The notion of power management means different things to different people. It can describe the software controlled turn-on and turn-off of different blocks of a complex system, like a cellular phone ...
When you design equipment that interfaces to a phone line, it is often desirable to be able to monitor the dc voltage on the line. This ability can be useful, for example, to determine whether a line ...
Whatever the protocol used by a mobile phone, GSM or TDMA, RF transmitter switching creates the most notorious noise for the power supply. The RF power amplifier switches on and off at a rate of 217 ...
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