Home » » Simple Negative Adjustable Power supply with 7905

Simple Negative Adjustable Power supply with 7905



Negative Adjustable with 7905

Often we have to adjust the tension of a negative supply and do not have the ideal component hand, this circuit in addition to solving this problem, serves up a Power Adjustable Negative. He use the regulator 9v negative, 7905, the envés to use with fixed voltage, we can use it as a variable regulator. The 7905 in this configuration can adjust the output from -5 to-30V with an input of up to-35V. See table below.

Example: Vin = -20 V

Radj Vout
33 -5,74
100 -6,99
330 -11,03
680 -18,20

0 comments:

Post a Comment

www.circuitsprojects.blogspot.com

Find Us on Facebook

Top Circuits Diagram

Popular Posts