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Industrial Electronics > Intro > Flashcards

Intro Flashcards

(73 cards)

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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
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...
Summing Amplifier
26
An op-amp that finds the algebraic difference between two input voltages.
Differential Amplifier
27
Formula for Summing amplifier...
Vo = -Rf(V1/R1 + V2/R2 + V3/R3...)
28
Formula for Differential Amplifier
Vo = V2(Rg/R2 + Rg)(R1+Rf/R1) - V1(Rf/R1)
29
Preferred number series of resistor..
E24 Series
30
Electronic Device used to produce square-wave signals. Used as relaxation oscillator, timers, and flip-flops
Multivibrator
31
An integrated circuit used in variety of timer delay, pulse generation, and oscillator application.
555 Timer
32
555 timer can be operated either as a very accurate Monostable, Bistable or Astable Multivibrator? True or False
True
33
Modes of operation of 555 timer
1. Astable 2. Monostable 3. Bistable
34
No stable states, used as an relaxation oscillator
Astable
35
One stable state, one unstable state. Used as timers
Monostable
36
Two stable states. Used as flip-flops.
Bistable
37
Function that conveys information about the behavior of a system. They occur naturally and they are also synthesized.
Signal
38
Signal is necessarily an electric quantity. True or False
False
39
Speech/music information
acoustic wave
40
image information
electromagnetic wave
41
Convey data information
instrumentation outputs
42
Transducers are the component used in signal processing. True or False?
True
43
Classification of Signals
1. Analog or Digital 2. Periodic or Aperiodic
44
Used to represent data as sequence of separate values at any point of time.
Digital Signal
45
Continuous Signal
Analog Signal
46
Signal which repeats itself after a regular interval of time.
Periodic Signal
47
It has no pattern of repetition
Aperiodic Signal
48
maximum displacement or distance moved by a point on vibrating body or wave measured from its equilibrium position
Amplitude
49
Number of repetitions of periodic process in a unit of time period. Measured in Hertz (Hz). 1 repeating per sec 1/sec
Frequency
50
Duration or interval of time required for a cyclic motion or phenomenon to complete a cycle and begin to repeat itself.
Period
51
Ratio of time the signal is High/on state (PW) to the total time of one cycle.
Duty Cycle
52
Formula of Duty Cycle
DC = (PW/T) x 100% = (on time/ on time + off time) x 100%
53
Which of the following can be affected by noise? a. digital signal b. analog signal c. both
c
54
A periodic signal with frequency of 1MHz has a period of what seconds? a. 1ms b. 1μs c. 1ns
b
55
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
56
Physical signals can be converted into a. electromagnetic signal b. electrical signal c. both
c
57
3. Which of the following can be a periodic signal a. analog signal b. digital signal c. both a and b
c
58
Devices that change or modify signals applied to their inputs. The output signals of these devices can be used to perform specific functions
Signal Processor
59
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
instrumentation amplifier
60
produces a steadily changing output voltage for a constant input voltage
Integrator Op Amp/circuit
61
produces a constant output voltage for a steadily changing input voltage
Differentiator Op Amp
62
a logic input type that provides hysteresis or two different threshold voltage levels for rising and falling edge.
Schmitt Trigger
63
Converter that is often called as rectifier, but commercially known as power supply
AC-DC converter
64
Are electronic devices that convert an input source of Dc to higher or lower voltage level
DC-DC converter
65
Two types of DC-DC converter
1.Linear 2. Switch-Mode
66
Converter made to act as a variable resistor. Classified either as series or shunt.
Linear Voltage Regulator
67
Achieved by the ON and OFF action limiting the amount of current flow based on the varying line and load conditions.
Switch-mode Regulator
68
3 types of switch-mode regulator
Buck converter (step-down) Boost Converter (step-up) Buck-Boost Converter
69
A device that converts DC to AC
Inverter
70
Process of changing a specific property of an AC power such as magnitude, frequency, phase into a desired value.
AC to AC converter
71
Used to step-up or step-down the AC voltage
Transformer
72
Used to convert single phase power into multi-phase (3-phase) or vice versa
Phase Converter
73
Device that is used to convert frequency
Cycloconverter

Industrial Electronics (3 decks)

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