公开(公告)号：US20220326745A1

公开(公告)日：2022-10-13

申请号：US17810021

申请日：2022-06-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： David F. Heinrich ,  Arthur Volkmann ,  Rachel Pollock

IPC: G06F1/20 ,  G05B11/28 ,  G05B23/02 ,  G06F11/30

Abstract: An apparatus can include a fan including a control pin. The fan may receive a pulse width modulated (PWM) signal at the control pin. The fan may further control a speed of the fan based on a duty cycle of the PWM signal when the PWM signal is in a first range and, responsive to the duty cycle of the PWM signal being in a second range, transmit information corresponding to the fan to an external controller.

公开(公告)号：US20200089290A1

公开(公告)日：2020-03-19

申请号：US16135307

申请日：2018-09-19

Applicant: Hewlett Packard Enterprise Development LP

Inventor： David F. Heinrich ,  Arthur Volkmann ,  Rachel Pollock

IPC: G06F1/20 ,  G05B11/28 ,  G06F11/30 ,  G05B23/02

Abstract: An apparatus can include a fan including a control pin. The fan may receive a pulse width modulated (PWM) signal at the control pin. The fan may further control a speed of the fan based on a duty cycle of the PWM signal when the PWM signal is in a first range and, responsive to the duty cycle of the PWM signal being in a second range, transmit information corresponding to the fan to an external controller.

公开(公告)号：US20180073514A1

公开(公告)日：2018-03-15

申请号：US15264889

申请日：2016-09-14

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Kai Zhang ,  Rachel Pollock ,  Sze Hau Loh

IPC: F04D27/00 ,  F04D25/16 ,  F04D25/08 ,  F04D29/32

CPC classification number: F04D27/008 ,  F04D25/08 ,  F04D25/166 ,  F04D29/329 ,  F05B2240/20 ,  F05D2260/902

Abstract: In various examples, a device comprises a fan. The fan comprises a rotor hub, and a linear solenoid. The linear solenoid comprises a magnetic coil, a pin, and a spring surrounding the pin to bias the pin. Responsive to the fan losing power, the solenoid to: cause the pin to contact the rotor hub to cause the rotor hub to stop spinning.

公开(公告)号：US20180017064A1

公开(公告)日：2018-01-18

申请号：US15210192

申请日：2016-07-14

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Rachel Pollock ,  Sze Hau Loh ,  Richard A. Bargerhuff ,  Giang Tran ,  Kai Zhang

IPC: F04D27/00 ,  F04D29/26 ,  F04D25/06

CPC classification number: F04D27/001 ,  F05D2230/72

Abstract: In various examples, a fan comprises a fan rotor, logic, and a component electrically coupled to the fan rotor to control operation of the fan rotor. The logic may determine that the component has failed. Responsive to determining that the component has failed, the logic to cause a backup component to apply power to the fan rotor, wherein applying the power causes blades of the fan to reduce spinning.