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The no transformer constant voltage power resources circuit

2015-03-22 04:02  
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The no transformer constant voltage power resources circuit formed by LR6
As the picture shows, these are two different constant voltage power resources formed by LR6. LR6 is a kind of high input voltage and low output voltage linear AVR without transformer. It has many kinds of packages, such as TO-92,TO-220,TO-243,DIP8 and so on. Its output voltage is 10 V and output current is 3 mA. Picture (a) is power resources circuit and picture (b) is the extending current circuit. R1+R2=250k (changing the value of R1 and R2 can cause the change of the voltage from 10 V to 12 V).