| US 7,498,781 B2 | ||
| Methods and systems for disturbance rejection in DC-to-DC converters | ||
| John C. Canfield, Newmarket, N.H. (US); and Paul W. Latham, Lee, N.H. (US) | ||
| Assigned to L&L Engineering LLC, Lee, N.H. (US) | ||
| Filed on Apr. 02, 2007, as Appl. No. 11/695,264. | ||
| Claims priority of provisional application 60/790247, filed on Apr. 07, 2006. | ||
| Prior Publication US 2007/0236200 A1, Oct. 11, 2007 | ||
| Int. Cl. G05F 1/565 (2006.01); G05F 1/575 (2006.01) | ||
| U.S. Cl. 323—280 [323/285] | 35 Claims |
| 1. A compensated switching power converter comprising:
a switching power converter comprising:
a circuit comprising at least two reactive components configured to provide an output voltage and capable of being switched
from a first output voltage state to a second output voltage state and providing a load current to a load,
a switching component capable of switching said circuit between said first output voltage state and said second output voltage
state,
a driver component capable of receiving an input control signal comprising a duty cycle signal and of driving the switching
component in order to cause switching between said first output voltage state and said second output voltage state in response
to set input control signal;
a sensing component capable of providing a sensed output indicative of the load current; and
a compensating component capable of receiving said sensed output and of providing a duty cycle adjustment signal, said duty
cycle adjustment signal being combined with said duty cycle signal; said duty cycle adjustment signal being capable of substantially
compensating for load current variations; said duty cycle adjustment signal being obtained from signals indicative of present
and past load current variations.
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