Mobile Phone and iPod Battery Charger Circuit project with schematic and explanation

Charge your iPod without connecting it to a computer!

Using the USB port on your computer to charge your player’s batteries is not always practical. What if you do not have a computer available at the time or if you do not want to power up a computer just for charging? Or what if you are traveling? Chargers for Mobile Phones iPods and MP3 players are available but they are expensive and you need separate models for charging at home and in the car.

This charger can be used virtually anywhere. While we call the unit a charger, it really is nothing more than a 5V supply that has a USB outlet. The actual charging circuit is incorporated within the iPOD or MP3 player itself, which only requires a 5V supply. As well as charging, this supply can run USB-powered accessories such as reading lights, fans and chargers, particularly for mobile phones.

The supply is housed in a small plastic case with a DC input socket at one end and a USB type "A" outlet at the other end, for connecting to Mobile Phone, an iPod or MP3 player when charging. A LED shows when power is available at the USB socket. Maximum current output is 660mA, more than adequate to run any USB-powered accessory.

Pictures, PCB and Circuit Diagram:

 
Front View Of Mobile Phone and iPod Battery Charger Circuit

 
 Bottom View Of Mobile Phone and iPod Battery Charger Circuit

PCB Layout Of Mobile Phone and iPod Battery Charger Circuit

 
 Mobile Phone and iPod Battery Charger Circuit Diagram

Parts	Description
P1	1K
R1	1R-0.5W
R2	1R-0.5W
R3	1R-0.5W
R4	1K
R5	560R
R6	10R-0.5W
R7	470R
C1	470uF-25V
C2	100nF-63V
C3	470pF
C4	100uF-25V
D1	1N5404
D2	1N4001
D3	1N5819
D4	5.1V-1W Zener Diode
D5	5mm. Red LED
L1	220uH
S1	USB 'A' Type Socket
SW1	On/Off Switch
IC1	MC34063A

Specifications: 
Output voltage ----------------------5V 
Output current ---------------------660mA maximum for 5V out 
Input voltage range ------------------9.5V to 15V DC 
Input current requirement ----------500mA for 9V in, 350mA for >12V input 
Input current with output shorted--- 120mA at 9V in, 80mA at 15V in 
Output ripple ------------------------14mV (from no load to 660mA) 
Load regulation ----------------------25mV (from no load to 660mA) 
Line regulation ----------------------20mV change at full load from 9 to 18V input 
No load input current ----------------20mA 

(The specification for the computer USB 2.0 port requires the USB port to deliver up to 500mA at an output voltage between 5.25V and 4.375V).

The circuit is based around an MC34063 switch mode regulator. This has high efficiency so that there is very little heat produced inside the box, even when delivering its maximum output current. The circuit is more complicated than if we used a 7805 3-terminal regulator but since the input voltage could be 15V DC or more, the voltage dissipation in such a regulator could be 5W or more at 500mA. and 5W is far too much for a 7805, even with quite a large heatsink. Credit for this circuit goes to SiliconChip, A wonderful electronics magazine.

LM741 Using Dry Cell Battery Charger Circuit Circuit project explanation

This is Dry Cell Battery Charger Circuit. That can use charger battery get that about 12 hour. When apply to power supply 9 volt the equipment that fix in the circuit use for size battery AA. If use the size C or D should devalue of Resistor RX down be 68ohm and should not lead battery come to serial while voltage in cell battery lower 1.6V.
LM741 Using Dry Cell Battery Charger Circuit Diagram:

 

The Comparator Circuit with (IC741) control Gate output from Pulse Oscillator at use the integrated circuit CMOS 4011 change Transistor that do infront charger battery until voltage tall 1.6V Comparator Circuit more make LED Flasher warn know for protect Charger battery expire. The next time is if friends have Dry Cell Battery that use be finished already , don’t abandon , try apply new again yes.

AUTOMATIC ENTRY BATTERY CHARGER 14-15 VOLT AC COURANTMAX 3 AMPERES

AUTOMATIC ENTRY BATTERY CHARGER 14-15 VOLT AC COURANTMAX 3 AMPERES

SCHEMA AUTOMATIC BATTERY CHARGER 14-15 VOLT AC CURRENT MAX 3A:

The assembly can achieve an excellent quality battery charger with which it is possible to recharge batteries from 1 to 2 volts car, and dry batteries of the systems used in alarm. Operation is completely automatic since, connect a battery, it will take office only if it is discharged, while it will automatically disconnect from the battery to be charged. The device is powered by a transformer whose secondary is 14-15 volts with a current of 3 Amperes minimum.

The adjustment trimmer TR1 is to have effectuede way, the output of the battery charger, a voltage of about 14.4 volts with no load. Distributable maximum current of 3 Amperes, it is therefore advised NOT to try recharging batteries with a capacity superieurede36Ah. Perfect use of this device is that of supplying a battery charger for alarm system with buffer battery.
During insertion, we must be very careful with connections to the battery respecting polarity AC.
For mounting of components , you must carefully follow the settlement scheme.

Circuit prints, AUTOMATIC ENTRY BATTERY CHARGER 14-15 VOLT AC COURANTMAX 3 AMPERES

LIST OF ELECTRONIC COMPONENTS: All resistors are of 1/4 watt unless statedotherwise. RL- 470 Ohms R2 = 10 ohms R3 = 270 Ohm TR1 = 10 ohms trimmer. Cl = 1000uF25Velec. DZ1 = 5.1 volts lWzener. T1 = 2N2218 T2 = 2N3055-BDW21C 1C1 = UA741 PT1 = KBL04 / 01 1 Support 8-pin. 1 Heat sink pourTl. 1 Heat sink pourT2.

SCHEMA BATTERY CHARGER Ni-Cd BATTERY AUTO circuit schematic with explanation

SCHEMA BATTERY CHARGER Ni-Cd BATTERY AUTO

SCHEMA BATTERY CHARGER Ni-Cd:

It is a device that can charge any battery Ni-Cd between 4.8 and 1 4.4 Volts with a conventional car battery 1 2 volts. The charging current is constant it can be chosen from the values ​​1 50 20 mA by the selector S.

This device is very useful for lovers of model making, the video operator, those who use small reception issuance of appliances and all those who use Ni-Cd batteries and need to recharge or network voltage n ' is not available.

LIST OF ELECTRONIC COMPONENTS: All resistors are of 1/4 watt unless statedotherwise. R = 220Kohms R2 = 1 Kohm R3 = lKohm R4 = 120 ohm 1 watt R5 = 68 ohm 1 watt CI = 10 nF ceramic. C2 = 1000uF16Velec. C3 = 1000yF25Velec. D1 = 1N4001 ... 7 D2-1N4001 ... 7 D3-1N4001 ... 7 T1 = BDX53 T2 = BDX53 IC1 4047 = IC2 = 7805 1 selector 3 Heat Sinks 1 Support 14 pin

CMOS IC 4011 based easy dry cell charger

The dry cell charger circuit can be fully charged about 12 hours.When used with a 9 volt supply,the equipments in the circuit for the AA type cell.When using the C and D type cell, should reduce the value of the resistance Rx to be 68 ohms.In charge of the cell, you should not be charged to the same series, may cause cell damage is fully charged.
If the cell voltage is below 1.6 volt,The compared circuit to leave the square wave oscillator by the CMOS gate,then the transistor made a charge until the cell voltage is 1.6 volt.The comparison circuit will cut the charging LED blinks, notice prevents over-charging.

S:eleccircuit.com

Solar charging kit 60 watt

I’m do looking to backup energy for my laptop, The 60 Watt Solar Charging Kit is need for me very much, it low cost but Good quality,saving money very much.

Example review
I can run my laptop all day, as well as recharge the cell phones and Wifi remotes. My husband can also run his laptop. If we only get on the laptops after work, we can run them well into the night. I’ve had to switch to grid power a couple of times if I’ve used my laptop all day, but I’ve never had to switch over if I’ve only used it during the evening. (This doesn’t count the few rainy days we’ve had. Yes, once in a while it rains in Phoenix.)

This is not the most efficient solar panel set, but it’s very good for starting out and learning about solar power. It’s inexpensive enough to set up and charge all your rechargeable stuff whenever you need it, as long as you live in a fairly sunny area. [...] by C.Bayne.

S:eleccircuit.com

short circuit secure charger for mobile

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, 650 mAh. For increasing the life of the battery, slow charging at low current is advisable. Six to ten hours of charging at 150-200mA current is a suitable option. This will prevent heating up of the battery and extend its life. The circuit described here provides around 180mA current at 5.6V and protects the mobile phone from unexpected voltage fluctuations that develop on the mains line. So the charger can be left �on� over night to replenish the battery charge. The circuit protects the mobile phone as well as the charger by immediately disconnecting the output when it senses a voltage surge or a short circuit in the battery pack or connector. It can be called a �middle man� between the existing charger and the mobile phone. It has features like voltage and current regulation, over-current protection, and high- and low-voltage cut-off. An added speciality of the circuit is that it incorporates a short delay of ten seconds to switch on when mains resumes following a power failure. This protects the mobile phone from instant voltage spikes. The circuit is designed for use in conjunction with a 12V, 500mA adaptor (battery eliminator). Op-amp IC CA3130 is used as a voltage comparator. It is a BiMOS operational amplifier with MOSFET input and CMOS output. Inbuilt gate-protected p-channel MOSFETs are used in the input to provide very high input impedance. The output voltage can swing to either positive or negative (here, ground) side. The inverting input (pin 2) of IC1 is provided with a variable voltage obtained through the wiper of potmeter VR1. The non-inverting input (pin 3) of IC1 is connected to 12V stabilised DC voltage developed across zener ZD1. This makes the output of IC1 high.

After a power resumption, capacitor C1 provides delay of a few seconds to charge to a potential higher than of inverting pin 2 of CA3130, thus the output of IC1 goes high only after the delay. In the case of a heavy power line surge, zener diode ZD1 (12V, 1W) will breakdown and short pin 3 of IC1 to ground and the output of IC1 drops to ground level. The output of IC1 is fed to the base of npn Darlingtontransistor BD677 (T2) for charging the battery. Transistor T2 conducts only when the output of IC1 is high. During conduction the emitter voltage of T2 is around 10V, whichpasses through R6 to restrict the charging current to around 180 mA. Zener diode ZD2 regulates the charging voltage to around 5.6V. When a short-circuit occurs at the battery terminal, resistor R8 senses the over-current, allowing transistor T1 to conduct and light up LED1. Glowing of LED2 indicates the charging mode, while LED1 indicates shortcircuit or over-current status. The value of resistor R8 is important to get the desired current level to operate the cut-off. With the given value of R8 (3.3 ohms), it is 350 mA. Charging current can also be changed by increasing or decreasing the value of R7 using the �I=V/R� rule. Construct the circuit on a common PCB and house in a small plastic case. Connect the circuit between the output lines of the charger and the input pins of the mobile phone with correct polarity.
S:electronicsuite.com

IC Regulator LM 317 based Solar Panel Charger( 6V/4,5Ah Suite)

This is Solar Panel Charger 6V/4,5Ah Suite using IC Regulator LM 317 that is used to charge Lead Acid or Ni-Cd batteries using the solar energy power. The circuit harvests solar energy to charge a 6 volt 4.5 Ah rechargeable battery for various applications. The charger has Voltage and Current regulation and Over voltage cut off facilities.

The circuit uses a 12 volt solar panel and a variable voltage regulator IC LM 317. The solar panel consists of solar cells each rated at 1.2 volts. 12 volt DC is available from the panel to charge the battery. Charging current passes through D1 to the voltage regulator IC LM 317. By adjusting its Adjust pin, output voltage and current can be regulated.

VR is placed between the adjust pin and ground to provide an output voltage of 9 volts to the battery. Resistor R3 Restrict the charging current and diode D2 prevents discharge of current from the battery. Transistor T1 and Zener diode ZD act as a cut off switch when the battery is full. Normally T1 is off and battery gets charging current.

When the terminal voltage of the battery rises above 6.8 volts, Zener conducts and provides base current to T1. It then turns on grounding the output of LM 317 to stop charging.

S:electronicsuite.com

NiMH Battery Charger Here is a simple battery charger for the Nickel Metal Hydride battery that requires current regulated charging. The charger pr

Here is a simple battery charger for the Nickel Metal Hydride battery that requires current regulated charging. The charger provides 140 mA current for quick charging of the battery.Power supply section consists of a 0-18 volt AC 1 Ampere step-down transformer, a full wave bridge rectifier comprising D1 through D4 and the smoothing capacitor C1. Current regulation is achieved by the action of R1,R2 and the Epitaxial Darlington PNP transistor TIP 127. Resistor R1 keeps the charging current to 140 milli amperes. LED and resistor R2 plays an important role to control the base current of T1 and thus its output.

Around 2.6 volts drop develops across the LED which appears at the base of T1. Emitter – base junction of T1 drops around 1.2 volts. So 2.6 – 1.2 volts gives 1.40 volts. So the current passing through R1 will be 1.40 V / 10 = 0.14 Amps or 140 Milli Amps. The LED act as the charging status indicator. LED lights only if the battery is connected to the output of circuit and the input voltage is normal.

Read more: http://electroschematics.com/6073/nimh-battery-charger/#ixzz1HL7dzmz5

12V Auto Battery Charger

Car Charger

This auto battery charger uses no transformer, rectifier, or filter capacitors on the schematic. No reason why you cannot add these. 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 charging. When the battery is fully charged, the circuit switches off and lights a LED, telling you that the cycle has finished.

Auto Battery Charger Schematic

A heatsink will be needed for this auto battery charger ( U1.)

Auto Battery Charger Parts List
Resistor
R1 500 Ohm 1/4 W
R2 3K 1/4 W
R3 1K 1/4 W
R4 15 Ohm 1/4 W
R5 230 Ohm 1/4 W
R6 15K 1/4 W
R7 0.2 Ohm 10 W
Capacitor
C1 0.1uF 25V Ceramic
C2 1uF 25V Electrolytic
C3 1000pF 25V Ceramic
Diode
D1 1N457
Transistor
Q1 2N2905 PNP
Regulator
U1 LM350
Op Amp
U2 LM301A
S1 Normally Open Push Button Switch
MISC Wire, Board, Heatsink For U1, Case, Binding Posts or Alligator Clips For Output

To use the circuit, hook it up to a power supply/plug it in. Then, connect the battery to be charged to the output terminals. All you have to do now is push S1 (the “Start” switch), and wait for the circuit to finish.

C1 6800uF 25V Electrolytic Capacitor
T1 3A 15V Transformer
BR1 5A 50V Bridge Rectifier 10A 50V Bridge Rectifier
S1 5A SPST Switch
F1 4A 250V Fuse

If you want to use the auto battery charger without having to provide an external power supply, use above circuit. The first time you use the circuit, you should check up on it every once and a while to make sure that it is working properly and the battery is not being over charged.

12 V Car Battery Charger on Amazon

Camera Battery Charger for Train Mounted This camera battery charger circuit will keep the battery for a train mounted camera charged and will shut t

This camera battery charger circuit will keep the battery for a train mounted camera charged and will shut the camera off after a few seconds when power is no longer applied to the track.

This camera battery charger circuit is designed for DCC systems and the battery is essentially used as a capacitor as it is not allowed to become discharged.

The battery also controls the voltage to the camera as any current passed through R1 that is not needed by the camera is shunted through the battery. This is an inefficient but cheap way to control the voltage. (Circuits Without Pages Of Their Own)

Source: Train Mounted Camera Battery Charger

12V Battery Charger for Sealed Lead Acid [Deep Cycle SLA Battery] This battery charger is for 12V Seales Lead Acid (SLA) battery. It is actually a hal

This battery charger is for 12V Seales Lead Acid (SLA) battery. It is actually a half-wave rectifier. It only charges the battery on every half cycle. The plug pack doesn't like this as it leaves residual flux in the core of the transformer and causes it to overheat.

There are a number of points we need to cover about the care and use of Sealed Lead Acid batteries.
Firstly, these batteries must be charged, discharged and stored very carefully.
We normally think batteries can be stored for months (if not years) and they will be available for immediate use.

This is not the case with SLA batteries.
If you store a NEW, full charged SLA battery for 6 months or more, you will find it may be fully discharged.
You may also find you cannot charge it!! It may be worthless.
That's how delicate SLA batteries are.

They must be charged on a regular basis to prevent them discharging to a very low voltage level.
If the terminal voltage of a SLA battery is allowed to go below 8v, a process called SULPHATION starts to cover the surface of the plates and prevents the battery being re-charged. The internal resistance of the battery increases and it becomes useless. See products Sealed Lead Acid Battery Charger on Amazon

Parts List of SLA Battery Charger

2 - 1R8 0.5watt resistors
1 - 150R 0.25 watt resistor
1 - 180R
1 - 560R
1 - 1k5
3 - 2k2
1 - 3k3
1 - 4k7
1 - 8k2
1 - 1k mini trim pot

1 - 1n ceramic
2 - 47u 25v electrolytics

1 - 5mm red LED

4 - 1N4148 signal diodes
1 - 10v 0.25watt zener
1 - BC 547 transistor
2 - BC557 transistors
1 - MCR100-6 SCR
1 - 1m red lead
1 - 1m black lead
2 - alligator clips
1 - 2m very fine solder

1 - SLA Battery Charger PCB

Also required:
1 - 12v AC transformer (500mA AC)
1 - power lead
1 - case

Available on Amazon Sealed Lead-Acid Battery Charger
Source : Battery Charger for 12v SLA (Sealed Lead-Acid) Batteries

Battery charger By LM2575

1 A current sources for battery charger applications based on the LM2575–ADJ switching step–down converter and the MC33341 regulator control circuit, pdf file

Auto Battery Charger 12V This auto battery charger uses no transformer, rectifier, or filter capacitors on the schematic. No reason why you cannot a

Auto Battery Charger 12V

This auto battery charger uses no transformer, rectifier, or filter capacitors on the schematic. No reason why you cannot add these. 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 charging. When the battery is fully charged, the circuit switches off and lights a LED, telling you that the cycle has finished.

Auto Battery Charger Schematic

A heatsink will be needed for this auto battery charger ( U1.)

Auto Battery Charger Parts List
Resistor
R1 500 Ohm 1/4 W
R2 3K 1/4 W
R3 1K 1/4 W
R4 15 Ohm 1/4 W
R5 230 Ohm 1/4 W
R6 15K 1/4 W
R7 0.2 Ohm 10 W
Capacitor
C1 0.1uF 25V Ceramic
C2 1uF 25V Electrolytic
C3 1000pF 25V Ceramic
Diode
D1 1N457
Transistor
Q1 2N2905 PNP
Regulator
U1 LM350
Op Amp
U2 LM301A
S1 Normally Open Push Button Switch
MISC Wire, Board, Heatsink For U1, Case, Binding Posts or Alligator Clips For Output

To use the circuit, hook it up to a power supply/plug it in. Then, connect the battery to be charged to the output terminals. All you have to do now is push S1 (the “Start” switch), and wait for the circuit to finish.

C1 6800uF 25V Electrolytic Capacitor
T1 3A 15V Transformer
BR1 5A 50V Bridge Rectifier 10A 50V Bridge Rectifier
S1 5A SPST Switch
F1 4A 250V Fuse

If you want to use the auto battery charger without having to provide an external power supply, use above circuit. The first time you use the circuit, you should check up on it every once and a while to make sure that it is working properly and the battery is not being over charged.

12 V Car Battery Charger on Amazon

Source: Car Battery Charger

Auto Battery Charger 12V This auto battery charger uses no transformer, rectifier, or filter capacitors on the schematic. No reason why you cannot a

Auto Battery Charger 12V

This auto battery charger uses no transformer, rectifier, or filter capacitors on the schematic. No reason why you cannot add these. 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 charging. When the battery is fully charged, the circuit switches off and lights a LED, telling you that the cycle has finished.

Auto Battery Charger Schematic

A heatsink will be needed for this auto battery charger ( U1.)

Auto Battery Charger Parts List
Resistor
R1 500 Ohm 1/4 W
R2 3K 1/4 W
R3 1K 1/4 W
R4 15 Ohm 1/4 W
R5 230 Ohm 1/4 W
R6 15K 1/4 W
R7 0.2 Ohm 10 W
Capacitor
C1 0.1uF 25V Ceramic
C2 1uF 25V Electrolytic
C3 1000pF 25V Ceramic
Diode
D1 1N457
Transistor
Q1 2N2905 PNP
Regulator
U1 LM350
Op Amp
U2 LM301A
S1 Normally Open Push Button Switch
MISC Wire, Board, Heatsink For U1, Case, Binding Posts or Alligator Clips For Output

To use the circuit, hook it up to a power supply/plug it in. Then, connect the battery to be charged to the output terminals. All you have to do now is push S1 (the “Start” switch), and wait for the circuit to finish.

C1 6800uF 25V Electrolytic Capacitor
T1 3A 15V Transformer
BR1 5A 50V Bridge Rectifier 10A 50V Bridge Rectifier
S1 5A SPST Switch
F1 4A 250V Fuse

If you want to use the auto battery charger without having to provide an external power supply, use above circuit. The first time you use the circuit, you should check up on it every once and a while to make sure that it is working properly and the battery is not being over charged.

12 V Car Battery Charger on Amazon

Source: Car Battery Charger

Auto Battery Charger 12V

Auto Battery Charger 12V

This auto battery charger uses no transformer, rectifier, or filter capacitors on the schematic. No reason why you cannot add these. 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 charging. When the battery is fully charged, the circuit switches off and lights a LED, telling you that the cycle has finished.

Auto Battery Charger Schematic

A heatsink will be needed for this auto battery charger ( U1.)

Auto Battery Charger Parts List
Resistor
R1 500 Ohm 1/4 W
R2 3K 1/4 W
R3 1K 1/4 W
R4 15 Ohm 1/4 W
R5 230 Ohm 1/4 W
R6 15K 1/4 W
R7 0.2 Ohm 10 W
Capacitor
C1 0.1uF 25V Ceramic
C2 1uF 25V Electrolytic
C3 1000pF 25V Ceramic
Diode
D1 1N457
Transistor
Q1 2N2905 PNP
Regulator
U1 LM350
Op Amp
U2 LM301A
S1 Normally Open Push Button Switch
MISC Wire, Board, Heatsink For U1, Case, Binding Posts or Alligator Clips For Output

To use the circuit, hook it up to a power supply/plug it in. Then, connect the battery to be charged to the output terminals. All you have to do now is push S1 (the “Start” switch), and wait for the circuit to finish.

C1 6800uF 25V Electrolytic Capacitor
T1 3A 15V Transformer
BR1 5A 50V Bridge Rectifier 10A 50V Bridge Rectifier
S1 5A SPST Switch
F1 4A 250V Fuse

If you want to use the auto battery charger without having to provide an external power supply, use above circuit. The first time you use the circuit, you should check up on it every once and a while to make sure that it is working properly and the battery is not being over charged.

Battery Charger Circuit Using Ammeter VU

This is a design of the circuit diagram of a simple and straight forward battery charger that can be used to charge all type of 12V rechargeable batteries including car batteries. This circuit is completed with ammeter VU for displaying the current. This is the figure of the circuit.


The circuit is nothing but a 12V DC power supply with an ammeter for monitoring the charging current. The two diodes forms a centre tapped full wave rectifier. The capacitor filters the rectifier output to produce a clean 12V out put. At initial stages of charging the ammeter will read about 1 to 3 amperes. As the battery is slowly charged the current slowly decreases. For indicate when the battery is fully charged, the ammeter reading will be zero. For attention, it is always be careful to connect the charger to the battery in correct polarity. The polarity is connecting between positive to positive and negative to negative.