DC-DC Boost Converter 5V – 14V

0 Credits


Login for download


The first circuit is a low efficiency converter. It uses two NE555 timing ciruits, the first supplies a 21.5 khz trigger to the second which is voltage controlled by the output of an operational amplifier. The output of the second ne555 control a BJT. The second converter has a faster startup and increases its efficiency from 40% to 84%. This result is achieved by replacing the bjt with a N channel mosfet, the diode with a Schottky diode, the coil with a low resistance coil.

  • Free
  • Intermediate
  • 31-50
  • LTspice
  • IV
  • No
  • high ripple outputs of first converter first and second NE555 outputs of first converter low ripple outputs of second converter high efficiency converter NE555 outputs


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.