Temperature compensated automatic gain control

H - Electricity – 03 – G

Patent

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Details

H03G 3/20 (2006.01) H03G 3/30 (2006.01) H04B 1/04 (2006.01)

Patent

CA 2218686

The process and apparatus of the present invention limits the output power of a radio in response to the temperature of key components of the radio. Temperature sensors (1025) measure the temperature of the components and send the temperature signals to power control circuitry (1030). The transmit power is measured (1020) at the output of the power amplifier (1015). As the temperature increases, the power control circuitry (1030) reduces the transmit power to reduce the temperature of the key components. The power is monitored so that it is not reduced below the power level required by standards.

L'invention se rapporte à un appareil et à un procédé de limitation de la puissance de sortie d'une radio en réponse à la température des composants-clés de celle-ci. Des capteurs (1025) de température mesurent la température des composants et envoient les signaux de température à des circuits de régulation de puissance (1030). La puissance de transmission est mesurée (1020) à la sortie de l'amplificateur de puissance (1015). Lorsque la température monte, les circuits de régulation de puissance (1030) réduisent la puissance de transmission pour faire baisser la température des composants-clés. La puissance est surveillée de façon à ce qu'elle ne tombe pas en dessous du niveau de puissance exigé selon les normes.

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