CHARGE PUMP BASED POWER AMPLIFIER ENVELOPE POWER SUPPLY AND BIAS POWER SUPPLY
First Claim
1. Circuitry comprising:
- a direct current (DC)-DC converter comprising;
a power amplifier (PA) envelope power supply comprising a charge pump buck converter coupled to radio frequency (RF) PA circuitry; and
a PA bias power supply comprising a charge pump coupled to the RF PA circuitry; and
the RF PA circuitry.
4 Assignments
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Accused Products
Abstract
The present disclosure relates to a direct current (DC)-DC converter, which includes a charge pump based radio frequency (RF) power amplifier (PA) envelope power supply and a charge pump based PA bias power supply. The DC-DC converter is coupled between RF PA circuitry and a DC power supply, such as a battery. As such, the PA envelope power supply provides an envelope power supply signal to the RF PA circuitry and the PA bias power supply provides a bias power supply signal to the RF PA circuitry. Both the PA envelope power supply and the PA bias power supply receive power via a DC power supply signal from the DC power supply. The PA envelope power supply includes a charge pump buck converter and the PA bias power supply includes a charge pump.
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Citations
24 Claims
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1. Circuitry comprising:
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a direct current (DC)-DC converter comprising; a power amplifier (PA) envelope power supply comprising a charge pump buck converter coupled to radio frequency (RF) PA circuitry; and a PA bias power supply comprising a charge pump coupled to the RF PA circuitry; and the RF PA circuitry. - 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)
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24. A method comprising:
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providing a first radio frequency (RF) power amplifier (PA) having a first final stage; providing PA bias circuitry; providing a PA envelope power supply having a charge pump buck converter; providing a PA bias power supply having a charge pump; receiving an envelope power supply signal; receiving and amplifying a first RF input signal to provide a first RF output signal, such that the envelope power supply signal provides power for amplification; receiving a first final bias signal to bias the first final stage; receiving a bias power supply signal; providing the first final bias signal based on the bias power supply signal; receiving a direct current (DC) power supply signal; providing the bias power supply signal based on DC-DC conversion of the DC power supply signal using the charge pump; and providing the envelope power supply signal based on DC-DC conversion of the DC power supply signal using the charge pump buck converter.
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Specification