Aqueveque Pablo, Saavedra Francisco, Pino Esteban
Annu Int Conf IEEE Eng Med Biol Soc. 2017 Jul;2017:3848-3851. doi: 10.1109/EMBC.2017.8037696.
Power efficiency is critical for electrical stimulators. Battery life of wearable stimulators and wireless power transmission in implanted systems are common limiting factors. Boost DC/DC converters are typically needed to increase the supply voltage of the output stage. Traditionally, boost DC/DC converters are used with fast control to regulate the supply voltage of the output. However, since stimulators are acting as current sources, such voltage regulation is not needed. Banking on this, this paper presents a DC/DC conversion strategy aiming to increase power efficiency. It compares, in terms of efficiency, the traditional use of boost converters to two alternatives that could be implemented in future hardware designs.
功率效率对于电刺激器至关重要。可穿戴刺激器的电池寿命以及植入系统中的无线电力传输是常见的限制因素。通常需要升压型DC/DC转换器来提高输出级的电源电压。传统上，升压型DC/DC转换器用于快速控制以调节输出的电源电压。然而，由于刺激器充当电流源，因此不需要这种电压调节。基于此，本文提出了一种旨在提高功率效率的DC/DC转换策略。它在效率方面将升压转换器的传统用法与未来硬件设计中可以实现的两种替代方案进行了比较。
