CPC H02M 3/07 (2013.01) [H02M 1/00 (2013.01); H02M 3/072 (2021.05); H03F 3/181 (2013.01); H02M 1/009 (2021.05); H02M 1/0083 (2021.05); H02M 3/071 (2021.05)] | 20 Claims |
1. A battery-powered device comprising:
a charge pump circuit comprising:
an input node and a reference node for connection to an input voltage, a first pair of output nodes and a second pair of output nodes and two pairs of flying capacitor nodes;
a network of switching paths for interconnecting said nodes; and
a controller configured to control the network of switching paths when in use with two flying capacitors connected to the two pairs of flying capacitor nodes, to provide a first bipolar output voltage at the first pair of output nodes and a second bipolar output voltage at the second pair of bipolar output nodes.
|