Saturday 16 October 2010

Wseas Transactions

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Transactions ID Number: 19-543
Full Name: Qamil Kabashi
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: Mitrovica
Country: ALBANIA
Tel: 049214860
Tel prefix: 00386
Fax:
E-mail address: qamil.kabashi70@gmail.com
Other E-mails: kabashi_q@hotmail.com
Title of the Paper: Impact of rise time driving signal and mismatch threshold voltage MOSFET's in parallel connection of Push-Pull Power Inverter
Authors as they appear in the Paper: Myzafere Limani, Qamil Kabashi, Nebi Caka, Milaim Zabeli
Email addresses of all the authors: myzafere.limani@fiek.uni-pr.edu, qamil.kabashi70@gmail.com, nebi.caka@fiek.uni-pr.edu, milaim.zabeli@gmail.com
Number of paper pages: 8
Abstract: Abstract—Analysis of the dynamic sharing currents at turn-on process in power PWM inverter system with switching Metal-Oxide-Semiconductor-Field-Effect-Transistors (MOSFET's) connected in parallel is presented. The inverter circuit presented in this paper is low power inverter which can be used as a charger too. The influence of the diferent rise time driving signals and parameters mismatch between parallel MOSFET branches, over wide operating ranges is analyzed, resulting in dynamic currents, transition energy unbalance, time delay on switching process of parallel MOSFET's, and time delay at output voltage of inverter. One of many potential causes of mismatch parameters is the threshold voltage Vth. Results are presented for the time delays during On switching of the parallel branches in inverter with five power MOSFET's in each of two legs, selecting same threshold voltage initially, for various rise time driving signals of the two legs of inverter when only one !
MOSFET in particular leg has lower threshold voltage than others.
Keywords: Dynamic current, Mismatch parameters, PWM- Pulse Width Modulation, Rise time, Switching, Threshold voltage, Time delay.
EXTENSION of the file: .doc
Special (Invited) Session: The impact of mismatch threshold voltage MOSFETs in parallel connection of Push-Pull Power Inverter
Organizer of the Session: 201-439
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