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Posts Tagged ‘positive voltage modify’

Negative to positive voltage Supply with LM741

In sometimes when friends want to modify negative voltage source from the outside is positive voltage. We try to come to see this circuit use op-amp IC LM741, be usable easily and, It can change R1,R2 for fix the expansion ratio has of the circuit with. See the detail in the circuit adds.

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Be the first to comment - What do you think?  Posted by admin - December 8, 2008 at 2:11 am

Categories: Op-amp circuit   Tags: , ,

Single Polarity Supply by IC LM741

negative to positive polarity

This is a simple Single polarity (negative to positive polarity) power supply circuit,For education, the work of a series op amplifiers.Since we use the input pin is a pin non inverting, it is an important condition.
the input power must be negative only As a result, the output voltage. However, if the input is positive, it will not delete the output. Because we used the power supply terminal positive and negative only.Or 4 pin connection with the ground.This circuit may be adapted to the negative circuit. Or to converter a negative voltage to positive voltage.

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Be the first to comment - What do you think?  Posted by admin - June 18, 2007 at 12:46 pm

Categories: Basic electronics, Circuit diagram, Power Amplifier   Tags: , ,

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