NEW
Font size
WorksheetsEnergy Management Techniques for SoC
Total questions: 14
Worksheet time: 5mins
(True/False)
Software running on a chip does not contribute any impact of energy consumption of the chip.
True
False
(True/False)
Power dissipated during a short circuit is considered as dynamic power.
True
False
(True or False)
Reducing the supply voltage always leads to a decrease in dynamic power consumption.
True
False
(True/False)
Larger load capacitance increases the speed of operation.
True
False
Power that the gate dissipates during the absence of switching activity is ..
AC power
Static power
DC power
Dynamic power
Power dissipated due to switching of gates is ..
AC power
Static power
DC power
Dynamic power
By ignoring switching activity, which of this relationship of Energy (E) and Power (P) is FALSE:
P = tE
P = tQV
E = Pf
E = CV2
These are possible techniques to reduce power dissipation of a circuit EXCEPT:
Reduce switching activity
Reduce threshold voltage
Reduce voltage supply
Reduce memory size
The impact of wide datapath to power dissipation of a circuit:
P(dyn) increased, P(leak) increased
P(dyn) decreased, P(leak) increased
P(dyn) increased, P(leak) decreased
P(dyn) decreased, P(leak) decreased
Leakage power can be reduced using the following techniques EXCEPT:
Shifting circuit to low leakage
Cooling mode for high temperature parts
Control VDD and VTH
Increase the number of transistors
This method could reduce switching activity:
Clock gating
Power gating
Transistor gating
Bus gating
Which of the following is NOT a factor affecting static power consumption?
Switching frequency
Transistor size
Supply voltage
Temperature
What is the primary cause of leakage power in CMOS technology?
Subthreshold conduction
Gate oxide tunneling
Junction leakage
All of the above
Which of the following statements about dynamic power consumption is TRUE?
It decreases with increased load capacitance.
It is solely determined by static power.
It increases with higher switching frequency.
It is independent of supply voltage.
