Patent ID: 8116828

Claim:
A current consumption controlling apparatus of a portable terminal which supports a plurality of communication systems, the apparatus comprising: a first transceiver for outputting a signal indicative of a transmit burst time of a first communication system mode supported by the first transceiver to a second transceiver, and adjusting a gain of a power amplifier by receiving a signal indicative of a transmit burst time of a second communication system mode from the second transceiver; and the second transceiver for outputting the signal indicative of the transmit burst time of the second communication system mode to the first transceiver, and adjusting the gain of the power amplifier by receiving the signal indicative of the transmit burst time of the first communication system mode, wherein the first transceiver and the second transceiver each comprises: a modem for outputting the signal indicative of the transmit burst time of the corresponding communication system mode supported by one of the corresponding first and second transceiver to a voltage divider of another of the corresponding first and second transceiver, being a counterpart transceiver, and outputting a signal indicative of the gain of the power amplifier to the corresponding voltage divider; and the voltage divider for adjusting the gain signal of the power amplifier input from the corresponding modem according to the transmit burst time signal input from the modem of the counterpart transceiver.