, two photodiodes and two transistors, and the first photodiode is located in the base circuit of the output transistor and is connected optically with the first led and the second led is in the collector circuit of the output transistor and optically connected with the first photodiode that provides the memory effect. These devices are rather complicated and do not provide stable operation in the presence of background illumination, as it does not allow to distinguish between the background and information of the optical signals. The closest in technical essence is an optoelectronic device [3] , containing situated in the body of the laser diode and connected electrically to two phototransistor with heterojunctions, each sedimen optically with one of the photointerrupter. This device does not provide reliable operation under varying background illumination and power supply, as these factors can lead to spontaneous switching on and off of the laser diode even in the absence of appropriate control of the optical signal. In addition, this invention does not allow you to turn on and off the laser diode electrical control signals, which significantly narrows the scope of its possible application. Technical task, which allows to solve this invention is to increase reliability in a changing background illumination and voltage while extending its functionality. The technical problem is solved in that the device containing situated in the body of the first and second photodetector, optically coupled respectively with the first and second optical inputs of the device and electrically interconnected first inputs, second inputs of the first and second photodetectors are connected respectively with the first and second electrical inputs of the device, the light-emitting diode, optically associated with the first sensor and the first optical the ski input device connected with the first inputs of the first and second photodetectors, the anode of the led is connected to a second input of the first photodetector and through the first resistor with the fourth electrical input devices, the cathode of the led via a second resistor connected to the fourth electrical input devices. For effective technical solution photodetectors optically connected with the optical input device through respective polarizers with mutually perpendicular planes of polarization. For effective technical solution of the spectral characteristics of the led and the first photodetector are choosing different from the spectral characteristics of the second photodetector. For effective technical solution counter-parallel with the first led, the second led, optically coupled to the second photodetector and the corresponding optical input device and spectral characteristics of the second led and the second photodetector are the same, and the anode and cathode of the second led are connected respectively with the first and second electrical inputs of the device. For effective technical solution in oklahaoma the invention is achieved by reducing the impact on the operation of the device the light pollution and instability voltage power source. Under background illumination refers to external uninformative optical signals (e.g., solar flare and other) coming in parallel with the control optical signal or without it on both of the optical input device. Increased reliability is manifested in the fact that switching on and off of the led of the optocoupler happen only if the corresponding control optical signal, and not as a result of the destabilizing impact of the above mentioned factors. Extending the functionality of the device in the invention is manifested by the appearance of the functions of electric control on / off of the led (in addition to the function of the optical control, as is done in the prototype), and the electric control can be implemented as dependent and independent external optical control signals. In other words, the claimed device is a bistable display optocouplers are switched from one stable state to another (both optical and electrical signals, and providing optical and electrical indication of the selected state. In addition, under certain conditions, the proposed device provides the input device. The use of polarizers with mutually perpendicular planes of polarization allows to increase the reliability of the device and to simplify its design and optical control. Indeed, the efficiency of the device is not broken, if the control optical signals (including or off), which uses optical signals are linearly polarized in mutually perpendicular planes, will be received simultaneously on two of the photodetector. Therefore, in this case allowed the integration of both optical inputs into a single one. A similar effect in the inventive device can also be achieved by the use of sensors with different spectral sensitivity, but in this case, as the control signals are different on the spectrum of optical signals, spectral agreed with the relevant sensors without the need for optical to separate the led from the second photodetector, which simplifies the structural embodiment of the device. Counter-parallel connection of two LEDs with different spectral characteristics, consistent with the spectral characteristics COOH additional control signals are required. To simplify the technical solution in the present device as photodetectors are photoconductive. The invention is illustrated in Fig. 1 to 3. In Fig. 1 shows the structural diagram of the inventive device with one led and two photodetectors, where 1 is the housing of the device; 2, 3 respectively of the first and second optical inputs of the device; 4 - 7 - respectively the first, second, third and fourth electrical input devices; 8 - led; 9, 10, the first and second photodetectors: 11, 12, the first and second resistors. In Fig. 2 shows the structural diagram of the inventive device with polarizers, where 13, 14 respectively of the first and second polarizers with mutually perpendicular planes of polarization. In Fig. 3 shows the structural diagram of the inventive device with two LEDs, where 8 is the first led; 15 - second led. In the inventive device (Fig. 1), located in the housing 1 with two optical 2, 3 and four electric 4-7 inputs, the anode and cathode of the led 8 are connected respectively with the first and second electric input device, the first inputs of the first 9 and second 10 photodetectors connected between someonething with the anode and cathode of the led 8, the anode and cathode of the led 8 are connected respectively through the first 11 and second 12 resistors with the fourth electrical input devices. In the inventive device (Fig. 2) the first 9 and second 10 photodetectors optically connected to respective optical inputs 2, 3 of the device respectively through the first 13 and second 14 polarizers with mutually perpendicular planes of polarization. In the inventive device (Fig. 1) the spectral characteristics of the led 8 and the first photodetector 9 are different from the corresponding characteristics of the second photodetector 10. Counter-parallel with the first led 8 in the inventive device (Fig. 3) includes a second led 15, optically associated with the second photodetector 10, and the spectral characteristics of the last match, the cathode and the anode of the second led 15 is connected respectively with the first 4 and second 5 electrical inputs of the device. In the inventive device (Fig. 1-3) as photodetectors 9, 10 use photoresistors. In particular the performance of the optocoupler is made in an opaque sealed housing 1 with two spatially separated transparent Windows (optical inputs 2, 3) and four electr the optical control signal is simultaneously supplied to both of the photodetector 9, 10. As photodetectors 9, 10 are used miniature thin-film photoconductive based on semiconductor compounds, sulfide, cadmium selenide with a maximum spectral sensitivity at a wavelength of ~ 660 nm (red region of the spectrum), and also based on cadmium sulfide with a maximum spectral sensitivity at a wavelength of ~ 565 nm (green region of the spectrum). As LEDs 10, 15 uses tiny LEDs King bright based on GaAlAs (type KM 2520 A01SRC001), emitting at a wavelength of ~ 660 nm, and the GaP (type KM 2520 A01SGC001), emitting at a wavelength of ~ 565 nm. The resistors 11, 12 - miniature low-power resistors with metal conductive layer (type C2-23). The polarizers 13, 14 - film linear Polaroid with mutually perpendicular directions of polarization (type DPP). In the General case, the optocoupler can be performed on a hybrid or integrated technologies, or collected from miniature discrete elements. The device operates as follows: on the third 6 and fourth 7 electrical inputs of the device provides the supply voltage (bus "+" and "-" respectively). The parameters of the resistors 11, 12 are chosen so the device on the photodetector 9, 10, the electric potentials at the anode and the cathode of the led 8 is almost the same. In this case, the electric circuit of the optocoupler is a balanced bridge, the diagonal of which included led 8 (Fig. 1). Simultaneous changes in the intensity of background illumination on both the optical input device, or the change in the value of the supply voltage of the device will not change the potential difference between the anode and cathode of the led 8 and he is constantly in the off state. To switch on led 8 can both optical and electrical method. Upon entering the first optical input 2 of the device including the optical signal resistance of the first photodetector 9 is reduced, which leads to an increase of potential at the anode of the led 8 and the last offset in the forward direction. 8 led turns on. The amount of current flowing through the led 8, determines the brightness of its glow and is determined by the resistance values of the first sensor 9 and the second resistor 12. Part of the radiation of the led 8 is discharged from the housing 1 of the device via the optical input 2, and part flows through the internal optical channel on the first photodetector 9, which is also the nom condition and after termination of including external optical signal. The device is activated electrically by his first electric input 4 serves electrical signal of positive polarity, which also leads to the displacement of the led 8 in the forward direction. The device is turned off (i.e., the damping of the led 8) you can also perform both optical and electrical means. For this purpose it is necessary to submit or disables the optical signal on the second optical input 3 device or a positive electric potential to the second electrical input 5 devices. In both cases, this leads to the equalization of potentials at the anode and the cathode of the led 8 and the blow-out. In the case described above for optical switching on and off of the device can be used the same managing optical signal, but to do that he must only through the corresponding optical input device (the first 2 or 3 second). When hit, for example, includes optical signal simultaneously to both of the optical input 2, 3 does not occur on the device, as the signal is perceived as background. To increase the reliability of the device in this case allows the inventive device shown in Fig. 2 using the linear plane of polarization, installed in front of the respective photodetectors 9, 10, do not change the operation of the device when the background illumination with unpolarized light, however when getting a linearly polarized control signal to both of the optical input 2, 3 device pass it to only one photodetector, realizing the desired switching function. Similarly, does the claimed device (Fig. 1), when the spectral characteristics of the led 8 and the first photodetector 9, equal, differ from the corresponding characteristics of the second photodetector 10. However, in this case, the optical switching device will be different on the spectrum of optical signals. If the supply voltage feeding not on the third 6 and on the first 4 electrical input devices, the led 8 will be simultaneously ignited, and his work, in this case, practically does not depend on the optical control signals. When the counter-enable parallel to the first led 8 of the second led 15 (Fig. 3), optically associated with the second photodetector 10, and the same as the last spectral characteristics, in the device, an additional third steadily the tion) of the second led 15 is an optical or electrical signals, which are quenching (includes) for the first led 8. Sources of information1. Pat. USA N 4675518, MKI G 01 J 1/32, publ. 23.06.87. 2. Japan's bid 60-187067, MKI H 01 L 31/12, publ. 24.09.85. 3. Pat. USA N 5331659, MKI6H 01 S 3/19, publ. 19.04.94. 1. Multifunction indicator optocoupler, containing situated in the body of the first and second photodetector, optically coupled respectively with the first and second optical inputs of the device and electrically interconnected first inputs, second inputs of the first and second photodetectors are connected respectively with the first and second electric input device; a light-emitting diode, optically associated with the first sensor and the first optical input device, the cathode of the led is connected to a second input of the second photodetector, wherein the third electrical input device connected with the first inputs of the first and second photodetectors, the anode of the led is connected to a second input of the first photodetector and through the first resistor with the fourth electrical input device, and the cathode of the led via a second resistor connected to the fourth electrical input devices. 2. The device according to p. 1, ousia polarizers with mutually perpendicular planes of polarization. 3. The device under item 1, characterized in that the spectral characteristics of the led and the first photodetector are different from the spectral characteristics of the second photodetector. 4. The device according to p. 3, characterized in that a counter in parallel with the first led, the second led, optically associated with the second sensor and corresponding optical input device and spectral characteristics of the second led and the second photodetector are the same, and the anode and cathode of the second led are connected respectively with the first and second electrical inputs of the device. 5. The device according to PP.1 to 4, characterized in that as photodetectors are photoconductive.
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