A
Asmund Liseth
- Jan 1, 1970
- 0
does anyone have schematics for a simple constant current circuit? It's for
a battery charger...
a battery charger...
does anyone have schematics for a simple constant current circuit? It's for
a battery charger...
Asmund Liseth said:does anyone have schematics for a simple constant current circuit? It's for
a battery charger...
Asmund said:about 200mA
Asmund said:Current level?
about 200mA
[snip]Input voltage?
5v
Battery voltage?
1.2v
...Jim Thompson
Please view in a fixed-width font such as
Courier.
22
5V>---/\/\-------+
2Watt |
|
|
BATT
|
|
|
---
does anyone have schematics for a simple constant current circuit? It's for
a battery charger...
ROTFLMAO!
...Jim Thompson
Asmund said:does anyone have schematics for a simple constant current circuit? It's for
a battery charger...
about 200mA
1.2v
I got your point.
but I'm a lazy man
You guys work when I'm sleeping. That's the way I like it.
Asmund Liseth said:does anyone have schematics for a simple constant current circuit? It's for
a battery charger...
after a lot of of reading and studying, I came up with a schematic that I
think will work.
http://home.no.net/mosfet/charger/skjema1.jpg
It's a current limiter that limits the current at about 100mA, with a
control transistor (Q3), so that a microcontroller can turn the circuit on
and off.
what do you think about this?
scada said:Use a three terminal regulator, such as the LM7805. See the datasheet to
configure it for current limiting.....
Asmund Liseth said:does anyone have schematics for a simple constant current circuit? It's for
a battery charger...
Are you sure that it must be constant current - no taper allowed?Trevor Wilson said:**You can't beat an LM317 and two resistors, for simplicity and price. Look
in the National data section.
Asmund said:does anyone have schematics for a simple constant current circuit? It's for
a battery charger...