Stages

8-5A 12V H-BridgeDrive a 12V motor forward and backward from two 5V pins, with no shoot-through in any combination

Power off

Parts

Goals

  • IN1 = H, IN2 = L: spin forward (5,000 rpm or more)
  • IN1 = L, IN2 = H: spin backward (−5,000 rpm or less)
  • While it spins, IN1 = IN2 = H stops it within 0.5 s
  • While it spins, IN1 = IN2 = L stops it within 0.5 s

Rules

  • Never turn a top and bottom FET on together (shoot-through)
  • Keep the transistors and FETs under their voltage ratings
  • Don't leave a FET's gate floating
  • Don't let the transistors or FETs overheat
  • Keep IN1's and IN2's current to 20 mA
  • No short circuits
B112VQ1IRF9540NQ2IRFZ44NQ3IRF9540NQ4IRFZ44NQ5Q6M1MCU IN1 (5V)MCU IN2 (5V)−+GDSGDSGDSGDSBCEBCE+−GNDOUTGNDOUT

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