The invention provides a direct current fan power transmission system which comprises a plurality of groups of direct current fans and direct current power ...

The outdoor fan motors are DC types. The wire colours are Red, Black, White, Yellow and Brown. They run at 850 RPM (up Fan) and 750 RPM (down Fan).

An electronically commutated, direct-current motor of a fan has, in a two-piece housing, a stator formed on one piece of the housing and a blade-equipped ...

A ceiling fan with an outer-rotor type DC brushless motor has a center base with multiple blades and a DC brushless motor as a driving source for the fan.

F04D27/00 Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids.

... fan body, a direct-current brushless motor and a fan control panel. The ... After 220V family expenses alternating current is converted to direct current by DC ...

The drive circuit for a brushless DC fan motor according to the present invention further comprises the Zener diode connected between the node of the field coil ...

The electric fan 10 includes a DC (Direct Current) motor 12. The DC motor 12 has a first shaft 14 penetrating the DC motor 12. One end of the first shaft 14 ...

For use with a DC fan, a detection circuit and a method of detecting an operational condition thereof. In one embodiment, the detection circuit includes: ...

Fan electromotor (wind turbine) generally use DC fan motor of air ... Direct-current brushless fan motor driver and air conditioner adopting driver.

... fan blades wherein the rotary assembly includes a rotor and the stationary assembly includes a stator of a direct current electric motor. There is also a ...

EC motors are significantly more expensive than DC motors. a DC motor and an EC motor are provided with a cooling fan module for powering dual fans. the DC ...

... fan motor adopts dc brushless motor, and its control is very simple, only provides a fixing driving voltage to direct current machine.The indoor and outdoor ...

The invention discloses a brushless DC (direct current) motor air conditioning system control circuit comprising a microcontroller U4, an indoor DC fan ...

The DC fan motor of the present invention is manufactured in the following steps: a) mounting stator core 8, AC power source connector 14, step- down circuit 15 ...

Direct Current Motor Velocity Control With Integral Retarded Controller Under Unintentional Delay. H Fan, A Ramírez, S Mondié, R Sipahi. Journal of ...

... fan (3), a charging jack (6), an air inlet hole (9), an air outlet hole (10), a direct current fan area (11) and a battery area (12). Component lists. 1 ...

CA1208272A1 Simple brushless dc fan motor with reversing field ... WO1986003629A1 Brushless motor. 06/04/1986, EP0183277A2 Brushless motor. 06/04/1986 ...

A fan assembly with an impeller and shroud for application in a vehicle cooling system. The fan is powered by an external rotor brushless direct current ...

This first rectification circuit 20 is used for this control signal is converted to one first direct current signal. This switching circuit 60 is used for ...