PWM fan | Delta Fan and Thermal Management Products | Delta Electronics Inc.
Pulse Width Modulation Used for Motor Control
Pulse width Modulation (PWM) in STM32F103C8: Controlling Speed of DC Fan
Rosewill 120mm Computer Case Fan (Case Cooling Fan) Ultra Slim 15mm in Thickness with PWM (Pulse Width Modulation) Speed Control & Long Life Sleeve Bearing; Model RASF-141213 - Newegg.com
CPCXXVV10UN-R | ebm-papst A2P Interface Series Fan Speed Controller, Variable, 10 → 57 V dc, Pulse Width Modulation | RS Components