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Characteristics of Switching Devices Typical Switching Configuration

Characteristics of Switching Devices Typical Switching Configuration. Typical Switching Waveforms. Turn device ON. Turn device OFF. ON and OFF Times. Storage time, t s Fall time, t f t off = t s + t f. Delay time, t d Rise time, t r t on = t d + t r.

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Characteristics of Switching Devices Typical Switching Configuration

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  1. Characteristics of Switching DevicesTypical Switching Configuration ECE 442 Power Electronics

  2. Typical Switching Waveforms Turn device ON Turn device OFF ECE 442 Power Electronics

  3. ON and OFF Times Storage time, ts Fall time, tf toff = ts + tf Delay time, td Rise time, tr ton = td + tr Power increasing during switching ECE 442 Power Electronics

  4. Power Losses • The average conduction power loss ECE 442 Power Electronics

  5. Switching Power Loss fs = switching frequency tr = rise time ts = storage time tf = fall time ECE 442 Power Electronics

  6. Total Power Losses PG = Gate Driver Power ECE 442 Power Electronics

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