ABE-NZ > Semiconductor Switch > Flashcards

Semiconductor Switch Flashcards

(11 cards)

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1
Q

Mechanical switch disadvantages

Name one

A

Contact Bounce
Arcing
Get Dirty
Slow to operate

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2
Q

Semiconductor switch disadvantages

Name one

A

Leakage current in off state
Voltage drop over Emitter and collector
Consume power
Generate RFI

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3
Q

Explain Semiconductor switch

A

Cutoff = <0.6 v

Saturation (on) IB = IC/HFE

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4
Q

BJT ON

A

VBE +0.7v

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5
Q

BJT OFF

A

VBE <0.7v

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6
Q

JFET ON

A

VGS = 0v

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7
Q

JFET OFF

A

VGSoff = VP

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8
Q

D Mode MOSFET ON

A

VGS = 0v

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9
Q

D Mode MOSFET OFF

A

VGSoff = VP

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10
Q

E Mode MOSFET ON

A

VGSon or VGSth

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11
Q

E Mode MOSFET OFF

A

VGS = 0v

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