Stages

8-3Half-BridgeWith one pin, switch the motor between running and a quick stop (brake)

Power off

Parts

This stage can be solved with wiring alone.

Goals

  • Spins at 10,000 rpm or more when OUT1 goes H
  • Then it stops within 0.5 s when OUT1 goes L (braking)

Rules

  • Never turn the top and bottom FETs on together (shoot-through)
  • Keep the FETs under their voltage rating (20 V)
  • Don't leave a FET's gate floating
  • Don't let the FETs overheat
  • Keep OUT1's current to 20 mA
  • No short circuits
B13VM1Q1IRLML6402Q2IRLML2502MCU OUT (5V)−++−GDSGDSGNDOUT

Selected

Press a terminal (the small ◯) to start a wire. Press where you want to bend to place corners, and finish on another terminal or on a wire. Press the middle of a wire and then somewhere else to draw a branch from there. You can drag parts and wires to move them. When you are ready, press "Run!" to turn on the power, and try the switches while it is on.

Line mode

Keys

W
Draw wire
R
Rotate
M
Move
G
Drag
Del
Delete
⌘Z
Undo
⌘⇧Z
Redo
Enter
Run
Home
Fit
H
Hint

Wheel to zoom, right-drag to pan