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Sensors - Tranducers Circuits
Water Level Indicator
The Water Level Indicator detects and indicates the water level in an overhead tank or some other water container using…
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Power Supplies
OVERCURRENT PROTECTION SCHEMATIC CIRCUIT DIAGRAM
Another desirable feature of regulated voltage supplies is overcurrent protection. When overcurrent is drawn from the output of a regulated current…
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High Voltage Circuit Diagrams
High-voltage Regulator Schematic Circuit Diagram
There are many circuits for low voltage regulators. For higher voltages, such as supplies for valve circuits, the situation is…
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voltage converter
Low-cost Step-down Converter Schematic Circuit Diagram
The circuit described here is mostly aimed at development engineers who are looking for an economical step-down converter which offers…
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LCD-LED Display
Low-cost Position Sensor Schematic Circuit Diagram
Ever wanted to build a positioning encoder? Here’s one and you do not even need any sensors. The circuit uses…
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Battery Charger
Lithium-Ion Charger Schematic Circuit Diagram
Lithium-Ion cells require a totally different charging protocol to that for NiCd or NiMH cells, a protocol that has to…
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Motor Circuit Diagrams
A Zero Current Switch Schematic Circuit Diagram
Relays or contractors are often used to switch mains powered inductive loads such as motors, valves or electromagnets. When the…
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LCD-LED Display
Adjustable Low-Dropout Voltage Regulator Schematic Circuit Diagram
This circuit is based on a design for a low dropout voltage regulator in the book 303 Circuits (published by…
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Calculator & Measurement
Constant Current Source Schematic Circuit Diagram
The simplest way to make an adjustable constant current source is to use a voltage regulator in a suitable configuration:…
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Power Supplies
Very Wideband PC Radio Schematic Circuit Diagram
PC radios are certainly nothing unusual. However, unless you are prepared to spend a lot of cash you can’t buy…
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