Patent ID: 6885174
Filing Date: 2005-04-26
Classification: G05F,G06F,H02M

Abstract:
1. A system for providing a regulated voltage to supply a load, said system comprising: a source for providing a substantially constant current approximately corresponding to the maximum current likely to be drawn by the load; and a regulation device receiving, on an input terminal, the constant current and providing, on an output terminal, the regulated load supply voltage, at least one capacitor being coupled to the output terminal; said regulation device including; a first circuit comprising a hysteresis comparator receiving the load supply voltage and a reference voltage, and a second circuit comprising at least one semiconductor device having one main terminal coupled to said input terminal and a control terminal coupled and controlled from the output of said hysteresis comparator so that said at least one semiconductor device is biased in the substantially linear portion of its current-voltage characteristic.