Case study: Solar reader provides proof for self-sufficient devices

This article discusses how the development of a self-sufficient solar reader solution that covered its own power requirements using mini solar cells, and by using suitable low-power components (memory, LCD, low power processor, among other low-power devices),

The idea for the solar reader was initiated by a request of the Corporate Publishing division of a large German publishing house, which was asked to develop a customer magazine on the topic of sustainability. For an exclusive share of the circulation (approx. 700 copies), the plan was to integrate an electronic table of contents in the cover of the magazine.

To reflect the idea of sustainability, the electronic table of contents was to be designed as a self-sufficient solution to work under normal room/office light conditions. In addition, there were specific requirements for its aesthetic and functional design. To retain the booklet-like look of the magazine in spite of the electronics, the design was limited to a maximum height of just 2.5 mm. Furthermore, dual use of the concept was required, which would ensure that the recipient would keep returning to the magazine in the long-term.       

To read the article, which first appeared at EE Times-Europe (Power Management), click here.

About the authors

Sven Johannsen is Business Development Manager for Sharp Microelectronics Europe; Patrick Delmer is Supplier Business Manager, Arrow Central Europe GmbH.