This article describes the design of a capacitor charger that can replace batteries for use in power backup circuits. The charger has a small size, adjustable current, automatic cell voltage balancing, low drain current and other features.
The provided text is an excerpt from the September 2008 issue (Volume XVII, Number 3) of Linear Technology Magazine. It serves as a marketing and technical resource rather than a user or service manual for a specific product.
The content includes a table of contents listing design features such as integrated power controllers, battery charging methods, and high-speed data converters. Additionally, the text details an article on replacing batteries with robust supercapacitors in power ride-through applications, highlighting the LTC3225 charger.
A capacitor's cycle life is quoted as greater than 500,000 cycles, whereas batteries are specified for only a few hundred cycles.
The LTC4151 provides a true power measurement between 7V and 80V.