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Electronics > Electronics > Flashcards

Electronics Flashcards

1
Q

Vpk ➡️ Vrms

A

Vpk / root 2

Works for all waves

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2
Q

Vrms ➡️ Vpk

A

Vrms x root 2

Works for all waves

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3
Q

Vpk ➡️ Vavg

1phase, 1/2 wave

A

Vpk x .318

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4
Q

Vpk ➡️ Vavg

1phase, full wave

A

Vpk x .637

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5
Q

Vpk ➡️ Vavg

3phase, 1/2 wave

A

Vpk x .827

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6
Q

Vpk ➡️ Vavg

3phase, full wave

A

Vpk x .955

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7
Q

Vrms ➡️ Vavg aka Form Factor

1phase, 1/2 wave

A

Vrms x .45

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8
Q

Vrms ➡️ Vavg aka Form Factor

1phase, full wave

A

Vrms x .90

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9
Q

Vrms ➡️ Vavg aka Form Factor

3phase, 1/2 wave

A

Vrms x 1.17

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10
Q

Vrms ➡️ Vavg aka Form Factor

3phase, full wave

A

Vrms x 1.35

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11
Q

Frequency

1phase, 1/2 wave

A

1 x Hz (source)

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12
Q

Frequency

1phase, full wave

A

2 x Hz (source)

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13
Q

Frequency

3phase, 1/2 wave

A

3 x Hz (source)

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14
Q

Frequency

3phase, full wave

A

6 x Hz (source)

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15
Q

Vmin

1phase, 1/2 and full wave

A

O volts

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16
Q

Vmin

3phase, 1/2 wave

A

Vpk x sin 30

17
Q

Vmin

3phase, full wave

A

Vpk x sin 60

18
Q

Vmax

A

Vpk for all waves

19
Q

Ripple Volts aka pk to pk ripple voltage

A

Vmax - Vmin

Vmax is Vpk for all waves
Vmin is 0v for 1phase, 1/2 and full
Vmin is Vpk x sin 30 for 3ph, 1/2 wave
Vmin is Vpk x sin 60 for 3ph, full wave

20
Q

PIV

A

V line voltage (phase x root3) x root 2

21
Q

Period of each cycle

A

P = 1 / f

P = period
f = frequency

22
Q

V inst

A

Vpk x sin ø

23
Q

How to get Vavg for 1/2 wave

A

Vavg = Vpk (1+cosø/2*(pie))

24
Q

How to get Vavg for full wave

A

Vavg = Vpk (1+cosø/(pie))

25
Q

Ie : current in the emitter

A

IB + IC

26
Q

What is saturation voltage?

A

Vce = .1v

27
Q

How can you find base current/collector current with Beta?

A

(IC / Beta) or (IB x Beta)

Electronics (1 decks)

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