MC14093 pulse width modulation controller circuit design

Posted on Feb 5, 2014

Using a MC14093 CMOS type IC, a quad 2-input NAND Schmitt trigger circuit can be designed a very simple pulse width modulation circuit controller electronic project. This pulse width modulation controller electronic project is very simple and require few external electronic parts. The speed is adjustable from 0-max. Max rpm is 2/3 the supply vol

MC14093 pulse width modulation controller circuit design
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tage. Supply voltage that can be used in this project can be between 3 and 18 volt. MC14093 CMOS type IC can be directly interchanged with the MC14011 CMOS IC. Input pins 8, 9, 12, and 13, need to be connected to Gnd. or `V+`. Output pins 10 & 11 are left floating. Maximum current draw, with the components shown, is approximately 220 mA max using a small type motor. To minimize RFI (Radio Frequency Interference), put a Ferrite Bead on the gate of Q1. A schottky diode of proper specs may be required for some motors which require faster switching.

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