The paper focuses on circuit design of power switch with bipolar technology and audio amplifier with CMOS techn.

Test results proved that the motor had lower current harmonic, more efficient use of DC supply voltage than SPWM, less switch loss of power switch.

Now I'm not sure if Edison would be proud or rolling in his grave, but one thing's for sure: let's hope no one hits the power switch on the way out of the door on this bulb.