Operating a Voltage Regulator at a Switching Frequency Selected to Reduce Spurious Signals
First Claim
1. A wireless transceiver, comprising:
- a transmit chain, the transmit chain comprising a power amplifier;
a receiver chain, the receiver chain tunable to receive wireless signals over at least one of multiple channels, wherein the multiple channels are predefined;
a voltage converter, the voltage converter providing a supply voltage to the power amplifier, the voltage converter operating at a single switching frequency;
whereinthe single switching frequency, and all harmonics of the single switching frequency fall outside of the multiple channels.
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Accused Products
Abstract
Embodiments for at least one method and apparatus of a wireless transceiver are disclosed. For one embodiment, the wireless transceiver includes a transmit chain, wherein the transmit chain includes a power amplifier. The wireless transceiver additionally includes a receiver chain that is tunable to receive wireless signals over at least one of multiple channels, wherein the multiple channels are predefined. Further, the wireless transceiver includes a voltage converter. The voltage converter provides a supply voltage to the power amplifier, and operates at a single switching frequency, wherein the single switching frequency and all harmonics of the single switching frequency fall outside of the multiple channels.
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Citations
24 Claims
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1. A wireless transceiver, comprising:
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a transmit chain, the transmit chain comprising a power amplifier; a receiver chain, the receiver chain tunable to receive wireless signals over at least one of multiple channels, wherein the multiple channels are predefined; a voltage converter, the voltage converter providing a supply voltage to the power amplifier, the voltage converter operating at a single switching frequency;
whereinthe single switching frequency, and all harmonics of the single switching frequency fall outside of the multiple channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wireless transceiver, comprising:
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a transmit chain, the transmit chain comprising a power amplifier; a receiver chain, the receiver chain tunable to receive wireless signals over at least one of multiple receive channels, wherein the multiple receive channels are predefined and at any time each of the multiple receive channels is a paired channel; a voltage converter, the voltage converter providing a supply voltage to the power amplifier, the voltage converter operating at a single switching frequency;
whereinwherein mixing products between transmitter carrier frequencies and the single switching frequency, and the harmonics of the single switching frequency, are located outside of paired receive channels. - View Dependent Claims (14, 15, 16)
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17. A method of receiving and transmitting wireless signals, comprising:
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tuning a receiver chain to receive wireless signals over at least one of multiple channels, wherein the multiple channels are predefined; amplifying transmit signals of the transmitter chain with a power amplifier; a voltage converter providing a power supply voltage to the power amplifier, the voltage converter operating at a single switching frequency; wherein the single switching frequency, and all harmonics of the single switching frequency fall outside of the multiple channels.
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18. A voltage regulator, comprising:
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switch elements connected between an input voltage and an output voltage; means for generating the output voltage through the use of a energy storage element, and through controlled closing and opening of the switch elements at a single switching frequency; means for generating a power amplifier supply voltage for a wireless device based upon the output voltage;
whereinthe single switching frequency, and all harmonics of the single switching frequency fall outside of multiple predefined receive channels of the wireless device. - View Dependent Claims (19, 20, 21)
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- 22. The voltage regulator 19, further comprising mixing products between the single switching frequency and carrier frequencies of a transceiver falling outside of paired receive channels.
Specification