Forums » CircuitLab Feature Requests

It would be nice to see some relays, pin diode and shottky diode.

Better yet, most circuits today are digital in concept. A full line of 7400 type ICs and a few speciality MUX-DEMUX ICs would be nice.

More options! I need a tapped inductor..

Add the settings of the wiper arm on potemtiometers, & variable capacitors.

The need for as-yet undefined IC's could be helpful, but probably best implemented in the form of support for user library functions that allow users to enter parameters for their own favorite devices. These could be user specific (stored on the user's own computer) or made 'public' for sharing with others. This is needed just to keep current with new devices that arrive on the market. Information for entering these device parameters can be obtained from manufacturer datasheets.

Need for inductors that fit well with HF & VHF designs is an area that could be enhanced. This includes 'tapped inductors', bi-filar, tri-filar, & quadra-filer toroidal transformers with programmable turns & permeability. Maybe we could do the drawings using existing single-winding inductors if a "coupling-factor association" object were provided to make those into multiple winding transformers? Is there already a way to do that with today's CircuitLab software?

@arevans,

Re: IC models:

"Information for entering these device parameters can be obtained from manufacturer datasheets."

See:

https://www.circuitlab.com/forums/modeling-and-simulation/topic/4jex93sw/importing-transistor-from-datasheet/#comment_2309

The situation is a little simpler for more complex ICs rather than discrete devices but is by no means straight forward.

Search for tags LM334 and behavioural to see examples of how you can build devices in CL.

Re: inductors: "Is there already a way to do that with today's CircuitLab software?"

See:

and search for some of the other tags on that circuit.

See also:

https://www.circuitlab.com/forums/modeling-and-simulation/topic/9wzpcpga/coupled-inducotors-with-saturation/#comment_2594

Are there plans for thyristors? SCR and TRIACs

@thurman,

Although not a component in CL, there's a circuit for discrete thyristor that you may be able to use, in here:

Also, you may like to have a look through:

https://www.circuitlab.com/forums/support/topic/dv473cu6/thyristor/

Sadly, CL still can't handle my behavioural model yet.

I would like to add a state table(Karnaugh table). It would be nice to add a simple table with definable rows and columns.

https://www.circuitlab.com/circuit/d69p63/karnaugh/

Alle components I can flip except the "node". Please make this flip-able as well.

All components have a automatic line out and this works nice for components but not for text. Is it posible to switch this function off for the text object?

Please implement a "duplicate" function(CTRL-D and right_mouse_menu) to duplicate the last selected component.

When I paste a component it is exact placed on top of the coppied component. It would be nice to drop the copy elsewhere to prevent double or unused components.

Automatic route for the wire object would be nice ;-)

I'm new, so maybe what I'm requesting is already there and I just can't find it, but I wanted to use an ideal (or near-ideal) diode for a circuit and couldn't see one. I tinkered for a bit with the diode parameters and found something that seems to give the results I wanted, but I'm not entirely sure. It would be nice to have an ideal diode as one of the pre-set options. Thanks.

@mindbender,

Welcome to CL.

Try entering

ideal diode

in the Search box at the top of each CL page.

:)

It would be REALLY helpful if symbols could be added for:

1) a thermistor

2) a motor

3) a heater

4) a bimetallic strip

Thanks.

Newbie here trying to transcribe a diagram from Make: Electronics.

I'm missing component: PUT 2N6027

Any tips for faking it until (?) that component becomes available?

@dlbewley,

Welcome to CL.

These - and the links within them - should help:

https://www.circuitlab.com/forums/modeling-and-simulation/topic/4jex93sw/importing-transistor-from-datasheet/

https://www.circuitlab.com/forums/modeling-and-simulation/topic/rh4kk7kk/how-to-import-the-transistor-that-i-need/