Realization of source with internal loss-free resistive characteristic

The models of loss-free resistor (LFR) and loss-free source (LFS), source w ith internal loss-free resistive characteristic are proposed, LFR has resis tive I-V characteristic but it has not energy losses. Regulating transistor which depletes energy in de regulated power supply is replaced by LFR, in this way LFS is realized, The models of loss-free current source (LFCS), lo ss-free voltage source (LFVS) and grading conjunction loss-free source (GCL FS) are derived. Their principles and output characteristics are analyzed. The transformation, of many kinds of curves can be realized by LFS, The eff ect of parameters choice on LFS output is analyzed, Experimental results ar e presented to verify the analyzes done.