Smart Battery Charger
https://www.electronics-lab.com/smart-battery-charger/
gfwilliams @ instructables.com has build a smart battery charger that is able to individually charge each battery , automatically discharge them and give you an idea of their capacity. The charger is controlled by an Espruino Pico and results are displayed on a Nokia 5110 LCD display. If you’re anything like me you’ll end up […]
LTC4123 – Low Power Wireless Charger
https://www.electronics-lab.com/ltc4123-low-power-wireless-charger/
Linear Technology Corporation introduces the LTC4123 to further expand its offerings in wireless battery charging. The LTC4123 combines a 30mW wireless receiver with a constant-current/constant-voltage linear charger for NiMH batteries, such as Varta’s power one ACCU plus series. An external resonant LC tank connected to the LTC4123 enables the IC to receive power wirelessly from […]
Arduino MPPT Solar Charger Shield
https://www.electronics-lab.com/arduino-mppt-solar-charger-shield/
Lukas Fässler has designed a MPPT Solar Charger Arduino Shield and document it on the link below. A Solar MPPT charger is used to convert the solar panel voltage to the optimal voltage for charging a battery in the most efficient way. This way the solar panel works on the maximum power point and thus […]
Lead Acid Battery float charger
https://www.electronics-lab.com/battery-float-charger/
Nobilis @ instructables.com has build a lead acid float charger out of an old phone wall charger: If you do not use your motorbike on the winter or your car stands for weeks — you better have a float charger connected to the battery. Otherwise you probably encounter engine starting problems, and your battery’s lifetime […]
Macbook charger teardown
https://www.electronics-lab.com/macbook-charger-teardown/
Ken Shirriff @ righto.com has a detailed teardown of a macbook charger explaining the various components used in it: Have you ever wondered what’s inside your Macbook’s charger? There’s a lot more circuitry crammed into the compact power adapter than you’d expect, including a microprocessor. This charger teardown looks at the numerous components in the charger […]
LiFePO4 charger
https://www.electronics-lab.com/lifepo4-charger/
Markus Gritsch shared his LiFePO4 charger project in the forum: Since I really like using LiFePO4 AA and AAA batteries in some of my projects, I finally gave in and built a dedicated charger for them. Previously I used a lab power supply to mimic the constant current/constant voltage charging curve, which worked also fine. […]
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 […]
Charger interface IC avoids handset overheating at fast-charge rates
https://www.electronics-lab.com/charger-interface-ic-avoids-handset-overheating-at-fast-charge-rates/
by Graham Prophet @ edn-europe.com: Power Integrations offers a charger interface IC compatible with Qualcomm’s Quick Charge 3.0 specification; PI says its CHY103D IC optimises efficiency to prevent handset overheating during high-speed charging. Added to the ChiPhy charger-interface IC family, PI saya this is the first IC for off-line AC-DC chargers compatible with the Quick Charge […]
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 […]