Title:
ENERGY STORE CIRCUIT FOR CONTROLLING ROTOR ROTATION
Document Type and Number:
WIPO Patent Application WO2004010061
Kind Code:
A3
Abstract:
A fan controller for controlling the rotation of a rotor (with a fan blade) has a current limiting element to control current flow to a capacitive storage apparatus. More specifically, the fan controller has an input for receiving an input voltage, the noted capacitive storage in electrical communication with both rotor circuitry (that controls rotor rotation) and the input, and the noted current limiting element coupled between the input and the capacitive storage. The rotor circuitry is energizable by the input voltage, while, in a similar manner, the capacitive storage is capable of charging by receiving current from the input. The current limiting element at least in part controls current flow from the input to the capacitive storage.
Inventors:
BROWN FRED A
Application Number:
PCT/US2003/021284
Publication Date:
March 18, 2004
Filing Date:
July 09, 2003
Export Citation:
Assignee:
COMAIR ROTRON INC (US)
International Classes:
G03B21/16; H05K7/20; (IPC1-7): G03B21/16
Foreign References:
| US5619076A | 1997-04-08 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 0133, no. 66 (E - 806) 15 August 1989 (1989-08-15)
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 12 31 October 1998 (1998-10-31)
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 12 31 October 1998 (1998-10-31)
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