Sw to design

[ant]

I dont mean a simulator ,but a sw that inputs performance specifications of
a block(i.e. amplifier,oscillator..)
and outputs a schema with values already calculated.
Thanks.

 

[Brian]

I dont mean a simulator ,but a sw that inputs performance specifications of
a block(i.e. amplifier,oscillator..)
and outputs a schema with values already calculated.
Thanks.

Are you looking for software that does this (a circuits calculator)? If so,
check out http://www.fncwired.com
In the program "FNC-Elcad, you just enter in your parameters and it will do all
the calculations and draw the schematic with all the component values. Some of
the circuits it will calculate for you are: linear power supplies, switching
power supplies, timer circuits, active filters, amplifiers, oscillator circuits
and more. It will also display all the formulas that it used for the circuit. It
also has a draw routine, so that you can draw schematics too. It isn't free, but
it has a very low price (less than the cost of a good technical book).
Check it out,
Brian

 

[Charles Schuler]

I dont mean a simulator ,but a sw that inputs performance specifications of
a block(i.e. amplifier,oscillator..)
and outputs a schema with values already calculated.
Thanks.

The design applications that I am familiar with are rather specific: passive
filter design, active filter design, and so on. If you are looking for a
design package that will replace an educated and experienced EE, it's not
available. If such a software application/package ever becomes available,
that should be an interesting time. I wonder what most of us would do and
who would feed us?

 

[Kevin Aylward]

I dont mean a simulator ,but a sw that inputs performance
specifications of a block(i.e. amplifier,oscillator..)
and outputs a schema with values already calculated.
Thanks.

There is not too much of this around. It is a difficult problem in
general. There are a few bits and pieces that can handle some specific
types of circuits. The key idea here is "optimisation" or "optimiser",
but you need to have the circuit topology first.

SuperSpice http://www.anasoft.co.uk has a DeviceDesigner feature that
will automatically calculate all the bias resisters and mosfet sizes for
a circuit if you specify the node voltages and device currents. SS can
also place an automatically designed filter schematic.

Barcelona Design http://www.barcelonadesign.com/ has design optimisation
for standard topologies that calculates device sizes.

There are also some power supply designers, e.g. LTSpice.

Kevin Aylward
[email protected]
http://www.anasoft.co.uk
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.