Control circuitry of a microcontroller of a photovoltaic system without battery and associated method and devices
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorMark Vervaart
Life of this patent
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Abstract
A control circuit of a controller of a photovoltaic system is provided, the control circuit including an input, an output, a start unit consisting of a power dissipation circuit, a voltage regulation circuit and a comparator, a first switch having a position wherein the start unit is connected to the input and an inverse position, and a second switch having a position wherein the input and the output are not connected and an inverse position. The comparator compares the voltages of the dissipation circuit and of the regulation circuit, the comparator outputting a command voltage of the two switches on the basis of the comparison.
Claims12
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.
Dependencies are inferred from the claim text.