Fan with temperature controlled rotation speed

摘要: The invention employs a stabilization circuit including longitudinal branch with series connection of Zener diode and resistor in the other transistor where motor winding driving electric cross-branch is provided corresponding resistor. In case such an operating without current control, two modes operation advantageously achieved by voltage divider, which comprises temperature dependent element relatively small larger adjustable resistor, addition each again smaller this divider influences directly connected winding. combination for controlling rotation speed simple manner results fully satisfying operational circuit.