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:
Jan. 29, 2019
Filed:
May. 31, 2017
Quanta Computer Inc., Taoyuan, TW;
QUANTA COMPUTER INC., Taoyuan, TW;
Abstract
The present disclosure provides a system and method enabling a self-burn-in test for a power supply device (PSD) of a server system using a multi-phase scheme. The PSD comprises a power-width modulation (PWM) controller, and a plurality of power stages. Each of the plurality of power stages comprises a driver, a high-side MOSFET, and a low-side MOSFET. In one aspect of the present disclosure, upon receiving a test mode command from a controller of the server system, the PWM controller can send a PWM signal to switch a specific power stage to the On state, and send at least another PWM signal that switches other power stage(s) of the plurality of power stages to the Tri-state. During a subsequent self-burn-in test of the specific power stage, low-side MOSFET(s) of the other power stage(s) can function as a load for the specific power stage.