Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-12-31
2000-10-24
Le, Thanh Cong
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455571, 455403, 323222, 363 41, 363 97, H04Q 723, G05F 170, H02M 7155
Patent
active
061380423
ABSTRACT:
A method (300, 400), device (100, 200), phone (200) and base station (200) provide an efficient tracking power converter for variable signals. The tracking power converter includes a feedforward feedback control unit that is coupled to receive a reference signal and to receive at least one feedback signal and is used for determining an optimal control signal in accordance with a predetermined scheme, a pulse width modulation unit that is coupled to the feedforward feedback control unit and is used for modifying a duty ratio to provide a switching signal, and a power converter that is coupled to the pulse width modulation unit and to a power source and is used for providing the dynamic variable output signal.
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PhD Thesis of Pallab Midya, 1995 at University of Illinois at Champaign-Urbana, IL (not enclosed--to be sent upon receipt of a copy).
Connell Lawrence E.
Grosspietsch John
Midya Pallab
Myers Ronald Gene
Cong Le Thanh
Fekete Douglas D.
Motorola Inc.
Zewdu Meless
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