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Voltage control utilizing multiple PWM patterns

專利號
US10097090B1
公開日期
2018-10-09
申請人
International Business Machines Corporation(US NY Armonk)
發(fā)明人
Andrew Ferencz; Todd E. Takken; Paul W. Coteus; Xin Zhang
IPC分類
G05F1/00; H02M3/158; H02M1/36; H02P9/30; H02M1/08; H02M1/00
技術(shù)領(lǐng)域
voltage,steady,controller,converter,pwm,may,cyclic,pattern,in,cycle
地域: NY NY Armonk

摘要

A power-delivery system may comprise a load device and a direct-current converter configured to deliver current to the load device when the direct-current converter is in an on state. The power-deliver system may comprise a voltage-measurement system configured to measure, at a beginning of each measurement cycle in a cyclic measurement pattern, a voltage at the load device. The power-deliver system may comprise a power controller configure to receive, at the beginning of each measurement cycle, the measurement of the voltage, and to perform, at the beginning of a control cycle in a cyclic control pattern, a voltage-control decision in response to a change in the measurement of the voltage being below a voltage-change threshold. The voltage-control decision may comprise whether to switch the state of the first direct-current converter. The cyclic control pattern may operate at a first frequency, and the measurement pattern may operate at a second frequency.

說明書

Further, this measurement may occur in several ways. For example, in some embodiments a physical voltage-measurement system may be placed between the last component in the power delivery system (e.g., a converter, inductor, or capacitor) and the processor. The power from the last component may flow through the system, at which point it is measured. This measurement may then be communicated to the voltage controller. Alternatively, a voltage controller may be connected to several leads that connect to the delivery medium of the power to the processor. For example, the leads may connect to a copper wire embedded within a circuit board. These leads may measure the voltage. Further, because the leads may be directly connected to the voltage controller, the voltage controller may automatically receive the voltage measurement. As another alternative, in some embodiments the electronic device may have the capability to measure and report the voltage of the power it is receiving. In those embodiments, the electronic device may also be configured to deliver the voltage measurement to the voltage controller.

權(quán)利要求

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