| CPC H02M 3/1584 (2013.01) [H02M 1/0045 (2021.05); H02M 1/08 (2013.01); H03K 3/037 (2013.01); H02M 3/07 (2013.01)] | 20 Claims |
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1. A plurality of floating charge circuits, each including:
(a) a power input configured to be coupled to one of a source of a boosted input voltage or a power output from a preceding adjacent floating charge circuit;
(b) a first reference input configured to be coupled to one of source of an input voltage or to a second reference input from the preceding adjacent floating charge circuit;
(c) a power output configured to be coupled to a first terminal of a bootstrap capacitor and to a supply terminal of a level-shifter circuit;
(d) a second reference input configured to be coupled to a second terminal of the bootstrap capacitor, to a reference terminal of the level-shifter circuit, and to a terminal of a power switch;
(e) a first sub-circuit configured to pre-charge the bootstrap capacitor; and
(f) a second sub-circuit configured to transfer charge between the bootstrap capacitor and a bootstrap capacitor coupled to a subsequent adjacent floating charge circuit.
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