Simple Micro Flasher Circuit using IC CD 4093 is easy way to make LED blink for many indicators, also CD 4093 has four NAND Schmitt trigger gates inside. In addition, circuit runs on 6V battery and need few parts only which is very simple and good and its flashing happens because one NAND gate turn […]
Oscillator Circuits
Timer Based Mosquito Repeller Power Saver Circuit
Mosquito repellers are popular to keep bugs away, as they use ultrasonic sound or chemical spray; but if it is always ON then they use much electricity. To solve this problem, we designed a timer-based mosquito repeller power saver circuit, it switches the repeller ON and OFF at fixed intervals to reduce power consumption and […]
Ultrasonic Mosquito Repellent Circuit
Mosquitoes are small bugs which are very annoying, as they also spread bad sickness like malaria and dengue; so this Ultrasonic Mosquito Repellent Circuit idea is to use high sound especially ultrasonic to above 20 kHz to scare mosquitoes. Ultrasonic sound can disturb them and make them go away, hence, this simple circuit makes that […]
Simple 12V Single Lamp Flasher Circuit
Simple 12V Single Lamp Flasher Circuit make lamp blink ON and OFF which looks cool; also this circuit is simple and strong and is good for 12V car lamps. Furthermore, we can use this circuit for turn signals, warning lights and decorative lighting. The circuit uses a BC557 transistor and an IRF530 MOSFET for switching […]
Simple Lamp Flasher Circuit using IC LM395
This post shows a Simple Lamp Flasher Circuit using IC LM395 to flash a lamp ON and OFF, also LM395 IC is a strong power transistor which works like a switch. Circuit needs only few parts and can handle high current and it has safety features like heat and current protection. Even if design is […]
Simple Triangle Wave Generator Circuit using IC LM358
In this article, we will learn how a triangle wave rises and falls repeatedly. Smaller waves, called harmonics, create this special wave and its shape looks like a triangle because these smaller waves fit together like bricks. Harmonics in triangle wave get weak fast and is not strong like square wave, so triangle wave is […]