User Activity

  • Posted a comment on discussion Open Discussion on Open Programmer

    Sirs, explain to me, stupid, how can LEDs (D1-D2) work in this programmer circuit with such a high resistance of voltage-dropping resistors R8-R9? After all, with a normal typical current of 20 mA LEDs, a voltage of as much as 44 volts should drop on each voltage-dropping resistor with a resistance of 2.2 kOhm, according to Ohm's law! (V=IR=0.02A2200ohm=44v) Where does such a high voltage come from in this circuit? In my opinion, the outputs of RA1-RA2 cannot have a voltage of more than 5 volts,...

View All

Personal Data

Username:
zagin
Joined:
2024-09-04 13:32:17.547000

Projects

  • No projects to display.

Personal Tools

Auth0 Logo