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Industrial Electronics > Intro > Flashcards

Intro Flashcards

1
Q

Is a branch of electronics that deals with power electronics devices, such as tryristors etc..

A

Industrial Electronics

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2
Q

An approach/representation in system analysis that identifies the required process in transforming the key inputs into resulting outputs in a system.

A

IPO Model

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3
Q

The two types of system in IPO Model

A
  1. Open loop system
  2. Closed loop system
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4
Q

active device used to design circuits that perform useful operations,
o Generating Sine Waves or Square Waves;
o Amplifying;
o Combining;
o Integrating;
o Differentiating;
o Removing Noise;
o Transforming Alternating Current into Direct Current and vice versa.

A

Operational Amplifier

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5
Q

Used in analog computers to do mathematics operations

A

Op-amp

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6
Q

Operational Amplifier works like a very high 1._____ differential amplifier with 2. ______ input impedance and 3.______ output impedance

A
  1. gain
  2. high
  3. low
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7
Q

Formula of Operational Amplifier without feedback.

A

Vo = Av (V2 - V1)

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8
Q

Vin-, V(-), V1

A

inverting input

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9
Q

-V, VS-, VEE

A

Negative Potential Source

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10
Q

Vin+, V(+), V2

A

non-inverting input

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11
Q

+V, VS+, VCC

A

Positive potential source

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12
Q

Vout, VO

A

Output Voltage

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13
Q

One of the most popular op-amp packaging

A

741 inside an 8-pin integrated circuit package.

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14
Q

Typical Op-Amp gain is approximately….

A

200,000

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15
Q

The output voltage level cannot exceed approximately…

A

80% (Vo sat)

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16
Q

Used to control the gain of op-amp, by connecting resistor from output to the input terminal.

A

Feedback

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17
Q

Also known as Buffer Gate, isolation amp, buffer amp, unity gain amp.

A

Voltage follower

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18
Q

If the input of the voltage follower is 1, the output is…

A

1

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19
Q

If the input of the voltage follower is 1, the output is…

A

1

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20
Q

Most widely used amplifier with constant gain

A

Inverting amplifier

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21
Q

Av = -Rf/Rin = Vo/Vin

A

Gain formula for inverting amplifier

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22
Q

Amplifier output signal be in phase with the output

A

Non-Inverting Amplifier

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23
Q

Vo = (Rf/Rin +1) Vin

A

Formula for Non-inverting amp

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24
Q

Used to compare Vin to Rf

A

Comparator Amplifier

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25
Q

When two or more input signals are tied together and then applied to an input lead of an op-amp, the type of op-amp used is…

A

Summing Amplifier

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26
Q

An op-amp that finds the algebraic difference between two input voltages.

A

Differential Amplifier

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27
Q

Formula for Summing amplifier…

A

Vo = -Rf(V1/R1 + V2/R2 + V3/R3…)

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28
Q

Formula for Differential Amplifier

A

Vo = V2(Rg/R2 + Rg)(R1+Rf/R1) - V1(Rf/R1)

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29
Q

Preferred number series of resistor..

A

E24 Series

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30
Q

Electronic Device used to produce square-wave signals.

Used as relaxation oscillator, timers, and flip-flops

A

Multivibrator

31
Q

An integrated circuit used in variety of timer delay, pulse generation, and oscillator application.

A

555 Timer

32
Q

555 timer can be operated either as a very accurate Monostable, Bistable or Astable Multivibrator? True or False

A

True

33
Q

Modes of operation of 555 timer

A
  1. Astable
  2. Monostable
  3. Bistable
34
Q

No stable states, used as an relaxation oscillator

A

Astable

35
Q

One stable state, one unstable state. Used as timers

A

Monostable

36
Q

Two stable states. Used as flip-flops.

A

Bistable

37
Q

Function that conveys information about the behavior of a system. They occur naturally and they are also synthesized.

A

Signal

38
Q

Signal is necessarily an electric quantity. True or False

A

False

39
Q

Speech/music information

A

acoustic wave

40
Q

image information

A

electromagnetic wave

41
Q

Convey data information

A

instrumentation outputs

42
Q

Transducers are the component used in signal processing. True or False?

A

True

43
Q

Classification of Signals

A
  1. Analog or Digital
  2. Periodic or Aperiodic
44
Q

Used to represent data as sequence of separate values at any point of time.

A

Digital Signal

45
Q

Continuous Signal

A

Analog Signal

46
Q

Signal which repeats itself after a regular interval of time.

A

Periodic Signal

47
Q

It has no pattern of repetition

A

Aperiodic Signal

48
Q

maximum displacement or distance moved by a point on vibrating body or wave measured from its equilibrium position

A

Amplitude

49
Q

Number of repetitions of periodic process in a unit of time period. Measured in Hertz (Hz). 1 repeating per sec 1/sec

A

Frequency

50
Q

Duration or interval of time required for a cyclic motion or phenomenon to complete a cycle and begin to repeat itself.

A

Period

51
Q

Ratio of time the signal is High/on state (PW) to the total time of one cycle.

A

Duty Cycle

52
Q

Formula of Duty Cycle

A

DC = (PW/T) x 100% = (on time/ on time + off time) x 100%

53
Q

Which of the following can be affected by noise?
a. digital signal b. analog signal c. both

A

c

54
Q

A periodic signal with frequency of 1MHz has a period of what seconds?
a. 1ms b. 1μs c. 1ns

A

b

55
Q

What is the duty cycle of a signal with 20 ms pulse width and frequency of 10 Hz
a. 20% b. 50% c. 5%

A

a

56
Q

Physical signals can be converted into
a. electromagnetic signal b. electrical signal c. both

A

c

57
Q
  1. Which of the following can be a periodic signal
    a. analog signal b. digital signal c. both a and b
A

c

58
Q

Devices that change or modify signals applied to their
inputs. The output signals of these devices can be used to
perform specific functions

A

Signal Processor

59
Q

used to amplify very lowlevel signals, rejecting noise and interference signals.

a differential op-amp
circuit providing high input impedances with ease of gain
adjustment through the variation of a single resistor

A

instrumentation amplifier

60
Q

produces a steadily changing output voltage for a constant input voltage

A

Integrator Op Amp/circuit

61
Q

produces a constant output
voltage for a steadily changing input voltage

A

Differentiator Op Amp

62
Q

a logic input type that provides
hysteresis or two different threshold voltage levels for
rising and falling edge.

A

Schmitt Trigger

63
Q

Converter that is often called as rectifier, but commercially known as power supply

A

AC-DC converter

64
Q

Are electronic devices that convert an input source of Dc to higher or lower voltage level

A

DC-DC converter

65
Q

Two types of DC-DC converter

A

1.Linear
2. Switch-Mode

66
Q

Converter made to act as a variable resistor. Classified either as series or shunt.

A

Linear Voltage Regulator

67
Q

Achieved by the ON and OFF action limiting the amount of current flow based on the varying line and load conditions.

A

Switch-mode Regulator

68
Q

3 types of switch-mode regulator

A

Buck converter (step-down)
Boost Converter (step-up)
Buck-Boost Converter

69
Q

A device that converts DC to AC

A

Inverter

70
Q

Process of changing a specific property of an AC power such as magnitude, frequency, phase into a desired value.

A

AC to AC converter

71
Q

Used to step-up or step-down the AC voltage

A

Transformer

72
Q

Used to convert single phase power into multi-phase (3-phase) or vice versa

A

Phase Converter

73
Q

Device that is used to convert frequency

A

Cycloconverter

Industrial Electronics (3 decks)

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