SPICE power simulation

[etherios]

pspice power dissipation

I want to calculate the power dissipation of a digital circuit. How will i do it?

 

[elone]

find power dissipated in pspice

Read spice manual, you will find answer !

 

[visualart]

spice power simulation

run the powercompile or Prime Power.

 

[Hughes]

power developed and dissipated in pspice

I want to calculate the power dissipation of a digital circuit. How will i do it?

From the subject's title, I guess you want to caculate the power dissipation by SPICE. This is can be done by the following spice statement:

.tran 1n 100u
.meas tran ivdd avg i(vdd)

where vdd is the voltage source for power supply.

SPICE simulation is rather time-consuming, so large digital circuits may be impossible to simulate in this method.

 

[hgz]

spice power

be careful abou power define, there are many of power style!

BGS!

 

[papyaki]

power dissipation pspice

Hi,

For the attached schematic, we find the total power dissipation of the digitals parts in the out text file ("examine output" in the "analysis" menu).


VOLTAGE SOURCE CURRENTS
NAME CURRENT

X$DIGIFPWR.VDPWR -1.263E-02
X$DIGIFPWR.VDGND -9.437E-05

TOTAL POWER DISSIPATION 6.31E-02 WATTS



JOB CONCLUDED

TOTAL JOB TIME .06

 

[etherios]

pspice power simulation

I have another problem. Let's say that we have a digital design with 2 inputs. We want to simulate the power consuption of the circuit. The power consumption depends on the pattern of the inputs. This means that pattern {10,00} has different dissipation from {10,01} pattern of inputs. So if you want to simulate accurately power you choose random input patterns from a random generator How can i do this in SPICE? Or can i do this in SPICE? Watch out clocks in the inputs do not produce random inputs. I do not care about simulation time... I use TSPice and i use the traditional method of writing netlist, no schematic

 

[edacw1]

spice calculate power

You'd better use Powermill or Nanosim to estimate the power in your design. The tools is faster than Spice!

 

[gold_kiss]

how to find power dissipated in your pspice

Hey if you have a RTL then you can make use of RTL Power Estimator from Synopsys. You need Technology file power_sample.db which gives power sample library. This will be present in synopsys/syn/libraries/syn/power_sample.db .

 

[etherios]

pspice power consumption

The problem is that i want to use transmission gates which are not included in the the technology i have. So i am forced to use SPICE for the simulation.