Current meter used to measure the current from a solar panel. It has very low power loss for currents in the 0-10A range. It also works as a general purpose DC current meter Gate Boost Solar Engine The Gate Boost SE uses a 1381, a 2N7000 MOSFET and a 2N3906 with a unique voltage doubler to increase the voltage applied to the gate of the MOSFET. P
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hotovoltaic Solar Battery Regulator and Load Controller This device allows solar cell arrays to be connected to either conventional lead-acid, sealed lead-acid, or lithium storage batteries without fear of overcharging. It allows two different electrical loads to be driven from the batteries at two different charge states to maximise power usage efficiency Pyranometer to Current Converter Build a micropower circuit that converts low level DC signal from pyranometer to DC current for long cable metering. The circuit was built with TLV2451, rail-to-rail input/output opamp made by TI Solar Cell Battery Charger This Circuit will allow for Voltage Regulation and Isolation when Charging Lead Acid Batteries with a Solar Cell. This Circuit will be most useful for Solar Panals of less than 100 watts, and when using a suitable transistor in it, Solar Cell Circuits Solar charger for lead-acid batteries This circuit is intended for charging sealed lead-acid batteries with a solar panel in small and portable applications Solar energy meter The meter measures amount of AC energy produced by photovoltaic power system. It uses photocoupler attach to electromechanical energy meter to detect the number of revolution, Solar energy meter Solar charger for lead-acid batteries This circuit is intended for charging sealed lead-acid batteries with a solar panel in small and portable applications Solar panel charge controller/low voltage disconnect...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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