Imported from GitHub: mlh5599/FanPWMtoRotorLock · commit 6f99fe2 · license MIT

Description

Converts the output from a 12v PWM fan to a rotor lock detector signal

README

FanPWMtoRotorLock

Utilizes a missing pulse detector based on the circuitry here to convert the output from a 12v PWM fan to a rotor lock detector signal.

BOM

• 1 10uf Capacitor SMT 08051
• Molex 022232031 Connector
• 1 JST-PH2.0MM Connector
• 1 MMBT2222A-7-F SOT-23 NPN Transistor
• 1 MMBT2907ALT1G SOT-23 PNP Transistor
• 5 10K Ohm Restor SMT 0805
• 1 100 Ohm Resistor SMT 0805
• 1 NE555P SOIC-8 Timer

Images