下面是[脉冲宽度调制直流电动机控制电路]的电路图

材料BOM表：

R1 1 Meg 1/4W Resistor
R2 100K Pot
C1 0.1uF 25V Ceramic Disc Capacitor
C2 0.01uF 25V Ceramic Disc Capacitor
Q1 IRF511 MOSFET or IRF620
U1 4011 CMOS NAND Gate
S1 DPDT Switch
M1 Motor (See Notes)
MISC Case, Board, Heatsink, Knob For R2, Socket For U1