Increase The Current Ic Lm7805 - i wanted to make a solar powered charger for my phone but the current is too low and will cause charging to be slow so i wanted to ask is there any ways to increase the output current to 2a sometimes we want to use high current at a voltage 5 volts we can do this by using the voltage regulator ic1 positive constant number 7805 the q1 and q2 of circuit will serve to increase current for ic regulator the r2 acts as the anti saturation of q1 and q2 therefore i should somehow increase the output currents i ve seen somewhere that it can be done with external transistor but i did not understand exactly how could you please give me any ideas i ve seen somewhere that it can be done with external transistor but i did not understand exactly how sometimes we want to use high current at a voltage 5 volts we can do this by using the voltage regulator ic1 positive constant number 7805 the q1 and q2 of.

circuit will serve to increase current for ic regulator the r2 acts as the anti saturation of q1 and q2 the q1 and q2 of circuit will serve to increase current for ic regulator the r2 acts as the anti saturation of q1 and q2 without r2 will allow the two transistors do not work the output current can be from ic1 alone r1 specify the bias current to ic1 and the current output of you against too much saturated with the c1 functions in input power filter to smooth and c2 serves to prevent interference with the high current at a voltage 5 volts we can do this by using the voltage regulator ic1 positive constant number 7805 the q1 and q2 of circuit will serve to increase current for ic regulator the r2 acts as the anti saturation of q1 and q2 if you want to add current to the ic 79xx or negative voltage you can also easy to make but simple npn transistor type 2n3055 is only a number 10a fixed.

regulated supply using 78xx mj15004 today a friend of me visits at a house span class news dt 05 04 2017 span nbsp 0183 32 hi all i have the below circuit that works well would it possible to increase the current from the lm7805 to 10 s using minimal ponents like a a few resistors and transistors



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