circuit wiring: solar

Showing posts with label solar. Show all posts

Monday, December 23, 2013

Solar Powered Lithium Ion Battery Charger

The circuit below feeds a controlled current and voltage to a 3.6v lithium ion battery. The current is limited to 300ma and the voltage is limited to 4.2 volts. The circuit uses a LTC1734 IC from Linear Technology. No diode is needed between the circuit and a 6 volt solar panel. Some very nice 6 volt solar panels are available from www.plastecs.com Their SP6-200-12 cranks out about 1 watt while the SP6-300-12 can produce about 2 watts. Assuming a 6 hour sunlit day, the 2 watt panel will pump about 1.8 amp-hours into a battery.

Wednesday, September 11, 2013

Simpled Solar Powered Lithium Ion Battery Charger Circuit

The circuit below feeds a controlled current and voltage to a 3.6v lithium ion battery. The current is limited to 300ma and the voltage is limited to 4.2 volts. The circuit uses a LTC1734 IC from Linear Technology. No diode is needed between the circuit and a 6 volt solar panel. Some very nice 6 volt solar panels are available from www.plastecs.comTheir SP6-200-12 cranks out about 1 watt while the SP6-300-12 can produce about 2 watts. Assuming a 6 hour sunlit day, the 2 watt panel will pump about 1.8 amp-hours into a battery.

Saturday, April 13, 2013

Solar Powered SLA Battery Maintenance

This circuit used to be designed to ‘baby-sit’ SLA (sealed lead-acid or ‘gel’) batteries the use of freely available solar energy. SLA batteries suffer from quite high interior vitality loss which shouldn't be normally a problem except you go on vacations and disconnect them from their trickle current charger. In some instances, the absence of trickle charging present may cause SLA batteries to move utterly flat within a few weeks. The circuit proven here is intended to stop this from happening. Two 3-volt solar panels, every shunted via a diode to viapass them when no electrical energy is generated, energy a MAX762 step-up voltage converter IC.

Circuit diagram:

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Solar Powered SLA Battery Maintenance Circuit Diagram

The ‘762 is the 15-volt-out model of the most likely extra familiar MAX761 (12 V out) and is used right here to lift 6 V to 15 V.C1 and C2 are decoupling capacitors that suppress high and low frequency spurious parts produced by way of the switch-mode regulator IC. Using Schottky diode D3, power is saved in inductor L1 in the form of a magnetic container. When pin 7 of IC1 is open-circuited through the interior switching signal, the saved vitality is diverted to the 15-volt output of the circuit. The V+ (sense) enter of the MAX762, pin 8, is used to deal with the output voltage at 15 V. C4 and C5 serve to maintain the ripple on the output voltage as small as that which you could imagine. R1, LED D4 and pushbutton S1 will let you check the presence of the 15-V output voltage.

D5 and D6 scale back the 15-volts to about thirteen.6 V which is a regularly quoted nominal standby trickle charging voltage for SLA batteries. This corresponds neatly with the IC’s maximum, interiorly restricted, output current of about one hundred twenty mA. The worth of inductor L1 is not crucial — 22 µH or 47 µH will also work superb. The coil needs to be rated at 1 A although in view of the height current thru it. The switching frequency is ready 300 kHz. A advice for a pragmatic coil is sort M from the WEPD sequence equipped through Würth (www.we-online.com). Remarkably, Würth provide one-off inductors to particular person consumers. At the time of writing, it was once imaginable, under sure stipulations, to acquire patterns, or order small portions, of the MAX762 IC during the Maxim website online at www.maxim-ic.com.

Author : Myo Min

Thursday, April 11, 2013

Solar Panel Installation Complete at Fire Headquarters

Chemistry 105 -The simplified installation procedure reduces install at ion costs and enables the solar panel array to Fundamental Chemistry Classify each of the following as a strong acid, weak acid, strong base, weak base, nonmetal oxide, a metal oxide, or a salt. NaF HClO3 NH4F H2S CO2 H3PO4 H2SO4 NH3 K2O NH3 KCl SO3 HClO4 Ba(OH)2 HNO2 HNO3 NH4Br Fe(OH)2 KBr H3CCO2H Write a complete chemical equation for the reaction of the following compounds with water. HClO3 H2S CO2 H2SO4 NH3 K2O SO3 HNO2 Fe(OH)2 NH3 HClO4 HNO3 Ba(OH)2 Give a complete balanced chemical equation for the following reactions. 1) Sulfur trioxide is reacted with potassium hydroxide. 2) Solid potassium oxide is added to sulfuric acid. 3) Calcium oxide is added to hydrobromic acid. 4) Potassium bromide is reacted with silver (I) nitrate. …

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Thursday, March 28, 2013

Solar Panel Wiring Diagram Data Sheet

OmniSite OEM Solar Module kits include a solar module and the OmniSite SWIL6 prewired voltage regulator with output cable. The OEM kits are supplied with a fixed tilt, 45° side-of-pole mount. The controller features a multi-function LED indicator and fuse protection. OmniSite single crystalline, high-efficiency solar modules are manufactured to exceed industry standards providing exceptional reliability and maximum power output. A twenty-year OEM warranty reflects the superior quality and assures long product life. The aluminum side-of-pole mounts include two clamps for nominal 2.5″ through 4″ poles (OD 2.875″ through 4.5″) and includes a 5 ft. cable.WARNING: For safety reasons, before hooking up wires, cover up the solar panel cells. A black trash bag works great for this. • Hook up the wires on the Sunsaver-6 Regulator in order by number, 1 thru 6. • For best results, face the panel due south at a 45 degree angle. • The main battery should sit on the bottom of the enclosure that houses the Sunsaver-6 regulator. • It will be necessary to drill one hole in the solar regulator enclosure for wiring purposes. • DO NOT plug in the backup small internal battery that comes with your OmniSiteRTU. Use only the large, external battery supplied with the solar panel unit.

Get from here to download Solar Panel Wiring Diagram Data Sheet