ELECTRONIC DEVICE WITH DATA-RATE-DEPENDENT POWER AMPLIFIER BIAS

    公开(公告)号:HK1150686A1

    公开(公告)日:2012-01-06

    申请号:HK11104537

    申请日:2011-05-09

    Applicant: APPLE INC

    Abstract: Wireless circuitry in an electronic device may contain output power amplifier circuitry for amplifying transmitted radio-frequency signals. The power amplifier circuitry may be powered using a bias voltage. The magnitude of the bias voltage can be selectively reduced to conserve power. Control circuitry can maintain a table of bias voltage settings to use under various conditions. These conditions may include required output powers as determined by link quality, transmission mode status, and required data rates. When link quality is low or when high data rates are required, the bias voltage can be maintained at a relatively high level to ensure that the power amplifier operates linearly and does not exhibit excessive noise. When link quality is high or when data rates are low as with voice calls, the bias voltage can be reduced to conserve power.

    Electronic device with data-rate-dependant power amplifier bias

    公开(公告)号:AU2010201752A1

    公开(公告)日:2010-12-02

    申请号:AU2010201752

    申请日:2010-05-03

    Applicant: APPLE INC

    Abstract: Wireless circuitry in an electronic device may contain output power amplifier circuitry for amplifying transmitted radio-frequency signals. The power amplifier circuitry may be powered using a bias voltage. The magnitude of the bias voltage can be selectively reduced to conserve power. Control circuitry can maintain a table of bias voltage settings to use under various conditions. These conditions may include required output powers as determined by link quality, transmission mode status, and required data rates. When link quality is low or when high data rates are required, the bias voltage can be maintained at a relatively high level to ensure that the power amplifier operates linearly and does not exhibit excessive noise. When link quality is high or when data rates are low as with voice calls, the bias voltage can be reduced to conserve power.

    Electronic device with data-rate-dependant power amplifier bias

    公开(公告)号:AU2010201752B2

    公开(公告)日:2012-03-15

    申请号:AU2010201752

    申请日:2010-05-03

    Applicant: APPLE INC

    Abstract: Abstract Wireless circuitry in an electronic device may contain output power amplifier circuitry for amplifying transmitted radio-frequency signals. The power amplifier circuitry may be powered using a bias voltage. The 5 magnitude of the bias voltage can be selectively reduced to conserve power. Control circuitry can maintain a table of bias voltage settings to use under various conditions. These conditions may include required output powers as determined by link quality, transmission mode status, and 10 required data rates. When link quality is low or when high data rates are required, the bias voltage can be maintained at a relatively high level to ensure that the power amplifier operates linearly and does not exhibit excessive noise. When link quality is high or when data rates are low 15 as with voice calls, the bias voltage can be reduced to conserve power. ELECTRONIC DEVICE r12 18 STORAGE AND WIRELESS PROCESSING COMMINICATIONS CIRCUITRY CIRCUITRY BATTERY INPUT AND OUTPUT DEVICES

    Electronic device with data-rate-dependant power amplifier bias

    公开(公告)号:AU2012200670B2

    公开(公告)日:2015-02-26

    申请号:AU2012200670

    申请日:2012-02-06

    Applicant: APPLE INC

    Abstract: Abstract Wireless circuitry in an electronic device may contain output power amplifier circuitry for amplifying transmitted radio-frequency signals. The power amplifier circuitry may be powered using a bias voltage. The 5 magnitude of the bias voltage can be selectively reduced to conserve power. Control circuitry can maintain a table of bias voltage settings to use under various conditions. These conditions may include required output powers as determined by link quality, transmission mode status, and 10 required data rates. When link quality is low or when high data rates are required, the bias voltage can be maintained at a relatively high level to ensure that the power amplifier operates linearly and does not exhibit excessive noise. When link quality is high or when data rates are low 15 as with voice calls, the bias voltage can be reduced to conserve power.

    Elektronische Vorrichtung mit Datenraten-Abhängiger Leistungsverstärker-Vorspannung

    公开(公告)号:DE102010020453B4

    公开(公告)日:2014-12-11

    申请号:DE102010020453

    申请日:2010-05-14

    Applicant: APPLE INC

    Abstract: Drahtlose Kommunikationsschaltung auf einer tragbaren elektronischen Vorrichtung, aufweisend: Hochfrequenz-Leistungsverstärkerschaltung, die Hochfrequenzsignale, die von der tragbaren elektronischen Vorrichtung mit einer Datenübertragungsrate übertragen werden, verstärkt; anpassbare Leistungsversorgungsschaltung, die eine anpassbare Leistungsversorgungsspannung an die Hochfrequenz-Leistungsverstärkerschaltung liefert; und Speicher-und-Verarbeitungsschaltung, welche die anpassbare Leistungsversorgungsschaltung anweist die anpassbare Leistungsversorgungsspannung an die Hochfrequenz-Leistungsverstärkerschaltung mit einem Pegel zu liefern, der mindestens teilweise basierend auf der Datenübertragungsrate ausgewählt wird, wobei die Speicher-und-Verarbeitungsschaltung einen kubischen Metrikrechner aufweist, der eine kubische Metrik für die Hochfrequenzsignale berechnet, die übertragen werden, und wobei die Speicher-und-Verarbeitungsschaltung die anpassbare Leistungsversorgungsschaltung anweist die anpassbare Leistungsversorgungsspannung, die zumindest teilweise auf der kubischen Metrik basiert, zu liefern.

    Electronic device with data-rate-dependant power amplifier bias

    公开(公告)号:AU2012200670A1

    公开(公告)日:2012-03-01

    申请号:AU2012200670

    申请日:2012-02-06

    Applicant: APPLE INC

    Abstract: Abstract Wireless circuitry in an electronic device may contain output power amplifier circuitry for amplifying transmitted radio-frequency signals. The power amplifier circuitry may be powered using a bias voltage. The 5 magnitude of the bias voltage can be selectively reduced to conserve power. Control circuitry can maintain a table of bias voltage settings to use under various conditions. These conditions may include required output powers as determined by link quality, transmission mode status, and 10 required data rates. When link quality is low or when high data rates are required, the bias voltage can be maintained at a relatively high level to ensure that the power amplifier operates linearly and does not exhibit excessive noise. When link quality is high or when data rates are low 15 as with voice calls, the bias voltage can be reduced to conserve power.

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