Circuit and method for controlling the power used by a portable radiotelephone
First Claim
1. A circuit for controlling power associated with a power amplifier in a portable radiotelephone having a first communication mode and a second communication mode, the circuit comprising:
- means for supplying power to said circuit;
a power supply controller, responsive to said power supplying means and operatively coupled to said power amplifier, for adjusting said power supplied from said power supplying means and delivering said adjusted power to said power amplifier; and
a control unit, operatively coupled to said power supply controller, outputting one of a plurality of control signals for controlling voltage levels provided by said power supply controller, each of said power control signals corresponding to one of said first communication mode, said second communication mode, a strong electric field, and a weak electric field.
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Accused Products
Abstract
A circuit and method for controlling the power associated with a power amplifier in a portable radiotelephone includes a power amplifier, a power supply, a power supply controller, connected between the power supply and the above power amplifier, for adjusting the voltage applied to the power amplifier, and a control unit, connected to the power supply controller, for controlling the adjusted voltage of the power supply controller according to the transmitting power required in a region of a strong or weak electric field, and/or required in a one of dual (FM/CDMA) modes.
46 Citations
21 Claims
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1. A circuit for controlling power associated with a power amplifier in a portable radiotelephone having a first communication mode and a second communication mode, the circuit comprising:
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means for supplying power to said circuit; a power supply controller, responsive to said power supplying means and operatively coupled to said power amplifier, for adjusting said power supplied from said power supplying means and delivering said adjusted power to said power amplifier; and a control unit, operatively coupled to said power supply controller, outputting one of a plurality of control signals for controlling voltage levels provided by said power supply controller, each of said power control signals corresponding to one of said first communication mode, said second communication mode, a strong electric field, and a weak electric field. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A circuit for controlling power generated by a power amplifier in a portable radiotelephone, the circuit comprising:
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means for supplying power to said circuit; a power supply controller, responsive to said power supplying means and operatively coupled to said power amplifier, for adjusting said power supplied from said power supplying means and delivering said adjusted power to said power amplifier; and a control unit, operatively coupled to said power supply controller, for controlling voltage levels provided by said power supply controller according to one of a strong electric field region and a weak electric field region. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A circuit for controlling power associated with a power amplifier in a portable radiotelephone having a first operating mode and a second operating mode, the circuit comprising:
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means for supplying power to said circuit; a power supply controller, responsive to said power supplying means and operatively coupled to said power amplifier, for adjusting said power supplied from said power supplying means and delivering said adjusted power to said power amplifier; and a control unit, operatively coupled to said power supply controller, for controlling said adjusted power of said power supply controller according to one of said modes and electric field intensities including a strong electric field intensity and a weak electric field intensity. - View Dependent Claims (15, 16, 17)
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18. A method for controlling power used by a portable radiotelephone having a first and second mode of operation and wherein said portable radiotelephone includes means for supplying power and a power amplifier, said method comprising the steps of:
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selecting between said first mode of operation, said second mode of operation, and electric field intensities including a strong electric field intensity and a weak electric field intensity; providing a first mode setting signal for said selected first mode; providing a second mode setting signal for said selected second mode; providing a third mode setting signal for said strong electric field intensity; providing a fourth mode setting signal for said weak field electric field intensity; controlling power supplied to said power amplifier in response to said first mode setting signal so as to supply necessary power for said first mode of operation; and controlling power supplied to said power amplifier in response to said second mode setting signal so as to supply necessary power for said second mode of operation, controlling power supplied to said power amplifier in response to said third mode setting signal so as to supply necessary power for said third mode of operation, controlling power supplied to said power amplifier in response to said fourth mode setting signal so as to supply necessary power for said fourth mode of operation. - View Dependent Claims (19, 20)
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21. A method for controlling power used by a portable radiotelephone having a first and second mode of operation, and wherein said radiotelephone terminal includes means for supplying power and a power amplifier, said method comprising the steps:
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detecting a receiving electric field strength while said radiotelephone is operating; comparing said detected receiving electric field strength with a first reference strength; adjusting power supplied to said power amplifier when said detected receiving electric field strength is stronger than said first reference strength; and adjusting power supplied to said power amplifier when said detected receiving electric field strength is weaker than said first reference strength.
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Specification