Title:
METHOD AND APPARATUS FOR SWITCHING STAGES OF A MULTISTAGE AMPLIFIER QUICKLY BETWEEN OPERATIONAL MODES
Document Type and Number:
WIPO Patent Application WO2001095484
Kind Code:
B1
Abstract:
The stages of a multistage amplifier are quickly switched between operational modes, e.g., from a standby mode to an active mode. The delivery of a control signal to each individual stage is delayed so that the modes of the stages are switched, in a desired sequence. The final amplifier stage is isolated from the operational mode switching of the preceding stages by a buffer. For switching the multistage amplifier from the standby mode to the active mode, the stages and the buffer are turned on, in a desired sequence, beginning with the first stage. For switching the multistage amplifier from the active mode to the standby mode, the stages and the buffer are turned off, in a desired sequence, beginning with the buffer. A delay unit includes a plurality of delay units, one connected to each amplifier stage, except the final amplifier stage, and to the buffer.
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Inventors:
ROSS ROBERT (US)
Application Number:
PCT/US2001/040844
Publication Date:
July 18, 2002
Filing Date:
June 05, 2001
Export Citation:
Assignee:
MITSUBISHI ELECTRIC & ELECTRON (US)
ROSS ROBERT (US)
ROSS ROBERT (US)
International Classes:
H03F3/18; H03F3/72; (IPC1-7): H03F3/72
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