Current ripple control by derivation and switching
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorLars HANSSON
Life of this patent
Estimating the term…
Abstract
A method and circuitry for switching current to a load. The circuitry for supplying a current to a load comprises a sensor configured to sense the current supplied via a sensor input and to produce an output signal representing a time derivative of the sensed current, and a switch configured to switch the current, a switching frequency of the switch being controlled by said output signal representing a time derivative of the sense current, thereby producing a switched output current to the load.
Claims15
A circuitry for supplying a current to a load, comprising:
- a sensor configured to sense the current supplied via a sensor input and to produce an output signal representing a time derivative of the sensed current;
- and
- a switch configured to switch the current, a switching frequency of the switch being controlled by said output signal representing a time derivative of the sense current, thereby producing a switched current to the load.
A method for supplying a current to a load, comprising:
- receiving the current;
- sensing the received current;
- producing a signal representing a time derivative of the sensed current;
- switching the received current, a switching frequency of the switching being controlled by the signal representing a time derivative of the sense current, thereby producing a switched current to the load.
(canceled)
Dependencies are inferred from the claim text.