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???
03/05/04 17:07
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#66058 - RE: PS/2 Keyboard near Welding area.
Responding to: ???'s previous message
" Do I need to use isolation for K/B and LCD as well. Do I need separate supply for these devices and micro."

No. In any event the LCD does not isolation - I am sure it must be a few inches of control and data cable. And the K/B with its 2.5 feet cable also can do without any isolation.

" RF interference to nearby welding going on."

The welding arc IS the interfering source and not the other way round.

"Do I need separate supply for these devices and micro."
No. A common power supply that is adequately designed and built with proper interference suppressing measures, grounding etc would suffice for the MCU and all its related K/B , LCD etc. If you want to keep things simple just buy a GOOD switcher. Thats it.

Incidentally I suppose you dont use a simple RC reset for the MCU ?

Raghu

List of 23 messages in thread
TopicAuthorDate
Solenoid operated Pneumatic valves            01/01/70 00:00      
   RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
   RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
      RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
   RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
      Solenoid operated Pneumatic valves            01/01/70 00:00      
         RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
   RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
      RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
      RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
         RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
            RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
         RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
   RE: Solenoid operated Pneumatic valves            01/01/70 00:00      
   First Things First            01/01/70 00:00      
      RE: First Things First            01/01/70 00:00      
   PS/2 Keyboard near Welding area.            01/01/70 00:00      
      RE: PS/2 Keyboard near Welding area.            01/01/70 00:00      
      RE: PS/2 Keyboard near Welding area.            01/01/70 00:00      
         RE: PS/2 Keyboard near Welding area.            01/01/70 00:00      
         RE: PS/2 Keyboard near Welding area.            01/01/70 00:00      
            RE: PS/2 Keyboard near Welding area.            01/01/70 00:00      
   RE: Solenoid operated Pneumatic valves            01/01/70 00:00      

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