Power management system for multi-carriers transmitter
AssigneeRF Micro Devices, Inc.
InventorNadim Khlat
Life of this patent
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Abstract
A power management system for a multi-carriers transmitter is disclosed. The power management system includes a first switcher having a control input and a power output, and a second switcher having a control input and a power output. Also included is a mode switch having a mode control input, wherein the mode switch is adapted to selectively couple the power output of the first switcher to the power output of the second switcher in response to a mode control signal received by the mode control input. Further included is a control system adapted to generate the mode control signal. The control system is coupled to the mode control input of the mode switch.
Claims31
A power management system for a multi-carriers transmitter comprising:
- a first switcher having a control input and a power output;
- a second switcher having a control input and a power output;
- a mode switch having a mode control input, wherein the mode switch is adapted to selectively couple the power output of the first switcher to the power output of the second switcher in response to a mode control signal received by the mode control input;
- and
- a control system coupled to the mode control input of the mode switch, wherein the control system is adapted to generate the mode control signal.
A method for operating a power management system for a multi-carriers transmitter, the power management system including a first switcher and a second switcher, and a mode switch adapted to selectively couple and decouple a power output of the first switcher to a power output of the second switcher via a mode control signal, comprising:
- generating a mode control signal for a dual transmitter mode that opens the mode control switch so that power output from the first switcher powers a first PA and power output from the second switcher powers a second PA;
- and
- generating a mode control signal for a single transmitter mode that closes the mode control switch so that power output from the first switcher and power output from the second switcher powers only an enabled one of the first PA or the second PA.
A mobile terminal comprising:
- a first PA for amplifying a first transmitter signal;
- a second PA for amplifying a second transmitter signal;
- a power management system for a multi-carriers transmitter comprising:
- a first switcher having a control input and a power output for powering the first PA and/or second PA;
- a second switcher having a control input and a power output for powering the first PA and/or second PA;
- a mode switch having a mode control input, wherein the mode switch is adapted to selectively couple the power output of the first switcher to the power output of the second switcher in response to a mode control signal received by the mode control input;
- and
- a control system coupled to the mode control input of the mode switch, wherein the control system is adapted to generate the mode control signal.
Dependencies are inferred from the claim text.