Abstract
An innovative electronic circuit for a capacitor-start single-phase
induction motor was presented in this article. This new electronic
circuit employs a traic-switch with a firing angle of about 90° to
replace the conventional capacitor in order to start the motor by
providing the required starting torque. The experimental results
showed that such a new arrangement worked successfully under
different operating conditions at laboratory scale as predicted in the
theoretical analysis. The proposed circuit does not only replace the
capacitor, but also believed to be most suitable for motors with
variable power ratings. lt is predicted that such a new scheme, with
single-phase induction motor, may exhibit lower price in the market,
thus consumers would enjoy buying cheaper and reliable appliances.