1 Dec, 2014 Rakesh Sharma
Reviews .
Inside look
Internal battery pack. Easy tool less removal and battery replacement. This unit is having two 9Ah/12v batteries connected in series for total on 24 volts.
Heavy duty connector and battery temperature sensor.
Master UPS output is having separate line which is monitored for load to control other output ports.
External battery pack connector and Data Surge protection pcb having MOV array.
Main inverter transformer. Older APS 1000VA UPS used to have a big chunk of Iron in form of Class –A Step-up transformer. Heavy and about 60-70% efficient. But this version is having a substantial high-frequency Class -B transformer(430-0156 R02 CL-B) increasing efficiency upto 84% and help in reducing overall weight of UPS , result in sleek design also help in reducing thermal footprint too.
All aluminum plate heatsinks are having different Power MOSFETs, transistors and regulation ICs.
Even main circuit need some power for themselves, and unit gets its power from a TOP234Y highly integrated fly-back switching power supply, rated for up to 45 W output on 85-265 VAC line input, which is more than enough to charge the UPS batteries and run all other electrons inside the unit.
Surge protection section with VHF Capacitors (remove noise inference), Metal Oxide Varistors(absorb Surge) and Large Heavy-duty Ferrite Toroidal Inductors( provide increased noise filtering and lowers let-through voltage).