Thermal Stimulation Device Using Matrix Drive Circuitry

This paper presents a circuitry of temperature stimulation using Peltier elements for wearable devices. Peltier elements consume a large amount of current, and when multiple elements are integrated for temperature stimulation, the current consumption reaches several amperes. This is unacceptable for a wearable device, therefore a mechanism for low power consumption is needed. We propose a time-division drive and matrix circuit for Peltier devices to solve these problems. A prototype is used to demonstrate its effectiveness.