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US 8,427,033 B2Granted
Domestic appliance comprising a piezoelectric pump provided with a simplified power supply circuit
AssigneeSeb S.A.
InventorsFranck Mandica, Serge Cubizolles, Olivier Lavillat, Bertrand Couet
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Abstract
The invention relates to a circuit (20) for supplying power to a piezoelectric pump (10) from the electric network (25). According to the invention, the circuit (20) supplies power to the pump (10) directly at the frequency of the electric network (25), and said circuit (20) comprises at least means for limiting the current absorbed by the pump (10) arranged in series with said pump (10).
Claims10
A power supply circuit for supplying power to a piezoelectric pump, from a domestic AC power network, directly at the frequency of the network, said circuit comprising:
- means connected in series with the pump for limiting the current absorbed by the pump;
- means to limit the voltage at the terminals of the pump, arranged in parallel with the pump;
- and
- at least one first resistance connected in parallel with the pump, wherein said means for limiting the current absorbed by the pump are separate from said first resistance.
1 more element
Dependencies are inferred from the claim text.