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Battery charger circuit diagrams
August 4, 2010
This is a small electronic switch that connects a battery to the equipment for a certain amount of time when a push-button is momentarily pressed. And we have also taken the ambient light level into... [more]
circuit from:http://www.extremecircuits.net/2010/04/battery-saver-circuit-diagram.html
August 4, 2010
A Battery-status Indicator circuit can be useful, mainly to monitor portable Test-gear instruments and similar devices. LED D1 flashes to attire the user's attention, signaling that the circuit is running, so it will not be... [more]
circuit from:http://www.extremecircuits.net/2010/01/flashing-led-battery-status-indicator.html
August 4, 2010
Protect your expensive batteries from discharge damage with this mini-sized electronic cutout switch. It uses virtually no power and can be built to suit a wide range of battery voltages. [more]
August 4, 2010
Unlike many units, this battery charger continuously charges at maximum current, tapering off only near full battery voltage. In this unit, the full load current of the supply transformer/rectifier section was 4.4A. It tapers off... [more]
circuit from:http://www.extremecircuits.net/2009/12/unlike-many-units-this-battery-charger.html
August 4, 2010
Most mobile chargers do not have current/voltage regulation or short-circuit protection. These chargers provide raw 6-12V DC for charging the battery pack. Most of the mobile phone battery packs have a rating of 3.6V, 650mAh.... [more]
circuit from:http://www.extremecircuits.net/2009/12/friendly-charger-schematic-for-mobile.html
August 4, 2010
Most off-the-shelf car battery chargers cannot not be left connected to the battery for long periods of time as over-charging and consequent battery damage will occur. This add-on circuit is placed in series with the... [more]
circuit from:http://www.extremecircuits.net/2010/05/battery-charger-regulator.html
August 4, 2010
The SLA battery is charged from the vehicle’s battery. When the engine is running, the voltage remains fairly constant, which greatly simplifies the charging circuit. If the SLA battery is fully charged, any further charging... [more]
August 4, 2010
This circuit was developed to charge the Lithium-Polymer cells used in a model aircraft. Lithium-Polymer cells are incredibly lightweight compared to Ni-cad battery packs of the same voltage and amp-hour rating. Their only drawback is... [more]
August 4, 2010
This circuit is Ideal for car use. It has ability to transform a mains adapter in to a charger . This one can be used to charge cellular phone, toys, portables, video batteries, MP3 players,... [more]
circuit from:http://www.extremecircuits.net/2009/10/low-cost-universal-battery-charger.html
August 4, 2010
Charging of the mobile phone, cellphone battery is a big problem while traveling as power supply source is not generally accessible. If you keep your cellphone switched on continuously, its battery will go flat within... [more]
circuit from:http://www.extremecircuits.net/2009/08/mobile-cellphone-battery-charger.html
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