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Simple PWM control timer NE555

Pulse-width modulation (Prosperity) widely used in a variety of schemes of different pulse power supplies (UPS) to brightness control circuits, контрастнос­тью, volume and other TV settings, monitors and other electronics (electronic equipment), as well as to control the current strength and power consumption… Continue Reading

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sleep stimulator

Recently, due to the massive negative stress deteriorating health in so many people and there is insomnia. Some manage to avoid it without the use of sleeping pills. Helping them in the devices such as the one, diagram and description of which are given in this article. It is well known,… Continue Reading