Title :
New current-mode precision rectifiers
Author :
Lidgey, F.J. ; Hayatleh, K. ; Toumazou, C.
Author_Institution :
Sch. of Eng., Oxford Brookes Univ., UK
Abstract :
Current-mode techniques are used to realize improved high-frequency precision full-wave rectifiers (PFWRs). Three alternative topologies are described and compared in performance with the classical operational amplifier (op-amp)/diode PFWR. These are a new op-amp supply current-sensing PFWR, a modified classical op-amp/diode design and a novel current-mirror feedback design. The latter exhibits good DC accuracy and the best frequency response
Keywords :
circuit feedback; frequency response; operational amplifiers; power electronics; rectifying circuits; DC accuracy; current-mirror feedback design; current-mode precision rectifiers; current-sensing PFWR; frequency response; full-wave rectifiers; op-amp/diode design; topologies; Circuit synthesis; Circuit topology; Current supplies; Diodes; Frequency response; Limiting; Operational amplifiers; Output feedback; Power supplies; Rectifiers;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393974
