The post presents an 6v or 12v battery charger circuit for positive earth cars which could be used for upgrading 6V positive earth cars, facilitating an external 12V battery to be used in them along with the existing 6V battery with a common positive earth body. The idea was requested by Mr. Joe Ceretti. 6V […]
Battery Charger Circuits
Parallel Battery Charger Circuits Explained
In this post I have explained two methods of connecting batteries in parallel. The first one below deals with changeover circuit using SPDT switches to charge multiple batteries individually or collectively. These may be connected in parallel using a single battery charger and through a manual SPDT changeover switch bank. The seconds design talks about […]
48V Solar Battery Charger Circuit with High/Low Cut-off
In this post I have explained a 48V solar battery charger circuit with high, low cut-off feature. The thresholds are adjustable through individual presets. The idea was requested by Mr. Deepak. Technical Specifications Hi Swagatam, Thank you for UPS relay circuit. I am trying to build it very soon. I will update you the result […]
12V, 5 Amp SMPS Battery Charger Circuit
In this article we study a simple flyback based converter design which is implemented as an SMPS 12V, 5amp battery charger power supply, without using a iron core transformer. How it Works The proposed 12V, 5 amp smps battery charger circuit employs a flyback converter topology which results in the required smps based high current, […]
3.7 V Li-Ion Battery Charger Circuit with Automatic Cut-off
In this article we study a simple 3.7V li-ion battery charger circuit with auto-cut off, which can be charged from your computer USB port or any other 5 V regulated source. Simplest 3.7V Li-ion Battery Charger with Auto Cut-off using LM393 IC If you do not wish to read the following long explanation, you can […]
Bicycle Dynamo Battery Charger Circuit
In this post I have explained a simple constant current bicycle dynamo battery charger circuit which can be used for charging a Li-Ion or Ni-Cd battery from a bicycle dynamo electricity source. The idea was requested by Mr. Saif Khan. Technical Specifications I want to charge a battery through a dynamo fitted to a cycle. […]