Search Engine

Switch In Pspice

Add Question

33 Threads found on Switch In Pspice
Hi, I want to implement a digital controller for a switch mode power supply in Orcad pspice. The controller will take voltages and current values as inputs and create the control signal using intelligent algorithms (state machines, digital control techniques etc). Therefore I need a block that runs a code for processing these values (ie. C
switched-capacitor circuits can be simulated in the time domain (TRAN analysis) only, unless the S/C blocks are replaced by time-continuous equivalent blocks. Based on these linear replacements it is possible to display the frequency-dependent transfer characteristics (BODE plot).
It looks like V1 is set to switch every 3 seconds, but the output only shows 9 milliseconds.
Hello Experts, I am new to use of Verilog-A programming. I had question regarding the use of this language. I want to design the NEMS switch model using the Verilog-A model. Once I design this model will I be able to create a circuit simulation model of the NEMS switch which can be used as a model in pspice netlist to built larger (...)
I believe the non-infinity Roff of the switch causes the problem. Most simply, you'll check the "skip initial transient solution" option to overcome the problem.
Hello all, I would like to design a three terminal switch(similar to mosfet) which has the certain voltage, capacitance and switching speed . How do i do this .? Please help me, Any Leads would be of great help. Thanks in advance.
Hello all, I would like to design a three terminal NEMS device which has the certain voltage, capacitance and switching speed . How do i do this .? Please help me, Any Leads would be of great help. Thanks in advance.
Reconsider the switch parameters. My PMOS transistor model would have a negative threshold voltage, just for clarity Flipping Ron and Roff doesn't seem to serve a reasonable purpose, except confusing yourself. It's all about specifying suitable Von and Voff numbers and connecting the switches correctly.
All your so called "transistors" (SPICE switch elements) have infinite bandwidth. You should add realistic node capacitance. Otherwise you can perform a purely digital simulation with less resource effort.
hello all, I just designed a nems based switch in pspice netlist using the lookup table concept, Now i want to implement a inverter out of it how do i do it. Thanks
Hi, After creating and simulating a RF MEMS switch in HFSS, whenever I try to export equivalent circuit in .lib or HSPICE format, I am unable to generate circuit from .lib in pspice. I tried TINA, LT-SPICE. I tried conversions between .lib and .cir but no luck. Here is my netlist, the error is: "Circuit not found". I know the problem
Hye..can somebody help me to undestand how this switch function.. and can u do the simple simulation using this switch..
i'm trying to simulate sepic converter in pspice(v 16.5) but i'm unable to make pwm switch in pspice .can u help me...........thanks
I don't know about floating nodes, but it won't like C3 - it will produce infinite current on switch on. You may as well remove it as it is across a battery with zero series resistance anyway, or add some series resistance to Vdc. Keith. You are right, C3 is not necessary at all as it has zero ohms in parallel -
Hello everybody, i just started working with pspice OrCAD V16 Demo but now i have two problems. - where do i find some Help about the Parts? i am looking for somthing like: make a rightklick on a part, klick Help, and you will get some information about the part: like settings, behavior .... - how can i find a switch in Orcad? i am looking for s
Is there a part for a simple switch in pspice, single pole single throw. I could also use a single pole four throw switch, if available. Otherwise I'll just break or connect a wire connection. I'm selecting resistors to change the output frequency of a 555 timer. Thanks
Hi. I'm designing a buck regulator. I'm using IR2110 to drive high side mosfet as switch and low side mosfet as a freewheeling diode. schematic is attached. when I run it on pspice the message come "there are no data values in section 1. ignoring this section". and output file message come "INTERNAL ERROR -- Overflow in device X_U1.E_MD3_DlyHS_ABM2
Can anyone hep me to simulate SMPS in pspice using TNY switch 2(TNY268)? SMPS specs input =240V/50Hz Output=4V/1.5 dc thanks & regards tramp
i need somebody to tell me where to locate the modulator on which switch for the 3-level diode clamped i need to apply vpulse and spwm and thpwm modulations on my cct on pspice...the cct is done on pspice widout modulation and all i need a help in modualtion..if there is ready tools for these modualtions in pspice that i can (...)
i need help to find the best pwm value to triggering single phase 3 and 5 level CHB inverter..using IGBT for switch...convert dc to ac voltage.tq
I have block diagram from a system and I want to improve bandwidth of system. I know, I must be draw by Orcad or pspice and simulate by Matlab but I don't know how can do it. I also want to know which component is cut off my bandwidth in system which is consisted : Input structure "Op-Amp,V-I, MUX(switch Array), Electrodes", then Output part "Elect
Can someone help me with a lumped element model of a N-Channel Depletion Mode MOSFET? One that doesn't have the body diodes in it (being used as a switch). If someone can post the schematic or a drawing it would be greatly appreciated. I found this one and I guess I can just remove the diodes. I would be shorting the body to the source. [
ha.. you have a difficult project ahead of you. which version of pspice are you using? the hard part will be how to deal with the floating grounds of your system. each "upper" switch in your bridge has its reference to the center node between teh 2 switches. you know what i mean? each switch needs a gate (...)
Hi, Iam new at using Orcad, I am trying to simulate a dc-dc converter. The "Sbreak" Vswitch component is supplied with a DC input "VPulse" with v1 at 0V and v2 at 5V. But the switch which is suppose to turn on at 1V and off at 0v as its model suggests, does not switch and keeps giving a 0V at the output. If anyone has any (...)
how to simulate the averaged switch model in the pspice?? I dont know how to create the model and the subcircuit in the pspice....i using version 9.2 and this version have a model editor or not?? ************************************************************ Orcad avarage models
dear friends Are there switches in pspice which open and closes at the high or low values of clock pulses. there is a switch sw_open /close but it opens or closes only at t=0. very much thanx in advance tweedle
i am using international rectifier IRF5852 in my design as MOSFET switch, Thier site gives ORCAD model as .sip file. Can anybody tell how to use it in ORCAD pspice software as it accepts models only in terms of .lib and .olb files
do anyone know how to replace the switch network with averaged switch model and simulate using pspice???
switch-Mode Power Supply Spice Cookbook covers it and includes a pspice model - it is included in smpsrecipes.lib and you can see the example netlist in for voltage mode. I don't use pspice so I don't know if there are symbols made - if not, it's easy to make them. good luck!
I will try to help, but I am not sure it will be adequate: You are using the MOST as a switch? If so, in which voltage does it operate? Did you tried transmission gate instead of single n-MOS or single p-MOS? Have you placed dummy ( MOST connected as diodes) before and after the switch? If you do the above, your switch will work (...)
spice syntax from pspice . Dolphin smash , synopsys hspice , Ledit tspice or silvaco smartspice some little difference in netlist . but more import is asic use hspice/Tspice/smartspice switch level use aditspice/hsim /smartsimXT PCB use pspice/ I-spice /multisim
Hi, You can use voltage controlled switch (Sbreak) or current controlled switch (Wbreak). This components are also available in the lite version of pspice, pspice student.
I asked for how to use a push button switch in Capture. In Microsim pspice there used be a switch where one could specify both the closing and opening time for the switch. I couldn't find anything like this in the libraries for Orcad pspice. If anybody know whether there is anything like this please tell me. (...)