Patent ID: 8238451

Claim:
A network transmitting apparatus, comprising: a chip, comprising: a detecting and controlling unit, for receiving a received signal and detecting the received signal or a state of the chip to generate a first control signal, a second control signal or a third control signal; an analog circuit; and a digital circuit; a transformer, comprising a first side and a second side, wherein the first side of the transformer is coupled to the chip; and a power regulating unit, coupled to the detecting and controlling unit and a center tap of the first side of the transformer, for receiving a voltage, generating a first regulated voltage, a second regulated voltage or a third regulated voltage according to the first control signal, the second control signal or the third control signal respectively, and respectively transmitting the first regulated voltage, the second regulated voltage or the third regulated voltage to the center tap of the first side of the transformer, the analog circuit, or the digital circuit.