OEM Customized wholesale XJM7-K Measuring Box (Outdoor Street Lamp Measurement Control Box) Export to Lithuania
Exterior and dimensions
Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs for OEM Customized wholesale XJM7-K Measuring Box (Outdoor Street Lamp Measurement Control Box) Export to Lithuania, If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
XJM7-K measuring cabinet (outdoor street lamp measurement control box) is suitable in power supply line with AC 50HZ, rated voltage(0-380V), as the street lights control of industrial mine, residential quarters, schools and other buildings. Also can be used for control neon lights , underwater lighting, Street lights on/off time and with leakage protection.
In line with GB7251.1-1997 and GB7251.3-1997 standards.
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How to Make a Simple 12 V, 1 Amp Switch Mode Power Supply SMPS Circuit-
Today power supplies are much compact, smaller and efficient with their functioning. Here we discuss one outstanding switch mode power supply circuit which can be easily built at home for deriving clean, ripple free 12 V DC.
The circuit diagram is very easy to understand, let’s study it with the following points:
Looking at the figure we can easily see that the configuration does not involve too many stages or parts.
The input mains AC, as usual is first rectified using ordinary 1N4007 diodes which is fixed in the bridge network mode.
The rectified high voltage DC is filtered using the high voltage capacitor.
The next stage is the crucial one which incorporates the outstanding chip VIPer 22A manufactured by ST Microelectronics.
The IC alone functions as the oscillator and induces a frequency of around 100 KHz into the primary winding of the ferrite E core transformer.
The IC is absolutely rugged and is internally protected from sudden voltage in rush and other voltage related component hazards.
The IC also incorporates built in over heat protection which makes the IC virtually indestructible.
The voltage induced at the input is effectively stepped down at the output winding, due to low eddy current losses, about 1 amp current becomes available from a relatively tiny ferrite transformer.
With the coil specs shown the voltage is around 12 and the current is around 1amp
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