transistor
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LCD-LED Display
LED Running Lights Circuits
In this article, we will see different LED Running Lights Circuits, which are also called as LED Knight Rider Circuit.…
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Motor Circuit Diagrams
Bi-Directional Motor Driver Using ULN2803 Schematic Circuit Diagram
Motor driver modules for motors allow you to control the working speed and direction of two motors simultaneously. Here we…
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LCD-LED Display
Little Nightlight Schematic Circuit Diagram
Here we describe a very simple, economical and light-weight automatic nightlight that runs on 230V AC mains and can be…
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Power Supplies
PARALLEL VOLTAGE REGULATOR SCHEMATIC CIRCUIT DIAGRAMS
A standard parallel voltage regulator circuit is given in figure-1.5. In this circuit; A voltage divider suitable for regulating with the aid…
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Amplifier Circuit Diagrams
LOW COST REAL 20W QUALITY AMPLIFIER SCHEMATIC CIRCUIT DIAGRAM
A transistor amplifier for beginners. It is actually an example of how superior a medium transistor amplifier is than its cheap…
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Amplifier Circuit Diagrams
GERMANIUM TRANSISTOR AMPLIFIER AD161 AD162 SCHEMATIC CIRCUIT DIAGRAM
It was once an experiment with the AD161-AD162 pair. I still use it almost every day. At first, I did not like…
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LCD-LED Display
PR4401 1-Watt LED Driver Schematic Circuit Diagram
The PR4401 chip from Prema can be used to drive an LED directly, but not a high-power LED like one…
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Power Supplies
Low-drop Series Regulator using a TL431 Schematic Circuit Diagram
Like the author you may keep some 12 V leadacid batteries (such as the sealed gel cell type) in stock…
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Battery Circuit Diagrams
Dual Battery Schematic Circuit Diagram
Using rechargeable batteries to power circuits is a proven method for providing energy to mains-independent equipment. A major disadvantage of…
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Motor Circuit Diagrams
12 V Bidirectional Motor Control Schematic Circuit Diagram
This simple circuit drives DC motors with a maximum current of 1 A and can be built with readily available…
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