H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/04 (2006.01) H03F 3/217 (2006.01)
Patent
CA 2174930
The present invention relates to a power supply modulator for a radio transmitter having apportioned input impedance and buffered switching of power modules. A series arrangement of power supply modules, conventionally disposed in a diode cascade, includes individual inductors to apportion the input impedance of the switching power supplies. The switching sequence of the power supplies is controlled by a FIFO buffer, with the sequentially adjacent power supplies being disposed physically remote so that current transients and thermal loads are more uniformly distributed.
L'invention concerne un modulateur d'alimentation de puissance pour un émetteur radio ayant une impédance d'entrée proportionnée et une commutation tamponnée des modules d'alimentation. Un agencement en série des modules d'alimentation, généralement disposés en cascade de diodes, comprend des inducteurs individuels afin de proportionner l'impédance d'entrée des alimentations de puissance de commutation. La séquence de commutation des alimentations est commandée par un tampon FIFO, les alimentations de puissance séquentiellement adjacentes étant disposées physiquement à distance de sorte que les transitoires de courant et les charges thermiques soient répartis de manière plus uniforme.
Borden Ladner Gervais Llp
Crown International Inc.
LandOfFree
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