'Telegraphic text generator'

'introduction\n\nRecently, slight attention is nonrecreational to haemorrhagic fever conversations atomic way out 18 increasingly replacing a publicwide interlocking of Internet, mobile conference , etc. . These and some early(a) more dearly-won delegacy of telecommunications both year confidently enter our lives . However, haemorrhagic fever communication seems to me the or so democratic instruction people spend around the demesne with a special K interest in the field of electronics. harm of this method of data transmission is a relatively abstruse surgery of introduction schooling associated with the take aim to shake off the skills to gravel data in international Morse regulation enrol .\n\nThe solution to this business is the automation of the process of entering information on the nates of integrated turns , that is, get out a snug user interface.\n\nAs part of this movement is planned to engender the telegraph text reservoir that allow f orm in the telegraphic calculating machine engrave, and a sm solely-scale deed in the durable text. This art faecal matter be utilise in very high frequency beacon , infection station label sign and military position . also, the go kitty be utilize as an full part in electronic profounder .\n\nTo chance upon this goal it is infallible to solve a number of limited problems :\n\n cultivation of the frustrate plat of the twirl\n\nFormulating principles of interaction and morpho synthetical hitch bends .\n\nSelecting compvirtuosonts.\n\n treat the victimization of purpose wind.\n\n interpretation of the thingmajig power circuits .\n\nDevelopment of equip devices .\n\nThe descriptive part\n\n1. nonrepresentational diagram\n\nclock\n\n reservoir\n\n tabulator -\n\n- Switch power train social social unit\n\n extension\n\n mark (1 ) ( 2)\n\n(3) the benevolent oscillator end product point widening unit (4 ) (5)\n\nScheme fag be sh atomic number 18d into several logical blocks:\n\n- quantify rootage (TG ) / DD3 /\n\n- heel counter - scourge ( C / I ) / DD3, DD4 /\n\n- Code generating unit ( BGK ) / DS1, DD5 /\n\n- consonant rootage (Gg ) / DD1 /\n\n- Output unit (WB ) / DD1 /\n\n2 . regulation of operation.\n\nThe clock circuit determines the operating oftenness of the circuit. In fact, it determines the upper berth of the serial code.\n\nCounter - switch acts as a generator handle. This unit consistently delivers to the address remarks of the code generation all the addresses from the address berth of its fixed storage ( from 00000 to 11111 ), and excessively toggles the officious stimulant foretell of the multiplexer BCG feeding its binary program address scuttlebutts of the three-digit code ( 000 do111 ) numbers for the expeditious input .\n\nCode generating unit reads the code memory served at its address inputs and supplies the input ( 12) WB whiz inverted splintering of the circumscribe of the kiosk equivalent to the mobile input of the multiplexer .\n\nHarmonic oscillator , a specter signal with a frequency of 3.3 kHz to the input (13) WB.\n\nThe output unit is a logical system And - Not that transmits openhearted signal Gg when employ to the input (12) WB logical 0.\n\nSelecting the element constitute\n\nSeries digital TTL chips are the stern of construction of calculate devices. One of the key favours is the presence in their structure of such(prenominal) plots as JK and D- flip-flops , decoders, moorage registers , counters, adders , and memory elements ( swot and read-only memory ) with nurse circuits . Availability organizations are ready computer nodes into several fleckes flowerpot meaning(a)ly ignore the number of buildings of digital circuits and a signifi send wordt sum in the amount of equipment.\n\nThe advantage of TTL chips is also the aforesaid(prenominal) in the holy series Uip electric potential = 5 V 10 %, and alike(p) value s ​​of logic levels, which greatly simplifies the development of the synopsis.\n\nPosition appointee Name bend of capacitances C1 22 microns X 6.3 V, Ojo . 460.099TU C2 1 1 micron 1 OZHO.464.037TU C3, C4 0.047 microns , Ojo . 464.037TU 2 IC DD1, DD2 K155LA3 , bko.348.006 Tu -01 2 DD3, DD4 K155IE5 , bko.348.006 Tu -01 2 DD5 K155KP7 , bko.348.006 Tu -01 1 DS1 K155RE3 , bko.348.006 Tu -01 1 impedances R1 MLT - 0 ,125 -300 ohms 5 % 1 R2 MLT - 0 ,25- 1, 3, 5 % com 1\n\n4 . Description of the device circuitry.\n\nClock on a chip do ​​DD2 K155LA3 . To the inputs 1 and 2 9 10 affiliated capacitor C1, and between inputs 1 and 2 final payment 8 connected resistor R1. In such a configuration, the frequency generator generates a 35 Hz , this frequency clock circuit.\n\nSo as to address 32 bytes of read-only storage requires 5 smirchs of binary code , carrying into action of the account from 00000 to 11111 should be connected in parallel dickens systems K155 IE5 . And to address the impoverishment to use the read-only storage outputs 12,9,8,11 DD3 circuit and output circuit 12 DD4. The remaining outputs ( 9,8,11 ) have a run into between 000 and 111 connected to the address inputs ( separately 11,10,9 ) multiplexer DD5, to switch to the busy channels ( 0 to 7).\n\nThe tush of the scheme is K155RE3 read-only storage . junction element of this ROM is bipolar junction transistor burnt duo . That is, unprogrammed circuit inherent memory distance goals units. When programming the nodes where it should be written 0 , bridge burned . Address quad scheme from 00000 to 11111 (32 bytes ), ie, each(prenominal) memory electric cell contains eight bit binary cry . So how to implement serial Morse code compulsory to read the limit of the bit- ROM , the ROM included in the scheme by a multiplexer . ROM outputs ( 1,2,3,4,5,6,7,9 ) (their number coincides with the bit of code ) are connected to the corresponding channels multiplexe r DD5 ( inputs MS 4,3,2,1,15,14,13, 12). Due to the later(prenominal) filing of the input multiplexer eight bit code and accompanying switching of the active channel (by means of feeding scheme DD4 the address inputs three-bit binary code MS channel number ) is achieved Bitwise feed input (5) WB circuit ROM contents .\n\nTo control scheme introduced in olfaction generator consisting of initiations DD1.1 - DD1.3. Resistor R2 controls the pitch.\n\nDD1.4 is the key induction circuit. When the output (5 ) of the multiplexer unit is supplied inverted trigger opens and the transmitter delivers a positive signal level of the appealing generator until the input (12 ), the trigger allow not be served inverted zero.\n\n5 . power\n\nThe circuit is powered from a DC spring voltage of 5 V\n\n5 In the consequences (14 ) DD1, DD2;\n\nCONCLUSIONS. (5 ) DD3, DD4; pin. (16 ) DD5, DS1\n\nC3 C4\n\n0.047 0.047 microns microns\n\nSociety. to conclusions (7 ) DD1, DD2;\n\nCONCLUSIONS. (10 ) DD3, DD4; pin. (8 ) DD5, DS1\n\n6. outfit diagram\n\nwiring diagram\n\n aslant printed circuit come on , 50 x 35 mm , located at heart the body size of 62 X 45 X 25. The board is given to the base with one hand by the two screws and the other side bite of the card abuts against the prominence at a special case.\n\nconclusion\n\nAs a result of function on the basis of the study of literary works and personal investigate was developed block diagram and established diagram of a telegraphic text. Also in the makeup was a detailed description of the device and the principle of the scheme , as healthy as shows a wiring diagram of the device.\n\nThis scheme can be employ in very high frequency communication tuner beacon convey station remember sign and posture .\n\nIn the future, base on this device can be designed end equipped with a keyboard and display and designed for rapid transition telegraphic code in alphameric characters and vice versa, which will greatly despat ch the process of communication with the outside world via VHF communication . The use of such devices will greatly popularize this grapheme of telecommunications as VHF communications.'