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close this bookRadio and Electronics (DED Philippinen, 66 p.)
close this folder10. BLOCKS OF RADIOS / -1- / POWER SUPPLIES
close this folder10.5. STABILIZATION
close this folder10.5.1. GENERAL REMARKS
View the document10.5.1.1. LOAD VARIATIONS
View the document10.5.1.2. INTERNAL RESISTANCE OF VOLTAGESOURCES
View the document10.5.1.3. PROBLEMS CAUSED BY THE SMOOTHING CIRCUIT

10.5.1.2. INTERNAL RESISTANCE OF VOLTAGESOURCES

Every voltage source have a so called “internal resistance” which causes voltage drops at their terminals if any load current is drawn from the source.


fig. 100

If the current is varied - (as shown above this is always the case with radio receivers) - therefore the voltage supplied at the terminals of the source will vary too (as shown in fig. 100)