simple light dimmer circuit | Next Electronics

An input sine wave applied to the left amplifier base results in the collector output fluctuating above or below 6.6 volts. The amplifier amplifies and inverts the signal, maintaining a roughly centered output, thereby minimizing the chances of clipping. The...

Fading LEDs schematic

This circuit is used to slowly illuminate and fade a pair of red LEDs (light emitting diodes). The fading LEDs could be installed as 'eyes' in a small pumpkin or skull as a Halloween attraction, or mounted in a Christmas...

LED Chaser

General There are many 9V chaser circuits that seem to waste about 7V when driving LEDs that are only about 2V. This project is unique, because it uses only two inexpensive alkaline battery cells totaling 3V for power. Since most...

LED strobe has independent delay and duration

This circuit is not complex, but it was instrumental in an application involving the visual inspection of the spray pattern of fuel injectors for quality and consistency. In this application, xenon strobe lights were unsuitable due to their large size...

puff to off circuit

This is a circuit diagram of a simple circuit in which the LED can be activated only by a gust of air. A condenser microphone (M1) is used to detect breath. When the S1 button is pressed, transistors Q2 and...

How does LED Flashes One by One in my Project Some Queries

A project called LED Flasher that sequentially flashes LEDs one by one. There is a query regarding the project, and any simple explanation would be greatly appreciated. A reference image or a link can be used for additional context. The LED...

LED Flasher IIV

This is a simple design of a single flashlight. This small circuit is within a half hour to build. The circuit operates from 4.5 to 12 V. Of course it is possible other than to drive an LED. More: R1,...

Introduction to PWM Inverters

Nowadays, most inverters available in the market utilize Pulse Width Modulation (PWM) technology. Inverters based on PWM technology exhibit superior performance in several aspects compared to those designed using conventional methods. These PWM inverters typically employ MOSFETs in the output...

Can produce circuits within the range of 1-99% duty cycle of the digital set-precision PWM wave

The circuit described is a crystal oscillation circuit using a CM OS inverting configuration, designed to ensure accurate operation. It employs a BCD counter (IC2) capable of achieving a maximum oscillation frequency of 2 MHz, which is 100 times the...