344 Communication in Inverter AC Outdoor Unit Circuit Board Repair Course - Part 4

Communication in Inverter AC Outdoor Unit Circuit Board. DC Inverter AC Outdoor Unit Circuit Board Course - Repair / Function / Troubleshooting - Part 4. in this video i discussed communication in inverter board of inverter air conditioner. communication is a exchange of data between indoor unit and outdoor units of dc inverter air conditioner, line neutral and earthing wire is connected to indoor and outdoor units and the fourth communication wire is used for sending serial data at a specific rate. it is basically a coded signal which is transmitted from a unit to the other unit. the receiving unit decodes the signal and implements the instructions asked by indoor unit. when any information for any failure is sent by outdoor unit, the indoor unit receives the signal and decodes it and displays on the display. After watching this video you will be able to understand:-
what is communication in dc inverter ac
what is communication error in inverter ac
what is communication circuit in inverter air conditioner
how to fix communication error
Watch this video in Urdu Hindi Language • 167 Communication in I...
in Part 3 • 164 DC Inverter AC Out...
of DC Inverter AC Outdoor Unit Circuit Board Course - Repair / Function / Troubleshooting - Part 3 in urdu hindi language. i discussed TNY278 switch mode power supply, it switches at 132 KHz and the high frequency transformer transfers voltages in output 12 volt, 15 volt and a LM7805 voltage regulator regulates 5 volt for microcontroller. 15 volts are used to bias ipm, intelligent power module, and 12 volts are used to apply biasing relays and UL2003 / ULN2003 IC.
in Part 2 • 159 DC Inverter AC Out...
DC Inverter AC Outdoor Unit Circuit Board Course Repair / Function / Troubleshooting Part 2 i discussed the rectifier circuit, dc rail, bulk capacitor, pfc circuit, IGBT in power factor correction circuit, reactor and metal oxide voltage arrester (MOV) and ceramic capacitor for ripple removal.
To Watch Part 1 of this series • 153 DC Inverter AC Out...
DC Inverter AC Outdoor Unit Circuit Board Course Repair / Function / Troubleshooting - Part 1. in this part i discussed the components in EMI Electromagnetic Induction / RFI Radio frequency interference. it contains fuse for current protection, first stage filter for high frequency harmonics, mov metal oxide varistor for high voltage protection, surge arrester for lightening arrester. then we have PTC for positive temperature co-efficient to protect over current surges. then there is a a bypass relay to operate the circuit in normal mode. in any conditions the microcontroller turns off the bypass relay and the circuit load is transferred to PTC for more protection