Comments on: UPS-Uninterruptable Power Supplies

By: Muhammad Imran

Muhammad Imran — Sat, 26 Mar 2011 10:08:50 +0000

Dear Sir,
i sale ups of different technologies, like ON-LINE UPS, OFF-LINE UPS, LINE INTERACTIVE UPS. i want to learn how to repair them myself because the technicians don’t give proper time and intention please guide me and let me know, how do i should i take start to learn and the literature which i need to study them or any institute.
Regards.
busimen@hotmail.com +92-300-6401612

By: seetharaman

seetharaman — Wed, 21 Apr 2010 11:35:46 +0000

Hi Mohsin Ejaz you have to increase the invertor transformer capacity and the final drive/out put components to be upgraded with suitable heat sink and protection circuit. it will be a total redesigning of the available circuit, you will be replacing all components except basic oscillator and upto predriver. may not worth the exercise.

By: Mohsin Ejaz

Mohsin Ejaz — Wed, 21 Apr 2010 08:02:10 +0000

I have 220 v 100 va sighn wave invertor. How can i increase power of this unit upto 1 kva? Plz send me the circuit of power section UPS.

By: ayash Khan

ayash Khan — Sun, 18 Apr 2010 04:41:47 +0000

Hi,
Your all circuits are much importance for me.I need off line ups diagram .which base on SG3524 IC base.

Best Regards,

Ayash Khan

By: jawid akhtar

jawid akhtar — Sun, 11 Oct 2009 03:23:07 +0000

Dear Sir.

Your all circuits are much importance for me. would you please send a complete circuit diagram of pwm based ups for home use.

thanking you in anticipation.

jawid akhtar

By: IFTIKHAR

IFTIKHAR — Thu, 08 Oct 2009 17:21:56 +0000

i want a practical ckt of electronic generator to run my home appliances during power shutdowns. please help