UPS Circuit For Cordless Phones PCB


Posted on Feb 6, 2014

Circuit This circuit diagram of UPS is designed to use with a cordless telephones that cannot be operated during power failure. Since the ups is only meant for telephone, it`s output power is limiter to 1. 5W. This ups circuit is economical and can be assembled on a general purpose PCB. The circuit works around IC CD4047 which is an astable multivi


UPS Circuit For Cordless Phones PCB
Click here to download the full size of the above Circuit.

brator operating at line frequency 50Hz. It`s outputs are capable of driving MOSFETS IRF540 that is configured as push pull type, directly. Here the inverter output is filtered the spikes are reduced using a metal oxide varistor (MOV).




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Infrared motion detector
    Audio isolation transformer
    Diodeless Rectifier Circuit
    Door Bell Circuit Using BEL 188 PCB
    Tilt Sensor Alarm Circuit
    Hello I have a 2000 GMC Yukon Denali that is intermittently
    QCard Controller 68HC11 Processor
    Site news archive - PCB Heaven
    Professor Mark Csele: Ohio Scientific Computers
    Light Bus speed detecting circuit diagrams
    Soil content measurement circuit



    Top