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???
12/31/05 11:31
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#106259 - capacitor postions
Responding to: ???'s previous message
hello erik

I have 0.1uf capacitors near vcc pin and two more near resistor networks i am using three 10kohm resistor network and all these are having seperate 0.1uf capacitor at the common vcc pin.

and why not electrolytic capacitors
my board is having 22uf capactor at power input pin

even i tested to give 5V from smps of computer.
then also i got problem with lcd display unwanted random characters are being displayed on it.

bye and happy new year little year




List of 22 messages in thread
TopicAuthorDate
2 power supply problems            01/01/70 00:00      
   Experts are in Christmas holidays..            01/01/70 00:00      
      low pwr chips            01/01/70 00:00      
         Improved '51            01/01/70 00:00      
         Re:low pwr chips            01/01/70 00:00      
            try first            01/01/70 00:00      
            LP2950CZ-5.0 is good one            01/01/70 00:00      
   Answers            01/01/70 00:00      
      thank u kai i am already having            01/01/70 00:00      
         Further questions            01/01/70 00:00      
            The often overlooked fact is that "power            01/01/70 00:00      
            i have used 3300uf storage cap            01/01/70 00:00      
               posts in gobbelygook            01/01/70 00:00      
                  i was not aware            01/01/70 00:00      
                     why should I try to decipher what you            01/01/70 00:00      
                        capacitor postions            01/01/70 00:00      
                           you need 10-100nF directly (less            01/01/70 00:00      
               It's the neglectin of solid ground plane            01/01/70 00:00      
                  thank you kai i will try with solid gnd            01/01/70 00:00      
                     Directly underneath the signal traces            01/01/70 00:00      
   a suggestion            01/01/70 00:00      
      Simple Switchers LM2575            01/01/70 00:00      

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