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Portable Battery Charger Using Renewable Energy Sources like Solar or Wind Project – Circuit Schematic
Portable Battery Charger Using Renewable Energy Sources like Solar or Wind Project
Every innovations starts from a simple day to day life problem like you watching IPL in TV and suddenly the current shuts off, fortunately you will find another...
SOLAR BATTERY CHARGER CIRCUIT WITH OVER CHARGE PROTECTION – Circuit Schematic
SOLAR BATTERY CHARGER CIRCUIT WITH OVER CHARGE PROTECTION
The ultimate source of energy is Sun. it is possible to generate current from sunlight using solar panels. These panels convert light energy into electrical ene...
solar cell array charger with regulator – Circuit Schematic
solar cell array charger with regulator
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particularly lm317 circuit with 12v battery charger circuit – Circuit Schematic
particularly lm317 circuit with 12v battery charger circuit
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battery charger with constant current – Circuit Schematic
battery charger with constant current
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autoconnect disconnect battery charger – Circuit Schematic
autoconnect disconnect battery charger
A simple battery charger that disconnects the battery when charge voltage reaches its nominal voltage and reconnects when battery voltage falls below a predefin...
motorcycle battery charger – Circuit Schematic
motorcycle battery charger
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solar powered lithium ion battery charger – Circuit Schematic
solar powered lithium ion battery charger
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A New Solar / Wind Charge Controller Based on the 555 Chip – Circuit Schematic
A New Solar / Wind Charge Controller Based on the 555 Chip
I had the prototype working on the breadboard, I built another unit on a piece of Radio Shack Protoboard for use in the field. It came together in only a couple...
How to Design Battery Charger Applications that Require External Microcontrollers and Related System-Level Issues – Circuit Schematic
How to Design Battery Charger Applications that Require External Microcontrollers and Related System-Level Issues
Application note on how to design linear and switch-mode (switching dc-dc converter current source) battery charger applications that require external microcont...
Harnessing Solar Power with Smart Power-Conversion Techniques – Circuit Schematic
Harnessing Solar Power with Smart Power-Conversion Techniques
Charge NiCd or NiMH batteries with solar cells. This circuit extracts the maximum power from a solar array to charge a battery stack. It employs the MAX856 boos...
Optimizing the Load-Switch Function of the DS2715 Battery-Charger IC – Circuit Schematic
Optimizing the Load-Switch Function of the DS2715 Battery-Charger IC
The DS2715 is a complete NiMH (Nickel Metal Hydride) smart-charger solution with load detection well suited to low-cost applications.....
Simple Characterization Circuit for Rechargeable AA Cells – Circuit Schematic
Simple Characterization Circuit for Rechargeable AA Cells
This characterization circuit, plus a PC and some software, accurately measures the full discharge cycle for a rechargeable AA cell. Cell capacity and output re...
Circuit Enables Single NiMH Cell to Simulate a Lithium Battery – Circuit Schematic
Circuit Enables Single NiMH Cell to Simulate a Lithium Battery
Lithium-based (Li+) batteries are becoming common in portable equipment. They have desirable characteristics, but they are often in short supply. Lead times can...
Battery Charging On Board Ship – Circuit Schematic
Battery Charging On Board Ship
Batteries are one of the energy sources available onboard vessels which are used in case of blackout and emergency situations on board a ship. These batteries a...
USB phone charger – Circuit Schematic
USB phone charger
A portable phone charger for a Siemens mobile phone. Since I don`t use that phone anymore and recent phones can usually be charged with a USB connector I built ...
Portable phone charger – Circuit Schematic
Portable phone charger
The phone is a Siemens S65. The official charger that came with the phone says 5V at 420mA. Because these things do not always actually deliver what is printed ...
Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor – Circuit Schematic
Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, o...
Versatile Micropower Battery Protector – Circuit Schematic
Versatile Micropower Battery Protector
Back in May 2002, we (Silicon Chip) presented the "Battery Guardian", a project designed specifically for protecting 12V car batteries from over-discharge. This...
Three Hour Timer – Circuit Schematic
Three Hour Timer
Manufacturers of cordless drills generally recommend a battery charging time of three hours. Once the charging time is up the battery must be disconnected from ...