AmpStrike – Battery Powered Bench Power Supply
https://www.electronics-lab.com/ampstrike-battery-powered-bench-power-supply/
This is a small bench power supply that is powered by two lithium-ion batteries. The project was inspired by Dave Jones from EEVblog but the design is completely mine. The voltage range is 0-20V regulated in 10mV steps and maximum current is 1A with current limit set in 1mA steps. The power supply runs on […]
Lithium-Ion Battery Warms Up, Operates In Subzero Temperatures
https://www.electronics-lab.com/lithium-ion-battery-warms-up-operates-in-subzero-temperatures/
Charles Q. Choi @ spectrum.ieee.org discuss about a new type of li-ion battery able to work in low temperatures. A new “all-climate” lithium-ion battery can rapidly heat itself to overcome freezing temperatures with little sacrifice in energy storage capacity and power, researchers say. This advance might enable applications for which high-performance batteries are needed in […]
One step closer to the ‘ultimate battery’
https://www.electronics-lab.com/one-step-closer-to-the-ultimate-battery/
Erica Torres @ edn.com discuss about lithium-air batteries that looks promising for future use. Although scientists are still working toward replacing lithium-ion (Li-ion) batteries with lithium-air (Li-air), or lithium-oxygen, batteries, researchers at the University of Cambridge have developed a lab-based demonstrator of such a battery. It is safe to say we still have another decade before […]
Power Management Solutions: Battery Chargers
https://www.electronics-lab.com/power-management-solutions-battery-chargers/
Maurizio @ dev.emcelettronica.com writes: Out of all portable devices, the most numerous are the mobile phones (Figure 1). Most of them feature Li-ion or Li-polymer accumulators and Freescale has a broad range of charger ICs dedicated to supporting all the phases of a complete recharge cycle. Generally speaking the charging of a mobile phone is […]
Arduino Battery Shield
https://www.electronics-lab.com/arduino-battery-shield/
This instructable is about making battery shield for Arduino. Arduino Battery Shield – [Link]
IC monitors multicell battery packs
https://www.electronics-lab.com/ic-monitors-multicell-battery-packs/
by Susan Nordyk @ edn.com: The ISL94203 battery-pack monitor IC from Intersil monitors, protects, and cell-balances three- to eight-cell rechargeable battery packs, supporting Li-ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries. Its internal state machine has five preprogrammed stages that accurately control each cell of a battery pack to extend operating life. In addition to […]
Get a constant +5V output by switching between a +5V input and a single-cell LI+ rechargeable cell
https://www.electronics-lab.com/get-a-constant-5v-output-by-switching-between-a-5v-input-and-a-single-cell-li-rechargeable-cell/
App note from Maxim Integrated on providing smooth power from two sources. Link here (PDF) Design provides a simple method for maintaining an uninterrupted +5V even while switching between the external +5V supply and a rechargeable single-cell Li+ battery. Get a constant +5V output by switching between a +5V input and a single-cell LI+ rechargeable cell […]
Buck battery charger handles multiple chemistries
https://www.electronics-lab.com/buck-battery-charger-handles-multiple-chemistries/
by Susan Nordyk @ edn.com: The LTC4015 synchronous step-down battery charger controller from Linear Technology offers charge current of up to 20 A, multiple-chemistry operation, and onboard digital telemetry. The controller transfers power from a variety of input sources, such as wall adapters and solar panels, to a Li-Ion polymer, LiFePO4, or lead-acid battery stack with […]