| 摘要 |
A central control apparatus for air conditioning system having a central processing part(100) consisted of a ROM(160) and IC(U3) connected to a clock(170) for displaying time and date to control all the system: a console connecting port(110) consisted of a connecter(JP1), output part(U1) & input part(U2) connected to said connecter(JP1) and communicating with a control panel having key pad for displaying information required to outside or effecting particular operation: a communication part(120) consisted of a IC(U11), resistors(R9~11) for suppling power, a condense(C6) and connector(J1) and communicating data with outside computer or controller: a reset generator(130) consisted of a zener diode(DZ1), a variable resistor(RV1), resistors(R2~6), condenser(C3~5), OP amp(U10A,U10B) for comparing voltage, resistors(R5~7) and transistor(Q1): an input part(140) consisted of resistors(R12,23;13,24), a diodes(D1,D2), LED1 & LED2 and photocoupler(PC2) and receiving signal for sensing the operation state of particular switch: an output part(150) consisted of switching transistor(Q3,Q4), diodes(D3,D4), a photocoupler(PC1), a IC(U12) connected to said photocoupler(PC1), enable transistor(Q2) and resisters(R14,R15): and a buffer(180) is disclosed. Thereby, Thereby, it is possible to supply power to respective circuit to remove bad smell in air.
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