Constant slope ramp circuits for sample-data circuits

Details Constant slope ramp circuits for sample-data circuits Constant slope ramp circuits for sample-data circuits

2007-08-07

2007-08-07

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

C704S213000

Reexamination Certificate

active

11488548

ABSTRACT:
A sample-data analog circuit includes a level-crossing detector. The level-crossing detector controls sampling switches to provide a precise sample of the output voltage when the level-crossing detector senses the predetermined level crossing of the input signal. A multiple segment ramp waveform generator is used in the sample-data analog circuits. The ramp waveform generator includes an amplifier, a variable current source, and a voltage detection circuit coupled to the current source to control the change in the amplitude of the current. The ramp generator produces constant slope within each segment regardless of the load condition. The sample-data analog circuit also utilizes variable bandwidths and thresholds.

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