US 12,484,337 B2
Control circuitry of a microcontroller of a photovoltaic system without battery and associated method and devices
Mark Vervaart, Grenoble (FR)
Assigned to Commissariat à l'énergie atomique et aux énergies alternatives, Paris (FR)
Filed by Commissariat à l'énergie atomique et aux énergies alternatives, Paris (FR)
Filed on Dec. 19, 2023, as Appl. No. 18/545,714.
Claims priority of application No. 22 13992 (FR), filed on Dec. 20, 2022.
Prior Publication US 2024/0213378 A1, Jun. 27, 2024
Int. Cl. H10F 77/00 (2025.01); G01R 31/317 (2006.01); G05F 1/56 (2006.01); H10F 19/90 (2025.01)
CPC H10F 77/955 (2025.01) [G01R 31/31703 (2013.01); G05F 1/562 (2013.01); H10F 19/90 (2025.01)] 12 Claims
OG exemplary drawing
 
1. A control circuit of a controller of a photovoltaic system comprising a photovoltaic module, the control circuit including:
an input adapted to be connected to the photovoltaic module,
an output adapted to be connected to the controller,
a dissipation circuit for dissipating a power received on the input of the control circuit,
a voltage regulation circuit received on the input of the control circuit,
a comparator, wherein a set of the dissipation circuit, the voltage regulation circuit and the comparator form a start unit,
a first switch having a first position wherein the start unit is connected to the input of the control circuit and a second position wherein the start unit is not connected to the input of the control circuit, the first position and the second position of the first switch being commendable by a first command voltage, and
a second switch having a first position wherein the input and the output of the control circuit are not connected and a second position wherein the input and the output of the control circuit are connected the first position and the second position of the second switch being commendable by a second command voltage,
the comparator being adapted to compare a voltage at a first comparison point of the dissipation circuit with a voltage at a second comparison point of the voltage regulation circuit, the comparator being adapted to output the first command voltage of the first switch or the second command voltage of the second switch depending on a comparison between the voltage at the first comparison point and the voltage at the second comparison point,
the comparator is adapted to output the second command voltage imposing that a position of the second switch is the second position when the voltage at the second comparison point of the voltage regulation circuit is lower than the voltage at the first comparison point of the dissipation circuit, and
the comparator is adapted to output the first command voltage requiring that a position of the first switch is the second position when the voltage at the second comparison point of the voltage regulation circuit is lower than the voltage at the first comparison point of the dissipation circuit.