YAOW-MING CHENChen, Y.-C.Y.-C.ChenWu, H.-C.H.-C.WuChen, T.-M.T.-M.Chen2018-09-102018-09-102008http://www.scopus.com/inward/record.url?eid=2-s2.0-62949246016&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/341059The objective of this paper is to propose an improved delta modulation (IDM) control scheme for DC-DC buck converters. The proposed IDM has various slope of carrier signal by feed forward the input control signal into the integrator of the delta modulator. It can overcome the drawback of the conventional delta modulation (CDM), which can not be applied to DC-DC converters. In this paper, the operation principle of the proposed IDM is introduced. The effect of the circuit parameter variation to the converter performance is presented, too. Finally, both the computer simulation and experimental results show that the proposed IDM control scheme can achieve very stable output voltages with fast transient response. © 2008 IEEE.Buck converter; Feed-forward control; Index Terms-delta modulation; Pulse-width modulation[SDGs]SDG7Delta modulation; Energy conservation; Modulators; Power converters; Pulse width modulation; Buck converter; Carrier signals; Circuit parameters; Control schemes; Control signals; Converter performance; Dc - dc converters; DC-DC buck converters; Delta modulators; Fast transient response; Feed forwards; Feed-forward control; Improved deltas; Index Terms-delta modulation; Modulation techniques; Operation principles; Output voltages; Modulationconference paper10.1109/ICSET.2008.4747059