Contrary to popular belief, fan speed settings aren’t always correct from the factory. It’s been a long-standing assumption that you should use the high-speed tap for cooling and low-speed tap for ...

The P266 condenser fan speed control is designed for single-phase permanent split capacitor motors used in a wide variety of outdoor low-ambient refrigeration and air conditioning condenser ...

Most desk fans I have come across have three speeds: Full Speed, Almost Full Speed, and Off – useless if you want just a gentle air movement, and far too noisy if you are trying to get to sleep (in ...

This circuit generates speed pulses from the speed-dependent voltage spikes generated by commonly used types of PC power supply fans, which are superimposed on the supply voltage. The pulse signal can ...