PROFAHMET Archive

When triggered by a button integrated in the circuit relay 555 timer is energized and immediately set is full when you leave the ignition again. working time is determined by..

Alternative to a zener diode circuit adjustable Zener. According to the current PNP transistor where you will use a more powerful zener diode can be achieved. voltage adjustment every 10k..

With this circuit current limitation can set digitally uln2003a. by the combination of resistors R-2 was used. proportional to the binary number value of the current limiting is set. mje3055..

12 Volt AC voltage capacitors and 24V DC voltage doubling can be obtained. This dc voltage current, capacitors and transformers of capacity depends on the strength of the bridge diode…

Potentially hazardous voltage spikes on the power supply in a simple circuit can protect your device. Zener 12v low voltage determines the value that can be assigned. 10k potentiometer can..

This is a practice used in simple selector circuit. A, B, C are three contenders. The first press of the button Questions and know the warning LED lights Dieren bass..

This circuit is an example of a simple Buck-boost converter circuit. By applying the input voltage from 3v to 15v outlet will receive a fixed value that you set. Determines..

This circuit controls the water level of water tanks or wells. Three level probes are used in the tank to measure the water level. These are conductive rods with a..

The switch circuit works with touch and sound. It can also be used as a simple alarm circuit. The capacitive microphone can be placed on a window, door or an..

PIC16F84 4 MHz crystal is connected 100 Hz PWM output produces a pulse width of 10 separate levels are adjusted these values ​​asm software vary from circuit only engine that..