Li-Ion Battery Charger - del90005
This circuit is built around LM3647 an Universal
Battery Charger, This Circuit is an untested
design. It is based on application hints and was
provided as an example to the user. This circuit
gives a 12V DC from mains or battery and the battery
is also charged when power resumes.
There are tools that help you check out your
concept, on paper - Power
Designer and WEBENCH
U1D monitors charge current and U1B monitors battery
voltage these values are the feedback to charge
controller U3. U1C drives Q2 to Control the
charging process by switching in PWM.
The LM7812 with a 2N6107 Current Booster Regulate
the battery and mains DC to a 12V for powering the
Types of Batteries, their chemistry and charging
methods - Battery
Charger and Rechargeable Batteries
Portable electronics have got a big boost due to
batteries like Li-Ion. Here is a decade old circuit
to charge a large battery. It can be scaled up or
down in power. It has current and voltage limit
To view the circuit below, Click the Link of PNG
or PDF and view the Circuit, PNG can be Scrolled
with Drag-Drop Left-Click-Mouse and you
could use the PDF to take a paper print for
Charger - del90005
is a Preview Image Linked to the Larger Circuit
More Related Reading :
Single chip battery charge controllers are common
today, so are Li-Ion, above circuit is more than a
Single Cell Li-Ion Battery Charger Controller
A full function constant voltage, constant current
(CVCC) lithium-ion (Li+) battery charger controller.
It provides 1% regulation accuracy over the
specified temperature range without requiring the
use of external resistors.
Switch-Mode Lithium-Ion Charger
The MAX1737 is a switch-mode lithium-ion (Li+)
battery charger that charges one to four cells. It
provides a regulated charging current and a
regulated voltage with only a ±0.8% total voltage
error at the battery terminals.
This is not necessarily specific to any one battery
type. This page is to help explain the different
types of batteries used for E-Flight as well as give
some general information.