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Category: Power Supply Circuits / Chargers This circuit is also crossed to: Car bike Circuits Views: 3495 Rank: 0 This Charger Can't be used as a Power Supply, Without having a battery in place. The Battery MUST be Connected to get power out. Note: This Charger Features a Reverse polarity Indicator. Instructions: Before plugging this charger into the 110 volt line (or turning it on if you use a Switch), FIRST Connect this Charger to the Battery. In doing so, No Damage will occur if the battery is accidently connected in reverse, but the Reverse Polarity LED will light up. If that LED Does light, Reconnect the battery Correctly, than apply the 110 line voltage. Connecting the Line voltage, With a reversed battery connection, WILL Result in Damage. Especially if you don't use the fuse on the output, as shown in the schematic. Although Not Shown in the schematic, A suitable Line fuse would also be advisable.There is No Amp-Meter shown, But I would Definately recommend including one in either the positive or negative line, going to the battery. The Transformer, Diodes and SCR, Must be caplable of handling the output current. And Don't use a 10 amp transformer. If you expect to charge battery's at 10 amps, Allow youself a Safety margin! Use a 15 Amp transformer. Also the Diodes and SCR will Definately require a Suitable, LARGE Heat Sink! The 100 ohm trimpot on the PCB sets the Maximum Charge Voltage. To set this Correctly, attach a Fully charged battery to the output. Than using a meter to monitor the output,Set the trimpot to give an output of 14.5 volts at Very Near ZERO CURRENT. I Show a Center Tapped Transformer and two Diodes, But a Single output, 16 Volt transformer could be use with a full wave bridge rectifier. Some manufacturers recommend Charges with a Low Output, AC Ripple content. If this concerns you, You can add a large Filter Cap across the output. However this Capacitor will NOT be Protected by a reversed battery, unless it is connect before the fuse in that line. visit page.  There is No Amp-Meter shown, But I would Definately recommend including one in either the positive or negative line, going to the battery. The Transformer, Diodes and SCR, Must be caplable of handling the output current. And Don't use a 10 amp transformer. If you expect to charge battery's at 10 amps, Allow youself a Safety margin! Use a 15 Amp transformer. Also the Diodes and SCR will Definately require a Suitable, LARGE Heat Sink! The 100 ohm trimpot on the PCB sets the Maximum Charge Voltage. To set this Correctly, attach a Fully charged battery to the output. Than using a meter to monitor the output,Set the trimpot to give an output of 14.5 volts at Very Near ZERO CURRENT. I Show a Center Tapped Transformer and two Diodes, But a Single output, 16 Volt transformer could be use with a full wave bridge rectifier. Some manufacturers recommend Charges with a Low Output, AC Ripple content. If this concerns you, You can add a large Filter Cap across the output. However this Capacitor will NOT be Protected by a reversed battery, unless it is connect before the fuse in that line. http://www3.telus.net/chemelec/Projects/Car-Battery-Charger/Car-Battery-Charger.htm
Related circuits This circuit was specifically designed to recharge alkaline cells. The unusual connection of the transistor in each charging unit will cause it to oscillate, on and off, thus transferring the charge accumulated in the capacitor to the cell. The orange LED will blink for around 5 times a second... The circuit in Figure 1 can solve this problem by providing a constant 300-mV drop between VIN and VOUT at currents as high as 3A. The accuracy of the 300-mV drop is nearly as good as the accuracy of the input voltage, which in this case is approximately 1%. This circuit requires an input voltage... Operation amplifier A1 directly drives the VN64GA with the error signal to control the output voltage. Peak rectifier Dl, CI supplies error amplifier A1 and the reference zener. This extra drive voltage must exceed its source voltage by several volts for the VN64GA to pass full load current. The... The LM3647 provides a single-chip charge management solution for Nickel Cadmium, Nickel Metal Hydride and Lithium-Ion cells. The device handles the entire charging process from rejuvenating deeply discharged cells to providing a number of charge termination and maintenance options. The... The NiCd and NiMH battery charger in Figure 1 applies a battery fast-charge controller IC in a way that not only provides peak-voltage fast-charge termination--as the IC was designed to do--but also precisely regulates the charge current. The design also features maximum-temperature backup... Charge Monitor for 12V lead acid battery As per manufacturer`s data sheets, a 12V rechargeable lead-acid battery should be operated within 10. IV and 13.8V. When the battery charges higher than 13.8V it is said to be overcharged, and when it discharges below 10.IV it can be deeply discharged. A single event of overcharge or deep... Charging current is about 100+mA, which is the internally-limited maximum current of the LP2951. For those wondering, this is compatible with just about any single-cell li-ion battery since li-ion can generally accept a charging current of up to about 1c (i.e. charging current in mA equivalent to... Here`s how to make a good charger for a sealed lead-acid battery (this will NOT work with NiCad batteries) that`s faster (because it allows more current into the battery initially) and safer (because it uses lower voltage when the charging is finished). The battery can be left plugged into this...
Articles & Projects
Given below, is a very simple circuit that can be used for charging car batteries. In this circuit there is facility for monitoring the charging current and voltage.The circuit is based on the IC MC78T12ABT from Freescale.The IC is ...
Arkansas Power Electronics International Inc. (APEI), a Genesis Technology Incubator client at the University of Arkansas, has developed a prototype battery charger for Toyota's plug-in hybrid electric vehicle battery charger that is designed to be ... Graduate students at the U of A, under the d...
This charger will quickly and easily charge most any lead acid battery. The charger delivers full current until the current drawn by the battery falls to 150 mA. At this time, a lower voltage is applied to finish off and keep from over ...
Simple Car Battery Charger. http://www.electronic-circuits-diagrams.com/psimages/ This very simple circuit uses a transformer ,two diodes , a capacitor and an ammeter.To charge a battery just connect the + and - terminals of ...
Battery charger control circuit is very useful now-a-days. You need not follow on battery charging or disconnect from ac power for avoiding over charge. This circuit is used to charge battery when the battery voltage drops ...
12 VOLT CAR BATTERY CHARGER CIRCUIT. Posted on Tuesday, April 09, 2013 by tended muial. The charger charges quickly and easily on all lead-acid batteries. The charger delivers full current, decreases until the ...
Voltage regulator tutorial & USB gadget charger circuit
Car BATTERY CHARGER Electrical Circuit to FREE ENERGY GENERATOR
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Antono wrote on Jan 29, 2013
thanks my friend!
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