Indicator Consumption AC Load Circuit Diagram

This is Indicator consumption AC Load Circuit Diagram. Some types of electronic equipment does not show that in fact they are consuming energy when they are plugged into an outlet. This pilot light is not required if the unit consumes less than 10 watts according to international standards. But if you turn off the equipment, will be contributing with nature and your pocket, reducing the bill. One way to detect the AC power being consumed, independent of the load is connected in series with a diode AC power supply. In this circuit 6A diodes have been used which can withstand a peak current of 200A is not repeated.

Indicator consumption AC Load Circuit Diagram

The voltage between the diodes serves as the voltage supply for the LED and circuit. To increase the sensitivity of the circuit, we used a voltage doubler consisting of C1, D7, D8 and C2 is used to double the voltage of D1-D6. Another advantage of this scheme is that both reduce by half waves of alternating current. Must use Schottky diodes in a cascade circuit, to minimize voltage losses. 

The LED will light intermittently (flashing) it is connected to a circuit monoastavel by increasing the amount of current flowing through the LED is on, even with small loads. The average consumption is approximately 0.5 mA at a voltage of 3 V (2.7 mA when the LED is on and when it is off 0.2 mA). C4 and R4 determines the time that the LED will blink (0.5-0.6 s, depending on the voltage supply). The light emitting diode (LED) has its off time, which is determined by the C3 and R3 is slightly less than 5 seconds. 

 In D1-D6 measurements indicate that the voltage drop across each diode is about 0.4 V at a current of 1 mA. Must be careful, the circuit is energized and can generate shock, never work in the circuit with the cable connected to the network. The best case for the circuit is a small clear plastic box with the same color of the LED.