This simple, enhanced, 5V zero drop PWM solar battery charger circuit can be used in conjunction with any solar panel for charging cellphones or cell phone batteries in multiple numbers […]
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Simple RGB LED Color Mixer Circuit using LM317 IC
The post explains a simple LM317 IC based RGB 3 watt LED color mixer circuit, which can be used for demonstrating the color mixing effects of red, blue, green colors […]
How to Modify SMPS for Adjustable Current and Voltage Output
This article discusses a method through which any ready made SMPS can be converted into a variable current smps circuit using a few external jumper links. In one of the […]
How to Use Resistors with LED, Zener and Transistor
In this post we learn how to use resistors while designing an electronic circuits using LEDs, zener diodes, or transistors. This article can be very useful for the new hobbyists […]
Battery Current Indicator Circuit – Current Triggered Charging Cut off
In this post we learn about a simple battery current sensor with indicator circuit which detects the amount of current consumed by the battery while charging. The presented designs also […]
High Current Li-Ion Battery Charger Circuit
The post explains a high current Li-Ion battery charger circuit which can be used for charging any high current, such as 2S3P, 3S2P battery packs. It can be also used […]