Battery-charger device with improved stability
First Claim
1. A circuit for controlling a battery-charger device with a closed-loop architecture, the circuit comprising:
- sensing means for sensing an operative quantity of the device and comparing the operative quantity that is sensed with a reference value;
control means for controlling the sensing means such that the sensing means alternately tracks the operative quantity during a tracking phase and holds the operative quantity during a holding phase; and
driving means for generating a regulation signal so as to regulate the operative quantity based on a result of the comparison by the sensing means,wherein the control means controls the driving means such that the driving means holds the regulation signal during at least part of each of the holding phases during which the sensing means holds the operative quantity.
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Accused Products
Abstract
A circuit is provided for controlling a battery-charger device with a closed-loop architecture. The circuit includes sensing means for sensing an operative quantity of the device, control means, and driving means. The control means alternately controls the sensing means to track the operative quantity during a tracking phase and to hold the operative quantity during a holding phase. The driving means provides a regulation signal that regulates the operative quantity based on a comparison between the operative quantity sensed by the sensing means and a reference value. The control means causes the driving means to hold the regulation signal during at least part of each of the holding phases. Also provided is a method of controlling a battery-charger device with a closed-loop architecture.
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Citations
20 Claims
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1. A circuit for controlling a battery-charger device with a closed-loop architecture, the circuit comprising:
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sensing means for sensing an operative quantity of the device and comparing the operative quantity that is sensed with a reference value; control means for controlling the sensing means such that the sensing means alternately tracks the operative quantity during a tracking phase and holds the operative quantity during a holding phase; and driving means for generating a regulation signal so as to regulate the operative quantity based on a result of the comparison by the sensing means, wherein the control means controls the driving means such that the driving means holds the regulation signal during at least part of each of the holding phases during which the sensing means holds the operative quantity. - View Dependent Claims (2, 3, 4, 5, 6, 20)
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7. A battery-charger device with a closed-loop architecture, said battery-charger device comprising:
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a sensing circuit for sensing an operative quantity of the device and comparing the operative quantity that is sensed with a reference value; a control circuit for controlling the sensing circuit such that the sensing circuit alternately tracks the operative quantity during a tracking phase and holds the operative quantity during a holding phase; a regulation circuit for regulating the operative quantity in response to a regulation signal; and a driving circuit for generating the regulation signal and providing the regulation signal to the regulation circuit so as to regulate the operative quantity based on a result of the comparison by the sensing circuit; wherein the control circuit controls the driving circuit such that the driving circuit holds the regulation signal during at least part of each of the holding phases during which the sensing circuit holds the operative quantity. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method of controlling a battery-charger device with a closed-loop architecture, said method comprising:
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sensing an operative quantity of the device so as to alternately track the operative quantity during a tracking phase and hold the operative quantity during a holding phase; comparing the operative quantity that is sensed with a reference value; generating a regulation signal so as to regulate the operative quantity based on a result of the comparison between the operative quantity that is sensed and the reference value; and holding the regulation signal during at least part of each of the holding phases during which the operative quantity is held. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification