In this article I will be discussing a list of simple 12V battery charger circuits which are very easy and cheap by its design yet extremely accurate with its output voltage and current specs. All the designs presented here are current controlled meaning their outputs will never go beyond a predetermined fixed current level. UPDATE: […]
Archives for 2012
NiMH Battery Charger Circuit
A single state-of-the-art chip, a transistor and a few other inexpensive passive components are the only materials required for making this outstanding, self regulating, over charge controlled, automatic NiMH battery charger circuit. Let’s study the whole operation explained in the article. Main Features: How the Charger Circuit Works Referring to the diagram we see a […]
4 Simple Battery Desulfator Circuits Explored
In this article we investigate 4 simple yet powerful battery desulfator circuits, which can be used to effectively remove and prevent desulfation in lead acid batteries. The first method uses PWM pulses from a 555 PWM circuit, the second method implements an ordinary bridge rectifier for implementing a 100 Hz frequency based desulfation, the 3rd […]
6 Useful DC Cell phone Charger Circuits Explained
A DC cell phone or mobile phone charger is a device which charges a cellphone from an available DC supply source. The device converts the unregulated DC source into a constant current and constant voltage output which becomes safe for any mobile phone charging. In this article I have explained how to build DC to […]
Simple 48V Automatic Battery Charger Circuit
The proposed 48 V automatic battery charger circuit will charge any 48 V battery up to an optimal 56 V full charge level, utilizing very ordinary components. The circuit is highly accurate with its over charge cut off features. Circuit Description: As shown in the circuit diagram, the main element in the circuit is the opamp IC 741, which has been arranged as a comparator. Pin#3 […]
5 Best 6V 4Ah Automatic Battery Charger Circuits Using Relay and MOSFET
The following 5 versions of 6 volt 4 AH battery charger circuits has been designed by me and posted here in response to the request from Mr. Raja, I have explained the whole conversation. Technical Specifications “Dear sir, please post a circuit to charge 6 volt 3.5 ah lead acid battery from 12 volt battery. […]