US 11,789,508 B2
Cascaded drive-sense circuit and load network
Patrick Troy Gray, Cedar Park, TX (US); Gerald Dale Morrison, Redmond, WA (US); Daniel Keith Van Ostrand, Leander, TX (US); and Richard Stuart Seger, Jr., Belton, TX (US)
Assigned to SIGMASENSE, LLC., Wilmington, DE (US)
Filed by SIGMASENSE, LLC., Wilmington, DE (US)
Filed on Jul. 28, 2021, as Appl. No. 17/386,794.
Application 17/386,794 is a continuation of application No. 17/215,225, filed on Mar. 29, 2021.
Application 17/215,225 is a continuation of application No. 16/239,841, filed on Jan. 4, 2019, granted, now 10,996,728, issued on May 4, 2021.
Prior Publication US 2021/0357012 A1, Nov. 18, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G05F 1/10 (2006.01); G06F 1/26 (2006.01); G06F 1/32 (2019.01); G01R 19/25 (2006.01); G06F 3/041 (2006.01); G06F 1/3234 (2019.01)
CPC G05F 1/10 (2013.01) [G01R 19/2513 (2013.01); G06F 1/263 (2013.01); G06F 1/3262 (2013.01); G06F 3/0416 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cascaded drive-sense circuit (DSC) load network system, the system comprising:
a power supply operably coupled to a first drive-sense circuit (DSC), wherein, when enabled, the power supply configured to provide a first power signal to the DSC;
the first DSC operably coupled to the power supply, wherein, when enabled based on the first power signal, the first DSC configured to:
receive the first power signal from the power supply;
generate a second power signal based on a first reference signal;
provide the second power signal via a first single line that couples to a coupling of a first load and a second DSC and simultaneously sense change of the second power signal via the first single line based on a first electrical characteristic of the first load; and
generate a first digital signal that is based on the first electrical characteristic of the first load; and
the second DSC operably coupled to the first DSC, wherein, when enabled based on the second power signal, the second DSC configured to:
receive the second power signal from the first DSC;
generate a third power signal based on a second reference signal;
provide the third power signal via a second single line that couples to a second load and simultaneously sense change of the third power signal via the second single line based on a second electrical characteristic of the second load; and
generate a second digital signal that is based on the second electrical characteristic of the second load.