current measurement of whole circuit - need help

[shreekalak]

current measurement

hi..
i am using a transformer which generates ±15V and +5V using 7815,7915 and 7805.
this supply is used to drive my circuit which consists of 6 quad opamp IC's and other passive components...
everything is build up on PCB..
now i want to measure current of whole circuit...
please help me how to find out the current...
please help me soon...

 

[dipnirvana]

Re: current measurement

Use shunt resistor or cut a wire in between in the primary side and insert an ammeter . carefull though in the primary side.