Back to results
US 2010/0244780 A1Published application
Battery Recharging
OwnerJake Turner, Benjamin Gordoninventors
Life of this patent
Estimating the term…
Abstract
A method and apparatus are disclosed for charging an internal battery of a topical negative pressure (TNP) system. The method includes the steps of determining a value of current required by a TNP system, comparing the required current value with a predetermined current value and setting a resistance provided by a variable resistance element responsive to the comparison to thereby supply unrequired current as battery charging current to an internal battery of the TNP system.
Claims16
-9. (canceled)
A method of charging an internal battery of a topical negative pressure system, the method comprising:
- determining a value of current required by the system;
- comparing the determined value with a predetermined current value;
- and
- in response to the comparison, supplying current not required by the system to the internal battery.
1 more element
A topical negative pressure system comprising:
- an internal battery;
- a sensor configured to determine a value of current required by the system;
- a comparator configured to compare the determined value to a predetermined value and to generate a control signal;
- and
- a variable resistance element connected to the internal battery, wherein the element is adjusted in response to the control signal and a battery charging current is supplied to the internal battery.
2 more elements
Dependencies are inferred from the claim text.