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Voltage control utilizing multiple PWM patterns

專利號(hào)
US10097090B1
公開日期
2018-10-09
申請(qǐng)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

FIG. 5 illustrates a structure diagram of a system in which one or more power controllers may control the voltage at a load device. In FIG. 5, device 502 is powered by power source 504. Device 502 may be any electronic device. In some embodiments device 502 may be a sensitive electronic device, such as a computer processor or ASIC. Power source 504 provides power through line 506 (which may be a wire that is, for example, embedded in a circuit board) to converters 508-514. Converters 508-514 may be DC/DC MOSFET-based converters, and may operate out of phase with each other. In other words, converters 508-514 may be configured such that, during normal (e.g., steady-state) operation, a steady-state controller would only issue a command to start pulsing to one converter at any given time. However, it is possible that, during high-transient situations, more than one of converters 508-514 (e.g., converters 510 and 514 or all of converters 508-514) may pulse simultaneously, if commanded by, for example, an oversampling controller.

權(quán)利要求

1
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