Buck Up Power Converter
First Claim
1. A DC-DC converter apparatus, comprising:
- a switch network comprising a first plurality of switches configured to operate in a Buck mode to generate an output voltage that is less than an input voltage, and a second plurality of switches configured to operate in an Up mode to generate said output voltage that is greater than said input voltage; and
controller circuitry configured to generate control signals to control the conduction state of said first plurality of switches and said second plurality of switches based on a variable reference signal indicative of power demands from a load coupled to said switch network.
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Accused Products
Abstract
Generally, this disclosure provides an apparatus, method and system for DC-DC conversion. The apparatus may include a switch network including a first plurality of switches configured to operate in a Buck mode to generate an output voltage that is less than an input voltage, and a second plurality of switches configured to operate in an Up mode to generate an output voltage that is greater than the input voltage. The apparatus of this example may further include controller circuitry configured to generate control signals to control the conduction state of the first plurality of switches and the second plurality of switches based on a variable reference signal indicative of power demands from a load coupled to the switch network.
13 Citations
20 Claims
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1. A DC-DC converter apparatus, comprising:
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a switch network comprising a first plurality of switches configured to operate in a Buck mode to generate an output voltage that is less than an input voltage, and a second plurality of switches configured to operate in an Up mode to generate said output voltage that is greater than said input voltage; and controller circuitry configured to generate control signals to control the conduction state of said first plurality of switches and said second plurality of switches based on a variable reference signal indicative of power demands from a load coupled to said switch network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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comparing a variable reference signal to an input voltage signal supplied to a DC-DC converter apparatus that includes a switch network comprising a first plurality of switches configured to operate in a Buck mode to generate an output voltage that is less than said input voltage, and a second plurality of switches configured to operate in an Up mode to generate said output voltage that is greater than said input voltage;
wherein said variable reference signal is indicative of power demands from a load coupled to said switch network;determining if said variable reference voltage is less than said input voltage and controlling said first plurality of switches to generate said output voltage that is less than an input voltage; and determining if said variable reference voltage is greater than said input voltage and controlling said second plurality of switches to generate said output voltage that is greater than said input voltage. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system comprising:
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a transceiver circuit configured to convert a baseband signal to a radio frequency (RF) signal; an RF power amplifier circuit coupled to said transceiver circuit and configured to amplify said RF signal; and a DC-DC converter circuit configured to provide a supply voltage to said RF power amplifier circuit based on a variable reference signal provided by said transceiver circuit, said DC-DC converter circuit comprising; a switch network comprising a first plurality of switches configured to operate in a Buck mode to generate said supply voltage that is less than an input voltage, and a second plurality of switches configured to operate in an Up mode to generate said supply voltage that is greater than said input voltage; and controller circuitry configured to generate control signals to control the conduction state of said first plurality of switches and said second plurality of switches based on said variable reference signal indicative of power demands from said RF power amplifier circuit. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification