Power converter
First Claim
1. A power converter for providing an output voltage, the power converter comprisingan inductor;
- a charge pump circuit comprising a plurality of charge pumps, each charge pump being selectively coupled to the inductor via a coupling switch, and wherein each charge pump is operable in at least three modes, each mode being associated with a different conversion ratio; and
a controller adapted to provide a first set of control signals to control the coupling switches, wherein the first set of control signals is configured to couple each charge pump to the inductor sequentially over a period of the control signals, and a second set of control signals to operate the charge pump circuit, wherein the second set of control signals is configured to operate a charge pump coupled to the inductor with a sequence of modes.
1 Assignment
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Accused Products
Abstract
A power converter for providing an output voltage is presented. The power converter includes an inductor, a charge pump circuit and a controller. The charge pump circuit has a plurality of charge pumps; each charge pump being selectively coupled to the inductor via a coupling switch. Each charge pump is operable in at least three modes. Each mode is associated with a different conversion ratio. The controller is adapted to provide a first set of control signals to control the coupling switches; and a second set of control signals to operate the charge pump circuit. The second set of control signals is configured to operate a charge pump coupled to the inductor with a sequence of modes.
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Citations
19 Claims
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1. A power converter for providing an output voltage, the power converter comprising
an inductor; -
a charge pump circuit comprising a plurality of charge pumps, each charge pump being selectively coupled to the inductor via a coupling switch, and wherein each charge pump is operable in at least three modes, each mode being associated with a different conversion ratio; and a controller adapted to provide a first set of control signals to control the coupling switches, wherein the first set of control signals is configured to couple each charge pump to the inductor sequentially over a period of the control signals, and a second set of control signals to operate the charge pump circuit, wherein the second set of control signals is configured to operate a charge pump coupled to the inductor with a sequence of modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of providing an output voltage, the method comprising
providing an inductor; -
providing a charge pump circuit comprising a plurality of charge pumps, each charge pump being selectively coupled to the inductor via a coupling switch, and wherein each charge pump is operable in at least three modes each mode being associated with a different conversion ratio; providing a first set of control signals to control the coupling switches, wherein the first set of control signals is configured to couple each charge pump to the inductor sequentially over a period of the control signals; and providing a second set of control signals to operate the charge pump circuit, wherein the second set of control signals operates a charge pump coupled to the inductor with a sequence of modes. - View Dependent Claims (17, 18, 19)
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Specification