Voltage multiplier charge pump buck
First Claim
1. Direct current (DC) to DC converter circuitry comprising:
- a dual phase charge pump adapted to receive a DC input voltage and only four control signals and produce a stepped-up output voltage, wherein the magnitude of the stepped-up output voltage is based at least in part on the four control signals; and
at least one pair of multiplier phase circuits coupled to the dual phase charge pump, wherein each one of the at least one pair of multiplier phase circuits is adapted to receive the stepped-up output voltage, a cross-coupled control signal from the other multiplier phase circuit in the pair of multiplier phase circuits, and a different one of the four control signals and further multiply the stepped-up output voltage to produce a multiplied stepped-up output voltage.
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Accused Products
Abstract
DC to DC converter circuitry includes a dual phase charge pump and at least one pair of multiplier phase circuits. The dual phase charge pump is coupled to each one of the at least one pair of multiplier circuits and adapted to receive a DC input voltage and only four control signals, and produce a stepped-up output voltage. Each one of the at least one pair of multiplier phase circuits are adapted to receive the stepped-up output voltage, a cross-coupled control signal from the other multiplier phase circuit in the pair of multiplier phase circuits, and a different one of the control signals and further multiply the stepped-up output voltage to produce a multiplied stepped-up output voltage with a magnitude that is approximately three times that of the DC input voltage or greater.
297 Citations
21 Claims
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1. Direct current (DC) to DC converter circuitry comprising:
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a dual phase charge pump adapted to receive a DC input voltage and only four control signals and produce a stepped-up output voltage, wherein the magnitude of the stepped-up output voltage is based at least in part on the four control signals; and at least one pair of multiplier phase circuits coupled to the dual phase charge pump, wherein each one of the at least one pair of multiplier phase circuits is adapted to receive the stepped-up output voltage, a cross-coupled control signal from the other multiplier phase circuit in the pair of multiplier phase circuits, and a different one of the four control signals and further multiply the stepped-up output voltage to produce a multiplied stepped-up output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification