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Photovoltaic Solar Battery Regulator & Load Controller - Keep
drinks cool in the field without flattening your car battery. (electronic
circuit added : 08/08/08) |
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Portable Solar Battery Charger - Here's a neat little project
that uses both your ham and carpentry homebrewing skills. (No jokes about
my woodworking, now...) About a year ago, I bought a 5 Watt solar panel on
sale at Harbor Freight. It's an ICP Battery Saver Pro, and will supply
about 15 Volts DC at 335 mA in full sunlight, which is about perfect for
the 7 AH batteries I usually use for QRP portable.... [Monty Northrup] |
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Power inverter is bidirectional - 2-Aug-01 Issue of EDN If
you want to swap charge in either direction between unevenly loaded
positive and negative battery buses, you need an inverting dc transformer.
One implementation is the symmetrical flyback converter shown in Figure 1.
The circuit can generate a negative output from a positive supply or a
positive output from a negative supply.... [Design Idea by Tom Napier,
North Wales, PA] |
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Pulse Charger for reviving tired Lead Acid batteries - The
object is to get the cell voltage high enough for the sulphate to dissolve
without boiling or melting the battery. This is achieved by applying
higher voltage for shorter periods and let the battery rest for a
while….(schematic / circuit added 6/07) |
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Shunt Battery Charger Provides 1a Continuous Current - 11/20/97 EDN-Design
Ideas a shunt method is Preferable than series regulation in Solar
Powered Systems…. [Design Idea by Mitchell Lee, Linear Technology Corp, Milpitas, CA] |
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Simple capacitor charge Controller - ….(electronic schematic added
07/07) |
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Simple Car Battery Charger psimages - This very simple circuit uses a
transformer ,two diodes , a capacitor and an ammeter. To charge a battery just
connect + and terminals of circuit to corresponding terminals of
battery. When battery is not charged, ammeter reading shows 1-3
amps....(added 10/05) |
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Simple Circuit Charges Lead Acid Batteries - 02/03/97 EDN-Design Ideas
The circuit in Figure 1 charges lead-acid batteries in the conventional way A
current-limited power supply maintains a constant voltage across the battery
(2.4V/cell or so, as specified by the battery manufacturer until.... [Design Idea by
Dana Davis, Maxim Integrated Products, Sunnyvale, CA] |
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Simple Switchmode Lead-Acid Battery Charger - U-131 APPLICATION NOTE.
The charger circuit implements a two loop control. system with the current loop
operating inside the. voltage loop. During trickle-charge, bulk-charge and …(app note
6/07) |
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Single Cell Sealed Lead Acid Charger (Søren) - This charger is only meant
for single cells of the lead/acid variety. It can be used for cells with a capacity of
up to around 10Ah if R1 is changed accordingly. SLAs should be charged with a current
of from 10% to 30% of their rated capacity…. [Tony van Roon's circuit] |
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Solar Cell Phone Charger - This little gadget uses a small 3 volt solar cell
to charge a 6 volt NiCad battery pack which, in turn, may be used to charge many
models of cell phones and other portable devices. The circuit "scavenges" energy from
the solar cell by keeping it loaded near 1.5 volts (maximum energy transfer value) and
trickle charges the internal battery pack with current pulses.... [from Charles
Wentzel's web site] |
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Solar Charge Controller berniekm - Schematic only, no circuit description is
included…. |
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Solar Charger for Lead Acid Batteries - Solar lead acid charger, with
battery voltage monitor, for12V battery (added 4/02) |
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Solar charger for lead-acid batteries - ….(Circuit design added 08/08)
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Solar Panel Charge Controller/Low Voltage Disconnect Circuit - Lead acid
charger, with battery voltage monitor, power comes from solar panels (added 4/02)
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