Supply topology with power limiting feedback loop

Details Supply topology with power limiting feedback loop Supply topology with power limiting feedback loop

2011-08-09

2011-08-09

Deberadinis, Robert L. (Department: 2836)

Electrical transmission or interconnection systems

Miscellaneous systems

Rate of change responsive systems

Reexamination Certificate

active

07994660

ABSTRACT:
A supply topology comprising an AC to DC or DC to DC adapter and an electronic device with an active system, a battery, and an adapter controller implements closed-loop control of adapter output voltage to limit power consumption by the electronic device to a value related to maximum adapter power. The adapter adjusts its output voltage in response to the magnitude of an error signal representing an amount by which instantaneous power consumption exceeds adapter maximum power. An adapter controller in the electronic device sets a limit for allocating current to battery charging from the signal representing maximum adapter power, with battery charging current approaching zero as instantaneous power consumption approaches maximum adapter power.

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