Multi-staged charge-pump with staggered clock phases for providi

Details Multi-staged charge-pump with staggered clock phases for providi Multi-staged charge-pump with staggered clock phases for providi

1992-06-10

1994-04-05

Stephan, Steven L.

Electric power conversion systems

Current conversion

With voltage multiplication means

307110, H02M 725

Patent

active

053010973

ABSTRACT:
A multiple staged charge pump network with staggered clock phases for pumping a first voltage to a second voltage with high current capability. The charge pump includes multiple serial charge pumps connected in parallel, multi-phase clocks, input voltage and output voltage connectors. The multiple serial charge pumps have in each series a plurality of diode-connected n-channel MOSFETs. The first n-channel MOSFET in each series is coupled to the input voltage connector, while the rest of the n-channel MOSFETs are coupled to a pumping capacitor at their diode-connected gates. The clocks are coupled to the multiple serial charge pumps for generating a plurality of phases of clocks with each phase of the clocks being applied to the alternating n-channel MOSFETs in a series such that adjoining n-channel MOSFETs are not driven by the same phase of clock. The input voltage connector is coupled to the first n-channel MOSFET in each series of the multiple serial charge pump for providing an input voltage. The output voltage connector is coupled to the last n-channel MOSFET in each series of the multiple serial charge pump for generating an output voltage after the input voltage is switched-regulated through the multiple serial charge pump.

REFERENCES:
patent: 4839787 (1989-06-01), Kojima et al.
patent: 4933827 (1990-06-01), Olivo et al.
patent: 4962512 (1990-10-01), Kiuchi
patent: 5059815 (1991-10-01), Bill et al.
patent: 5168174 (1992-12-01), Naso et al.
patent: 5208474 (1993-05-01), Yamagata et al.
patent: 5216588 (1993-06-01), Bajwa et al.

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