Peter Demchenko

's profile
image

Biography has not been added


Peter Demchenko

's contributions
  • 09.06.2017
  • Beware the TO-220
  • (Ahem) sometimes this is not a problem comparing with the issue within the package!
  • 08.14.2017
  • The weed-eater circuit
  • Yes, assuming a correct answer of the pretendent, the next obvious question - about the gain this stage of amplifier can provide - seems superfluous!
  • 05.31.2017
  • Double µC’s PWM frequency & resolution
  • In its essence a PWM signal is a pulse wave. To get a PWM signal with 180° phase difference it is sufficient to invert the original PWM. If the both amplitudes are equal and the inverter is fast enough you'll get a complementary PWM signal(s)... Agree? I can't see which use can you have from the Fourier series here.
  • 05.24.2016
  • LED current regulator has low dropout
  • What about to read the text one more time? It deals with the lowest possible drop... The 20V is a very modest value, why not 1000? :) And "Q3's parameters" include not only "beta"... Sapienti sat :)
  • 05.01.2017
  • Hubsan FPV drone teardown
  • Good stuff for all ages. Reminds me my disassembling of HC-500 Scouting Trail Camera... While surely simpler, it responds to the same human instinct - to investigate) Let each take-off ends in good landing!