Showing posts with label Portable. Show all posts
Showing posts with label Portable. Show all posts

Saturday, January 14, 2012

(4) "Wimpy" - A PWM Limited FLIP FLOP DC - AC Inverter

Circuit is almost finalized, now with fixed resistors running at 12.6V / 390 mA supplying light to (3) AC 2 Watt LED lamps, on a 50' extension cord. Just about ready to box :) See video 3 for description. Build info/schematic here: www.energeticforum.com

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Monday, December 26, 2011

BuildLog - Portable RC Power Station pt 1

London RC Project blog: www.rc-forc3.com RC Sparks forums www.rcsparks.com This is the first episode of my Portable RC Power station. This project is inspired by the need for a field charging and entertainment system to be used during RC flying or bashing trips to the park. The planned features include * 300W 220V AC inverter with wall sockets * 12V DC ~100 Ah deep cycle leisure (aka marine) battery * Stereo speaker system with 3.5mm jack * LiPo battery charger (50W, upgrade to 2x300W planned) * Separate USB power (for those weak mobile phone batteries!) * Actively ventilated compartment (case-fan) * Multimeter build thread: www.rcsparks.com Music: PipeMerchant for rc-forc3.com

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Sunday, November 20, 2011

What to Look Out For When Buying Portable Solar Power System

!±8± What to Look Out For When Buying Portable Solar Power System

Portable solar power system comes in many forms. Some use hard solar panels while others use flexible ones that you can fold up and store easily. There are also some that are water-prove and designed for any terrain. The commercial portable systems are a lot cheaper than their non-portable counterpart. Prices range between 0 to over a thousand. This article touches on what to look out for when choosing a portable solar power system.

Usually, a portable solar power system will consist of 3 components: power source, power storage device as well as the power distribution. Power source comes in the form of solar panels which may be hard panels or flexible ones. Power storage device contain batteries that hold the charge while power distribution may be an AC inverter or simply a DC outlet.

The power source you choose depends on its applications and where it is likely to be placed. If you are likely to carry it around most of the time, the weight is important. Panels that can be rolled up or folded for easy storage and transport are best for this purpose. If you are setting up a system that you want to leave at a remote site for weeks and months, a hard panel that is designed for various weather conditions and one that has higher power output to cater for continuous power supply even at night should be used.

Another consideration you need for power source is scalability. If you foresee the need to expand the power capacity of the portable solar power system, you need buy those panels that can be daisy chained for higher capacity output. Talking about capacity brings us to the next component, power storage.

Power storage devices are pretty straight forward, the higher the capacity, the heavier and bulkier the device. Some power storage devices provide either DC outlets or AC outputs only or both.

In the case of power distribution, most portable solar power systems provide 12V DC output. If you are charging or powering devices that come with car adaptors, it will make it a much simpler affair. If not, you will need an inverter in order to covert DC current to AC. Some power storage devices have AC inverters built into them so you may want to consider those depending of the devices you are powering.

George Tho is a DIY enthusiast. Read his review on a complete guide on how to assemble a portable solar power system with less than 0 even if you are a complete DIY novice.


What to Look Out For When Buying Portable Solar Power System

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Monday, August 15, 2011

California Solar Accessories - 40W iSolar Portable Folding Solar Charger Kit with Li-ion Battery, Jumper Cables, DC Charger Inverter and 40 Watt Folding Solar Panel

!±8± California Solar Accessories - 40W iSolar Portable Folding Solar Charger Kit with Li-ion Battery, Jumper Cables, DC Charger Inverter and 40 Watt Folding Solar Panel

Brand : California | Rate : | Price :
Post Date : Aug 15, 2011 07:30:12 | Usually ships in 24 hours


Powers Laptops, Cell Phones, Lights, anything with a standard plug or USB cable- All with the power of the sun!

Comes with 40W foldable solar panel (highest in class), rechargeable 8Ah Lithium-Ion battery, car jumper cables(great when stranded!), cigarette lighter adapter and power inverter

Great for Camping, Boating, Beach, RVs, Rescue, Traveling and so much more

Has advanced MPPT (Maximum Power Point Tracking) for high solar efficiency

Full 1 year warranty, even includes battery!

This portable folding solar kit is more advanced than anything on the market. It comes with a new technology called MPPT (Maximum Power Point Tracking) which makes tracking solar power more efficient and reliable. As Sunlight intensity changes, the voltage and current from the solar panel also changes. The MPPT continuously calculates and adjusts to maximize the charging power.

This kit also includes great features such as jumper cables for your car. If your battery dies, you can re-charge quickly, and get back up and running with this kit. It also includes a powerful Lithium-Ion rechargeable battery that can power your devices even after the sun goes down. You can also use the included inverter to directly power your laptops, cell phones and lights during the day.

This product is great for earthquake safety kits, disaster relief kits and for serious hikers and campers. You can use this in your RV, Boat, Home, Tent or anywhere there is sun. Never be without power again!

More Specification..!!

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