The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2018
Filed:
Mar. 16, 2010
Daniel Humphrey, Houston, TX (US);
Mohamed Amin Bemat, Cypress, TX (US);
Reynaldo P. Domingo, Spring, TX (US);
Reginald A. Whyte, Jr., Houston, TX (US);
Daniel Humphrey, Houston, TX (US);
Mohamed Amin Bemat, Cypress, TX (US);
Reynaldo P. Domingo, Spring, TX (US);
Reginald A. Whyte, Jr., Houston, TX (US);
Hewlett Packard Enterprise Development LP, Houston, TX (US);
Abstract
One embodiment provides a system for controlling one or more pulse width modulated (PWM) fans. The system can include a control system configured to provide a voltage control signal corresponding to a DC output voltage for the one or more PWM fans. A variable DC voltage source is configured to supply the DC output voltage to the plurality of fans at one of at least two different DC voltages based on the voltage control signal. The DC output voltage from the variable DC voltage source is separate from a PWM control signal that is also supplied to the PWM fans.