Patent ID: 6205343
Filing Date: 2001-03-20
Classification: H04M,H04W,Y02D

Abstract:
A method for reducing a peak current in a voltage converter during communications in a communication device, the method comprising the steps of:providing operating power from a power source through a voltage converter to the communication device, the voltage converter having an efficiency which varies with current provided to the communication device;selectively providing operating power through a first switch in response to a first control signal from a controller to a transmit circuit during transmit time intervals for transmitting from the communication device;concurrently removing operating power through a second switch in response to a second control signal from the controller from a display of the communication device to limit a current from the voltage converter to less than a maximum level during the transmit time intervals to reduce the peak current to maintain the voltage converter in an operating region of maximum efficiency; andmaintaining power to the voltage converter and the controller.