Window-integrated charge-mode digital-to-analog converter for arbitrary waveform generator

Patent · Tue Oct 01 04:00:00 EDT 2024

OSTI ID:2542677

Li, Shaorui

A digital-to-analog converter circuit that creates an analog waveform from an input digital waveform. Operating the circuit comprises using the input digital waveform to 1) operate a charge control switch to set a charge time period, 2) operate a discharge control switch to set a discharge time period, 3) set a charge current magnitude using a charge gain, and 4) set a discharge current magnitude using a discharge gain. A charge source electrically charges a load capacitor during the charge time period (i.e., the charge mode). A discharge source electrically discharges the load capacitor during the discharge time period (i.e., the discharge mode). A circuit output transmits the analog waveform defined by the charge mode and the discharge mode. A charge current magnitude greater than the discharge current magnitude produces an upward-sloping analog waveform. A charge current magnitude less than the discharge current magnitude produces a downward-sloping analog waveform.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• Assignee: Fermi Research Alliance, LLC (Batavia, IL)
• Patent Number(s): 12,107,600
• Application Number: 17/409,780
• OSTI ID: 2542677
• Country of Publication: United States
• Language: English