all about wiring diagram

This circuit, designed on request, has confirmed to be useful to indicate when the voltage in an influence supply line is changing from 120V to 240Vac. It can be utilized in numerous situations and circuits, mainly when an increase in ac or dc supply voltage must be detected. D3 illuminates when the road voltage is drawing near 120V and will stay in the on state also at 240V provide. On the opposite hand, D6 will illuminate best when the road voltage is about 240V and can stay on for the explanation that latching motion of Q1, Q2 and related elements. C1, D1 and D2 present a low dc voltage within the four.5V - 6V vary in order to permit right kind operation of latch circuit and LEDs.

Circuit diagram:

Parts:
R1__________470R 1/2W Resistor
R2__________220K 1/4W Resistor
R3,R7_______470R 1/4W Resistors
R4__________1K 1/4W Resistor
R5__________2K2 1/4W Resistor
R6_________330R 1/4W Resistor
C1_________330nF 630V Polyester Capacitor
C2_________10µF 25V Electrolytic Capacitor
D1,D2______N4007 1000V 1A Diode
D3,D6______LEDs (Color and shape at will)
D4_________BZX79C10 10V 500mW Zener Diode (See Notes)
D5_________1N4148 75V 150mA Diode
Q1_________BC547 four5V 100mA NPN Transistor
Q2_________BC557 four5V 100mA PNP Transistor

Notes:

• D4 price could require some adjustment to be ready to permit precise switching of the circuit at the chosen voltage. If the case, please try values in the eight.2V - 15V range.
• Warning! The circuit is connected to 240Vac primarys, then some phases within the circuit board are subjected to lethal potential! Avoid touching the circuit when plugged and enclose it in a plastic field.