u-1L5Power Semiconductor Devices.pdf - Power Semiconductor Devices Power Electronics 1 Power Semiconductor Devices A brief survey of power semiconductor

u-1L5Power Semiconductor Devices.pdf - Power Semiconductor...

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Power Semiconductor Devices Power Electronics Power Semiconductor Devices 1
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A brief survey of power semiconductor devices Power Electronics Power Semiconductor Devices 2 Power diodes Power MOSFETs Insulated Gate Bipolar Transistors (IGBTs) Thyristors (SCR, GTO) On resistance vs. breakdown voltage vs. switching times Minority carrier and majority carrier devices
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The power diode Power Electronics Power Semiconductor Devices 3 Appearance Construction Symbol
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Reverse-biased power diode Power Electronics Power Semiconductor Devices 4
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Forward-biased power diode Power Electronics Power Semiconductor Devices 5
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Typical power diode characteristics Power Electronics Power Semiconductor Devices 6
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Typical diode switching waveforms Power Electronics Power Semiconductor Devices 7
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Types of power diodes Power Electronics Power Semiconductor Devices 8 Standard recovery Reverse recovery time not specified, intended for 50/60Hz Fast recovery and ultra-fast recovery Reverse recovery time and recovered charge specified Intended for converter applications Schottky diode A majority carrier device Essentially no recovered charge Model with equilibrium i-v characteristic, in parallel with depletion region capacitance Restricted to low voltage (few devices can block 100V or more)
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Characteristics of several commercial power rectifier diodes Power Electronics Power Semiconductor Devices 9
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The power MOSFET Power Electronics Power Semiconductor Devices 10 Appearance Symbol n-channel p-channel
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The construction of Power MOSFET Power Electronics Power Semiconductor Devices 11
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MOSFET: Off state Power Electronics Power Semiconductor Devices 12
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MOSFET: On state Power Electronics Power Semiconductor Devices 13
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MOSFET body diode Power Electronics Power Semiconductor Devices 14
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Typical MOSFET characteristics (1) Power Electronics Power Semiconductor Devices 15
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Typical MOSFET characteristics (2) Power Electronics Power Semiconductor Devices 16
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Power MOSFET switching waveform Power Electronics Power Semiconductor Devices 17
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A simple MOSFET equivalent circuit Power Electronics Power Semiconductor Devices 18
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Characteristics of several commercial power MOSFETs Power Electronics Power Semiconductor Devices 19
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