US 12,244,984 B2
Monitoring circuit for photovoltaic module
Timothy Patrick Pauletti, Dallas, TX (US); and Suheng Chen, Plano, TX (US)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Dec. 7, 2023, as Appl. No. 18/531,870.
Application 17/733,619 is a division of application No. 16/819,562, filed on Mar. 16, 2020, granted, now 11,350,186, issued on May 11, 2022.
Application 18/531,870 is a continuation of application No. 17/733,619, filed on Apr. 29, 2022, granted, now 11,877,106.
Claims priority of provisional application 62/821,054, filed on Mar. 20, 2019.
Prior Publication US 2024/0107203 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H02S 50/00 (2014.01); G01K 1/024 (2021.01); G01K 1/24 (2006.01); G01K 7/00 (2006.01); H04Q 9/00 (2006.01)
CPC H04Q 9/00 (2013.01) [G01K 1/024 (2013.01); G01K 7/00 (2013.01); H02S 50/00 (2013.01); H04Q 2209/10 (2013.01); H04Q 2209/82 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A monitoring circuit for a photovoltaic (PV) module, comprising:
a measurement conditioning circuit having a voltage sense terminal, a voltage reference terminal, and a digital measurement data output;
a microcontroller circuit, having a digital measurement data input coupled with the digital measurement data output and having, an input communication data stream input, a measurement data stream output, and a transmit select output;
a transmitter circuit having a measurement data stream input coupled with the measurement data stream output, having a transmit select input coupled with the transmit select output, and having positive and negative output communication terminals;
wherein the transmitter circuit further includes:
a crystal oscillator circuit having the modulation clock output of the transmitter circuit coupled with the modulation clock input of the microcontroller circuit; and
a digital-to-analog converter circuit having the measurement data stream input of the transmitter circuit coupled with the measurement data stream output, having a second modulation clock input coupled with the modulation clock output, and having an analog measurement output.