The single/dual power supply converter circuit

Published:2011/6/23 21:55:00 Author:Seven | Keyword: power supply, converter | From:SeekIC

TDA2030 is an efficient computing amplifier. With its complementary input stage, we can convert the single pole power supply into two dual pole power supplies that the low-power circuits need. In the circuit, the resistors of R1 and R2 with the same resistance compose a voltage distributor which makes the upper and lower part have the same voltage. The central point of the distributor is connected with the non-inverting phase input terminal of the amplifier, and the op-amp is assembled into a voltage follower which makes the LEV of O' and O terminal the same. And O' is a vain point, so it has to be separated from the power supply.



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