A ramp capacitor CAP1 has a first terminal connected to a power supply voltage VBAT. A generator circuit is connected to a second terminal of the ramp capacitor and adapted to generate a voltage ramp at the terminals of the ramp capacitor. The generator circuit includes a constant current source SCC...http://www.google.fr/patents/US6838916?utm_source=gb-gplus-shareBrevet US6838916 - Method of generating a voltage ramp at the terminals of a capacitor, and corresponding device
Method of generating a voltage ramp at the terminals of a capacitor, and ...
