This Power supply box can be used to interface with the High current Bench power supply made from the SMPS of Computer. The Power supply box has a DC-DC Converter cum Booster module, A Volt Meter and an Ammeter to show output voltage and current consumed by the load. Continue reading
No wonder, technology is that much advanced. You can charge your Mobile phone from a single Pen cell or even from a watch battery. The Mobile battery needs 5V for charging and the Pen cell has only 1.5 volt. How it is possible? There comes the help of DC-DC Booster Module with USB. It converts a voltage as low as 0.9V (900 mV) to 5.1 Volt. Its input voltage can be between 0.9V to 5V so it provides 5.1-5.2 V out put through the USB socket. So you can connect any USB device that requires 5V. Irrespective of the low input voltage, the output remains constant as 5.1V. The Module that works on 1.5V AA cell provides 200 mA current while two AA cells give 600 mA current. Let us build one Pocket Mobile charger. It is too small and costs only Rs.100
Here is a “Green Project” for you to reuse the discarded Mobile phone battery. When I purchased a new Mobile phone, the old one became junk. But it has a very good high efficiency and long lasting Lithium Ion battery rated 3.7 V, 1800 mAh. So I decided to reuse the battery for an alternate purpose. A simple power supply with DC- DC Booster capacity and a White LED emergency light. It can be charged from any USB charger or Laptop. Its output can be adjusted from 3.7V to 37 volts. The DC-DC Booster module boosts 3.7V from the Mobile battery up to 37 volts when turning the pot. The Power supply unit is ideal to power all projects that require 3.7 V to 37V. Its emergency light helps to do work in low light conditions. You have a number of Mobile battery in your Junk box. So try this Green project .It is a worth.