OFFICE : +91 9765557594 / FACTORY : +91 9765557595 sales@micropower-india.com

FAQ-SMPS

Electronic Security Surveillance

1. WHAT IS THE OUTPUT WATTAGE & HOW IT IS CALCULATED FOR POWER SUPPLY?

Output wattage is a product of output voltage and output current.

Ex. output voltage is 12V & output current is 5A.

Then output wattage will be (12*5)=60W

2. WHAT IS EMI FILTER?

EMI filter is filtering electromagnetic radiation emitted by different Electronic or Electrical devices.

3. WHAT IS LOAD CURRENT?

Load Current is simply total current drown by the load that is connected at the output.

4. HOW TO SELECT THE CORRECT RATING OF POWER SUPPLY FOR CAMERA CONNECTION?

To start with one should know total load current. After knowing total load current for safety margin add 20% to 30%.

  • So for example total load current is 12 A.
  •  Add 20% so it becomes 14.4A.
  •  So one can safely use SSM1215 i.e. 12V @ 15 A.

5. WHAT IS SURGE OR FLUCTUATION ON AC SIDE?

Surge means AC voltage going up drastically for few milliseconds. Fluctuation means AC Voltage fluctuating from lowers side to higher side. Surge and fluctuation occurs because of disturbances in incoming AC grid or lighting during rainy season.

6. WHAT ARE THE PROTECTIONS MICRO POWER BRAND HAVE FOR FLUCTUATION AND SURGE?

The entire range of Micro power brand is designed in such a way that surge and Fluctuation will have little effect on the performance of any model

7. WHAT HAPPENS TO POWER SUPPLY WHEN IT IS OVER LOADED?

All Micro power brand SMPS are designed as CCCV topology that means if power supply is over loaded meaning it is drawing more current than rated current, the output voltage will drop from its rated value.

8. WHAT IS IDEAL DISTANCE RECOMMENDED BETWEEN CAMERA AND POWER SUPPLY?

The ideal distance recommended between camera and power supply is 30 meter Maximum.

9. DOES QUALITY OF CABLE HELP TO IMPROVE POWER SUPPLY EFFICIENCY?

Yes it does help. Better the quality of cable better will be the image on screen.

10. CAN WE CONNECT SMPS WITHOUT EARTHING?

If the SMPS enclosure is made up of metal body then it is mandatory to use three core cable to be connected to live, neutral and earth. Without connecting earthing there will be a very small leakage voltage that will appear on the metal chassis.

11. CAN WE USE TWO SMPS IN PARALLEL FOR INCREASING CURRENT CAPACITY?

Yes we can use SMPS with similar current and same voltage rating with the help of
diode ORing to increase the current capacity.

12. CAN WE CONNECT TWO SMPS IN SERIES TO ACHIEVE HIGHER VOLTAGE?

Yes, we can use SMPS with similar voltage and current rating in series to achieve higher voltage.

13. DOES MICRO POWER SMPS SUSTAIN OUTDOOR CONDITION?

No! Micro Power brand SMPS doesn’t sustain outdoor condition.

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EL-15, Electronic Zone, MIDC Hingna Road Nagpur 440016 India.

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+919765557594, 9765557595, 9986777799

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sales3@micropower-india.com

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