The article discusses many different methods of modifying voltage regulators ICs to improve their voltage and current handling characteristics. We learn how to externally modify these regulators using transistors and […]
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LM195/LM395 Power Transistors Explained [Enhanced Power Transistors with Full Internal Protections]
The LM195 and LM395 are both high efficiency power transistors that were initially manufactured by National Semiconductor Corporation, and later acquired by “Texas Instruments”. These special power transistors are intended […]
Delay OFF Lamp Timer Circuit
This delay off lamp timer circuit will automatically switch OFF a connected lamp after a predetermined time has elapsed. This time delay can be adjusted with a variable resistor or […]
Proximity Detector using Hall Effect Sensor Circuit
This proximity detector circuit uses a Hall effect sensor to detect the approach of a magnetic object, such as a magnet fixed to the frame of a door. The application […]
Windshield Washer Fluid Indicator Circuit
In this article we discuss a permanent indicator of the windshield washer fluid level. Knowing that electronics do not mix well with liquids, instead of using a float gauge system, […]
Diodes: Working, How to Use, Applications
It’s John Ambrose Fleming (1849-1945), a British engineer, who invented the first diode in 1904, in the form of an electron tube. Later, with the development of semiconductor technology, the […]