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    • 6. 发明申请
    • BIOMEDICAL ELECTRO-STIMULATOR
    • 生物电动刺激器
    • WO2009050647A2
    • 2009-04-23
    • PCT/IB2008054221
    • 2008-10-14
    • KONINKL PHILIPS ELECTRONICS NVCANTATORE EUGENIO
    • CANTATORE EUGENIO
    • A61N1/378
    • A power efficient biomedical electro-stimulator circuit BSC is provided. The circuit BSC includes a charging circuit arranged to control charging of a storage capacitor C based on electric energy from an energy source ES, e.g. a battery. The charging circuit includes an energy converter EC that applies a charging current I to the storage capacitor C, this charging current I being substantially constant over a charging period T, thereby providing a power efficient charging. In preferred embodiments, the energy converter EC is an inductive energy converter, e.g. a DC-DC converter, with a control circuit serving to provide an almost constant charging current during the charging period. In another embodiment, the energy converter EC is an energy converter that charges the storage capacitor via a series resonator, e.g. a series connection of an inductor and a capacitor. The proposed biomedical electro-stimulator circuit is advantageous for devices such as pacemakers, and neural stimulation etc. which can benefit of increased battery lifetime due to an efficient charging scheme.
    • 提供功率高效的生物医学电刺激器电路BSC。 电路BSC包括充电电路,该充电电路被布置为基于来自例如能量源ES的电能来控制对存储电容器C的充电。 一个电池。 充电电路包括能量转换器EC,该能量转换器EC将充电电流I施加到存储电容器C,该充电电流I在充电周期T内基本恒定,从而提供功率高效的充电。 在优选实施例中,能量转换器EC是电感能量转换器,例如, 具有控制电路的DC-DC转换器用于在充电期间提供几乎恒定的充电电流。 在另一个实施例中,能量转换器EC是能量转换器,其通过串联谐振器例如电容器对存储电容器充电。 串联电感和电容。 所提出的生物医学电刺激器电路对诸如起搏器和神经刺激等的设备是有利的,由于有效的充电方案,这可以增加电池寿命。