Boost amplifier
AssigneeSamsung Electronics Co., Ltd.
InventorJames F. Lazar
Life of this patent
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Abstract
One embodiment provides a system comprising a single DC voltage source and a Class-D amplifier comprising at least one DC/DC converter operated by the single DC voltage source. The amplifier is configured to receive an input signal for power amplification, and generate, via the at least one DC/DC converter, a DC output voltage that approaches or exceeds a DC supply voltage from the single DC voltage source. A gain of the amplifier is a ratio of the output voltage level to the input signal. A steady-state operating point of the at least one DC/DC converter is zero output.
Claims20
A system comprising:
- a single DC voltage source;
- and
- a class-D amplifier comprising at least one DC/DC converter operated by the single DC voltage source, wherein the class-D amplifier is configured to:
- receive an input signal for power amplification;
- and
- generate, via the at least one DC/DC converter, an output voltage level that exceeds a DC supply voltage from the single DC voltage source in at least one polarity;
- wherein a gain of the class-D amplifier is a ratio of the output voltage level to the input signal;
- and
- wherein a steady-state operating point of the at least one DC/DC converter is zero output.
A class-D amplifier device comprising:
- at least one DC/DC converter operated by a single DC voltage source, wherein the at least one DC/DC converter is configured to:
- receive an input signal for power amplification;
- and
- generate an output voltage level that exceeds a DC supply voltage from the single DC voltage source in at least one polarity;
- and
- a low-pass LC filter configured to make the output voltage level low noise;
- wherein a gain of the class-D amplifier device is a ratio of the output voltage level to the input signal;
- and
- wherein a steady-state operating point of the at least one DC/DC converter is zero output.
A method comprising:
- receiving an input signal for power amplification;
- and
- generating, via at least one DC/DC converter operated by a single DC voltage source, a DC output voltage that exceeds a DC supply voltage from the single DC voltage source in at least one polarity;
- wherein a gain of the power amplification is a ratio of the output voltage level to the input signal;
- and
- wherein a steady-state operating point of the at least one DC/DC converter is zero output.
Dependencies are inferred from the claim text.