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引用次数: 0
摘要
双相恒流(CC)刺激器用于功能电刺激应用。这些刺激器需要正、负高压(HV)源，以便将编程的CC脉冲传递给负载。例如，将振幅为50 mA的对称双相CC脉冲应用于$1 \ mathm {k}\Omega$负载，需要分别为50V和-50V的正、负电源轨。为了满足双相刺激器的高压要求，本文设计并实现了一种基于开关电感升压DC/DC变换器和开关电容电压逆变器的高压源。对于施加于$1\ mathm {k}\Omega$负载的35 mA CC脉冲，所提出的高压拓扑的性能令人满意。
Design and Implementation of a High Voltage Source for Biphasic Electrical Stimulators
Biphasic constant current (CC) stimulators are used in functional electrical stimulation applications. These stimulators require positive and negative high voltage (HV) sources in order to deliver the programmed CC pulses to load. For example, applying symmetrical biphasic CC pulses with 50 mA amplitude to a $1 \mathrm{k}\Omega$ load requires positive and negative supply rails of 50V and -50V, respectively. In this study, a HV source based on a switched inductance boost DC/DC converter and a switched capacitor voltage inverter is designed and implemented in order to satisfy the HV requirements of biphasic stimulators. Performance of the proposed HV topology is satisfactory for CC pulses of 35 mA applied to a $1\mathrm{k}\Omega$ load.
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