Battery Charger Circuits
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This circuit is for a temperature controlled constant current battery charger. It works with NICD, NIMH, and other rechargeable cells. The circuit works on the principle that most rechargeable batteries show an increase in temperature when the cells becomes.... -
The above circuit will charge any 2-cell * Li-Ion battery pack. Maximum current is about 650 milliamps. The circuit is designed for batteries of 900mah or higher. Note this circuit is NOT for Li-Metal batts (i. e. Duralites). Power source can be a 12v Gell.... -
All car batteries have required a 12v battery charger. And this is also true of Marine, RV and Power Sports batteries. The high efficiency lead acid type batteries available today require more efficient charging techniques. The most important factors in the.... -
The circuit shown here is that of the IC controlled emergency light. Its main features are: automatic switching-on of the light on mains failure and battery charger with overcharge protection. When mains is absent, relay RL2 is in deenergised state, feeding.... -
The circuit diagram of lead acid battery charger has been described here. The core part of this circuit is the IC LM 317... -
When I purchased this little charger back in 1970 I didn`t think I`d be writing about it today but here we are! Back then I was a lot younger, I had an old car for transportation, and it had an old battery. It didn`t have a lot of cranking power when the.... -
As explained elsewhere in this article set, after an equipment failure I decided to replace a combination inverter/charger unit with individual components that fill the same needs. The combination unit (the "Everything Box") is an efficient way to save costs.... -
A very simple 12v battery charger circuit can be designed using a TIP3055 power transistor to limit the current to the battery by turning off when the battery voltage reaches approx 14v or if the current rises above 2 amp. This battery charger electronic.... -
Using this circuit will give Good Charging results to a Gell Cell or SLA type Batterys as used in my Metal Detector project. And it can be modified to accomidate higher current batterys. It is Probably quite Suitable for up to a 10 A/H Rating .. -
This is 12V Car Battery Charger simple circuit. This circuit is designed to solve some problems that occurs in most car battery chargers. The problem that occur in most car battery chargers is when the charger is not turned off, the battery will overcharge,.... -
This battery chargercircuitis regulated and adjustable to make this circuit able to charge the mosto NiCAD battery. This circuit will work for single cell or multi battery cell which connected with series/parallel connection. The maximum voltage of the.... -
Alkaline Battery Charger, Battery Charger , This circuit was specifically designed to recharge alkaline cells. The unusual connection of the transistor in each charging unit will cause it to osci... -
This simple Batteries charger circuit is designed for NiMH/NiCd batteries. It need no micro-controller nor any programming. Linear Technology Corporation... -
Switch mode circuits can implement the lead acid battery charger with a more efficient. It can be constructed using bq24105 battery charger controller. The bq24105 was originally designed to charge single-, two- or three-cell Li-polymer and Li-ion battery.... -
A very simple battery charger circuit having reverse polarity indication is shown here. The circuit is based on IC L200. L200 is a five pin variable voltage voltage regulator IC. The charging circuit can be fed by the DC voltage from a bridge rectifier or.... -
The schematic diagram come from circuit: Battery Charger / Power Supply 14V / 4A with MOSFET VN64GA power supply. Go to that page to read the explanation about above power supply related circuit diagram. The following schematic is a high-performance battery.... -
The schematic diagram come from circuit: Car Lamp Charger power supply. Go to that page to read the explanation about above power supply related circuit diagram. Scheme of the Car lamp charger is shown in above. A distinctive feature of the scheme is that.... -
This is the simple and easy way to tap current from a Motor Bike battery to charge the Mobile Phone. Most of the Mobile Phone battery pack has three 1.2 vo... -
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. For increasing the life of the.... -
Here is the circuit diagram of IC Controlled Emergancy Light With Charger or simply 12V to 220V AC inverter circuit. The circuit shown here is that of the IC controlled emergency light. Its main features are: automatic switching-on of the light on mains.... -
To charge lead-acid batteries we can use this circuit that consist of a current-limited power supply and a flyback converter topology. Here is the schematic ... -
Lithium Ion charger circuit design electronic project using LM3632 controller... -
This is a Low Cost Universal Battery Charger Circuit. This circuit is used to charge NiCD-NiMH batteries and ideal for car use. This circuit transforms a mains... -
Looking for an efficient USB charger that can operate from a 12V car battery This unit functions at up to 89% efficiency and can charge USB devices at currents up to 525mA. Best of all, it won`t flatten the battery if it`s left permanently connected, as long.... -
In the ADM666A application note, you can find detailed explanation about this low cost battery charger circuit such as Maximum output voltage, Charge termination voltage calculation, monitoring the battery voltage level, maximizing the circuit efficiency,.... -
A solar cell radio used a 3V (or two 1.2V) Ni-Cad battery in it. The battery can not be removed. It use a mini jack socket for charging. Its quiet difficult... -
This is the most simple and affordable solar battery charger that the hobbyist can make. It has a few drawbacks over other similar controls, but offers nu...
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
This circuit provides an audible and visual low voltage warning for 12V battery powered devices....
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