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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

Graph 200B in FIG. 2B illustrates the timeline of graph 200A as applied to two converters (i.e., as applied to the two converters by the pulse commands from a voltage controller) in a two-converter system. Indicator line 218 represents the current delivered by the first converter, and indicator line 220 represents the current delivered by the second converter. For example, where indicator line 218 is low (e.g., as displayed immediately before time 206), the first converter is not pulsing current. However, where indicator line 218 is high (e.g., as displayed immediately after time 206), the first converter is pulsing.

權(quán)利要求

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