The following post explains through calculations how to select and evaluate the right solar panel, inverter and charger controller combinations for acquiring optimal results in the form of free electricity.
The following post describes a simple yet useful car speed limit warning indicator circuit which can be used in vehicles for getting an instant indication of a possible over speed limit conditions. The idea was requested by Mr. Abu-Hafss.
May 28, 2013
The post explains the main features of high current N-Channel mosfet IRFP2907 which is rated to handle up to a staggering 209 amps of continuous current at a reasonably massive 75 volts.
May 26, 2013
The following post describes a simple low battery indicator circuit by using just two inexpensive NPN transistors. The main feature of this circuit is its very low stand by current consumption.
Lead acid batteries can sometimes be a problem to get rid of. They can also be high priced to upgrade. In case discarded in the wrong way, they have a tendency to finish up in the land fill up or even rotting of in your junkyard.
The following post shows how a full bridge 1 KVA inverter circuit can be built using 4 N-channel mosfets, without incorporating complicated high side driver networks or chips.
May 16, 2013
The post discusses the construction of a car air ionizer circuit which can be used for cleansing the atmosphere of car interior from smoke, pollution, dust particles, bad odor, pollen particles etc. The circuit was requested by Mr. Edalcor Zuproc.
The following post explains the main features of mosfet IRF3205 which is fundamentally rated with drain current at a massive 110 Amps, and voltage ranging up to 55V, ideally suitable for inverter, motor control, choppers, and converter applications.
May 11, 2013
The following post discusses a simple transformerless power supply circuit whose output can be varied from zero to the maximum specified voltage level. The design also ensures the availability of relatively high currents, and protection against switch ON surge currents. Designed by "Swagatam".
May 8, 2013
The XLamp XM-LED can be considered as the highest performing, single die solid state LED module which is able to produce lights at ultra bright intensities.
May 7, 2013
The proposed circuit of a modified car head lamp fader, "breather" circuit generates a slow flashing effect over the head lamps every time the lamps are switched OFF. The "breathing effect" continues for a certain predetermined period after which the process automatically shuts off. The circuit was requested by Mr. Ray.
May 6, 2013
The following post describes a simple timer oscillator circuit which can be used for keeping an exhaust fan alternately switched ON/OFF as per a fixed predetermined period. The circuit was requested by Mr. Anshuman.
May 5, 2013
The post discusses an automotive/car turn signal indicator circuit idea with a built-in load malfunction indicator, meaning an additional LED lamp fitted on the dashboard which would warn if any of the side indicators went bad or fused. The idea was researched and requested by Mr. Abu-Hafss.
May 2, 2013
The post explains a very simple digital panel type voltmeter circuit using a single IC L7107 and a few other ordinary components. The circuit is able to measure voltages right up to 2000 AC/DC V.