Capacitor charge and discharge periods is usually calculated through an RC constant called tau, expressed as the product of R and C, where C is the capacitance and R is the resistance parameter that may be in series or parallel with the capacitor C. It may be expressed as shown below: τ = R C […]
Charge
How to Charge a Cell Phone from a 1.5V Battery
In this post I have explained a very simple charging a cell phone from a 1.5v battery utilizing merely a 1.5V as the input source. The source can be any 1.5V cell rated at minimum 1000 mAH. Circuit Operation The circuit description is provided below, let’s try to understand the working principle of the proposed […]