Automatic power level control circuit for sender receiver for wireless local networks and mobile phones has D/A converter and comparator unit with reference signal

摘要

An RF sender comprises a low frequency step with a D/A converter (113) with an input from a control voltage, an RF output and a power level control circuit (170) with a detector unit connected to the RF output. A comparator (170) receives the detector output and a reference signal and outputs a control signal to the converter. Independent claims are also included for the following: (a) a control process for the above; and (b) a control process for WLAN uses.