Charger external power device gain sampling

US9190854B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9190854-B2
Application numberUS-201213526768-A
CountryUS
Kind codeB2
Filing dateJun 19, 2012
Priority dateJun 15, 2012
Publication dateNov 17, 2015
Grant dateNov 17, 2015

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  2. Abstract

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Abstract

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A power management unit accurately measures and controls charging current. The power management unit may be implemented more efficiently than prior designs, leading to cost savings in the implementation of the power management unit as well as in the implementation of the device that incorporates the power management unit. The power management unit incorporates a model of an external charge control device (e.g., a transistor) and uses that model in a way that allows the power management unit to eliminate external device pins and other circuitry.

First claim

Opening claim text (preview).

What is claimed is: 1. A power management unit comprising: a switching device control output for controlling a switching device; a device power supply current measurement input; and switching device model circuitry in communication with the switching device control output and the device power supply current measurement input, the switching device model circuitry comprising memory configured to store a model parameter for the switching device; and charging logic configured to…

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What does patent US9190854B2 cover?
A power management unit accurately measures and controls charging current. The power management unit may be implemented more efficiently than prior designs, leading to cost savings in the implementation of the power management unit as well as in the implementation of the device that incorporates the power management unit. The power management unit incorporates a model of an external charge cont…
Who is the assignee on this patent?
Thompson Kerry, Mcnitt John, Rutherford Mark, and 1 more
What technology area does this patent fall under?
Primary CPC classification H02J7/44. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).