Solar panel real Power Calculator for different Latitude

This Calculator allow you to obtain real power output P for different Latitude for your solar panel

More fun physics around CFL, UV or glow discharge lamps

I would like to demonstrate a few more experiments here to give you better understanding about physics which going on inside lamps.

Fun with CFL or UV light bulbs and electronic balast

Here we will talk about powering those light bulbs with dc "ballasts" or better say DC power supplies or converters.

Fix for bluetooth audio amplifier board XH-M314 TPA3118 2x45W from China

The purpose of this article is to help audio enthusiasts, who decided to buy bluetooth audio amplifier board XH-M314 TPA3118 2x45W from China. It was not designed properly and as it seems I found the fix.

CFL and UV lights usage

In the new era of LED (Light Emitting Diodes), most of consumers start forgetting CFL (Compact Fluorescent Lamp) & CCFL (Cold Cathode Fluorescent Lamp). ...apparently fluorescent tubes received second life.

Dictionary for Electrical Enginnering lingvo in to Populas language

Over and over again I see the very loose usage of terminologies.

This may help us to understand each other.

Current and capacitors, calculator

 This calculator helps to compute current limiting capacitor for low frequency (below 60Hz) AC sources of voltage.

Calculator for battery run time for Lead Acids batteries

This is a simplified battery capacity calculator for Lead acid batteries is using the Peukert's law.

Battery Capacity calculator. Dermines battery capacity (C) in ampere-hours (Ah) for 2 (two) sequential discharge events.

This calculator determines the total required battery capacity (C) in ampere-hours (Ah) for two sequential discharge events. It accounts for the load currents (I1, I2), discharge times (t1, t2), discharge rates (Rc1, Rc2), and includes corrections for non-linear effects in internal resistance at low states of charge (SoC).

Battery run-time calculator for Li batteries

This is a simplified run-time calculator to estimate the run-time of your loads for Li batteries. You need to know: a. Battery capacity in mAh (mili Amp hours) b. Load currents in mA.

Please note 1Ah=1000mAh and 1A=1000mA. So if you have large car battery with 20Ah capacity, then put 20000  (mAh) as a number.