US 2002/0057580 A1Published application

Process and device for supplying electrical energy to an electronic circuit and to a power-demanding facility controlled by this circuit

OwnerGilles Morey, Thierry Arnolinventors

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Abstract

Process and device for supplying an electronic circuit and for supplying a power-demanding facility controlled by this circuit, with electrical energy originating from at least two batteries, the electronic circuit comprising battery switching elements adapted to place these batteries in parallel or in series, the facility being subjected to controlled operating phases. The batteries are connected in series or in parallel as a function of their state with respect to two thresholds and the energy-demanding facility is controlled so as to operate according to two modes as a function of the state of the batteries.

Claims8

Dependent claims

Process for supplying an electronic circuit and for supplying a power-demanding facility controlled by this circuit, with electrical energy originating from at least two batteries, the said electronic circuit comprising battery switching means adapted to place these batteries in parallel or in series, the said facility being subjected to controlled operating phases, characterized in that it consists:

in fixing, for each battery (2, 3), a high threshold (S1) and a low threshold (S2) of voltage determining a first state when the voltage is above the high threshold, a second state when the voltage lies between the high threshold and the low threshold and a third state when the voltage is below the low threshold;
in detecting the voltage of the batteries and in comparing these voltages with the said thresholds;
in fixing at least two operating states of the said facility (4) wherein this facility is capable of generating at least one high level (PSH) and one low level (PSB) of power;
that it consists, outside of the operating phases of the said facility (4):
in placing the batteries in parallel (MP) when the voltage of the batteries is detected to be above their high threshold or when the voltage of one of the batteries is detected to be below its low threshold;
and in placing the batteries in series (MS) when the voltage across the terminals of one of the batteries lies between its corresponding high (S1) and low (S2) thresholds and when the voltage across the terminals of the other battery is above its corresponding low threshold (S2);
and that it consists, during the operating phases of the said facility:
in placing the batteries in series (MS) if the voltage of each of the batteries is detected to be above its low threshold (S2) or in placing the batteries in parallel (MP) when the voltage of one of the batteries is below its low threshold (S2);
and in placing the facility (4) in its operating state at its aforesaid high level (PSH) when the voltage of each of the batteries is detected to be above their high threshold (S1) or in placing the facility in its operating state at its aforesaid low level (FSB) when the voltage of at least one of the batteries is detected to be below its high threshold (S1).

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Dependencies are inferred from the claim text.

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Abstract

in fixing, for each battery (2, 3), a high threshold (S1) and a low threshold (S2) of voltage determining a first state when the voltage is above the high threshold, a second state when the voltage lies between the high threshold and the low threshold and a third state when the voltage is below the low threshold;
in detecting the voltage of the batteries and in comparing these voltages with the said thresholds;
in fixing at least two operating states of the said facility (4) wherein this facility is capable of generating at least one high level (PSH) and one low level (PSB) of power;
that it consists, outside of the operating phases of the said facility (4):
in placing the batteries in parallel (MP) when the voltage of the batteries is detected to be above their high threshold or when the voltage of one of the batteries is detected to be below its low threshold;
and in placing the batteries in series (MS) when the voltage across the terminals of one of the batteries lies between its corresponding high (S1) and low (S2) thresholds and when the voltage across the terminals of the other battery is above its corresponding low threshold (S2);
and that it consists, during the operating phases of the said facility:
in placing the batteries in series (MS) if the voltage of each of the batteries is detected to be above its low threshold (S2) or in placing the batteries in parallel (MP) when the voltage of one of the batteries is below its low threshold (S2);
and in placing the facility (4) in its operating state at its aforesaid high level (PSH) when the voltage of each of the batteries is detected to be above their high threshold (S1) or in placing the facility in its operating state at its aforesaid low level (FSB) when the voltage of at least one of the batteries is detected to be below its high threshold (S1).

6 more elements