4-level LED lamp display power, not working state intelligent automatic shutdown;
The built-in lithium battery protection IC, over-current, overpressure, under-voltage protection;
Dual USB output ports.
Electronic Circuit Diagrams, Circuit ideas, tutorials and DIYs.
Power Bank Module
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MB10F Bridge Rectifier
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The MB10F is a surface mount glass passivated bridge rectifier from diodes incorporated with a low voltage drop of 1.1V and a forward continuous current of 800mA. It has high efficiency and a high surge current capability of 30A.
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TDA2030 Audio Amplifier
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The TDA2030 IC is a powerful audio amplifier IC able to deliver up to 20W of output power, so you can use it to run a 4Ω speaker at 12W or a 8Ω speaker at 8W.
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IRF510 N-channel Power MOSFET
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IRF510 is a third-generation Power MOSFET with the best combination of fast switching and low on-state resistance. This component is available at a lower cost. Hence, it is widely used in industrial applications for power dissipation levels up to 43W.
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Water Level Indicator Circuit using 555 Timer IC
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We are going to build a water level indicator circuit using 555 timer IC. This is a useful project which detects the water level and gives a signal to the user indicating that the water has reached the desired level.
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Crowbar Circuit
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In this tutorial we will discuss about the Crowbar Circuit which is a type of overvoltage protection circuit and is commonly used in electronic devices. We will also practically create this circuit and verify how it is working in real life.
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TRIAC Dimmer Circuit
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In this project we use Triac (Triode AC Switch) to control the brightness of the AC bulb with a IR TV Remote. You can also control Fan speed with your TV remote using this Triac Dimmer circuit.
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RF Transmitter and Receiver Circuit
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Here we will learn the basics of RF module and how to use it as a standalone RF Transmitter and Receiver. Here we have explained the RF Transmitter and Receiver Circuit by controlling the LEDs wirelessly using RF.
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Panic Alarm Circuit
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A Panic Alarm Circuit is used to send an emergency signal immediately to the people in nearby location to call for help or to alert them. The possible panic situation can be any, it is not restricted to few situations.
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FM Transmitter Circuit Diagram
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Learn how FM Transmitter Works and how one can build own FM transmitter with commonly available electronic components and a circuit diagram.
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