Power electronic burn-in testing consumes a huge amount of energy and adds up to a significant part of the manufacturing cost. To improve this situation, a pulsewidth modulation (PWM) dc/ac inverter using current-mode control is proposed to feed back burn-in test power to the utility system. To implement the proposed idea, a new control strategy and system design are presented in this paper. Case studies using uninterruptible power systems (UPS's) and battery chargers are demonstrated by means of prototype experiments to prove its performance and effectiveness. Burn-in test, consumption power feedback unit, current-mode control, inverter, power control mode, power factor correction mode.
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