Chapter 3: Pieces Parts

Question 1

______ voltage is the amount of voltage needed to get current to flow across a diode.

Answer 1

FORWARD voltage

Question 2

Wattage rating of a diode =

Answer 2

Vf * C

Forward voltage * current

Question 3

If the voltage in the reverse direction of a diode gets high enough, current will flow. This is called the ______ voltage or the ______ ______ voltage.

Answer 3

If the voltage in the reverse direction of a diode gets high enough, current will flow. This is called the BREAKDOWN voltage or the PEAK INVERSE voltage.

Question 4

The ______ transistor needs current pushed into the ______ to turn the transistor on, whereas the ______ transistor needs current pulled from the ______ to turn on.

Answer 4

The NPN transistor needs current pushed into the BASE to turn the transistor on, whereas the PNP transistor needs current pulled from the BASE to turn on.

Question 5

Transistors are _______ driven devices.

Answer 5

Current

Question 6

Transistors can be used as both ______ and ______

Answer 6

amplifiers, switches

Question 7

For a Diode the _______ acts as the gate controller for a larger electric supply.

Answer 7

Base

Question 8

For a diode, the ______ is the large electric supply.

Answer 8

Collector

Question 9

For a diode, the ______ is the output of the electric supply.

Answer 9

Emitter

Question 10

When using a transistor as a ______, always consider whether you are driving the device into ______ (which occurs when you are putting enough ______ into the ______ to get the transistor to move the max amount of ______ through the ______ ).

Answer 10

When using a transistor as a SWITCH, always consider whether you are driving the device into SATURATION (which occurs when you are putting enough CURRENT into the BASE to get the transistor to move the max amount of CURRENT through the COLLECTOR).

Question 11

Use a ______ transistor to switch a ground leg.

Use a ______ transistor to switch a Vcc leg.

Answer 11

NPN, PNP

Question 12

The amount of current flowing through the transistor collector is ______ to the ______ through the ______. This is called the ______ or ______ of the transistor.

Answer 12

The amount of current flowing through the transistor collector is PROPORTIONAL to the CURRENT through the BASE. This is called the BETA or HFE of the transistor.

Question 13

If you need the power amplifier capability of a transistor you should team it up with an ______. This is because you have to deal with the _______ and ______ of the transistor if using it alone.

Answer 13

If you need the power amplifier capability of a transistor you should team it up with an OP-AMP. This is because you have to deal with the BIASING and BETA/HFE of the transistor if using it alone.

Question 14

FET =

Answer 14

Field Effect Transistor

Question 15

The ______ of a FET is basically a ______ that varies depending on the ______ at the input.

Answer 15

The OUTPUT of a FET is basically a RESISTANCE that varies depending on the VOLTAGE at the input.

Question 16

FET outputs =

Answer 16

Drain & Source

Question 17

FET input is the

Answer 17

Gate

Question 18

Virtually no ______ is needed at the ______ to affect the FET; this makes it an ideal component for ______ a signal that is ______ since the FET will not load the signal significantly.

Answer 18

Virtually no CURRENT is needed at the GATE to affect the FET; this makes it an ideal component for AMPLIFYING a signal that is WEAK since the FET will not load the signal significantly.

Question 19

One cool thing about a FET is the drain-to-______ connection. It acts like a resistor that you control by the ______ at the ______.

Answer 19

One cool thing about a FET is the drain-to-SOURCE connection. It acts like a resistor that you control by the VOLTAGE at the GATE.

Question 20

Diodes are a _____ _____ ______ for electrons

Answer 20

One way valve

Question 21

______ have a forward-voltage ______ you must overcome before they will conduct.

Answer 21

DIODES have a forward-voltage DROP you must overcome before they will conduct.

Question 22

Transistors are ______ driven

Answer 22

Current

Question 23

Transistors have a ______ in the ______ that needs to be ______ to work right.

Answer 23

Transistors have a DIODE in the BASE that needs to be BIASED to work right.

Question 24

When using transistors as switches, check the _______ current.

Answer 24

Saturation

Question 25

FETs are ______ driven

Answer 25

Voltage

Question 26

FETs tend to be ______ robust: Take care to design plenty of ______ between your circuit and the ______ ratings of the part.

Answer 26

FETs tend to be LESS robust: Take care to design plenty of HEADROOM between your circuit and the MAX ratings of the part.

Question 27

FETs are ______ sensitive.

Answer 27

Static

Question 28

Meticulously study the ______ of the part you are using.

Answer 28

Datasheet