Coded data generation or conversion – Analog to or from digital conversion – Multiplex
Patent
1996-07-31
1997-12-30
Gaffin, Jeffrey A.
Coded data generation or conversion
Analog to or from digital conversion
Multiplex
341144, H03M 100
Patent
active
057035857
ABSTRACT:
A high-speed multiplexing technique employs diode bridges to multiplex the outputs of two or more digital-to-analog converters (DACs) together. Like prior art techniques, the diode bridges isolate the DAC outputs from one another and are activated by forward biasing the bridges, one at a time in a staggered-phase, sequential fashion with sequenced biasing currents, to effectively connect the DACs, one at a time to an output signal. Unlike prior art techniques, however, the low capacitance diodes are inserted in series with the sequenced biasing current driving each diode bridge, one on each side of the bridge. The low capacitance diodes are oriented to pass current in the direction of forward bias of the diode bridges. Voltage mode switching is employed to limit the effect of parasitic capacitances on output amplitude. One embodiment is directed to a pair of back-to-back diode bridges driven by a single transformer secondary winding. Other embodiments are directed to transformerless and multiple-transformer implementations.
REFERENCES:
patent: 4124845 (1978-11-01), Huntsinger et al.
patent: 4150256 (1979-04-01), Bernet et al.
patent: 5442379 (1995-08-01), Bruce et al.
Gilbert Carl
Lamm Joe
Gaffin Jeffrey A.
Kost Jason L. W.
Tech-Source Inc.
LandOfFree
High-speed multiplexed digital-to -analog converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High-speed multiplexed digital-to -analog converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-speed multiplexed digital-to -analog converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-206753