Reductor voltaje 12v a 7.5v

107

03:00:16

12vdc to 7.5vdc

published 9 years ago

Bushmills

9 years ago

Very inefficient: almost half of the used energy is converted to heat by the resistor.

Robert_Kidd

9 years ago

What's the 2k for?

JDLRHN

9 years ago

I need a voltaje reductor like this but more efficient, help me

nikisalli

9 years ago

Lm317 is the way or more efficient buck converter is the way

JDLRHN

9 years ago

thanks a lot..!

Robinbird

9 years ago

I need voltage regulator Ic LM 7805

2ctiby

9 years ago

I normally use a LM317 regulator as nikisalli suggests, but if you have a suitable zener diode then that could be a good alternative. I like the Robert_Kidd circuit that he has presented here: http://everycircuit.com/circuit/6737708736577536 See how much power is used in your circuit compared to his 12.7x(1.76A cp 547mA). See here for a little more basic circuit help, not entirely relevant to your situation, but the wasted power part may be worth considering: http://everycircuit.com/circuit/5637924378378240

2ctiby

9 years ago

Your circuit uses a Voltage Divider which may be fine here, but consider the resistor values as described in my previous reply here. Dividers can work, but the resistors need to be carefully thoughtout, since any change may well alter the desired Volts.

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