| 摘要 |
A power sensible circuit for a power amplifier is provided to design a power unit of a transmitting circuit by using power of a power amplifying unit in a power detecting unit. A power sensible circuit for a power amplifier includes a power amplifying unit(10), a bias unit(20), and a power detecting unit(30). The power amplifying unit(10) amplifies an RF signal inputted from the outside. The bias unit(20) is connected to the power amplifying unit(10) and operates the power amplifying unit(10). The power detecting unit(30) converts and detects bias current of the bias unit(20) to the predetermined size of voltage and measures the size of an output amplifying signal of the power amplifying unit(10). |
