LED flickering problem

[adizues]

I have installed a LED light at my office. It is connected to Inverter, and there is an HP laser printer connected to Inverter.
When the printer is in running mode, there is a flickering in in LED light..
Ours supply from inverter is 225 V / 50Hz,
The Led light have a constant current driver.
Please tell me to solve the problem.

 

[Electro nS]

what if the printer is needs more power than your inverter can supply , if you have an oscilloscope connect it to the wall socket to see whats the problem .

but the only thing i can think about is using big capacitors. or use DC powered LEDs

 

[adizues]

When the printer is running the one wave in oscilloscope is coming down to 180V...
please help

 

[Electro nS]

i think now after what you have said that the problem might be with the Batteries of the UPS , check the voltage across them when the printer is running , because clearly your printer needs more power than what your system is providing . some times when batteries are weak , the voltage drops quickly when huge current is drawn .causing drop in the AC output of the UPS .

you might need to change your batteries if they proved to be weak , otherwise the inverter power rating should be checked and compared to the actual load power of the printer + the lights in the Home/office .

my advise , buy a smaller printer for emergency use on this inverter and when mains power is available turn on the big printer you already have .

hope this helps you , man good luck

 

[swapna.b]

Probobly Your circuit driving current is not suffient.It may have a chance to flicking the LED's