POWER SUPPLIES

Registre Brevet USPTO
Numéro d'application 17787825
Statut En instance
Date de dépôt 2019-12-20
Date de la première publication 2023-01-26
Date de publication 2023-01-26
Propriétaire HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventeur(s) Cheng, Chao-Wen

Abrégé

Structures and functions of power supplies are disclosed. In an example, a power supply includes a power factor correction circuit and a bypass circuit. The bypass circuit bypasses the power factor correction circuit when the switch of the bypass circuit is on in response to a predetermined range of input power of the power supply. The bypass circuit also includes a delay circuit to delay the activation of the bypass circuits in response to the predetermined range of input power of the power supply for a predetermined time period.

Classes IPC  ?

  • H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
  • H02M 1/12 - Arrangements for reducing harmonics from ac input or output