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173 Threads found on Schematic Symbols
An olb is a library; do you want to export every component in your library? I don't think you can do that. Why don't you just export the pin list from your schematic?
Hello all, I imported a verilog netlist for a layout previously designed in Encounter. When I try to open the schematic and hit check&save, I get these errors: Error: Net "v_CALCULATION_CNTR<7:0>" shorted to net "N5512,N5511,N5510,N5509,N5508,N5507,N5506,SYNOPSYS_UNCONNECTED__0". Error: (DB-270004): Illegal bus reference - Can't tap "
If you don't have any Footprint libraries open or linked to your project or in your default settings, the Footprint Manager will appear empty. The component footprints are found in either dedicated footprint libraries (.pcblib file extension) or else in integrated libraries with combined schematic symbols and footprints ( .IntLib files). Have yo
OrCAD16.6 - In Capture using 3 MOSFET assigned footprint TO3 (standard in \pcb_lib\symbols\ TO3.dra). When jumping to Allegro PCB Editor trying to use the QuickPlace tool, all my schematic parts are placed on top corner except the 3 MOSFET TO3.
This can also happen if the attributes of one of the ground symbols has been corrupted. They must all be called the same thing, usually Gnd, Com, or Eth for example. That connects them all to the same net. Look very carefully at every ground symbol on your schematic and make sure they are all identical. As a last resort, delete and replace every
Hello, I am trying to use proteus for schematic drawing and creating (drawing) schematic symbols into a library. Does anyone know of a tutorial or youtube video which explains how to draw a schematic symbol and then save it in the library? I seem to find that Proteus does not have a schematic symbol (...)
hey guys new to proteus. im trying to convert from schematic to PCB and some components are missing what can i do? 135425
The schematic doesn't even put the PMOS symbols correctly in place, it's probably rather a "design idea" than a working circuit. There are more problems like missing dead-time generation and non-optimal gate voltage range. The stepper motor is operated with constant voltage and no option to turn off or at least reduce the motor power in idle sta
Make sure you are using models that can simulate. Some schematic symbols have no simulation models attached. There may be a net-list conflict. Check and see if the expected nodes are not 1 & 2 instead of A & K.
HI, At my company, we use Cadence Allegro Design Entry CIS and have a centralized library for all the components. The schematic symbols are maintained as a library file (OLB), but the footprints are maintained as individual files (.dra). Now I was trying to convert the existing library to Altium( altium has an import wizard for this). But for im
1. Don't agree. There are different schematic symbols in use (broken versus continuous channel line). But some tools are using the depletion mode symbol for all MOSFETs (e.g. Cadence). 2. Both MOSFETs types only differ by Vth. In so far the same basic equations apply-
Please define "physical symbols" first. And what software are you wanting to make them for? Components = IPC7351B (AFAIK C is not yet released). Both B & C can be made using the library wizard. (google it). schematic symbols - IPC-2612 available from the IPC website. but IMO it's pants and every company uses their own home grown standard
It is too bad that your schematic is a negative image, is fuzzy, is covered in Chicken pox dots and has text so small that we cannot read it. Why do some of your Mosfet symbols look weird with a "NOT" on its gate that I have never seen before?
Oddly, FB GND also appears (but is not highlighted) at several chassis-ground symbols. These look like output filter returns. Maybe the chassis is the prime signal ground. Or maybe the schematic defeats itself, because "FB GND" is also taking all the supply decoupling cap return currents which might not be such a good thing if you wanted quiet. P
The switch transistors must be insulated gate PFETs (the polarity isn't indicated by the schematic symbols). Enhancement- or depletion mode doesn't matter, the schematic symbol however shows depletion mode.
The circuit can't be right. You have multiple switch nodes shorted by GND symbols. As a first step you should remove all shorts form your schematic. Presuming you have DC- tied to low voltage ground, than the upper two switches can't be controlled by a regular bootstrap driver.
Hi everyone, I have downloaded some altium schematic symbols and footprints online in the format .lia, and try to install it into altium using import wizard. However it does not recognise .lia and hence my symbols and footprints can't be included in my project. Does anyone know how to fix?
IDF PDKs do not contain any components/symbols for ADS except the Model Include symbol that you are seeing. This style of PDK is designed to support a design flow where the schematic only exists in Cadence Virtuoso and simulation is completed by a netlist being generated from Cadence is included in a simulation schematic that contains the (...)
You are talking about PMOSFET and have PMOS symbols in the schematic, but are connecting it like NMOS (positive Vgs and Vds). I assume that you need opto isolation for the 24 V AC inputs. But the common LED cathode ground and connection to 5 VDC control source is cancelling the isolation. Only an AC circuit should be connected to each LED. The D
114424 114425 Running 9.2 I have ran DRC, created netlist file but when I run simulation, it says Unable to find netlist file:Sq From what I can see, they are all there.