SNUBBER FOR A DIRECT CURRENT (DC)-DC CONVERTER
First Claim
Patent Images
1. Circuitry comprising:
- a first switching converter of a first switching power supply and adapted to receive a direct current (DC) power supply signal;
an energy storage element of the first switching power supply;
a first inductive element of the first switching power supply and coupled between the first switching converter and the energy storage element; and
a first snubber circuit of the first switching power supply and coupled across the first inductive element,wherein the first switching power supply is adapted to receive and convert the DC power supply signal to provide a first switching power supply output signal based on a setpoint.
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Abstract
Circuitry, which includes a direct current (DC)-DC converter having a first switching power supply is disclosed. The first switching power supply includes a first switching converter, an energy storage element, a first inductive element, which is coupled between the first switching converter and the energy storage element, and a first snubber circuit, which is coupled across the first inductive element. The first switching power supply receives and converts a DC power supply signal to provide a first switching power supply output signal based on a setpoint.
71 Citations
24 Claims
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1. Circuitry comprising:
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a first switching converter of a first switching power supply and adapted to receive a direct current (DC) power supply signal; an energy storage element of the first switching power supply; a first inductive element of the first switching power supply and coupled between the first switching converter and the energy storage element; and a first snubber circuit of the first switching power supply and coupled across the first inductive element, wherein the first switching power supply is adapted to receive and convert the DC power supply signal to provide a first switching power supply output signal based on a setpoint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
wherein the antenna port is configured to be coupled to an antenna.
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20. The circuitry of claim 18 further comprising:
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the first RF PA, which is a first multi-mode multi-band quadrature RF PA coupled to multi-mode multi-band alpha switching circuitry via a single alpha PA output; and the multi-mode multi-band alpha switching circuitry having; a first alpha non-linear mode output associated with a first non-linear mode RF communications band; and a plurality of alpha linear mode outputs, such that each of the plurality of alpha linear mode outputs is associated with a corresponding one of a first plurality of linear mode RF communications bands.
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21. The circuitry of claim 18 further comprising:
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the first RF PA comprising a first final stage having a first final bias input, such that bias of the first final stage is via the first final bias input; PA control circuitry; a PA-digital communications interface (DCI) coupled between a digital communications bus and the PA control circuitry; and a final stage current digital-to-analog converter (IDAC) coupled between the PA control circuitry and the first final bias input.
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22. The circuitry of claim 18 further comprising:
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the first RF PA having a first final stage and adapted to; receive and amplify a first RF input signal to provide a first RF output signal; and receive a first final bias signal to bias the first final stage; PA bias circuitry adapted to receive a bias power supply signal and provide the first final bias signal based on the bias power supply signal; and a DC-DC converter adapted to receive the DC power supply signal from a DC power supply and provide the bias power supply signal based on the DC power supply signal, such that a voltage of the bias power supply signal is greater than a voltage of the DC power supply signal.
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23. The circuitry of claim 18 further comprising:
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multi-mode multi-band radio frequency (RF) power amplification circuitry having at least a first RF input and a plurality of RF outputs, such that; the multi-mode multi-band RF power amplification circuitry comprises the first RF power amplifier (PA); configuration of the multi-mode multi-band RF power amplification circuitry associates one of the at least the first RF input with one of the plurality of RF outputs; and the configuration is associated with at least a first look-up table (LUT); PA control circuitry coupled between the multi-mode multi-band RF power amplification circuitry and a PA-digital communications interface (DCI), such that the PA control circuitry has at least the first LUT, which is associated with at least a first defined parameter set; and the PA-DCI, which is coupled to a digital communications bus.
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24. A method comprising:
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providing a first switching power supply comprising a first switching converter, a first inductive element, an energy storage element, and a first snubber circuit;
such that the first inductive element is coupled between the first switching converter and the energy storage element, and the first snubber circuit is coupled across the first inductive element; andreceiving and converting a DC power supply signal to provide a first switching power supply output signal based on a setpoint.
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Specification