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04/29/02 18:17
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#22280 - RE: power supply problem for 8051
erik malund wrote:
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Remember the recified DC will be close to root 2 times the AC woltage from transformer so the poor little 7805 is probably dropping more than 10 V which at 500mA equates to 5 W.

Hi Erik,
Yes, but we don't know how many VA his transformer is rated at. It sounds like 24VA, with what ? 6% regulation ?

Steve


List of 15 messages in thread
TopicAuthorDate
power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051 Steve            01/01/70 00:00      
RE: power supply problem for 8051 Steve            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051            01/01/70 00:00      
RE: power supply problem for 8051 FĂ©lix            01/01/70 00:00      

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