The DC to DC converter circuit described below can be used to convert a 24 V DC source into a 12 V DC output with high efficiency. Meaning, the circuit will allow to acquire a 12 V DC from a 24 V DC source with negligible power loss. Being a switching regulator, this circuit is […]
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Atmospheric Pressure Indicator Circuit [LED Barometer Circuit]
With temperature, if there is one characteristic physical quantity of the past or future weather, it is certainly atmospheric pressure. The variations of this quantity are particularly interesting for weather forecasting: a decrease in pressure invariably heralds the arrival of rain, while a significant increase is a certain sign of improvement or persistent good weather. […]
Mobile Signal Vibrator Circuit
This mobile signal vibrator circuit will detect the wireless high frequency signals from your mobile phone and will activate the connected vibrator motor. This circuit can be used for many different customized applications. While the implementation of an external vibrator is not electronically complicated, it encounters a simple mechanical problem with the vibrator. How can […]
ON/OFF Relay Switch Circuit using Reflection Sensor
This 220 V ON/OFF electronic relay switch can be toggled ON/OFF simply by alternately bringing your finger close to the reflection sensor CNY70. About CNY70 CNY70 is an infrared reflecting sensor comprised of an infrared emitting diode and a phototransistor housed in a tiny plastic container. The sensor operates by generating infrared light and sensing […]
Simple Vibration Sensor Circuit
As its name suggests, this simple vibration sensor circuit using piezo transducer allows for the detection of vibrations to which its sensor is subjected. Unlike superficial pressure sensors whose resistance varies depending on the force they are subjected to, the transducer used here is only sensitive to variations in pressure exerted on its sensitive face. […]
High Current Adjustable Switching Power Supply Circuit using L296 IC
The L296 is a monolithic power switching regulator IC, incorporating an adjustable output voltage, current limiting, and thermal shutdown. Due to these features, this IC has become a favorite option for a many different applications such as bench power supplies, battery chargers, and motor controllers. The IC L296 will be used in this circuit to […]