A-002-05: Silicon controlled rectifier (SCR)
A-002-05-01:
What are the three terminals of a silicon controlled rectifier (SCR)?
Anode, cathode and gate
Gate, base 1 and base 2
Base, collector and emitter
Gate, source and sink
A-002-05-02:
What are the two stable operating conditions of a silicon controlled rectifier (SCR)?
Conducting and non-conducting
Forward conducting and reverse conducting
NPN conduction and PNP conduction
Oscillating and quiescent
A-002-05-03:
When a silicon controlled rectifier (SCR) is triggered, to what other semiconductor diode are its electrical characteristics similar (as measured between its cathode and anode)?
The junction diode
The PIN diode
The hot-carrier diode
The varactor diode
A-002-05-04:
Under what operating condition does a silicon controlled rectifier (SCR) exhibit electrical characteristics similar to a forward-biased silicon rectifier?
When it is gated "on"
When it is gated "off"
When it is used as a detector
During a switching transition
A-002-05-05:
The silicon controlled rectifier (SCR) is what type of device?
PNPN
NPPN
PNNP
PPNN
A-002-05-06:
The control element in the silicon controlled rectifier (SCR) is called the:
gate
anode
cathode
emitter
A-002-05-07:
The silicon controlled rectifier (SCR) is a member of which family?
Thyristors
Phase locked loops
Varactors
Varistors
A-002-05-08:
In amateur radio equipment, which is the major application for the silicon controlled rectifier (SCR)?
Power supply overvoltage "crowbar" circuit
Class C amplifier circuit
Microphone preamplifier circuit
SWR detector circuit
A-002-05-09:
Which of the following devices has anode, cathode, and gate?
The silicon controlled rectifier (SCR)
The bipolar transistor
The field effect transistor
The triode vacuum tube
A-002-05-10:
When it is gated "on", the silicon controlled rectifier (SCR) exhibits electrical characteristics similar to a:
forward-biased silicon rectifier
reverse-biased silicon rectifier
forward-biased PIN diode
reverse-biased hot-carrier diode
A-002-05-11:
Which of the following is a PNPN device?
Silicon controlled rectifier (SCR)
PIN diode
Hot carrier diode
Zener diode
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