Single phase switch mode rectifiers
- R.K.N. Engineering Coll., Nagpur (India)
- Indian Inst. of Tech., Kanpur (India). Dept. of Electrical Engineering
AC to DC power conversion received a considerable boost with the introduction of self commutated devices such as power transistors, MOSFETs, IGBTs and GTOs. Not only the availability of these devices led to the development of several converter configurations and active waveshaping techniques but allowed the power conversion to be realized economically and efficiently. The advantages associated with these devices include near sinusoidal input current, smaller sizes of input/output filters and efficient power conversion. The first switch mode rectifier circuit consisted of front end diode rectifier, a boost inductor and an active switch as shown in a figure. The converter is of boost type (output dc voltage greater than the rms value of input voltage) and is capable of only unidirectional power flow (source to load). Few configurations of SMRs which use diode rectifier and MOSFET switch have been reported recently. These can be used in low to medium power applications. In this paper six new single phase SMR circuits are presented. Comparative study of these circuits has been carried out and experimental results for unity power factor operation are given for three of these to verify feasibility of these SMR circuits.
- OSTI ID:
- 474536
- Report Number(s):
- CONF-9601119--; ISBN 0-7803-2795-0
- Country of Publication:
- United States
- Language:
- English
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