| 摘要 |
<p>The circuit has a reversible buck-type switched-mode converter (5) supplied with direct voltage, and capacitive dividing bridges (C54, C57) for connecting a first terminal (30) and a second terminal (36). A midpoint of the capacitive dividing bridges corresponds to an output of the converter and defines a third terminal (32) for providing an intermediary potential (HAVDD). Power supply voltages (V1, V2) obtained from direct voltage (VR) provided by a switched-mode converter (2) is respectively sampled between the first and third terminals and between the third and second terminals.</p> |
