Variable passive components with high resolution value...

Details Variable passive components with high resolution value... Variable passive components with high resolution value...

2011-03-15

2011-03-15

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S118000, C341S120000, C341S139000, C341S142000, C341S147000

Reexamination Certificate

active

07907073

ABSTRACT:
The present system provides a method for varying the value of passive components in electronic circuits. Passive components can range from basic resistors, capacitors, and inductors to complex, structures such as transmission lines and resonant cavities. Value selection and variation can either be dynamically performed during circuit operation or as a one-time part of the manufacturing process as determined by the requirements of the specific application. A digital-to-analog converter (DAC) circuit is used to input value selection data digitally, and control value selection with value resolution dependent on the resolution of the DAC. An alternate embodiment is provided for high frequency operation.

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