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Mjerenjem struja istosmjernih pretvaraĉa razliĉitim metodama oĉekuju se isti ili pribliţno isti rezultati. U stvarnosti se stvaraju razliĉiti utjecaji i pojave na koje ĉovjek ne moţe utjecati, koje stvaraju razliku izmeĊu razliĉitih metoda mjerenja. Svako mjerenje ima svoju manu i prednost. Bitno je znati manu pojedine metode i pridrţavati se u ograniĉenjima mjerenja. U ovom završnom radu opisani su principi rada uzlaznog i Ćukovog pretvaraĉa, principi rada odreĊenih mjernih instrumenata, te izvršena i usporeĊena mjerenja sa istim. Prikazana je razlika izmeĊu teorijskih valnih oblika i stvarnih izmjerenih oblika. With current measuring of DC-DC converters using different methods, same or approximately the same results are expected. Various influences and phenomena are present in reality that man cannot impact on them, what creates a distinction between different measuring methods. Each measuring method has its own advantages and disadvantages. It’s important to know the disadvantages of each method and stick in measuring limitations. This undergraduate thesis describes the working principles of boost and Ćuk converters, the working principles of certain measuring instruments, performed and compared measurements. There is presented the difference between theoretical and actual measured waveforms