7Ah Sealed Lead Acid Battery 7Ah Sealed lead acid battery is a very popular battery which people use in most places like fans, LEDs etc. The reason behind popularity of 7Ah battery is due to its medium size and medium Ah rating. By medium means, its size and ratings lies between the small batteries and …
How to make Automatic Charger for a 7Ah Battery Using Atmega Read More »
Ni-MH Battery Charger circuit 4 AA batteries can be charged in the circuit is more complex, but in general attiny26 microcontroller circuits BD140 transistors and a few passive components consist of batteries connected to… Electronics Projects, Ni-MH Battery Charger Circuit Atmel ATtiny26 “avr project, battery charger circuit, microcontroller projects, “ Ni-MH Battery Charger circuit 4 AA batteries can be …
Battery charging circuit atmel attiny26lp based on switched PWM works as a fast charge is doing the switching circuit 100UH coil and irf5305 irl3803 MOSFETs used charging current of 300 mA, 600 mA ……Electronics Projects, NiMH NiCd Battery Fast PWM Charger Circuit Atmel AVR “avr project, battery charger circuit, microcontroller projects, “ Battery charging circuit atmel attiny26lp based …
NIMH NICD BATTERY FAST PWM CHARGER CIRCUIT ATMEL AVR Read More »
The circuit what you are about to see is a smart battery charger based on ATMEGA8A with auto cut off.Different parameters are shown via a LCD during different charge states.Also the circuit will make sound via a buzzer upon charge completion. I built the …
Microcontroller Based Smart Battery Charger Using Atmega Read More »
Intro My cheap plug in hot glue gun died and looking for a replacement I found this: the Bosch Glue Pen What does it do? it’s a hot glue gun for 7 mm glue sticks that warms up in 15 seconds. Charges via micro USB. Much better than my old one that needed ~5 minutes …
Ultra-Low Power LiPo Charger via Energy Harvesting from a Solar Cell What is it? This is a small (0.5 x 0.5 inch) breakout board for Texas Instrument’s BQ25504 Ultra Low Power Boost Converter with Battery Management for Energy Harvesting Applications. From the datasheet: “The bq25504 device is the first of a new family of intelligent …
Li-ion cells become more and more popular due to their capacity and reasonable prices. In this entry I will show how to build a simple li-ion battery charger based on MCP73831 chip. It’s a quite useful device for DYI projects, in addition its cost is only around 1,5 euro The device uses USB port as …
I designed this circuit for the same reason that i designed the SMPS Boost regulator with the MCP1640 – To gain experience in SMPS technology. This time i use the high power LM2595 buck regulator. The circuit accepts any AC voltage from 8 to 45 Volts. This wide input voltage range is a remarkable feature! …
Like other simple, single-cell lithium-ion battery chargers, Microchip’s MCP73812 provides no means of indicating the charging status. You can remedy this situation by adding four components (Figure 1). Add one more LED, and you also get a charging-complete indication. This two-LED configuration has the added benefit that one of the LEDs is always on, providing …
Add charging status to simple lithium-ion charger Read More »
Sealed Lead Acid batteries are often used in amateur radio as a convenient power source for radios, since amateur radio equipment has standardized on 12.6V. The Cal Poly Amateur Radio Club enjoys a steady source of donations of slightly used SLAs, so I got a few of them with need for a battery charger. Since the …
Lead-Acid Battery Charger 555 Based Constant Current Read More »
