2. ȸ·Î ¸¸µé±â

ÀϹÝÀûÀÎ ´ÙÀ̾î±×·¥Àº ´ÙÀ½°ú °°´Ù:

--------- 0-5V  --------- ~220V  ----------------
|  PC   |===>===|Circuit|========|Coffee-Machine|
---------       ---------        ----------------

¹ß»óÀÇ ÃÊÁ¡Àº, Áß°è±â ȤÀº 3±Ø°ü ±³·ù ½ºÀ§Ä¡¸¦ »ç¿ëÇÏ¿© ÄÄÇ»ÅÍ·Î Àü¾Ð·®À» Á¶ÀýÇÏ´Â µ¥ ÀÖ´Ù.

Ä¿ÇÇ ¸Ó½ÅÀÌ 200W ÀÌ»óÀ» »ç¿ëÇϰí ÀÖ´Ù¸é Áß°è±â ȸ·Î¸¦ »ç¿ëÇØ¾ß ÇÒ °ÍÀÌ´Ù. Ä¿ÇÇ ¸Ó½ÅÀÌ ³ôÀº Ãâ·ÂÀ» ÇÊ¿ä·Î ÇÏÁö ¾Ê´Â´Ù¸é ±³·ù ½ºÀ§Ä¡¸¦ »ç¿ëÇØµµ »ó°ü ¾ø°ÚÁö¸¸.

¿©±â¼­ ¼³¸íÇÏ´Â ¸ðµç ȸ·Î´Â Å×½ºÆ®¸¦ °ÅÄ£ °ÍÀÌÁö¸¸, ½ÇÃµÇØ¼­ »ý±â´Â ¹®Á¦ÀÇ Ã¥ÀÓÀº ½ÇõÇÑ »ç¶÷¿¡°Ô ÀÖ´Â °ÍÀÌ´Ù. Àü±âÀûÀÎ Áö½ÄÀÌ ¾ø´Ù¸é ºñ±ØÀûÀÎ °á°ú°¡ ÃÊ·¡µÉ ¼ö ÀÖÀ¸¹Ç·Î ½ÇÇà¿¡ ¿Å±âÁö ¾Ê±â¸¦ ¹Ù¶õ´Ù.

220V¸¦ »ç¿ëÇÏ´Â ½ÇÇèÀº À§ÇèÇÒ ¼ö ÀÖÀ¸¹Ç·Î Á¶½ÉÇØ¾ß ÇÑ´Ù. Àû´çÇÑ Ç»Á »ç¿ëÇÏ´Â °ÍÀ» ÃßõÇÏ°í ½Í´Ù.

2.1. ÄÄÇ»ÅÍ¿¡¼­ 0-5VÀÇ Àü¾Ð Á¶ÀýÇϱâ

º´·Ä Æ÷Æ®¸¦ ÀÌ¿ëÇÏ¿© ÄÄÇ»ÅÍ¿¡¼­ 0-5VÀÇ Àü¾ÐÀ» Á¶ÀßÇÏ´Â °£´ÜÇÑ ¿¹Á¦ÀÌ´Ù.

      Back View          -----    Pin 10 - ACK
      Male DB-25         |   |    Pin  9 - D7
      Connector          |   |                           Pin 2 - D0
                         v   v                           v   Pin 1 -
~Strobe
       ____________________________________________________________
      /                                                            \
      \     13  12  11  10   9   8   7   6   5   4   3   2   1     /
       \                                                          /
        \     25  24  23  22  21  20  19  18  17  16  15  14     /
         \______________________________________________________/

1¹ø ÇÉÀº ½ºÆ®·Îº¸ÀÌ´Ù. (¹Ý´ë ³í¸®ÀÌ´Ù.)

2-9¹ø ÇÉÀº µ¥ÀÌÅÍ ¹ö½ºÀÇ ½ÅÈ£·Î, ¾ö¹ÐÇÏ°Ô ¸»Çϸé OUTB ¸í·É°ú ÇÔ²² º´·Ä Æ÷Æ®ÀÇ ºøÀåÀ¸·Î ¾²ÀÌ´Â ¼ÀÀÌ´Ù.

10¹ø ÇÉÀº ¾Ë¸² ½ÅÈ£(ACK)·Î, Á¦¾îÇÏ´Â °ÍÀÌ´Ù. ±×·¡¼­ ¿ì¸®´Â CPU·ÎÀÇ ÀÎÅÍ·´Æ®¸¦ ¸¸µé ¼ö ÀÖ´Ù.

18-25¹ø ÇÉÀº ¹ÙÅÁ(GND)ÀÌ µÇ´Â ªÀº ȸ·ÎÀÌ´Ù.

¼¼ºÎ ³»¿ë :
<= in   DB25    Cent    Name of         Reg
=> out  pin     pin     Signal          Bit     Function Notes
------  ----    ----    --------        ---     -----------------------------
=>       1       1      -Strobe         C0-     º¸³»Áö´Â >0.5 uS ÀÇ ³·Àº ÆÞ½º ¼ÂÆÃ
=>       2       2      Data 0          D0      ÀǹÌÀÖ´Â ÃÖ¼ÒÇÑÀÇ µ¥ÀÌÅÍ ¼ÂÆÃ
=>       3       3      Data 1          D1      ...
=>       4       4      Data 2          D2      ...
=>       5       5      Data 3          D3      ...
=>       6       6      Data 4          D4      ...
=>       7       7      Data 5          D5      ...
=>       8       8      Data 6          D6      ...
=>       9       9      Data 7          D7      ÀǹÌÀÖ´Â ÃÖ´ëÇÑÀÇ µ¥ÀÌÅÍ ¼ÂÆÃ
<=      10      10      -Ack            S6+ IRQ ¿ëÀÎµÈ ÀÌÈÄÀÇ ³·Àº ÆÞ½º ~ 5 uS
<=      11      11      +Busy           S7-     Busy/Offline/Error¸¦ À§ÇÑ ³ôÀº ÆÞ½º
<=      12      12      +PaperEnd       S5+     ³íÁö ¿ÜÀÇ °ÍÀ» À§ÇÑ ³ôÀº ÆÞ½º
<=      13      13      +SelectIn       S4+     ÇÁ¸°Å͸¦ À§ÇÑ ³ôÀº ÆÞ½º
=>      14      14      -AutoFd         C1-     ÇÑ °¡´Ú¿¡¼­ÀÇ ÀÚµ¿¹ÝÀÀÀ» À§ÇÑ ³·Àº ÆÞ½º ¼ÂÆÃ
<=      15      32      -Error          S3+     Error/Offline/PaperEnd¸¦ À§ÇÑ ³·Àº ÆÞ½º
=>      16      31      -Init           C2+     init¿¡ ´ëÇÑ > 50uS ÀÇ ³·Àº ÆÞ½º
=>      17      36      -Select         C3-     ÁöÁ¤µÈ ÇÁ¸°Å͸¦ À§ÇÑ ³·Àº ÆÞ½º ¼ÂÆÃ
==      18-25   19-30,  Ground

2.2. Áß°è±â·Î Á¦¾îÇϱâ

°¡Àå °£´ÜÇÑ È¸·Î´Â ´ÙÀ½°ú °°ÀÌ ±¸¼ºµÇ¾î ÀÖ´Ù.:

                             Vcc
                              |
                              +------+
                              |    __|__
                            Relay   /^\  Diode 1N4002
                             Coil  /---\
                              |      |
                              +------+
                              |
                           | / 
                 4.7K    B |/  C
parallel port >-\/\/\/\/---|        NPN Transistor: BC547A or 2N2222A
data pi                    |\  E
                           | V
                             |
parallel port >--------------+
ground pin                   |
                          Ground
Áß°è±â ŸÀÔ°ú °°Àº Àü¾ÐÀ¸·Î Vcc ¸¦ ¿¬°áÇÑ´Ù. (ÀϹÝÀûÀ¸·Î 5 ³ª 12V¸¦ »ç¿ëÇÑ´Ù) Áß°è±âÀÇ ¸í¼¼´Â Ä¿ÇÇ ¸Ó½Å°ú µ¿ÀÏÇÏ°Ô ÇÏ´Â °ÍÀ» ±ÇÇÑ´Ù.

Æ®·£Áö½ºÅÍÀÇ, ÁýÀü±â(collector) (C) ÇÉ ´ë½Å À̹ÌÅÍ (E) ÇÉ ´ÙÀ½¿¡ Áß°è±â¸¦ ³õ´Â´Ù. À̰ÍÀº Æ®·£Áö½ºÅͰ¡ ³ªºüÁö´Â °æÇâÀÌ ÀÖ°í ¾Æ¸¶µµ ±× °á°ú·Î Ä¿Çǵµ º° º¼ÀÏÀÌ ¾øÀ» ¼ö ÀÖÀ¸¹Ç·Î º°·Î ÁÁÀº ¹æ¹ýÀº ¾Æ´Ï´Ù. :-) ´ÙÀÌ¿Àµå 1N4002´Â Áß°è±â¿ÍÀÇ ¿¬°á¿¡¼­ Æ®·£Áö½ºÅ͸¦ º¸È£ÇÒ ¼ö ÀÖÀ¸¹Ç·Î ´õ À¯¿ëÇÏ´Ù. Æ®·£Áö½ºÅ͸¦ »ç¿ëÇÏÁö ¾Ê´Â´Ù¸é, ¾Æ¸¶ ½ÃÄ¿¸Ý°Ô µÇ¸ç ź ³»°¡.....

2.3. TRIACÀÇ Á¦¾î #1

°£´ÜÇÑ È¸·Î¸¦ ¿øÇÒ »ÓÀ̶ó¸é, ÀϹÝÀûÀÎ ±â´ÉÀÇ SC141D¿Í ºñ½ÁÇÑ TRIACÀÎ ¸ðÅä·Î¶ó¿¡¼­ ³ª¿Â Æ®¸®¾Ç µå¶óÀ̹ö MOC301[012]¸¦ »ç¿ëÇÒ ¼ö ÀÖ´Ù. À̰ÍÀº ´ç½ÅÀÌ ¿©ºÐÀÇ ÆÄ¿ö ¼­ÇöóÀ̸¦ »ç¿ëÇÏÁö ¾Ê´Â´Ù¸é ¸ðÇèÀûÀÎ ÀÏÀÌ´Ù.

¹ÝÀÀ ·Îµå°¡ ¾ø´Â ȸ·Î:

        270     1 +-------+ 6    180
  +5v -VAVAVA-----+       +----VAVAVA-----+-------------- Line Hot
                2 |  MOC  |               |
  TTL in ---------+ 3012  +nc            VA  SC141D
                  |       | 4           / |
                nc+       +------------/  |
                  +-------+               +----\/\/\/---- Line Neutral
                                                LOAD

220 º¼Æ®¿¡¼­ »ç¿ëÇÒ »ý°¢À̶ó¸é, 3021À» ÀÔ¼öÇϵµ·Ï ÇÏÀÚ. ¹ÝÀÀ ·Îµå´Â Motorola Application Note AN-780¸¦ º¸¸é ¾Ë ¼ö ÀÖµíÀÌ Äܵ§¼­ ¹ÙÀÌÆÐ½º¿Í ¿¬°áµÇ´Â °ÍÀÌ º¸ÅëÀÌ´Ù. Ä¿ÇǸӽÅÀº ÀúÇ× ·Îµå¸¦ »ç¿ëÇÏÁö ¸ðÅÍ¿Í °°Àº ¹ÝÀÀÀ» »ç¿ëÇÏÁö ¾ÊÁö¸¸, ´ç½ÅÀÇ °ÍÀÌ ±×·¸°Ô ÇÒÁö ¶Ç ´©°¡ ¾Ë°Ú´Â°¡.

2.4. TRIACÀÇ Á¦¾î #2

+5VDC
|    180                      180            2.2k
+---/\/\/\----+-----+   +----/\/\/-+--/\/\/\---+-------> 120V
              |    1|   |6         |           |         Hot
              |    +=====+         |           | MT1
              |    | MC  | TRIAC   |          +-+
              |    | 3032| Driver  |        G | | TRIAC
              |    +=====+         |         /| |
              \    2|   |4         |        / +-+
       2N3904  |----+   |          |        |  | MT2
              /     |   +--------- | -------+  |
             V      \              |        |  |
             |      /              |        \  |
             |      \ 43    .01u  ---   10k /  |
             |      /       500V  ---       \  |
             |      |              |        /  |
             +------+              |        |  |            Neutral
             |                     +--------+--+---o    o--> 120V
             /                                      load
 >-/\/\--|  2N3904
             \
              V
              |
             ---
            ///
220V¸¦ À§ÇØ ·¹Áö½ºÅ͸¦ º¯È¯ÇÒ ¼ö ÀÖ´Ù.

ȸ·Î ¼³¸í :

MC3032Àº TRIACÀÇ ±¤À½ÇâÀý¿¬Ã¼ÀÌ´Ù. 180 ¿ÈÀÇ ÀúÇױ⸦ ±¤À½ÇâÀý¿¬Ã¼ÀÇ LED À̹ÌÅÍ¿¡ ÀϹÝÀûÀ¸·Î ¸ÂÃß¾î Á¶ÀýÇÑ´Ù. ÇÊ¿äÇÏ´Ù¸é ÀúÇ×±âÀÇ °ªÀ» ¹Ù²Û´Ù. (e.g., 15 mA).

·Îµå ¾øÀÌ ½ÇÇèÇÒ ¼ö´Â ¾ø´Ù´Â °ÍÀ» ÀØÁö ¸»ÀÚ. TRIACÀº AC Àü¾Ð°ú ¿¬°áµÇÁö ¾ÊÀ¸¸é ÀÛµ¿µÇÁö ¾ÊÀ¸¸ç, AC ¿Í ·Îµå ¾øÀÌ´Â ´Ü¼øÇÑ ½ÇÇèµµ ÇÒ ¼ö ¾ø´Ù. 500 º¼Æ®¿¡ ÃÖ°í .01ÀÇ ¼¼¾×ÀÌ ºÙ´Â´Ù´Â °Íµµ.